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3 years ago

11

Please help I will mark brainliest and give 20 points! Samantha types 40 words per minute. How many words can she type in 8 minu

tes? This is a unit rate question by the way.

1 answer:

iVinArrow [24]3 years ago

8 0

320 words. hope this helps!

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If you walk 3 miles a day every day how many feet per hour can you walk in 2 weeks

dusya [7]

I think the answer is 221,760

4 0

4 years ago

The endpoints of the longest chord on a circle are (4, 5.5) and (4, 10.5).

In-s [12.5K]

The longest chord on the circle is the diameter, and the center of the circle is the midpoint of the diameter.

Use the midpoint formula to find the center
((x1 +x2)/2 , (y1+y2)/2).. Just substitute them for the solution

the x-coordinates are the same, so you can just subtract the y-coordinates to find the radius.
10.5 - 8 = 2.5

The equation of the circle is (x - h)² + (y - k)² = r² where r is the radius and (h, k) is the center.

(x - 4)² + (y - 8)² = 6.25

5 0

3 years ago

Read 2 more answers

PLEASE HELP ME NOW!!

puteri [66]

Answer:

$x=4+-2\sqrt{7}$

Step-by-step explanation:

To solve, we need to take square root of both sides first:

$(x-4)^2=28\\\sqrt{(x-4)^2} =+-\sqrt{28} \\x-4=+-\sqrt{28}$

Now we use the property of radical shown below to simplify square root of 28:

Property: $\sqrt{x*y}=\sqrt{x} \sqrt{y}$

Now, we have:

$x-4=+-\sqrt{28}\\x-4=+-\sqrt{4*7}\\x-4=+-\sqrt{4}\sqrt{7}\\x-4=+-2\sqrt{7}$

Now we take 4 to the other side and isolate x:

$x-4=+-2\sqrt{7} \\x=4+-2\sqrt{7}$

first answer choice is right.

4 0

4 years ago

Read 2 more answers

Whitney read a total of 4 books over 2 months. if whitney has read 16 books so far, how many months has she been with her book c

Tema [17]

She has been with her book club for eight months.

8 0

3 years ago

Find the GCF ( Greatest Common Factor)<br><br><br>18;45<br><br><br>24;16

nika2105 [10]

18;45 = 9

24;16 = 8

I hope this helps

8 0

4 years ago