Answer:
x = 20
Step-by-step explanation:
We know that the vertically opposite angles are equal.
Accordingly,
41 = 2x + 1
Subtract 1 from both sides.
41 - 1 = 2x
40 = 2x
Divide both sides by 2.
x = 20
2g) Letty is simplifying the square root of 48 using the Product Property of Square Roots. She wants to use the factors 4
and 12 to simplify the radical. Explain why these are not the best factors to use.
The numbers 4 and 12 are not the best factors to use because they do not fully simplify the expression
How to determine the statement/reasonFrom the question, we have the following parameters that can be used in our computation:
Square root of 48
This can be expressed as
√48
Using Letty's solution, we have
√48 = √(4 * 12)
This gives
√48 = 2√12
So, we simplify again
√48 = 2√(4 * 3)
This gives
√48 = 4√3
Hence, the factors are not the best
Instead, she can use 16 and 3
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find x, round to nearest tenth, show proofs HELP
The value of x, given the sides in the right - angled triangle, would be 31. 8 °.
How to find the value of x ?We are given side that is opposite the angle, and we are also given the hypotenuse.
This means that we can use the operation of Sin which is :
Sin ( angle ) = Opposite / Hypotenuse
Opposite = 10 units
Hypotenuse = 19 units
The value of x is :
Sin ( x ) = 10 / 19
Sin ( x ) = 0. 5263
x = Sin ⁻ ⁵ ( 0. 5663 )
x = 31. 8 °
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increase 11,47kg in ratio of 11:7
Answer:
7.0094
Step-by-step explanation:
The two triangles in the diagram are similar.
There are two possible values of x.
Work out each of these values.
state both assumptions* you make in your working.
In this case, the equation is 6/2 = x/3, so x = 6/2 * 3/1 = 9/2.Therefore, the two possible values of x are 11/6 and 9/2.
What are corresponding angles?Corresponding angles are angles that have the same relative position when two parallel lines are cut by a transversal line. When two parallel lines are cut by a transversal, corresponding angles are the same size. Corresponding angles are also known as vertically opposite angles.
In order to determine the value of x, we must assume that the two triangles in the diagram are similar. This means that the corresponding angles are equal and the corresponding sides are proportional. We will also assume that the angles of the triangle are in degrees and the sides are in the same unit of length.
Using the properties of similar triangles, we can calculate the value of x. We start by looking at the given angles, which are both 60°. Since the sides are proportional, we can set up a proportion equation between the two sides. We will use the side lengths given in the diagram to solve the proportion equation.
The proportion equation is: 11/3 = x/2.
Solving this equation for x, we get x = 11/3 * 2/1, which simplifies to x = 11/6.
We can also use the same equation to solve for x using the second given side length, which is 6. In this case, the equation is 6/2 = x/3, so x = 6/2 * 3/1 = 9/2.
Therefore, the two possible values of x are 11/6 and 9/2.
* The assumptions that I made in my working are that the two triangles in the diagram are similar and that the angles are measured in degrees and the sides are measured in the same unit of length.
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help me if x = 12 and y = 5 what is the value of x - 7 + 2y
Given:-
[tex] \sf \: x = 12[/tex][tex] \: [/tex]
[tex] \sf \: y = 5[/tex][tex] \: [/tex]
[tex] \sf \: x - 7 + 2y ---eqⁿ[/tex][tex] \: [/tex]
Solution:-
[tex] \sf \: x - 7 + 2y[/tex][tex] \: [/tex]
put the given values of x nd y in equation∼
[tex] \: [/tex]
[tex] \sf \: 12 - 7 + 2(5)[/tex][tex] \: [/tex]
[tex] \sf \: 5 + 10[/tex][tex] \: [/tex]
[tex] \underline{ \boxed{ \sf \color{hotpink} \: 15 \: }}[/tex][tex] \: [/tex]
━━━━━━━━━━━━━━━━━━━━━━━
hope it helps! :)
Answer:
x - 7 + 2y = 15
Step-by-step explanation:
Given expression,
→ x - 7 + 2y
Now we have to use,
→ y = 5
→ x = 12
Then the value of expression is,
→ x - 7 + 2y
→ 12 - 7 + 2(5)
→ 12 - 7 + 10
→ 12 + 3
→ 15 => {final answer}
Therefore, the answer is 15.
9. A square pyramid is shown. 4 m 6 m 6 m What is the surface area of the pyramid?
The surface area of the pyramid, given the dimensions of the pyramid can be found to be 1, 188 m ²
How to find the surface area of a pyramid ?The surface area of a pyramid can be found by the formula :
= Base area of pyramid + 12 x ( Perimeter of the base x Slant height )
The surface area of this pyramid is :
= ( 6 x 6 ) + 12 x ( ( 6 + 6 + 6 + 6 ) x 4 )
= 36 + 12 x ( 24 x 4 )
= 36 + 12 x 96
= 1, 188 m ²
In conclusion, the surface area of the pyramid is 1, 188 m ².
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PLEASE HELP PLEASE ASAP PLEASE HELP
What are the coordinates of each point after the quadrilateral RSTU is rotated 90 degrees about the origin?
The image of the quadrilateral is R' = (-2, -1), S' = (-4, -2), T' = (-5, -4) and U' = (-3, -3)
How to determine the image of the quadrilateralFrom the question, we have the following parameters that can be used in our computation:
R = (1, -2)
S = (2, -4)
T = (4, -5)
U = (3, -3)
The transformation is given as
90 degrees rotation about the origin
This is represented as
(x, y) = (y, -x)
Using the above as a guide, we have the following:
R' = (-2, -1)
S' = (-4, -2)
T' = (-5, -4)
U' = (-3, -3)
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The coordinates of each point after the quadrilateral RSTU is rotated 90 degrees about the origin are;
M = (1, 2)
N = (2, 4)
P = (4, 5)
Q = (3, 3)
What are the coordinates of each point?The coordinates of the quadrilateral RSTU is
R = (1, -2)
S =(2, -4)
T = (4, -5)
U = (3, -3)
When the quadrilateral RSTU is rotated 90 degrees about the origin, it forms the quadrilateral MNPQ which has the coordinates
M = (1, 2)
N = (2, 4)
P = (4, 5)
Q = (3, 3)
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p+20°
What is the value of p?
p=
3p
O
бр
Appreciate it a lot
Answer:
16°
Step-by-step explanation:
10p+20=180
10p=120
p=16
Select the correct solution for the expression. 2 5 + 3 8 A. 2 5 + 3 8 = 5 13 B. 16 40 + 15 40 = 31 40 C. 10 40 + 24 40 = 34 40 D. 2 5 + 3 8 = 6 40
Therefore, the correct solution for the expression 2/5 + 3/8 is:
2/5 + 3/8 = 31/40
Option B is the correct solution. Answer: B. 16/40 + 15/40 = 31/40
What is number?A number is an arithmetic value that is used to indicate quantity. Hence, a number is a mathematical construct that is utilised for counting, measuring, and labelling. As a result, mathematics is built on numbers. As an illustration, this is a single butterfly, and these are four.
We can simplify the expression 2/5 + 3/8 as follows:
First, we need to find a common denominator. The smallest number that both 5 and 8 divide into evenly is 40.
2/5 can be written as 16/40 (by multiplying the numerator and denominator by 8)
3/8 can be written as 15/40 (by multiplying the numerator and denominator by 5)
Now we can add the fractions:
16/40 + 15/40 = 31/40
Therefore, the correct solution for the expression 2/5 + 3/8 is:
2/5 + 3/8 = 31/40
Option B is the correct solution. Answer: B. 16/40 + 15/40 = 31/40
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What is the sum of the series sum from n equals 1 to infinity of negative 7 times three eighths to the n power question mark.
Answer:
-21/5
Step-by-step explanation:
The given series is:-7(3/8)^1 - 7(3/8)^2 - 7(3/8)^3 - ...
We can see that this is a geometric series with first term a = -7(3/8)^1 = -21/8 and common ratio r = 3/8.
The sum of an infinite geometric series with first term a and common ratio r (where |r| < 1) is given by:
sum = a/(1-r)
Substituting the values for a and r, we get:sum = (-21/8)/(1-3/8) = (-21/8)/(5/8) = -21/5Therefore, the sum of the given series is -21/5.
Suppose that a technology task force is being formed to study technology awareness among instructors. Assume that 12 people will be randomly chosen to be on the committee from a group of 30 volunteers, 21 who are technically proficient and 9 who are not. We are interested in the number on the committee who are not technically proficient.
c)How many instructors do you expect on the committee who are not technically proficient? (Round your answer to the nearest whole number.)
(d)Find the probability that at least 3 on the committee are not technically proficient. (Round your answer to four decimal places.)
(e)Find the probability that at most 4 on the committee are not technically proficient. (Round your answer to four decimal places.)
The prοbability that nο mοre than fοur cοmmittee members are technοlοgically adept is 0.9851, rοunded tο fοur decimal places.
c) By dividing the tοtal number οf applicants whο are nοt technically prοficient (9) by the likelihοοd that any οne οf them wοuld be selected fοr the cοmmittee, it is pοssible tο calculate the anticipated number οf instructοrs οn the cοmmittee whο are nοt technically prοficient:
Number anticipated: 9 * (12/30) = 3.6
Tο the nearest whοle number, we estimate that there will be fοur prοfessοrs οn the cοmmittee whο lack technical prοficiency.
d) We can use the binοmial distributiοn with n=12 (the number οf trials) and p=0.3 tο determine the likelihοοd that at least three members οf the cοmmittee lack technical prοficiency (prοbability οf success, which is defined as selecting a vοlunteer whο is nοt technically prοficient). When X is the number οf technically incοmpetent prοfessοrs οn the cοmmittee, we want tο determine P(X>=3).
P(X>=3) = 1 - P(X<3)
= 1 - P(X=0) - P(X=1) - P(X=2)
[tex]\mathrm{=1 - (12\ choose\ 0)(0.3^0)(0.7^{12}) - (12\ choose\ 1)(0.3^{1})(0.7^{11}) - (12\ choose\ 2)(0.3^2)(0.7^{10)}}[/tex]
[tex]= 1 - 0.00744 - 0.0563 - 0.1667[/tex]
[tex]= 0.7696[/tex]
The likelihοοd that at least three members οf the cοmmittee lack technical prοficiency is 0.7696, rοunded tο fοur decimal places.
e) Using the same binοmial distributiοn as in part d), we can calculate the likelihοοd that at mοst 4 members οf the cοmmittee are nοt technically adept by adding the prοbabilities fοr X=0, 1, 2, 3, and 4:
P(X<=4) = P(X=0) + P(X=1) + P(X=2) + P(X=3) + P(X=4)
[tex]\mathrm{= (12\ choose\ 0)(0.3^0)(0.7^{12}) + (12 \ choose\1)(0.3^1)(0.7^|{11}) + (12 \ choose\2)(0.3^2)(0.7^{10})}\\\mathrm{ + (12 \ choose\3)(0.3^3)(0.7^9) + (12 \ choose\4)(0.3^4)(0.7^8)}[/tex]
[tex]= 0.9851[/tex]
Rounding tο four decimal places, the likelihood that no more than four committee members are technοlogically savvy is 0.9851.
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Pietro and Eva are playing a game in which they toss a coin three times. Eva gets a point if no two consecutive toss results match (as in H-T-H). Pietro gets a point if exactly two consecutive toss results match (as in H-H-T). If all three toss results match, no one scores a point. The first player to get 10 points wins. Is this a fair game? Explain. If it is not a fair game, change the rules to make it fair.
This is not a fair game since P + Q is greater than 1. To make game fair, we can modify conditions for scoring points. One possible modification is to give Pietro a point if all three toss results match (HHH or TTT).
This gives Pietro an additional outcome to score a point, which makes the game fair. Another modification is to give Eva a point if any two toss results match (H-T-H, T-H-T, T-T-H, H-T-T, HHT, TTH, THT, HTT). This also makes the game fair since both players have 3 possible outcomes to score a point.
There are 2³ = 8 possible outcomes when a coin is tossed three times. We can list them as follows:
HHH, HHT, HTH, THH, TTH, THT, HTT, TTT
Let E be the event that no two consecutive toss results match and let P(E) be the probability of event E. We can count the number of outcomes that satisfy E as follows:
HTH
HTT
THT
TTH
THT
TTT
Therefore, there are 6 outcomes that satisfy E and P(E) = 6/8 = 0.75.
Let P be the probability that Pietro scores a point and let Q be the probability that Eva scores a point. We can count the number of outcomes that satisfy each player's condition as follows:
Pietro: HHT, HTH, THH (3 outcomes)
Eva: H-T-H, T-H-T, T-T-H, H-T-T (4 outcomes)
Therefore, P = 3/8 and Q = 4/8 = 1/2.
The game is not fair since P+Q is greater than 1. This means that the players have a greater than 50% chance of scoring a point on each turn, so the first player to reach 10 points will have an advantage.
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If 11 dinner guests want salad, how many ounces of dressing will be necessary? Round the answer to the nearest whole ounce.
The amount of dressing required to serve 11 guests who still want salad is therefore around 11 ounces. The answer, when adjusted to the closest whole ounce, is 11 ounces.
A nearest number is what?Round the figure up if 5, 6, 7, 8, or 9 follow the amount you are rounding. For instance, 40 when rounded to a nearest ten is 38. Round the figure down if it is followed by the digits 0, 1, 2, 3, or 4. 33 becomes 30 if it is adjusted to the nearest ten.
Many variables, such as the salad's serving size, the type of sauce, and personal preferences, will affect how much dressing is needed for 11 dinner guests. But as a general rule, a salad with dressing serving size is roughly 2-3 teaspoons (1 ounce = 2 tablespoons).
Assuming that each visitor will consume 2 tablespoons of dressings, the necessary quantity of dressing would be:
11 guests x 2 tablespoons/guest = 22 tablespoons
Tablespoons to ounces conversion:
22 tablespoons / 2 tablespoons/ounce = 11 ounces
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Can someone help me find X?? Please Help IXL is so difficult ive been doing this for 4 hours.
The value of x is 47 from the given figure.
What are Angles?An angle is formed when two straight lines or rays meet at a common endpoint.
The sum of angles is 180 degrees from the figure.
x-2+x-2+x-2+x-2=180
Add the like terms
4x-8=180
Add 8 on both sides
4x=188
Divide both sides by 4
x=188/4
x=47
Hence, the value of x is 47 from the given figure.
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pls help me i need help
Answer:
77
Step-by-step explanation:
Bisects means that the angle is split in half perfectly thus if angle JKM is 154 then JKR is 154/2 = 77
On the school playground, the slide is due west of the tire swing and due south of the monkey bars. If the distance between the slide and the tire swing is 7 meters and the distance between the tire swing and the monkey bars is 10 meters, how far is the slide from the monkey bars? If necessary, round to the nearest tenth.
The slide is approximately 12.2 meters away from the monkey bars.
What is Pythagoras Theorem?
You may determine the right angled triangle's missing length using Pythagoras' Theorem. The triangle has three sides: the adjacent, which doesn't touch the hypotenuse, the opposite, which is usually the longest, and the hypotenuse (which is between the opposite and the hypotenuse).
We can solve this problem by using the Pythagorean theorem, which states that for a right triangle, the sum of the squares of the lengths of the two shorter sides is equal to the square of the length of the longest side (the hypotenuse).
Let's label the distance between the slide and the monkey bars as "x". We can see that the distance between the slide and the tire swing, and the distance between the tire swing and the monkey bars form the two shorter sides of a right triangle, with the hypotenuse being the distance between the slide and the monkey bars.
Using the Pythagorean theorem, we have:
[tex]x^2 = 7^2 + 10^2\\\\x^2 = 49 + 100\\\\x^2 = 149\\\\x = \sqrt{(149)}[/tex]
x ≈ 12.2 meters (rounded to the nearest tenth)
Therefore, the slide is approximately 12.2 meters away from the monkey bars.
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Divide Katrina's number line into
eighths. Divide Eric's number line into
fourths. Show a point on Katrina's
number line that is less than 1. Show
a point on Eric's number line that is
greater than 1. Write fractions to label
the points you picked.
1. A point less than 1 in Katrina's number line is [tex]\frac{3}{8}[/tex]
2. A point greater than 1 in Eric's number line is 1[tex]\frac{1}{4}[/tex]
What is a number line and how do you identify point less or greater than 1?A number line is a straight line with numbers placed at equal distances from each other.
To identify a line less than 1 in a number line divided into 8, we need to know the value of what each point would be
Each values in Katrina's number line should be 0, [tex]\frac{1}{8}[/tex], [tex]\frac{2}{8}[/tex] , [tex]\frac{3}{8}[/tex], [tex]\frac{4}{8}[/tex], [tex]\frac{5}{8}[/tex], [tex]\frac{6}{8}[/tex], [tex]\frac{7}{8}[/tex] 1
To identify the line greater than 1 in a number line divided into 4, we need to know the values of what each points would be
Each values in Eric's number line should be 1, 1[tex]\frac{1}{4}[/tex], 1[tex]\frac{2}{4}[/tex], 1[tex]\frac{3}{4}[/tex], 2
Check the images below to get a proper view of how your number line should look like.
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Data was collected on the amount of time that a random sample of 8 students spent studying for a test and the grades they earned on the test. A scatter plot and kind of fit were created for the data.
Determine the equation of the line of fit
y= 15x + 70
y= 15x + 40
y= 30x + 70
y= 30x + 40
Equation of best fit line on scatter plot is y = 30x + 40
Correct option is D.
What is straight line?A straight line is an infinite one-dimensional shape with no width. An infinite combination of points connected on either side of the point. A straight line has no curves. It can be horizontal, vertical, or slanted. An angle drawn between any two points on a straight line is always 180 degrees.
Given,
Scatter plot of the data of studying time of students
By the graph, point on the line are (0, 40) and (2,70)
Equation of the line
y - y₁ = ((y₂-y₁)/(x₂-x₁))(x-x₁)
y - 40 = ((70-40)/(2-1))(x-0)
y - 40 = (30/1)x
y - 40 = 30x
y = 30x + 40
Hence, y = 30x + 40 is the equation of the best fit line in scatter plot.
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x varies directly as the product of u and v and inversely as their sum. if x =3 when u = 3 and v =1 what is the value of x if u =3 and v = 3?
Answer:
x=9
Step-by-step explanation:
Which of the following explains why this inequality is true? 7 3 8 × 4 5 < 7 3 8 A. When 7 3 8 is multiplied by a number greater than 1, the product is more than 7 3 8 . B. When 7 3 8 is multiplied by a number greater than 1, the product is less than 7 3 8 . C. When 7 3 8 is multiplied by a number less than 1, the product is more than 7 3 8 . D. When 7 3 8 is multiplied by a number less than 1, the product is less than 7 3 8 . ALSO IT IS FRACTIONS BUT IM TO LAZY TO DO IT S OHELP ME ASAP
The correct expIanation is B. When 7 3 8 is muItipIied by a number greater than 1, the product is Iess than 7 3 8.
A fraction is a way of representing a part of a whoIe or a ratio between two quantities. It consists of a numerator (top number) and a denominator (bottom number) separated by a horizontaI Iine.
To compare the two fractions, we can convert them to decimaIs.
7 3/8 is equaI to 7.375, and
4/5 is equaI to 0.8.
MuItipIying 7.375 by 0.8, we get:
7.375 × 0.8 = 5.9
This means that 7 3/8 muItipIied by 4/5 is Iess than 7 3/8, since the product is 5.9 which is Iess than 7.375.
Therefore, the correct expIanation is B. When 7 3 8 is muItipIied by a number greater than 1, the product is Iess than 7 3 8.
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What are all possible values of x that satisfy the inequality x3−8≥1?
We have the following response after answering the given question: inequality {x | x ≥ ∛9} or [∛9, ∞) in interval notation.
What is inequality?A connection between two expressions or values that is not equal is known as an inequality in mathematics. Inequality follows imbalance, therefore. In mathematics, an inequality makes a connection between two values that are not equal. Egality and inequality are different. The not equal symbol is often used to indicate that two values are not equal (). Various inequalities are employed to contrast values of all sizes. By changing the two sides until just the variables are left, one may solve many straightforward inequalities. However a variety of factors support inequality: Negative values are split or added on either side. Switch between the left and right.
[tex]x^3[/tex] - 8 ≥ 1
Adding 8 to both sides, we get:
[tex]x^3[/tex] ≥ 9
Taking the cube root of both sides, we get:
x ≥ ∛9
Since ∛9 is approximately 2.08, the inequality is satisfied for all values of x greater than or equal to 2.08. Therefore, the set of all possible values of x that satisfy the inequality is:
{x | x ≥ ∛9} or [∛9, ∞) in interval notation.
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Use substitution to solve each system of equations.
y=5x+1
4x+y=10
y = 5x+1. ____equ(1)
4x + y = 10. ____equ (2)
substituting equ(1) into equ(2)
4x + y = 10
4x + 5x + 1 = 10
9x = 10 -1
9x = 9
x = 1
x = 1 into equ (1)
y = 5x + 1
y = (5 ×1) + 1
y = 5 + 1
y = 6
I hope this will help.
have a nice day dear :)
can someone help me please
use the Remainder Theorem and synthetic division please
The value of the function f(-10), f(2) and f(3) is 20201, 17 and 142 respectively.
What is the remainder theorem?According to the remainder theorem, when a polynomial p(x) is divided by a linear polynomial q(x) whose zero is x = a, the remainder is given by r = p(a). The remainder theorem enables us to calculate the remainder of the division of any polynomial by a linear polynomial, without actually carrying out the steps of the long division.
Given that, f(x)=2x⁴+x²-10x+1.
Here, f(-10)
Substitute x=-10 in the given function, we get
f(-10)= 2(-10)⁴+(-10)²-10(-10)+1
= 20000+100+100+1
= 20201
Substitute x=2 in the given function, we get
f(2)= 2(2)⁴+(2)²-10(2)+1
= 32+4-20+1
= 17
Substitute x=3 in the given function, we get
f(3)= 2(3)⁴+(3)²-10(3)+1
= 162+9-30+1
= 142
Therefore, the value of the function for x=-10 is 20201.
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What is the surface area?
24 m
26 m
11 m
square meters
The surface area of the rectangle will be 24 meters. The correct option is A.
What is a surface area?The surface area of the rectangular plate is calculated by applying the formula for the area of the rectangle.
A rectangle is a type of quadrilateral with four sides and four right angles. The opposite sides of a rectangle are parallel and equal in length, and the opposite angles are congruent (equal). This means that a rectangle has two pairs of congruent sides and four right angles.
Surface area = Length x Width
Surface area = 6 x 4
Surface area = 24 square meters
Therefore, the surface area of the rectangle will be 24 square meters.
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The complete question is given below.
Find the area of the upper surface of the rectangular plate having a length of 6 meters and a width of 4 meters.
The measure of an angle is 76.6 less than the measure of its supplementary angle
The measure of the angle x with its supplementary angle is 51.7°.
What distinguishes complimentary angles from supplementary angles?The difference between complementary and supplementary angles is that complementary angles add up to 90 degrees, whereas supplementary angles add up to 180 degrees. In other words, the total of two complimentary angles' measurements equals 90 degrees. The total of the measurements of two additional angles is 180 degrees.
Let us suppose the measure of angle = x.
The measure of its supplementary angle is 180° - x.
From the given statement we have:
x = (180° - x) - 76.6
2x = 103.4
x = 51.7
Hence, the measure of the angle x with its supplementary angle is 51.7°.
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Determine if it is Exponential growth or decay. Use the information below to plug in the numbers to the formula. f(x)=a(1+or-r)^x
initial value: 40
growth rate: 100%
The equation for the situation is f(x) = 40(1+1)^x, which simplifies to f(x) = 40(2)^x.
What is Exponential growth or decay?Exponential growth is a process where a quantity increases at a constant percentage rate per unit of time. It can be represented by:
The equation f(x) = a(1+r)^x,
where "a" is the initial value, "r" is the growth rate, and "x" is the number of time periods.
This is exponential growth because the growth rate is given as 100%, which means the value is doubling with each step.
The formula for exponential growth is f(x) = a(1+r)^x,
where
r is the growth rate expressed as a decimal.
In this case, r = 1, since the growth rate is 100%, or 1.00 as a decimal.
So, the equation for the situation is f(x) = 40(1+1)^x, which simplifies to f(x) = 40(2)^x.
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calculus/ how do i do this
Reason:
The graph starts off very steep at x = 0. As x increases, the steepness goes down. Meaning the tangent lines become more shallow as you move to the right.
This tells us that the person learning the new task learns a lot at first. Then as time wears on, they learn less and less, until leveling off at some plateau.
If your teacher has covered derivatives, then you'll find the derivative of y = 1-e^(-0.28x) is dy/dx = 0.28e^(-0.28x)
Graph this derivative function using something like GeoGebra. Notice how the derivative curve is always decreasing. Therefore, x = 0 is when the derivative is largest, which points to the original function having the steepest increase (aka largest instantaneous rate of change).
See the graph below.
Solve the quadratic equation by using a numeric approach. 0.02x squared + 0.1 x minus 2 = 0 a. x = 2.3 and x = -29.2 c. x = 5.6 and x = -12.2 b. x = 7.8 and x = -12.8 d. x = 1.3 and x = -22.6 Please select the best answer from the choices provided A B C D
The solution to the equation is 7.8075 or -12.8075
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
We have the Quadratic Equation: 0.02 x² + 0.1 x - 2 = 0
2x² + 10x - 200 = 0
Using Discriminant Method
D = √b² - 4ac
D = √10² - 4(2)(-200)
D = √100 + 1600
D = √1700
D = 41.23
So, x = -b± D/2a
x = -10 ± 41.23 / 4
x= -10 + 41.23/4 or x= -10 -41.23 /4
x= 31.23/4 or x= -51.23/4
x= 7.8075 or x = -12.8075
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Dairy Queen, as part of Warren Buffet’s Berkshire Hathaway (BRKA) with 6,400 locations in the USA, gave away free ice cream cones to celebrate its 75th anniversary. If Warren Buffet has a bond bought at 105.25 at 4.75%, what is the current yield?
Current yield = 4.51%
What is the price of a bond?The price of a bond is equal to the future cash flows' present value, discounted at the appropriate discount rate—the yield to maturity.
The price of a bond is the amount that investors are willing to spend on an existing bond. Bond prices are stated as a percentage of face (par) value in the online offering table and statements you get.
Current Yield=Annual Cash Inflows/Market Price
Annual cash flow is 4.75% of 100 = $4.75
Market Price of Bond = $105.25
Current Yield = 4.75/105.25
=4.51%
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In order to start a small business, a student takes out a simple interest loan for $8000.00 for 9 months at a rate of 9.00%.
a. How much interest must the student pay?
b. Find the future value of the loan.
In response to the aforementioned query, we may say that The loan's interest future value is $8640 as a result.
what is interest ?By dividing the principal by the interest rate, the passage of time, and other factors, simple interest is determined. Simple return equals principle plus interest plus hours is the formula used in marketing. The easiest way to compute interest is by using this method. The most typical method for calculating interest is as a portion of the principle amount. For example, if he borrows $100 from a buddy and agrees to pay back the loan at 5% interest, he will only pay his share of the 100% interest. $100 (0.05) = $5. When you borrow money, you must pay interest, and you must charge interest when you lend it. Typically, interest is determined as an annual percentage of the loan total. The loan's interest is the name given to this percentage.
Interest is calculated as follows: Principal x Interest Rate x Time
where Principle represents the loan amount, Rate is the interest rate, and Time represents the loan's term in years. We may enter the figures since the loan is for 9 months, or 0.75 years:
Interest: $540 ($8000 x 0.09 x 0.75);
As a result, the student is required to pay interest of $540.
b. The following formula can be used to determine the loan's future value:
Principle x (1 + Rate x Time) = Future Value
where the same values for Principle, Rate, and Time apply as in section a. When we enter the values, we obtain:
Future Value = $8000 x (1 + 0.09 x 0.75), which is $8640.
The loan's future value is $8640 as a result.
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