Answer:
? = 35
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan ? = opp /adj
tan ? = 33/48
Take the inverse tan of each side
tan ^ -1 ( tan ? ) = tan ^ -1 ( 33/48)
? =34.50852299
? = 35
3. In the diagram, PRST and PQWV are rectangles. Q, V
and U are midpoints of PR, PU and PT respectively.
Find the area of the shaded region.
======================================================
Work Shown:
A = area of trapezoid RSTU
A = height*(base1+base2)/2
A = ST*(UT+RS)/2
A = 14*(5+10)/2
A = 105 square cm
-----------------------
B = area of rectangle PQWV
B = length*width
B = WV*PV
B = 7*2.5
B = 17.5 square cm
If you're curious how I got PV = 2.5, you basically cut PT = 10 in half twice. So you go from 10 to 5, then from 5 to 2.5; which works because we have a bunch of midpoints.
-----------------------
C = total shaded area
C = A + B
C = 105 + 17.5
C = 122.5
If a and b are rational numbers and 5 +2 root 3/7+4 root3=a-b root 3;then a and b=
Answer:
[tex]\bold{a=5\,,\quad b=-4\frac27}[/tex]
Step-by-step explanation:
[tex]5+\frac{2\sqrt3}7+4\sqrt3=5+\frac27\sqrt3+4\sqrt3=5+4\frac27\sqrt3=5-(-4\frac27)\sqrt3[/tex]
Which phrase matches the expression 2v? A. v divided by 2 B. 2 more than v C. 2 decreased by v D. twice v
Answer:
D. twice v
Step-by-step explanation:
2v
This is 2 times v or twice v
WILL MARK BRAINLIEST!!! 40 POINTS!! ACTUAL ANSWERS, PLZZZ
Answer:
Step-by-step explanation:
PART A: 2x^5 + 3x^2-3
It is a fifth degree polynomial because, the highest degree is 5 and it is in the standard form since, the polynomial is written in descending order i.e, from highest degree to the least
part B:
Closure property is applicable to the subtraction of polynomials.
for example 2x^4+2x^2-5 is a polynomial and 2x^3+2x+2 is also a polynomial.
if we subtract these two polynomials, the outcome
2x^4-2x^3+2x^2-2x-7 is also a polynomial
Step-by-step explanation:
Part AThe fifth degree polynomial
x^5 + x^4 +3x²+4x+9
the three terms 3x², 4x and 9 are forming a second degree polynomial written in standard form
since it has this form : ax²+bx+c
a=3b=4c=9Part BThe closure property for real numbers means that the sum oe the substraction of two real numbers
The substraction of two polynomials is a polynom using the closure property
The nature remains the sameHere is an example :
3x²+5x+8 and x²+x+1calculate the substraction
3x²+5x+8-(x²+x+1)3x²+5x+8-x²-x-12x²+4x+7The result is a polynomial
how to do this question plz
Answer:
Step-by-step explanation:
9-5=4
8*4*10=320
5*10*3=150
320+150=470
470 cm³
If tan(theta+alpha)/tan(theta+bita) =a/b then show that a+b/a-b sin²(alpha-bita)=sin²(theta+alpha)-sin²(theta+bita)
Answer:
son
Step-by-step explanation:
son-sin
SHOW ME HOW TO SOLVE THIS PLSS>>> The price of a tennis racquet is inversely proportional to its weight. If a 20 oz. racquet cost $30.00, what would a 25 oz. racquet cost?
Answer:
$24
Step-by-step explanation:
Inversely proportional means that the two variables (price and weight in this case) will always have the same product. Therefore, we can write the following equation:
25 * x = 20 * 30 (where x is the price of a 25 oz. racquet)
25x = 600
x = $24
Find the value of sin(θ) for an angle theta in standard position with a terminal ray that passes through the point (4,-3)
Answer:
[tex]\dfrac{-3}{5}[/tex]
Step-by-step explanation:
It is given that a terminal ray that passes through the point (4,-3).
x = 4
y = -3
Using Pythagoras theorem, the value of hypotenuse is
[tex]r=\sqrt{x^2+y^2}[/tex]
[tex]r=\sqrt{(-3)^2+(4)^2}[/tex]
[tex]r=\sqrt{9+16}[/tex]
[tex]r=\sqrt{25}[/tex]
[tex]r=5[/tex]
We, know that
[tex]\sin \theta = \dfrac{y}{r}[/tex]
[tex]\sin \theta = \dfrac{-3}{5}[/tex]
Therefore, the value of [tex]\sin \theta[/tex] is [tex]\dfrac{-3}{5}[/tex].
Answer:
Step-by-step explanation:
25 POINTS + BRAINLIEST !!!! A fruit bowl contains apples and bananas in the ration 4 : 5. Two apples are removed changing the ratio to 2 : 3. Work out the total number of fruit that remain in the bowl.
Answer:
Total number of fruits remaining = 25
Step-by-step explanation:
Let the number of
apples = 4x
bananas = 5x
Therefore
4x-2 / 5x = 2 / 3
Solve for x, cross multiply
3(4x-2) = 2(5x)
12x - 6 = 10 x
2x = 6
x = 3
Apples = 4*3 = 12
Bananas = 5*3 = 15
Apples remaining = 12-2 = 10
Total number of fruits remaining = 10+15 = 25
Answer:
[tex]\boxed{25 \ fruits}[/tex]
Step-by-step explanation:
Let apples be 4x and Bananas be 5x
So, the given condition is:
[tex]\frac{4x-2}{5x} = \frac{2}{3}[/tex]
Cross Multiplying
5x*2 = 3(4x-2)
10x = 12x - 6
Adding 6 to both sides
10x+6 = 12x
12x - 10x = 6
2x = 6
x = 3
Now, Fruits remaining in the bowl are:
=> 4x-2 + 5x
=> 12 - 2 + 15
=> 10+15
=> 25
Angle measures and segment lengths. Two tangents. PLEASE HELP ASAP! LIKE IN 2 MINS PLZ!!! :)
Answer:
x=60 degrees
Step-by-step explanation:
Formula for angle at x=1/2(240-120)
x=60
The average student loan debt is reported to be $25,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student' claim at a 5% significance level?
Answer:
We reject the students claim because the P-value is less than the significance level.
Step-by-step explanation:
First of all let's define the hypothesis;
Null hypothesis;H0; μ = 25,235
Alternative hypothesis;Ha; μ > 25,235
Now, let's find the test statistic. Formula is;
t = (x' - μ)/(σ/√n)
We are given;
x' = 27,524
μ = 25,235
σ = 6000
n = 100
Thus;
t = (27524 - 25235)/(6000/√100)
t = 2289/600
t = 3.815
So from online p-value calculator as attached, using t=3.815, DF = 100-1 = 99 and significance level of 0.05, the P-value is gotten as p = 0.000237.
The p-value is less than the significance level of 0.05. Thus,we reject the students claim.
The sum of five consecutive numbers is 360. What is the smallest of these numbers? *
Answer:
70
Step-by-step explanation:
An easy way to do this is to simply take 360(the sum) and divide it by 5(the number of numbers) to get 72. Thus, 72 is the middle number and the numbers are:
72
72,72,73
70,71,72,73,74
The smallest of these numbers is 70
Hope it helps <3
Hello!
Answer:
70 is the smallest number.
Step-by-step explanation:
If the sum of 5 consecutive numbers is 360, we can solve for the smallest number algebraically:
Let 'x' represent the smallest number:
and (x + 1), (x + 2), (x + 3), and (x+4) represent the other consecutive numbers:
x + (x + 1) + (x + 2) + (x + 3) + (x+ 4) = 360
Combine like terms:
5x + 10 = 360
Subtract 10 from both sides:
5x = 350
Divide both sides by 5:
x = 70. This is the smallest of the consecutive numbers.
We can check our work:
70 + 71 + 72 + 73 + 74 = 360.
Hope this helped!
How to do this question plz answer me step by step plzz plz
In general and here, when we have an object with a constant cross section of area A, the volume V = A L, where L is the length.
L = V / A = 330 / 55 = 6 cm
Answer: 6 cm
A paper cup is dropped and its landing position is recorded. The cup can land on the side, on the open end, or on the closed end. The results of 20 trials are shown in the table below: Based on the table, which of the following best compares the experimental probability of the cup landing on its open end with the experimental probability of the cup landing on its closed end?
The probabilities are equal.
The probability of landing on the open end is greater.
The probability of landing on the closed end is greater.
No conclusion can be made.
Answer:
"The probabilities are equal."
Step-by-step explanation:
Since the amount of times the paper cup landed on its open, and closed end is equal, then the answer is "The probabilities are equal."
Answer: the probability’s are equal
Step-by-step explanation:
(25 points) The range of [tex]y=\frac{1}{x-10}[/tex] is All Real Numbers. TRUE or FALSE, and why?
Answer:
True
Step-by-step explanation:
Real Numbers are just numbers like:
1 12.38 −0.8625 34 π (pi) 198
In fact:
Nearly any number you can think of is a Real Number
Real Numbers include:
yes Whole Numbers (like 0, 1, 2, 3, 4, etc)
yes Rational Numbers (like 3/4, 0.125, 0.333..., 1.1, etc )
yes Irrational Numbers (like π, √2, etc )
Real Numbers can also be positive, negative or zero.
So ... what is NOT a Real Number?
not Imaginary Numbers like √−1 (the square root of minus 1)
are not Real Numbers
not Infinity is not a Real Number
Mathematicians also play with some special numbers that aren't Real Numbers.
Real numbers can be represented on a number line.
2. Ravi purchased an old house for Rs. 76.5000 and
spent Rs. 115000 on its. Then he sold it at a
gain of 5%. How many
much did he get.
Answer:
Rs. 924000.
Step-by-step explanation:
Cost of house = 765000
Additional money spent on it = 115000
Total cost incurred by Ravi = 765000 + 115000 = 880000
Gain = 5% of total cost
gain in Rs = 5/100 * 880000 = Rs. 44000
Total selling price of house = total cost incurred + profit = 880000+ 44000
Total selling price of house = Rs. 924000
Thus, Ravi got Rs. 924000.
A circle has a radius of sqrt 45 units and is centered at -2.4, -4.8 write the equation of the circle
Answer:
(x+2.4)^2+(y+4.8)^2=2025
If you'd like additional help with math or another subject, check out growthinyouth.org!
Step-by-step explanation:
what happens to 5/x + 5 as x decreases from a large positive number to a small positive number? does it increase, decrease, or stay the same?
Answer:
Increases
Step-by-step explanation:
It increases because, the greater the value of x the smaller the fraction is. If x was 25 the fraction would be 5/25 this makes the value of the equation 5.2. Now if x was a smaller positive number like 5. Then the fraction would be 5/5 which would cause the equation to be equal to 6.
Plane A is descending toward the local airport, and plane B is ascending from the same airport. Plane A is descending at a rate of 2,500 feet per minute. Plane B is ascending at a rate of 4,000 feet per minute. If plane A is currently at an altitude of 14,000 feet and plane B is at an altitude of 1,000 feet, how long will it take them to be at the same altitude? The equation representing plane A’s descent is y = -2,500x + 14,000. The equation representing plane B’s ascent is y = 4,000x + 1,000. In both equations, y represents altitude and x represents time in minutes.
Answer: 2 minutes
Step-by-step explanation:
Given the following :
Plane A's descent :
y = -2,500x + 14,000
Plane B's Ascent :
y = 4,000x + 1,000
where y = altitude x = minute
Time to be at the same altitude :
Being at the same altitude means ;
Plane A's descent = Plane B's Ascent
-2,500x + 14,000 = 4,000x + 1,000
-2500x - 4000x = 1000 - 14000
-6500x = - 13000
x = 13000 / 6500
x = 2
x = 2minutes.
Do you know the adjustments for the graph to show the intersecting lines.
It is never possible to solve an inequality that has a number on each side. True or False?
Answer:
true
Step-by-step explanation:
because a number is always greater than, equal to, or less than another number
Answers:
3x-2y=-12
2x-3y=-12
3x+2y=12
3x+3y=-12
Answer:
3x + 2y = 12.
Step-by-step explanation:
Two conspicuous points on the graph are at (0, 6), and (4, 0).
That means the slope of the line is (6 - 0) / (0 - 4) = 6 / -4 = -3 / 2.
The intercept of the line is at (0, 6).
This means that the equation of the line is y = -3/2x + 6.
y = -3/2x + 6
Add 3/2x to both sides
3/2x + y = 6
Multiply all terms by 2
3x + 2y = 12
Hope this helps!
Please answer it now in two minutes
Answer:
[tex]2\sqrt{33}[/tex].
Step-by-step explanation:
This triangle is a 30-60-90 triangle. That means that the hypotenuse is double the length of the smaller side.
Since the smaller side measures [tex]\sqrt{33}[/tex], the hypotenuse is [tex]2\sqrt{33}[/tex].
Hope this helps!
What are the coordinates of the image of point B, after the segment has been dilated by a scale factor of 3 with a center of dilation at the origin? On a coordinate plane, line segment A B has points (negative 6, 8) and (negative 3, 3). (–9, 9) (9, –9) (–1, 1) (1, –1)
Answer: (–9, 9)
Step-by-step explanation:
if the original point (x,y) gets dilated by a scale factor 'k' with a center of dilation at the origin, then
The coordinates of the image point are (kx, ky).
Given: The coordinates of line segment A B are A(-6,8) and B(-3,3).
then , the coordinates of B after dilation by scale factor of 3 with a center of dilation at the origin,
[tex](-3,3)\to(3(-3),3(3))\\\\\Rightarrow\ (-3,3)\to(-9,9)[/tex]
Hence, the coordinates of the image of point B, after the segment has been dilated by a scale factor of 3 with a center of dilation at the origin = (–9, 9).
Answer:option A.
Step-by-step explanation: because the point B is dialated and that’s where you will find you answer and edge cumulitive exam 2020.
Can someone give me some help??
Answer:
OPtion B)
Step-by-step explanation:
Answer: Choice C)
y < (-1/5)x + 1
The boundary line is y = (-1/5)x+1 as it goes through the points shown. The boundary line is dashed or dotted, meaning that points on this boundary line are not in the solution set. So we will not have an "or equal to" as part of the inequality sign. More specifically, the inequality sign is "less than" because we shade below the boundary line. So that's how we end up with y < (-1/5)x+1.
If 3, x, y, -9 are in A.P, find the values of x and y.
Answer:
x = -1y = -5Step-by-step explanation:
The common difference (d) can be found using the first and 4th terms:
a1 = 3
a4 = a1 +d(4 -1)
-9 = 3 +3d . . . . . simplify
-3 = 1 + d . . . . . . divide by 3
-4 = d . . . . . . . . . subtract 1
Then ...
x = a1 + d = 3 -4 = -1
y = x + d = -1 -4 = -5
The values of x and y are -1 and -5, respectively.
PLEASEEEEE HELP MEEE
Answer:
4.16% is the hourly growth rate
Step-by-step explanation:
What we can do here is to first set up an exponential relationship that relates the present number of bacteria, the initial number of bacteria, the growth rate of the bacteria and the number of hours.
What we want to establish here has a resemblance with the compound interest formula in finance.
Let’s see the initial number of bacteria as the amount deposited, the present number of bacteria as the amount after some months, the growth rate as the monthly percentage while the number of hours works like the number of months.
Mathematically, what we have will be;
P = I(1 + r)^h
where P is the present bacteria number, I is the initial, r is the growth rate while h is the number of hours.
Thus, we have the following values from the question;
P = 1530
I = 1,300
r = ?
h = 4
Substituting these values, we have;
1530 = 1300(1 + r)^4
divide both sides by 1,300
1.177 = (1+r)^4
Find the fourth root of both sides
(1.177)^(1/4) = 1+ r
1.0416 = 1 + r
r = 1.0416-1
r = 0.0416
This in percentage is 4.16%
Please answer this now in two minutes
Answer:
x = 6.6
Step-by-step explanation:
Data obtained from the question include the following:
Angle X = 15°
Angle Y° = 23°
Side y = 10
Side x =..?
The value of side x can be obtained by using the sine rule as shown below:
x/Sine X = y/Sine Y
x/Sine 15 = 10/Sine 23
Cross multiply
x × Sine 23 = 10 × Sine 15
Divide both side by Sine 23
x = (10 × Sine 15) / Sine 23
x = 6.6
Therefore, the value of x is 6.6.
HELP!!! A plumber charges a fee of $25 plus $30 per hour on the job. Make a table of values for the total charge depending on the number of hours the plumber works. Determine if this can be defined by a linear or an exponential function. What is the function? Linear: t=25+30h Linear:T=30+25h Exponential:T=30(25)^h Exponential: T=25(30)^h HELP I HAVE 10 MINS LEFT
Answer:
Yes, this function can be defined by linear model.
Step-by-step explanation:
[tex]\mathrm{Total\:=\:Fixed\:Fee\:+\:Hourly\:Rate\:\times Number\:of\:hours}[/tex]
[tex]\mathrm{Linear:}\:\:T=\:$25+30h[/tex]
Best Regards!
The path of a cannon firing a cannonball can be modeled by the function h(x) = –x2 + 4x + 12, where x is time in seconds and h(x) is the height of the cannonball in feet. At what time does the cannonball reach its maximum height? seconds
Answer:
after 2 seconds
Step-by-step explanation:
Given
h(x) = - x² + 4x + 12
The ball will reach its maximum at the vertex of the parabola
Find the zeros by letting h(x) = 0, that is
- x² + 4x + 12 = 0 ← multiply through by - 1
x² - 4x - 12 = 0 ← in standard form
(x - 6)(x + 2) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 6 = 0 ⇒ x = 6
x + 2 = 0 ⇒ x = - 2
The x- coordinate of the vertex is at the midpoint of the zeros, thus
[tex]x_{vertex}[/tex] = [tex]\frac{-2+6}{2}[/tex] = [tex]\frac{4}{2}[/tex] = 2
Substitute x = 2 into h(x)
h(2) = - 2² + 4(2) + 12 = - 4 + 8 + 12 = 16
The cannonball reaches its maximum height of 16 ft after 2 seconds
Answer:
2 seconds
Step-by-step explanation:
I just did it just trust me. This isn't reated to the answer but I had spagehtti for lunch
PLEASE help me with this question!! I really need help!
Answer:
324π in²
Step-by-step explanation:
The surface area of a sphere = 4πr² ( r is the radius )
Calculate r using the volume (V) formula
V = [tex]\frac{4}{3}[/tex]πr³
Here V = 972π , thus
[tex]\frac{4}{3}[/tex]πr³ = 972π ( divide both sides by π )
[tex]\frac{4}{3}[/tex]r³ = 972 ( multiply both sides by 3 to clear the fraction )
4r³ = 2916 ( divide both sides by 4 )
r³ = 729 ( take the cube root of both sides )
r = [tex]\sqrt[3]{729}[/tex] = 9
Thus
surface area = 4π × 9² = 4π × 81 = 324π in²