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3 years ago

∠3 and ∠4 are supplementary angles. Given m∠3=56°, find m∠4

Mathematics

1 answer:

JulijaS [17]3 years ago

3 0

Answer: the measure of angle 4 is 124.

Step-by-step explanation: A supplementary angle is equal to 180°, so you have to subtract 56° from 180°.

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The population of a certain city was 4001 in 1999. It is expected to decrease by about 0.37% per year. Write an exponential deca

cluponka [151]

An exponential decay function, and use it to approximate the population in 2027 is P(t) = 4001e^-(0.0037)(28) = P(t) = 4001e^-0.1036

<h3>Exponential equation</h3>

The standard exponential function is expressed as:

P(t) = P0e^-rt

P0 is the initial population = 4001
r is the rate. = 0.37% = 0.0037
t is the time

Substitute

P(t) = 4001e^-(0.0037)t

If t = 28 (by 2027)

An exponential decay function, and use it to approximate the population in 2027 is P(t) = 4001e^-(0.0037)(28) = P(t) = 4001e^-0.1036

Learn more on exponential function here: brainly.com/question/12940982

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3 0

2 years ago

In math class, 4 students complete individual surveys to determine the percentage of high school teachers that have a second job

dlinn [17]

Answer:

Option D) B and C

Step-by-step explanation:

we know that

To find out the percentage of high school teachers that have a second job, divide the number of teachers that have a second job by the total number of teachers

Survey A

$\frac{28}{110}=0.2545$

Convert to percentage

$0.2545(100)=25.45\%$

Survey B

$\frac{27}{90}=0.3$

Convert to percentage

$0.3(100)=30\%$

Survey C

$\frac{21}{70}=0.3$

Convert to percentage

$0.3(100)=30\%$

Survey D

$\frac{32}{80}=0.4$

Convert to percentage

$0.4(100)=40\%$

Compare the percentages

Surveys B and C have the same percentage

therefore

Surveys B and C show proportional results, because the ratio of the number of teachers that have a second job by the total number of teachers is equal (this number is the constant of proportionality k in a proportional relationship between two variables)

8 0

3 years ago

Please help me this question

Juli2301 [7.4K]

This is the answer. If this helps you please give brainliest.