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2 years ago

Please answer asap this is 7th grade math find the area

Mathematics

2 answers:

Rainbow [258]2 years ago

7 0

25pi

pi x 10^2 is 100pi

Divide by four = 25pi

Pepsi [2]2 years ago

6 0

Answer:

78.53981634²

Step-by-step explanation:

(π×r²)÷4=area of shape

r (radius) = 10

π × 10² = 314.1592653²

314.1592653² ÷ 4 = 78.539816332

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D=√(-4-42.78)^2 + (3-44.78)^2

svetlana [45]

The expression is equal to 3sqrt(517)/5

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1 year ago

Write an exponential function to describe the given sequence of numbers, assuming that the first number in the sequence correspo

Fantom [35]

Answer:

$y = 5(6) {}^{x}$

Step-by-step explanation:

A exponential function is represented by

$y = ab {}^{x}$

where a is the vertical stretch and b is the base and x is the nth

power of x

Since the first number corresponds with zero, that means our y intercept is the first number.

This means when x=0 , y=5 so let find the value of 5.

$5 = ab {}^{0}$

b to the 0th power equal 1 so

$5 = a \times 1$

$a = 5$

Our equation is for now

$y = 5b {}^{x}$

Now let plug in 1,30

$30 = 5b {}^{1}$

Divide 5 by both sides

$6 = b {}^{1}$

Anything to the 1st power is itself so b equal 6.

So our equation is

$y = 5(6) {}^{x}$

6 0

2 years ago

1. since A^2= 36x^2, a=?<br> 2. since b^2= 49, b=?

Wewaii [24]

Answer:

Step-by-step explanation:

36x² - 49 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

then

36x² - 49

= (6x)² - 7²

= (6x - 7)(6x + 7)

Thus 6x - 7 is a factor of the expression

7 0

2 years ago

Read 2 more answers

What is the meaning of Post war?

Licemer1 [7]

Post war means the time after a war had just taken place

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3 years ago

What is the scientific notation for 3800

BigorU [14]

3.8 x 10²

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3 years ago