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4 years ago

What is the area of a radius =9m using 3.14 for pi

Mathematics

1 answer:

Valentin [98]4 years ago

5 0

Area is pi x diameter, so the answer would be 3.14 x 18

(Diameter is radius x 2 , 9x2=18)

Hope this helps!

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In the diagram, DEC is a

Leya [2.2K]

Step-by-step explanation:

This is a reflection. A reflection is a transformation involving two shapes looking the same by "bouncing it off a line without coming back.( meaning a reflection goes some where else not to it original poistion.)

Others reason why Why?

Line m is perpendicular to Line c.

B and E are equidistant from c that BC=CE.

Why the others are wrong.

While you could rotate this triangle 180 degrees, the transformation occurs about a line not a point. So using a rotation is wrong.

A translation doesnt occur about a line.

A guide reflection doesnt work since the transformations are already mapped correctly if you do the reflection. It doesnt need a translation.

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3 years ago

Nate’s weekly pay increased from $710 to $770. Which of the following is closest to the percent that his pay increased

Anastasy [175]

List the percentages btw thanks my answer please

3 0

3 years ago

Divide the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending power

lana66690 [7]

After dividing the polynomials, the answer is 2x-8

8 0

3 years ago

An airplane pilot is fertilizing a field. The height y in feet of the fertilizer t seconds after it is dropped is modeled by y(t

zheka24 [161]

Answer:

About 360.178 feet

Step-by-step explanation:

So we want the vertical distance between the fertilizer and the ground to be 0.

This going to be about the time the pilot has dropped it

So we first need to find when y is 0.

$0=-16t^2-3t+300$

We are going to use the quadratic formula to solve for t:

$a=-16$

$b=-3$

$c=300$

The quadratic formula is:

$t=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

$t=\frac{3 \pm \sqrt{(-3)^2-4(-16)(300)}}{2(-16)}$

$t=\frac{3 \pm \sqrt{9+19200}}{-32}$

$t=\frac{3 \pm \sqrt{19209}}{-32}$

$t=\frac{3+\sqrt{19209}}{-32} \text{ or } \frac{3-\sqrt{19209}}{-32}$

$t \approx -4.424891774 \text{ or } 4.237391774$

So the pilot has released it at about 4.237391774 seconds since the fertilizer has actually hit the ground at roughly this time.

So we want to know the horizontal distance at t=4.237391774:

$85t$

$85(4.237391774)$

$360.1783008$

360.178 feet

7 0

3 years ago

Each month, Allison gets a $15 allowance and earns $100 working at the theater. She uses the expression 15x + 100y to keep track

jasenka [17]

Part A:

Expression $15x+100y$
The constants are 15 and 100
The variables are $x$ and $y$

Part B:

Expression $15x+100y$ has two terms; $15x$ and $100y$ . We know this because both have different variables attached to them

Part C:

The term $15x$ is the expression for the total earned from her allowance

8 0

3 years ago