Similar Triangles

A cell phone tower in a field casts a shadow of 100ft. At the same time, a 4 ft 6 in post near the tower casts a shadow of 3 ft 4 in. Find the height of the tower in feet. (Hint: make a drawing)

a. 145 ft
b. 76 ft
c. 100 ft
d. 135 ft

Please select the best answer from the choices provided

Answers

Answer 1

Answer:

D. 135 ft

Step-by-step explanation:

I calculated it logically


Related Questions

3(x+3) [tex]\geq[/tex] 4(x-4)

Answers

Answer:

12x2-12x-144 thats the answer

Step-by-step explanation:

solve the inequality

Answers

Answer:

x<3

Step-by-step explanation:

4x-7<5

4x<5+7

4x<12

x<3

How many times greater is the value of the 9 in 94,316 than the value of the 9 in 69,147

Answers

Answer:

Step-by-step explanation

90,000 is 20,853 greater than 69,147

A certain academic program boasts that 87% of their graduates find full-time employment in their field within the first year of graduation. The academic director is concerned that market factors may have adversely affected the full-time placement rate and decides to perform a Hypothesis Test to see if her concern is warranted. The hypothesis test is performed at a 5% significance level and the resulting p-value is 0.07. Assume that all conditions for testing have been met and choose the statement that contains the correct conclusion.

a. there is not sufficient sample evidence to conclude that the full-time placement rate is now less than 87% because the p-value is greater than 0.05.
b. there is sufficient sample evidence to conclude that the full-time placement rate is now less than 87% because the p-value is greater than 0.05.
c. there is sufficient sample evidence to conclude that the full-time placement rate is 87% because the p-value is greater than 0.05.
c. there is not sufficient sample evidence to conclude that the full-time placement rate is 87% because the p-value is greater than 0.05.

Answers

Answer:

Option A, there is not sufficient sample evidence to conclude that the full-time placement rate is now less than 87% because the p-value is greater than 0.05.

Step-by-step explanation:

Here the Null hypothesis would be

H0: 87% of the graduates find full-time employment in their field within the first year of graduation

H1: Less than 87% of the graduates find full-time employment in their field within the first year of graduation

Here the p values is 0.07.

Since the p value is greater than 0.05, there are not enough evidences to reject the hull hypothesis.

Hence, option A is correct

Since the p-value is greater than the significance level, the correct option is:

a. there is not sufficient sample evidence to conclude that the full-time placement rate is now less than 87% because the p-value is greater than 0.05.

At the null hypothesis, it is tested if the proportion is still of 0.87, that is:

[tex]H_0: p = 0.87[/tex]

At the alternative hypothesis, it is tested if it has decreased, that is:

[tex]H_1: p < 0.87[/tex]

Since the p-value is greater than the significance level, we do not reject the null hypothesis, and hence, the correct option is A.

A similar problem is given at https://brainly.com/question/25831511

I WILL GIVE BRAINLIEST IF IT'S CORRECT AND THE BEST ANSWER

Write a problem that can be answered using the line plot. ​

Answers

Answer:

What is the median amount of salt left

Step-by-step explanation:

exactly 12 times as many females as males attended which learning activity?? mathh

Answers

the answer is writing since 18 times 12 is 216

20 POINTS HELP!!
Find the value of x and y

Answers

Answer:

x=64 degrees

Step-by-step explanation:

PLS HELP ITS URGENT!!


The circumference of the ball is 9.4 inches. What is the approximate surface area and volume of the ball? Round your answers to the nearest unit.

The surface area of the ball is approximately

square Inches.

The volume of the ball is approximately

cubic Inches.

Answers

Answer:

SA= 28 in^2

V= 14 in^3

Step-by-step explanation:

circumference= 2πr

9.4 = 2πr

r = 1.496

surface area of a ball = [tex]4\pi r^{2}[/tex]

= [tex]4\pi (1.496)^{2}[/tex]

=28 in^2

volume of a ball= [tex]\frac{4}{3} \pi r^{3}[/tex]

= [tex]\frac{4}{3} \pi (1.496)^{3}[/tex]

=14 in^3

A function that has f(-x)=-f(x) is known as what type of function? *

Answers

Answer: Odd function

An example would be the function f(x) = x^3

Note how f(-x) = (-x)^3 = -x^3 = -f(x)

In contrast, an even function is any function where f(-x) = f(x) for all x in the domain.

Answer:

Odd

Step-by-step explanation:

The polynomial f(x) is written in factored form:
f(x) = (x - 6)(x + 5)(x - 9)
What are the zeros of the polynomial function?
O x = 6, x = -5, X = 9
O x = 6, X = 5, X = 9
Ox= -6, X = 5, x = -9
Ox= -6, X = 6, X = -5, x= 5, X = -9, x = 9
15points please help

Answers

Answer:The zeros are 6, -5, 9

Step-by-step explanation:

The zeros of the polynomial function are x = 6, x = -5, and x = 9. The correct option is A.

What are polynomials?

In mathematics, a polynomial is an expression that solely uses the operations of multiplication, addition, subtraction, and non-negative integer exponentiation of variables. It is made up of coefficients and indeterminates.

The zeros of the polynomial function are the values of x that make f(x) equal to zero.

The polynomial f(x) is written in factored form as:

f(x) = (x - 6)(x + 5)(x - 9)

The zeros of the polynomial are the values of x that make any of the factors equal to zero. Therefore, the zeros are:

x - 6 = 0, which gives x = 6

x + 5 = 0, which gives x = -5

x - 9 = 0, which gives x = 9

Thus, the zeros of the polynomial function are x = 6, x = -5, and x = 9.

To know more about polynomials follow

https://brainly.com/question/30385780

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Plz help me well mark brainliest if correct!!....

Answers

Answer:

B) Fifth Grade Boys

Step-by-step explanation:

The far right green line represents the fifth grade boys, and you can see that this lines up right in the middle of 50 and 60.

Anne has 198. apples and buys 285
apples and 693 green apples.
How much does anne
have?


Answers

Answer:

1176 apples

Step-by-step explanation:

198 + 285 + 693 = 1176

Step-by-step explanation:

your answer will be 1,176 apples. Just add them up :)

i am very stuck on this
The measure of an angle is twenty-three times the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:

∡'s are 172.5° and 7.5°

Step-by-step explanation:

x = 23(180-x)

x = 4140 - 23x

add 23x to each side

24x = 4140

x = 4140/24

x = 172.5

So, supplementary angles is an angle pair that adds up to 180 degrees.

If one of the angles is 23 times larger than the other angle, then the other angle would be 1 times larger, due to the reflexive prop.

So combined, the angle pair is 24 times larger than the small angle. And since we know that the supplementary angle is 180, it's something that easy math can solve.

For the small angle:

180 / 24 --> 7.5 degrees.

Now with the big angle that 23 times that:

7.5 * 23 -->  172.5 degrees.

A golden rectangle has a length of 5 cm. Find the area of the rectangle to the nearest square centimeter.

Answers

Answer: is it 25? i am bad at math but i am guessign

Step-by-step explanation:

Blancos y mestizos se ubican en​

Answers

Answer:

Se ubican en Chile

A store raises its prices on granola bars by 15%. The original cost of the granola bars is $3.50. What is the new cost of granola bars?

Answers

Answer:

$4.02

Step-by-step explanation:

Who can do this I confused except for number 1

Answers

What grade is this, then I can see

3.
What is the rate of change of this graph?
825
750
675
Account Balance (dollars)
600
525
450
375
300
0
1
2
3
4
5
6
7
00
9
10
Time (months)

Answers

9514 1404 393

Answer:

  -25 dollars per month

Step-by-step explanation:

It is convenient to compute the rate of change using points where the graph crosses grid intersections. A couple of these are ...

  (months, dollars) = (1, 675)  and  (4, 600)

Using the slope formula, we have ...

  m = (y2 -y1)/(x2 -x1)

  m = (600 -675)/(4 -1) = -75/3 = -25 . . . . . dollars/month

2) r = 4/4 cm
Calculate the diameter of the circle

Answers

Answer:

radius is 4/4 cm meaning its 1 cm, and since diameter is twice the radius its 2cm.

Step-by-step explanation:

Diameter is twice the radius

Recent research commissioned by Vodafone suggests that older workers are the happiest employees (BBC News, July 21, 2008). The report documents that 70% of older workers in England feel fulfilled, compared with just 50% of younger workers. A demographer believes that an identical pattern does not exist in Asia. A survey of 120 older workers in Asia finds that 75 feel fulfilled. A similar survey finds that 58% of 210 younger workers feel fulfilled.
At a 5% level of significance, test if older workers in Asia feel less fulfilled than their British counterparts.
a-1. Select the null and the alternative hypotheses.
H0: p ≥ 0.70; HA: p < 0.70
H0: p = 0.70; HA: p ≠ 0.70
H0: p ≤ 0.70; HA: p > 0.70
a-2. Calculate the sample proportion. (Round your answer to 3 decimal places.)
Sample proportion
a-3. Calculate the value of test statistic. (Negative value should be indicated by a minus sign. Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.)
Test statistic
a-4. Calculate the p-value of the test statistic.(Round your intermediate calculations to 4 decimal places. Round "z" value to 2 decimal places and final answer to 4 decimal places.)
p-value
a-5. What is the conclusion?
Older workers in Asia feel less fulfilled
Older workers in Asia do not feel less fulfilled
At a 5% level of significance, test if younger workers in Asia feel more fulfilled than their British counterparts.
b-1. Select the null and the alternative hypotheses.
H0: p = 0.50; HA: p ≠ 0.50
H0: p ≥ 0.50; HA: p < 0.50
H0: p ≤ 0.50; HA: p > 0.50
b-2. Calculate the sample proportion. (Round your answer to 2 decimal places.)
Sample proportion
b-3. Calculate the value of test statistic. (Round your intermediate calculations to 4 decimal places and final answer to 2 decimal places.)
Test statistic
b-4. Calculate the p-value of the test statistic.(Round your intermediate calculations to 4 decimal places. Round "z" value to 2 decimal places and final answer to 4 decimal places.)
p-value
b-5. What is the conclusion?
Younger workers in Asia feel more fulfilled
Younger workers in Asia do not feel more fulfilled

Answers

Answer:

H0: p ≥ 0.70; HA: p < 0.70

Sample proportion = 0.625

Test statistic = -1.79

Pvalue = 0.0367

Older workers in Asia feel less fulfilled

B.)

H0: p ≤ 0.50; HA: p > 0.50

0.58

2.35

0.0094

younger workers in Asia feel more fulfilled

Step-by-step explanation:

1.)

H0: p ≥ 0.70;

HA: p < 0.70

The test statistic :

(Phat - p) /sqrt(p(1-p)/n)

Phat = x / n = 75/120 = 0.625

1 - p = 1 - 0.7 = 0.3

(0.625-0.70) / sqrt(0.7*0.3/120)

-0.075 / 0.0418330

= - 1.79

Pvalue FROM Zscore calculator :

Pvalue = 0.0367

α = 5% = 0.05

Pvalue < α ; Reject then Null and conclude older workers in Asia feel less fulfilled than their British counterparts.

B.)

H0: p ≤ 0.50; HA: p > 0.50

Sample proportion, phat = 58% = 0.58

The test statistic :

(Phat - p) /sqrt(p(1-p)/n)

(0.58 - 0.50) / sqrt(0.58*0.42)/210)

0.08 / 0.0340587

Test statistic = 2.35

Pvalue FROM Zscore calculator :

Pvalue = 0.0094

α = 5% = 0.05

Pvalue < α ; Reject then Null and conclude younger workers in Asia feel more fulfilled than their British counterparts

An elementary bake sale is selling brownies and cookies. Their goal is to make $500
dollars. Each brownies is sold for $2 and each cookie is sold for $1.50. Write an
equation to represent the number of brownies, b, and cookies, c, that must be sold to
make $500.
Answer:
Submit Answer

Answers

Answer:

2b + 1.5c = 500

Step-by-step explanation:

Cost per brownie = $2

Cost per cookie = $1.50

Number of brownie = b

Number of cookie = c

Angle R and 92 are supplementary angles. What equation can you use to solve for R?
R+180=92
R+90=92
R+92=180
R+92=90
180+92=R

Answers

Answer:

Your answer is R+92=180

Step-by-step explanation:

Supplementary means angles that add up to 180, so R+92=180 has to be correct.

What's the output of a system modeled by the function ƒ(x) = x5 – x4 + 9 at x = 2?
Please Help

A)

24

B)

16

C)

30

D)

25

Answers

Answer:

a

Step-by-step explanation:

please make me Brianlist please

simplify 12 : 3 3/10 : 5.5​

Answers

12:3 3/10 :5.5 is the answer

Consider the equation 5 +x=n.
What must be true about any value of x if n is a negative number?
Explain your answer.
Provide an example that would satisfy this condition.
Explain how you know your equation is correct.

Answers

Answer:

It's C.

Step-by-step explanation:

Any value of x must have a bigger negative number than 5. In this case, formally you say that all x values must be LESS than 5 only.

Assume: Triangle CDE is a right triangle and Angle D is a right angle. What is the length of the missing side? A) 26 . B) 25 . C) 24 . D) 23 .​

Answers

Answer:

Length of base DE = 24 units

Step-by-step explanation:

Given:

In given triangle, right angle at D

SO,

Perpendicular of given triangle = 32 unit

Hypotenuse of given triangle = 40 unit

Find:

Length of base DE

Computation:

Using Pythagoras theorem

Base = √Hypotenuse² - Perpendicular²

Length of base DE = √Hypotenuse of given triangle² - Perpendicular of given triangle²

Length of base DE = √40² - 32²

Length of base DE = √1,600 - 1,024

Length of base DE = √576

Length of base DE = 24 units

HELP!! ASAP!! WILL give BRAINLY! NO LINKS!! Will report them!

Answers

Answer:

Choose ( A)

A. y =|x/2| – 5

How many times longer I s on be mile that one foot

Answers

Answer:

5,280 times

hope this helps

have a good day :)

Step-by-step explanation:

A nutritionist suspected that her company's clients had below average cholesterol. They obtained a random sample of 8 clients of the same age and gender. These clients had a mean cholesterol level of xˉ=4.28 mmol/L (millimoles per liter).
To see how likely a sample like this was to happen by random chance alone, the nutritionist performed a simulation. They simulated 60 samples of n=8 cholesterol levels from a normal population with a mean of 4.6 mmol/L and a standard deviation of 0.5 mmol/L (these are generally accepted values for people with the same age and gender of those in the sample). They recorded the mean of the cholesterol levels in each sample. Here are the sample means from their 60 samples:

They want to test H0:μ=4.6 mmol/L vs. Ha:μ<4.6 mmol/L where μ is the mean cholesterol level for all clients like those sampled.

Based on these simulated results, what is the approximate p-value of the test?
Note: The sample result was xˉ=4.28 mmol/L.

Answers

Answer:

p-value ≈ 0.05

Step-by-step explanation:

The original price of sunglasses is $25. The sale price is 20% off the original price. How much money will be saved (what is the discount)?​

Answers

Step-by-step explanation:

5  $

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Help !!!!!!!!!!!!!!!!!!!!! Find the area of the shape shown below. A new car is purchased and a $30,000 loan is taken. The loan is for 7 years (84 months) andthe interest rate is 2.9% compounded monthly. What is the monthly payment? What is 8.05 10-5 in standard notation? HELP!!!!!! Will mark brainiest who is the author of the play The Alchemist? [tex]\frac{3}{4}\alpha-1\frac{1}{5}=2\frac{3}{4}[/tex] 12,000= 120 tens true or false Read the excerpt below:As of now, if a child is brought into the country illegally, there is no method for becoming adocumented resident. Congress should consider giving undocumented students an opportunityto gain legal status by passing the DREAM act, a bill that would provide certain illegal studentswho graduate from US high schools, who are of good moral character, and who arrived in theU.S. as minors, the opportunity to earn permanent residency. It was introduced in the United States Senate, and the United States House of Representatives on March 26, 2009. Passingthe DREAM Act would encourage undocumented students to achieve in school and becomehelpful members of our society. This opportunity for education would allow them to obtaingood jobs and salaries and thus get off the welfare system and stay out of crime.The purpose of this passage is ...*To explain how the DREAM act impacts undocumented children in the United States.To explain how the DREAM act was introduced in Congress.To argue that the DREAM act would ultimately help undocumented students become productive members of society.To argue that the DREAM act would solve the immigration issues our country experiences. Why is the number 4 not a real number? (In case you couldn't tell, it says the square root of negative 4)Select one:A. It contains a negative sign.B. It contains a square root.C. It contains the square root of a negative number.D. It is a real number. I think no one will answer by question correctly but if anyone does i would appreciate it so much that I'd give you 5 stars, a thanks, and brainliest.My question: Why might you add marks and numbers to a thermometer? Where would you put them? Flip both coins 50 times and record your data in a table like the one below. Select all the statements that are true in all cases. The expressions x + x and x2 are equal. The expressions x + x and 2x are equal. The expressions (x) (x) and x2 are equal. The expressions (x) (x) and 2x are equal. Qu piensan las muchas mujeres sobre los estndares de belleza actueles?No piensan en este temaPiensan que son muy altosQue solo sirven para satisfacer el gusto de los hombresQue son muy fciles de alcanzar 10 points each answer and brainliest (picture shown)The diagram below shows four positions of Earth around the sun. In which of these positions will the Earth move the fastest?Position APosition BPosition CPosition D What was the German air force called?A. The RAF (Royal Air Force)B. The Panzer divisionC. The ReichstagD. The Luftwaffe Which numbers line correctly shows 4.5 - 2.5.? HELP FAST!!! find surface area and 136.224236248 oops I forgot -.-||| Answer correctly for brainlist An economic system that mostly allows businesses to operate freely butrequires them to follow some government regulations is a:A. market economyB. traditional economy.C. mixed economy.D. command economy. Are you willing to sacrifice your individual freedoms for the idea of national security?? help please Which answer best describes MLA format for essays?A. 1" margins, class information, doublespaced, 12 point fontB. 12 pt Times New Roman, 1" margins, doublespaced, running header, class information, title centered, doublespaced, 1/2" tabsC. 12 pt Times New Roman, 1" margins, doublespacedD. 1-1/2" margins, running header, class information, title centered, 1" tabs, double spaced, except inbetween paragraphs