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3 years ago

11

There are about 4,014,500,000 square inches in a square mile. Write this answer in a scientific notation. PLEASE. = /

1 answer:

Karolina [17]3 years ago

3 0

<span>4.0145 x 109 sq in is the answer</span>

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Help!! timed! find the domain and range pls!

BARSIC [14]

Answer:

domain: (-infinity, infinity)

range [-41/4, infinity)

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3 years ago

Which equation represents an exponential function that passes through the point (2,80)

Anon25 [30]

Answer:

D

Step-by-step explanation:

The point (2,80) has the input value x = 2.

Substitute x = 2 into each function.

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3 years ago

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k0ka [10]

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3 years ago

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If the 10th of the 10 consecutive numbers is 10, what is their sum?

liq [111]

Represent these consecutive numbers (assuming that they are all integers):

x
x+1
x+2
x+3
x+4
x+5
and so on
x+8
x+9 is the tenth number. x+9 = 10, so x = 9.

Think of it this way: there are 10 consecutive numbers, and the last one is 10.

Working backwards, we get the sequence 10, 9, ... 3, 2, 1.

The sum of such an arith sequence is equal to the count of the numbers times the average of the first and last terms:

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3 years ago

Find y.<br> 30<br> 20 <br> Need help asap

Neporo4naja [7]

Answer:

y = 10

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = $\frac{1}{2}$ , then

sin30° = $\frac{opposite}{hypotenuse}$ = $\frac{y}{20}$ = $\frac{1}{2}$ ( cross- multiply )

2y = 20 ( divide both sides by 2 )

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3 years ago