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professor190 [17]
3 years ago
7

Help please it’s for a mastery test

Mathematics
2 answers:
FromTheMoon [43]3 years ago
8 0
The answer is C!! The third option
seropon [69]3 years ago
8 0

Answer:

c.

Step-by-step explanation:

7^5 means it wants 7 times its self 5 times so you get 7x7x7x7x7. I hope this helps, have a good night

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12. The ratio of the width to the length of a rectangle is 1:3 Which of the following
Zepler [3.9K]

Answer:

The rectangle with ratio 2:6

As When we simplify 2:6 we get 1:3

The equvalents of 1:3are

2:6 ,3:9,4:12,5:15,6:18,7:21,8:24,9:27,10:30..

7 0
3 years ago
Add.<br> 3 7/11 + 9 6/11<br> Write your answer as a mixed number in simplest form.<br><br> Help
Vilka [71]

Answer:

13 2/11

Step-by-step explanation:

40/11+105/11

145/11

13 2/11

7 0
2 years ago
Read 2 more answers
I'll give brainliest to correct answer TvT
laila [671]
It’s 1.4 bc 2.9-1.5
7 0
2 years ago
Read 2 more answers
Find the value of x in the diagram shown below.
koban [17]

Answer:

a) <u>∡ADC = 270°</u>

b) <u>∠DAE = 38°</u>

Step-by-step explanation:

Using Inscribed Angle Theorem :

  • ∡ADC = 2 x ∠ABC
  • ∡ADC = 2 x 135°
  • <u>∡ADC = 270°</u>

Similarly :

  • ∠DAE = 1/2 x ∡DE
  • ∠DAE = 1/2 x 76°
  • <u>∠DAE = 38°</u>
5 0
2 years ago
Read 2 more answers
The population of a small town is decreasing exponentially at a rate of 14.3% each year. The current population is 9,400 people.
KonstantinChe [14]

Using an exponential function, the inequality is given as follows:

9400(0.857)^t < 6000

The solution is t > 2.9, hence the tax status will change within the next 3 years.

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

For this problem, the parameters are given as follows:

A(0) = 9400, r = 0.143.

The population after t years is modeled by:

A(t) = A(0)(1 - r)^t

A(t) = 9400(1 - 0.143)^t

A(t) = 9400(0.857)^t

The tax status will change when:

A(t) < 6000

Hence the inequality is:

9400(0.857)^t < 6000

Then:

(0.857)^t < \frac{6000}{9400}

\log{(0.857)^t} < \log{\left(\frac{6000}{9400}\right)}

t\log{0.857} < \log{\left(\frac{6000}{9400}\right)}

Since both logs are negative:

t > \frac{\log{\left(\frac{6000}{9400}\right)}}{\log{0.857}}

t > 2.9.

The solution is t > 2.9, hence the tax status will change within the next 3 years.

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

7 0
2 years ago
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