3 years ago

Hello everyone. school. sucks :)

Mathematics

2 answers:

notsponge [240]3 years ago

5 0

Answer:

Omg it really does...

Step-by-step explanation:

soldi70 [24.7K]3 years ago

3 0

Answer:

Correct

Step-by-step explanation:

i asked siri lol

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Angles A and B are complementary. If mA is 13°, what is the measure of B? A. 167° B. 347° C. 13° D. 77°

Marta_Voda [28]

Answer:

Step-by-step explanation:

complementary sums until 90 degrees

90-13=77

7 0

3 years ago

The population of a city increase exponentially at a rate of x% every 5 years

Lerok [7]

Answer:

1.1460277. Put in your decimal place given to you.

This is the percentage rate.

Step-by-step explanation:

f(x)=0=60100

55=120150

60100=a*b^0

120150/60100=60100/60100*b^5

b^5^(1/5)=5square root(120150/60100)=1.14860277

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3 years ago

27^x = 9^x − 4 Question 1 options: x = 8 x = 4 x = −4 x = −8

Mariulka [41]

Answer:

x = -8

Step-by-step explanation:

Given the equation:

$27^x=9^{x-4}$

Note that

$27=3^3\\ \\9=3^2,$

then

$27^x=(3^3)^x=3^{3x}\\ \\9^{x-4}=(3^2)^{x-4}=3^{2(x-4)}$

Rewrite the equation as

$3^{3x}=3^{2(x-4)},$

then

$3x=2(x-4)\\ \\3x=2x-8\\ \\3x-2x=-8\\ \\x=-8$

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3 years ago

Which is an equation for the line that contains (-1, -2) and has a slope of -5?

nexus9112 [7]

The equation would be y = -5x - 7

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3 years ago

Oliver wants to run at least 30 miles this week she has already run 14 miles by Tuesday how many miles does she need to run each

Olin [163]

Answer:

If she wants to run 16 more miles in four days (30 miles minus already done 14 miles) she can run 4 miles a day for the next four days. 4 miles a day.

Step-by-step explanation:

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3 years ago