1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
docker41 [41]
2 years ago
7

A student would like to estimate the height of a statue. The length of the​ statue's right arm is 51 feet. The​ student's right

arm is 2 feet long and her height is 5
1
3 feet. Use this information to estimate the height of the statue. How close is the approximate height to the​ statue's actual height of 135 ​feet, 3 inches from heel to top of​ head?


I got a.
13 feet

b. What is the difference between the appoximate height of the statue and its actual​ height?
Mathematics
1 answer:
Vinvika [58]2 years ago
8 0

Answer:

FEET

Step-by-step explanation:

You might be interested in
A snowstorm lasted for three days Dearing the storm 7 inches of snow fell on the first day 5 inches of snow fell on the second d
yanalaym [24]

Answer:

20 inches or 20/1

Step-by-step explanation:

8 0
3 years ago
What is the measure of the angle labeled (5x+42)° ?
barxatty [35]

We see two parallel lines crossed by a transversal.

The two labelled angles are alternate interior angles, hence they are equal.

The equality allows us to equate the two expressions and hence solve for x.

8x-3=5x+42

transpose terms

8x-5x=42+3

solve for x

3x=45

so x=45/3=15.

This means 5x+42=5*15+42=75+42=117 degrees.

4 0
3 years ago
Read 2 more answers
Write an expression equivalent to -12/27 (it is a fraction)
rusak2 [61]
-4/9 is simplified of -12/27
6 0
3 years ago
Many elementary school students in a school district currently have ear infections. A random sample of children in two different
Marta_Voda [28]

Answer:

Step-by-step explanation:

The summary of the given data includes;

sample size for the first school n_1 = 42

sample size for the second school n_2  = 34

so 16 out of 42 i.e x_1 = 16 and 18 out of 34 i.e x_2 = 18 have ear infection.

the proportion of students with ear infection Is as follows:

\hat p_1 = \dfrac{16}{42} = 0.38095

\hat p_2 = \dfrac{18}{34}  =  0.5294

Since this is a two tailed test , the null and the alternative hypothesis can be computed as :

H_0 :p_1 -p_2 = 0 \\ \\ H_1 : p_1 - p_2 \neq 0

level of significance ∝ = 0.05,

Using the table of standard normal distribution, the value of z that corresponds to the two-tailed probability 0.05 is 1.96. Thus, we will reject the null hypothesis if the value of the test statistics is less than -1.96 or more than 1.96.

The test statistics for the difference in proportion can be achieved by using a pooled sample proportion.

\bar p = \dfrac{x_1 +x_2}{n_1 +n_2}

\bar p = \dfrac{16 +18}{42 +34}

\bar p = \dfrac{34}{76}

\bar p = 0.447368

\bar p + \bar  q = 1 \\ \\ \bar q = 1 -\bar  p \\  \\\bar q = 1 - 0.447368 \\ \\\bar q = 0.552632

The pooled standard error can be computed by using the formula:

S.E = \sqrt{ \dfrac{ \bar p \bar q}{ n_1} +  \dfrac{\bar p \bar p}{n_2} }

S.E = \sqrt{ \dfrac{  0.447368 *  0.552632}{ 42} +  \dfrac{ 0.447368 *  0.447368}{34} }

S.E = \sqrt{ \dfrac{  0.2472298726}{ 42} +  \dfrac{ 0.2001381274}{34} }

S.E = \sqrt{ 0.01177284105}

S.E = 0.1085

The test statistics is ;

z = \dfrac{\hat p_1 - \hat p_2}{S.E}

z = \dfrac{0.38095- 0.5294}{0.1085}

z = \dfrac{-0.14845}{0.1085}

z = - 1.368

Decision Rule: Since the test statistics is greater than the rejection region - 1.96 , we fail to reject the null hypothesis.

Conclusion: There is insufficient evidence to support the claim that a difference exists between the proportions of students who have ear infections at the two schools

5 0
3 years ago
What is 5000 rounded to the nearest hundred
Vlada [557]

The next larger hundred is  5,100 .
The next smaller hundred is  4,900 .
5,000  is exactly midway between  4,900  and  5,100.
Neither of them is closer to  5,000  than the other one is.
So  5,000  is already rounded to the nearest hundred.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A point has coordinates a-(1,4). Find the coordinates of its image if its translated by (x + 2, y - 1)
    10·2 answers
  • Which shows all the names that apply to the figure?
    9·1 answer
  • What expression is equivalent to -3(x+10)
    9·1 answer
  • Tarek has 72 feet of plastic fence to make a flower bed. The garden shape can either be circular or square. If he uses all of th
    6·1 answer
  • George ran 1000 yards in gym class. how many kilometers did he run?
    15·1 answer
  • How do I solve this problem
    5·1 answer
  • Tell which variable you would choose to eliminate when solving the system by elimination. Then solve the system by elimination.
    6·1 answer
  • Help plz my teacher didn't explain how i'm supposed to solve these
    13·1 answer
  • PLEASE HELP!! WILL GIVE BRAINLY!
    13·1 answer
  • !!! PLEASE HELP FAST !!!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!