Ask question

Ask question

All categories

3 years ago

9

Find the area of the circle.

1 answer:

Alona [7]3 years ago

4 0

Answer:

C is the answer.

Step-by-step explanation:

Area of circle = $\pi r^2$

radius = 3

use pi = 3.14

So you have 3.14(3)^2

which equals 28.26 units squared, which is C.

You might be interested in

What are the coordinates of each point after quadrilateral ABCD is reflected across the y-axis and then translated 2 units down?

zheka24 [161]

Answer:

$A" =(-1,-1)$ $B" =(-2,1)$

$C" =(-4,1)$ $D" =(-5,-1)$

Step-by-step explanation:

Given

$A = (1,1)$ $B =(2,3)$

$C = (4,3)$ $D = (5,1)$

Required

The new coordinates after reflected across y-axis and shifted 2 units down

When a point is reflected across the y-axis, the rule is:

$(x,y)=>(-x,y)$

So:

$A = (1,1)$ $=> A' = (-1,1)$

$B =(2,3)$ $=> B' = (-2,3)$

$C = (4,3)$ $=> C' = (-4,3)$

$D = (5,1)$ $=> D' = (-5,1)$

When a point is translated 2 units down, the rule is:

$(x,y) => (x,y-2)$

So:

$A = (1,1)$ $=> A' = (-1,1)$ $=> A" =(-1,-1)$

$B =(2,3)$ $=> B' = (-2,3)$ $=> B" =(-2,1)$

$C = (4,3)$ $=> C' = (-4,3)$ $=> C" =(-4,1)$

$D = (5,1)$ $=> D' = (-5,1)$ $=> D" =(-5,-1)$

So, the new coordinates are:

$A" =(-1,-1)$ $B" =(-2,1)$

$C" =(-4,1)$ $D" =(-5,-1)$

5 0

3 years ago

What are the ratios for SIN A and COS A

miskamm [114]

Answer:

A

Step-by-step explanation:

A good trick for trigonometric functions is to remember SOHCAHTOA:

Sin=<u>O</u>pposite over <u>H</u>ypotenuse

Cos=<u>A</u>djacent over <u>H</u>ypotenuse

Tan=<u>O</u>pposite over <u>A</u>djacent

The red arrows on the attachment indicate where opposite, hypotenuse, and adjacent are for angle A.

So in this case, the sin of angle A (opposite over hypotenuse) would be $\frac{24}{26}$ and cos A (adjacent over hypotenuse) would be $\frac{10}{26}$ .

I hope this helps!

6 0

2 years ago

A survey of 391 children given at a local elementary school showed that 175 like chocolate ice cream, 150 like pistachio ice cre

poizon [28]

Answer:

325

Step-by-step explanation:

Just add the number of kids who like chocolate, 175 to the number of kids of like pistachio, 150, and you get 325 children

6 0

2 years ago

frosja888 [35]

I don’t know if this is right but the way I did it I got 7.5

3 0

3 years ago

Read 2 more answers

IDENTIFY EACH COEFFICIENT: 3m

Rainbow [258]

Answer:

theirs nothing to identify tho

Step-by-step explanation:

4 0

2 years ago