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3 years ago

9. A circle has radius 15 in. Find its circumference and area to the nearest tenth.

Mathematics

2 answers:

Crank3 years ago

7 0

Answer:

i think the circumference is 90

Step-by-step explanation:

pi× diameter = circumference

diamiter is double the radius so 30

30 × pi= 94.2

rounded to the neerest 10th is 90

Wewaii [24]3 years ago

5 0

Answer:

I believe 706.5

Step-by-step explanation:

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The diagram below shows a large square with two smaller squares within it.

deff fn [24]

Answer:

The shaded area is $23\ in^{2}$

Step-by-step explanation:

we know that

The shaded area is equal to the area of the large square minus the area of the two smaller squares

$A=6^{2} -(3^{2} +2^{2})\\ \\ A=(2*3)^{2} -(3^{2} +2^{2})$

$A=(2^{2})(3^{2}) -(3^{2} +2^{2})$ ---> expression that represent the shaded area

Calculate the shaded area

Remember that

$3^{2}=9\\ 2^{2}=4$

substitute

$A=(4)(9) -(9 +4)\\ \\A=36-13\\ \\A=23\ in^{2}$

7 0

4 years ago

I REALLY REALLY NEED HELP PLEASE <br> For the function, f (x), find f^-1 (x)<br> f (x) = e x√4−6/7

Andrews [41]

answer:

$f (x)=4x^{4} +3x^{2} +7x -15$

Explanation:

We start by integrating both sides.

$f(x)=∫16x3+6x+7dx$

$f(x)=4x4+3x2+7x+C$

Now we solve for c

$−1=4(1)4+3(1)2+7(1)+C−1=4+3+7+C−1−14=CC=−15$

Hopefully this helps!

8 0

3 years ago

A couple plans to have three children. What is the probability that

Hitman42 [59]

Answer:

1:3 is the probability

Step-by-step explanation:

8 0

3 years ago

WILL MARK AS BRIANLIEST AND GIVE 20 POINTS

ValentinkaMS [17]

The initial value is the Y value when X = 0

In the table, as X increases by 1 unit, Y decreases by 2 units,

the rate of change would be -2.

This would also mean when x is 0, Y would be 12 ( initial value)

The correct answer is: Initial value: 12, rate of change: −2

3 0

3 years ago

Question as attached screenshot

olga nikolaevna [1]

Answer:

m= -2 c= -1

Step-by-step explanation:

2x+3y+1=0

3y= -2x-1

3 0

3 years ago