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rusak2 [61]
4 years ago
12

an 18 ft tree casts a 15ft long shadow. What angle is formed? A.) 30 degrees B.)40 degrees C.) 50 degrees D.) 60 degrees

Mathematics
1 answer:
loris [4]4 years ago
8 0

Answer:

Option C 50\°

Step-by-step explanation:

Let

A-------> the angle

see the attached figure to better understand the problem

we know that

In the right triangle

tan(A)=\frac{18}{15}

A=arctan(18/15)=50\°

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An olympic hurdler accelerates at a rate of 15.5 m/s2 . what is the rate in miles/min2 ? 1. 6.89 miles/min2 2. 31.8 miles/min2 3
Tom [10]
For this case we have to take into account the following conversions:
 1 mile = 1609.34 meters

1 minute = 60 seconds
 Let's first transform the expression to miles per seconds squared:
 (15.5) * (1 / 1609.34) = 0.009631277 mi / s ^ 2

 Then, we transform the result to miles per minute squared.
 We have then:
 (0.009631277) * (60) ^ 2 = 34.7 mi / min ^ 2

 Answer:
 
the rate in miles/min^2 is:
 
34.7 mi / min ^ 2
3 0
3 years ago
(0,5) (3,4) into an equation
kati45 [8]

Answer:

5-4 over/fraction of -3

Step-by-step explanation:

k that should be right just think of it as you're finding the slope of a line on a graph k

8 0
3 years ago
What is the distance between the points ( − 4 , 5 ) and ( 8 , 9 ) ?
anygoal [31]

Answer:

Sqrt of 160

Step-by-step explanation:

The distance, try to think it as a triangle, so you will find out that the distance equals the sqrt of(8-(-4))^2 + (9-5)^2, so it will be sqrt of(144+16) which is sqrt of 160, so the answer will be sqrt of 160

7 0
3 years ago
MULTIPLE CHOICE:
babunello [35]
Ingles C would be diagonal so your best answer be D hope this helped !!!!!!
5 0
3 years ago
a researcher is conducting a study on local businesses. in order to create her sample, she uses the yellowpages and a dice. she
katrin2010 [14]

Her sample space is also the list of local businesses.

Sampling is a technique used in statistics when researchers choose a representative subset of a larger population and utilize that subset to carry out a study. Probability sampling and non-probability sampling are the two main types of sampling. Selecting the group from whom you will actually gather data for your study is the process of sampling. If you wanted to examine the perspectives of students at your university, for instance, you could interview a sample of 100 students. With the help of sampling, you can test a statistical hypothesis on the features of a population.

The yellow pages are used by the researcher to do research on neighborhood companies. As a result, her sample space also includes a list of nearby companies.  

Complete question: A researcher is conducting a study on local businesses. In order to create her sample, she uses the Yellowpages and a dice. She rolls the dice, and, depending on the number rolled, counts that many businesses down in the list to call. What is her sampling frame?

The list of local businesses in the Yellowpages.

All businesses within a $10 \mathrm{~km}$ radius.

The list of local businesses in the newspaper.

All businesses in the state she is located in.

The list of registered businesses in her area.

To read more about samplings, visit brainly.com/question/13287171

#SPJ4

5 0
2 years ago
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