Answer:
task b
Step-by-step explanation:
What is the solution to this equation?
5x= 35
A. x = 7
B. X= 175
C. x = 30
D. x= 9
Answer:
7Option A is the correct option
Step-by-step explanation:
[tex]5x = 35[/tex]
Divide both sides of the equation by 5
[tex] \frac{5x}{5} = \frac{35}{5} [/tex]
Calculate
[tex]x = 7[/tex]
Hope this helps...
Best regards!!
Answer:
Option A
Step-by-step explanation:
5x = 35
5x/5 = 35/5
x = 7
I don't understand how to do this problem.
Answer:
First blank: 6a
Second blank: 2/3
Third blank: 21.6
Fourth blank: 3.9
Step-by-step explanation:
Basically, all you need to do is distribute the 2/3 to the stuff inside the parentheses. That means in the first blank, write 6a inside since you're multiplying 2/3 and 6a, and then in the second blank you write 2/3 since you're multiplying 2/3 and 9 together.
2/3*6a+2/3*9 = 21.6 is what you should have.
Now, just solve for a.
4a+6 = 21.6
4a=15.6
a=3.9
Answer:
2/3 * 6a+ 2/3 +9 = 21.6
a = 3.9
Step-by-step explanation:
2/3 ( 6a+9) = 21.6
Distribute
2/3 * 6a+ 2/3 +9 = 21.6
4a + 6 = 21.6
Subtract 6 from each side
4a = 15.6
Divide each side by 4
4a/4 = 15.6/4
a =3.9
Given that α and β are the roots of the quadratic equation [tex]2x^{2} +6x-7=p[/tex], and α=2β, a) find the value of p. b) form a quadratic equation with roots α+2 and β+2
Answer:
[tex]\large \boxed{\sf \ \ \ p=-11 \ \ \ }[/tex]
Step-by-step explanation:
Hello,
[tex]\alpha \text{ and } \beta \text{ are the roots of the following equation}[/tex]
[tex]2x^2+6x-7=p[/tex]
It means that
[tex]2\alpha^2+6\alpha-7=p \\\\2\beta ^2+6\beta -7=p \\\\[/tex]
And we know that
[tex]\alpha= 2\cdot \beta[/tex]
So we got two equations
[tex]2(2\beta)^2+6\cdot 2 \cdot \beta -7=p \\\\<=>8\beta^2+12\beta -7=p\\\\ and \ 2\beta ^2+6\beta -7=p \ So \\\\\\8\beta^2+12\beta -7 = 2\beta ^2+6\beta -7\\\\<=>6\beta^2+6\beta =0\\\\<=>\beta(\beta+1)=0\\\\<=> \beta =0 \ or \ \beta=-1[/tex]
For [tex]\beta =0, \ \ \alpha =0, \ \ p = -7[/tex]
For [tex]\beta =-1, \ \ \alpha =-2, \ \ p= 2-6-7=-11, \ p=2*4-12-7=-11[/tex]
I assume that we are after two different roots so the solution for p is p=-11
b) [tex]\alpha +2 =-2+2=0 \ and \ \beta+2=-1+2=1[/tex]
So a quadratic equation with the expected roots is
[tex]x(x-1)=x^2-x[/tex]
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Apply the distributive property to create an equivalent expression. 4(x-2+y)= Help ASAP
4(x - 2 + y)
= 4x - 8 + 8y
= 4x + 8y - 8
Happy to help!
Answer:
4x-8+4y
Step-by-step explanation:
When you distribute the 4, it becomes 4x-8+4y, and this statement is equivalent to 4(x-2+y)
02.06A LC) Which number is not in scientific notation? 02.06A
the answer is (A) you cant have 11 it should be 1.1 x 10^22
factorise x^3-3x-2 ASAP
See the answer in attachment
Answer:
(x-2)(x+1)(x+1)
Step-by-step explanation:
x³-3x-2=
(x-2)(x+1)(x+1)
Find the common ratio of the geometric sequence: 3,4,16/3,…
Answer:
4/3
Step-by-step explanation:
The common ratio is the number you multiply by 3 to get 4. This would be 4/3.
Answer:
4/3
Step-by-step explanation:
Well let's work backwards.
3 * what = 4
To figure out "what" we do,
4 ÷ 3
= 1.3333333333
As a fraction it is 4/3.
Thus,
the common ratio is 4/3.
Hope this helps :)
What is the equation of the following line? Be sure to scroll down first to see all answer options.
Answer:
E
Step-by-step explanation:
The equation of a line passing through the origin is
y = mx ( m is the slope )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (0, 0) and (x₂. y₂ ) = (8, 2) ← 2 points on the line
m = [tex]\frac{2-0}{8-0}[/tex] = [tex]\frac{2}{8}[/tex] = [tex]\frac{1}{4}[/tex]
y = [tex]\frac{1}{4}[/tex] x → E
Answer:
y=1/4x
Step-by-step explanation:
because its the answer
if (x)= 2x square minus 1,then f(-3)
Answer:
17.
Step-by-step explanation:
f(x) = 2x^2 - 1
f(-3) = 2(-3)^2 - 1
= 2 * 9 - 1
= 18 - 1
= 17
Hope this helps!
Hope it will help u....
On the coordinate plane below, Point P is located at (2,-3), and point Q is located at (-4,4).
Find the distance between points P and Q Round your answer to the nearest whole number.
Answer:
Approximately 9 units.
Step-by-step explanation:
To find the distance between two ordered pairs, we can use the distance formula. The distance formula is:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]
Let (2,-3) be x₁ and y₁ respectively, and let (-4,4) be x₂ and y₂, respectively.
[tex]d=\sqrt{(-4-2)^2+(4--3)^2} \\d=\sqrt{(-6)^2+(7)^2} \\d=\sqrt{36+49} \\d=\sqrt{85}\approx9[/tex]
(TIMED PLEASE HELP!!) The area of the two triangles is given by the functions: Area of Triangle A: x2 + x Area of Triangle B: x2 – 3x Which function represents the sum of the areas of the two triangles? (a) 4x (b)–4x (c) x2 – 4x (d) 2x2 – 2x
Answer:
D
Step-by-step explanation:
Here, we are given the values of the areas of the two triangles and we want to find the sum of these areas
The sum can be found by adding the area of triangle A to the area of triangle B
That would be;
x^2 + x + x^2-3x = 2x^2 -2x
Answer:
d
Step-by-step explanation:
PLEASE HELP ME GUYS!! In a complete sentence, describe the angle relationship between ∠DAE and ∠EAF. Then write and solve an equation based on the relationship you identified in order to find the measure of ∠DAE.
Answer:
Hey there!
Angle DAE and EAF are complementary angles, meaning that they add to 90 degrees.
Thus, we have 65+x=90
Solving for x we have 25.
Hope this helps :)
For the first 2 home football games, the concession stand sold a total of 70 hamburgers. How many hamburgers can they expect to sell for all 11 games? Round to the nearest hamburger.
Answer:
385 hamburgers.
Step-by-step explanation:
So the data they have given us is that there have been 2 home games, with 70 hamburgers sold. If we divide the number of hamburgers sold by the number of games (70/2), we come up with the average hamburgers sold per game, which is 35. We can use an equation to find the amount of hamburgers sold for every x amount of games. [tex]h = 35x[/tex], with x being the amount of games, and h being the total amount of hamburgers. If you plug in 11 for x, you will get 385.
Find the value of for which 3,5, p+5, 25 are in
proportion
Answer:
p = 10
Step-by-step explanation:
Maybe you want ...
[tex]\dfrac{3}{5}=\dfrac{p+5}{25}\\\\15=p+5\qquad\text{multiply by 25}\\\\10=p\qquad\text{subtract 5}[/tex]
The value of p is 10 to make (p+5)/25 = 3/5.
Please answer this question now
Answer:
s = 11.4
Step-by-step explanation:
The following data were obtained from the question:
Angle S = 60°
Opposite S = s =?
Opposite U = u = 13
Opposite T = t = 5
Thus, from the data obtained from the question, we can calculate the value of s by using cosine rule as shown below:
s² = u² + t² – 2ut Cos S
s² = 13² + 5² – 2 × 13 × 5 × Cos 60
s² = 169 + 25 – 130 × 0.5
s² = 194 – 65
s² = 129
Take the square root of both side.
s = √129
s = 11.4
Therefore, the value of s is 11.4
Find each product
6xy2(x4+3x3y+3xy3)
PLEASE HELP!!! ASAP!!
Answer:
6x^3y^2+18x^4y^3+18x^2y^5
Step-by-step explanation:
Multiply each term:
6x^3y^2+18x^4y^3+18x^2y^5
Plz mark me brainliest!!
Help pleaseeeeeeeeee
Answer:
39°27°28°Step-by-step explanation:
1.
[tex]Hypotenuse = 32\\Adjacent = 25\\Angle\:\alpha \:=?\\Using \: SOHCAHTOA ;\\Cos \:\alpha = \frac{adj}{hyp} \\Cos \:\alpha = \frac{25}{32}\\\\\alpha = Cos^-^1\frac{25}{32} \\\alpha =38.62\\\\\alpha = 39[/tex]
2.
[tex]Opposite = 8\\Adjacent = 16\\\alpha =?\\Using SOHCAHTOA\\Tan\:\alpha = \frac{opp}{adj} \\Tan\:\alpha = \frac{8}{16} \\Tan \:\alpha =1/2\\\alpha = Tan^-^11/2\\\\\alpha =26.56\\\alpha =27[/tex]
3.
[tex]Hypotenuse = 41\\Opposite = 19\\\alpha = ?\\Using\: SOHCAHTOA\\Sin\:\alpha = \frac{opp}{hyp} \\Sin \:\alpha =\frac{19}{41}\\\\\alpha =Sin^-^1 (19/41)\\\\\alpha =27.6\\ \alpha =28[/tex]
how high does the ball roll on its 3rd time up the cylinder's side
( d is 1/8 )
Step-by-step explanation:
aₙ = 2 (¼)ⁿ⁻¹
a₃ = 2 (¼)³⁻¹
a₃ = 2 (¼)²
a₃ = ⅛
Answer:
1/8 inches
Step-by-step explanation:
Using the given function
d(n) = 2(1/4)^(n-1)
the initial value is 2, which is the height of the ball after the first roll.
For the third roll, n = 3
d(n) = 2 (1/4)^(3-1)
d(n) = 2 (1/4)^2
d(n) = 2/16
d(n) = 1/8
Zhi bought 18 tickets for games at a fair. Each game requires 3 tickets. Zhi wrote the expression 18 – 3g to find the number of tickets she has left after playing g games. Diego correctly wrote another expression, 3(6 – g), that will also find the number of tickets Zhi has left after playing g games. Use the drop-down menus to explain what each part of Zhi's and Diego's expressions mean.
Answer: In zhi's equation, the 18 is the initial amount of tickets, and the 3g means 3 times the amount of games.
Diegos equation is the same, but write in factorised form. The 3 multiplies with the 6 to create 18, and the 3 multiple with the g to create 3g
these polygons are similar. find the value of x
Answer:
20Option D is the correct option.
Step-by-step explanation:
As they are similar, correspondence sides are in common ratios:
[tex] \frac{x}{10} = \frac{10}{5} [/tex]
Apply cross product property
[tex]5x = 10 \times 10[/tex]
Multiply the numbers
[tex]5x = 100[/tex]
Divide both sides of the equation by 5
[tex] \frac{5x}{5} = \frac{100}{5} [/tex]
Calculate
[tex]x = 20[/tex]
Hope this helps...
Best regards!!
Which quadrilaterals have diagonals that are always
perpendicular to each other?
Answer:
rhombus and square
Answer:
Rhombus and square
Step-by-step explanation:
The quadrilaterals that satisfy this condition are rhombi and squares.
Lines L and K are parallel to each other. Measure of angle A= 120 degrees, and measure of angle C= 80 degrees. What is the number of degrees in measure of angle B? Please answer ASAP! Thanks!
Answer:
160°
Step-by-step explanation:
The way I am doing it may not be the correct way but it works. What I did was take 90° away from 120° to make it 30° as if there is a line. I did this so I could make a triangle. Using the triangle addition postulate, I Added 30 to 80 to get 110 than subtracted that from 180 to get 70. Lastly, i added 90° to 70° to get 160°
Hope this helped you get the answer :)
The measure of angle B in Parallel lines will be 160°.
What are parallel lines?
Parallel lines are those lines that never intersect at any point and always maintain a constant distance.
We have,
Lines L and K are parallel to each other.
And,
The measure of angle A = 120°
The measure of angle C = 80°
Now,
Draw a straight line from A to B,
So, that ∠BAl = 90° and
∠ABk = 90°
We get,
ΔABC,
Now in ΔABC,
∠C = 80°
∠A = 120 - 90 = 30°
So, Using Tringle angle sum property,
80° + 30° + ∠ABC = 180°
⇒
∠ABC = 180° - 110°
∠ABC = 70°,
Now,
Adding ∠ABC and ∠ABk, to get ∠CBk,
i.e.
∠CBk = ∠ABC + ∠ABk = 70° + 90°
∠CBk = 160°
Hence we can say that the measure of angle B will be 160°.
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A library buys 36 English books, 48 Science books and 72 Mathematics books. The thickness of each book is the same. Now, the librarian wants the books to be placed in stacks, such that each stack has books of the same subject, and the height of each stack is the same. Also, the librarian wants as few stacks as possible. How many stacks of books will there be?
Answer:
13
Step-by-step explanation:
The GCF of 36, 48, and 72 is 12 so there will be 36 / 12 = 3 stacks of English books, 48 / 12 = 4 stacks of science books and 72 / 12 = 6 stacks of math books for a total of 3 + 4 + 6 = 13 stacks.
Answer:
235
Step-by-step explanation:
Find the inverse of the function 3+4x/1-5x
Answer:
the inverse of the function f^-1(x)=(x-3)/(4+5x)
Step-by-step explanation:
( 3+4x)/(1-5x)
y=4x+3/1-5x swap the variables
x=4y+3/1-5y solve for y
y=x-3/4+5x
The inverse of a function is :y=x-3/4+5x
What is inverse of a function?
The inverse function returns the original value for which a function gave the output.
If you consider functions, f and g are inverse, f(g(x)) = g(f(x)) = x. A function that consists of its inverse fetches the original value.
Steps are:
How do you solve inverse functions step by step?Finding the Inverse of a FunctionFirst, replace f(x) with y . Replace every x with a y and replace every y with an x .Solve the equation from Step 2 for y . Replace y with f−1(x) f − 1 ( x ) . Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.for example:
Suppose, f(x) = 2x + 3 is a function.
Let f(x) = 2x+3 = y
y = 2x+3
x = (y-3)/2 = f-1(y)
This is the inverse of f(x).
Given function:
f(x)= ( 3+4x)/(1-5x)
now, swap the variables x and y.
y=4x+3/1-5x
Now solving for y
x=4y+3/1-5y
y=x-3/4+5x
Hence, the inverse of the function f^-1(x)=(x-3)/(4+5x).
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Find the missing side. Round your answer to the nearest tenth.
Answer:
Step-by-step explanation:
In a right triangle, the sides forming the right angle also determine the angle opposite one of the sides.
Tan(29) =26/x Multiply both sides by x
x tan(29) = 26 Divide by tan(29)
x = 26/tan(29) Find tan(29)
x = 26/0.5543 Divide
x= 46.9
El largo de un rectángulo es 8 metros mayor que su ancho. Si el ancho del rectángulo es x metros, la expresión algebraica que representa su perímetro es: *
Answer:
La expresión algebraica que representa el perímetro del rectángulo es:
perímetro = 4x + 16
Step-by-step explanation:
La formula del perímetro de un rectángulo es:
p = 2(ancho + largo)
Entonces:
b = x + 8 primer ecuación
p = 2(x+b) segunda ecuación
x = longitud del ancho del rectángulo
b = longitud del largo del rectángulo
por tanto:
sustituyendo el valor de la primer ecuación en la segunda ecuación:
p = 2(x + (x+8))
p = 2(2x + 8)
p = 4x + 16
Usando conceptos de rectángulo, se encuentra que el perímetro está dado por:
[tex]P = 4x + 16[/tex]
El perímetro de un rectangulo de ancho a y largo l es dado por:
[tex]P = 2(l + a)[/tex]
En este problema, el ancho es de x metros, o sea, [tex]l = x[/tex], enquanto el largo 8 metros mayor que su ancho, o sea, [tex]l = x + 8[/tex]
Por eso, el perímetro es dado por:
[tex]P = 2(l + a)[/tex]
[tex]P = 2(x + x + 8)[/tex]
[tex]P = 2(2x + 8)[/tex]
[tex]P = 4x + 16[/tex]
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I was at the store, and saw two sizes of avocados being sold. The regular size sold for $0.84 each. For what prices would the larger avocado be a better deal?
Answer:
The bigger avocado will be a better deal if the ratio of the sizes of the bigger one to the smaller one is less than the ratio of the prices of the bigger one to the smaller one.
Step-by-step explanation:
Given that two sizea of avocados are being sold, since the regular size is being sold for $0.84 each, let the price for the bigger avocado be $x.
Then note the following:
1. How bigger than the smaller avocado is the bigger one?
This would determine if the price for the bigger one is a bargain, or a mistake.
If for instance, the bigger avocado is double the size of the smaller one, then for any price, $x less that $1.68 (twice of $0.84), it is a bargain.
The bigger avocado will be a better deal if the ratio of the sizes bigger one to the smaller one is less than the ratio of the prices of the bigger one to the smaller one.
Answer:
The better deal cannot be decided as we were not the weights of the 2 avocados. However, we assume they are x is the price of the larger avocado and y the weight of the larger avocado. Therefore we calculate the price per pound of the larger avocado which is x/y. The weight of the smaller avocado is called z while the price od the smaller / regular avocado is $0.84.The price per pound of the smaller / regular avocado is calculated as 0.84/z. Therefore x/y<0.84/z will make buying the longer avocado a better deal. Also, x/y>0.84/z will make buying the smaller/ regular avocado a better deal.
Step-by-step explanation:
The better deal cannot be decided as we were not the weights of the 2 avocados. However, we assume they are x is the price of the larger avocado and y the weight of the larger avocado. Therefore we calculate the price per pound of the larger avocado which is x/y. The weight of the smaller avocado is called z while the price od the smaller / regular avocado is $0.84.The price per pound of the smaller / regular avocado is calculated as 0.84/z. Therefore x/y<0.84/z will make buying the longer avocado a better deal. Also, x/y>0.84/z will make buying the smaller/ regular avocado a better deal.
What is x, if the volume of the cylinder is 768 pi cm3? Do not use units or commas in your answer.
Answer:
48
Step-by-step explanation:
We have that the volume of a cylinder is given by:
V = pi * (r ^ 2) * h
In this case we know the diameter, we know that the radius is half the diameter like this:
r = d / 2
r = 8/2
r = 4
Now we know that the V equals 768 pi
we replace and we have:
768 * pi = pi * (4 ^ 2) * h
768 = 16 * h
h = 768/16
h = 48
Therefore the value of x would be 48 cm
The length of the second side of a triangle is 2 inches less than the length of the first side.The length of the third side is 12 inches more than the length of the first side.the perimeter of the triangle is 73 inches.Find the length of each side of the triangle.
Answer:
The lenght of the tree sides of the triangle are:
first side: 21 inches
second side: 19 inches
third side: 33 inches
Step-by-step explanation:
a + b + c = 73
b = a - 2
c = a + 12
a = leght of the first side of the triangle
b = lenght of the second side of the triangle
c = lenght of the third side of the triangle
then:
a + (a-2) + (a+12) = 73
3a - 2 + 12 = 73
3a + 10 = 73
3a = 73 - 10
3a = 63
a = 63/3
a = 21 inches
b = a - 2
b = 21 - 2
b = 19 inches
c = a + 12
c = 21 + 12
c = 33 inches
Check:
21 + 19 + 33 = 73
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The length of the sides of the triangle are:
first side: 21 inchessecond side: 19 inchesthird side: 33 inchesWhat is Algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values. In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
let the sides of triangles be x, y, z.
As, perimeter of the triangle is 73 inches.
x+ y+ z= 73................(1)
and, length of the second side of a triangle is 2 inches less than the length of the first side.
y= x- 2
and, length of the third side is 12 inches more than the length of the first side.
z= x + 12
Substitute the values of y and z in equation (1)
x+ x-2 + x+ 12= 73
3x + 10 =73
3x= 63
x= 21
Then, First side= 21 inch
second side = 21 - 2 = 19 inch
third side= 21+ 12 = 33 inch
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A 90% confidence interval for p, the proportion of all registered voters who favored a mileage increase, was found to be (0.40, 0.70). Does the interval support that a majority of voters favored a mileage increase? Explain. .
A. Yes; 50% is within the bounds of the interval
B. Yes; the lower bound is above 50%
C. No, the lower bound is below 50%
D. No: 50% is not within the bounds of the interval
Answer:
A is the correct answer
Yes, 50% is within the bounds of the interval
Step-by-step explanation:
Here, we want to know if the interval support that a majority of the voters favored the mileage increase.
Our correct selected answer is yes.
To be able to select that out of all the options, we must look at the interval of the proportion of the voters that support the mileage. The proportion is noticeable from the question and we can see that within the given interval, we have 50% of the proportion lying within it.
Since we have 50% lying within our interval, then we can confidently confirm at 90% confidence interval for p that the interval support that a majority of voters favored a mileage increase