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Katyanochek1 [597]
3 years ago
15

Can I get help plzzz thank you

Mathematics
2 answers:
VikaD [51]3 years ago
7 0

Answer:

something

Step-by-step explanation:

viva [34]3 years ago
4 0
10ft? 2x5 is 10 and idk what the question is cause you don’t show it
You might be interested in
Write the equation of the circle whose center is (-4,8) and has a diameter of 18
svetoff [14.1K]

Answer:

(x + 4)^2 + (y - 8)^2 = 81

or

(x + 4)^2 + (y - 8)^2 = 9^2 depending on how your teacher wants it written.

Step-by-step explanation:

The standard form for a circle is

(x + h)^2 + (y + k)^2 = r^2

r is the radius.

You are given the diameter

r = d/2

r = 18/2

r = 9

So you already have the right hand side of the equation

(x + h)^2 + (y + k)^2 = 9*2

(x + h)^2 + (y + k)^2 = 81

You basically have h and k as well. They come from the center point.

h = 4

k = - 8

So the equation of the circle (and the answer) is

(x + 4)^2 + (y - 8)^2 = 81

One question remains. Why do the x and y values change signs? If you know what the distance formula is, then what you are finding is the distance r of all points on the circle from the center of the circle.

It is the distance formula that is actually the formula for the circle.

6 0
3 years ago
889,531 rounded to the nearest 10 thousand
Firdavs [7]

90,000 because 9 is in the thousandths place and rounded up is 90,000


6 0
3 years ago
Read 2 more answers
Which measurement is most accurate to describe the width of a penny 19 mm 8 cm 1 m or 0.3 km
Iteru [2.4K]
Its 19 mm. 19 mm is roughly 0.75 inches which is the width of a penny
4 0
3 years ago
A person is listening to a 500 Hz tone sitting from a distance of 450 m from the sound source. What is the time interval between
iragen [17]

Answer:

So, the time interval between successive compression from the source is 0.002 seconds.

Step-by-step explanation:

Given that,

Frequency of the tone, f = 500 Hz

It is sitting at a distance of 450 m from the source of sound, d = 450 m

Let t is the time interval between successive compression from the source. We know that the relation between the frequency and the time period is :

T=\dfrac{1}{f}T=\dfrac{1}{500}\\\\T = 0.002 s

<h3>So, the time interval between successive compression from the source is 0.002 seconds.</h3>
8 0
3 years ago
Please solve quickly!
mafiozo [28]

Answer:

F(-2)=20

Step-by-step explanation:

given F(x)=-2x^3+4

F(-2)={(-2)\times(-2)^3}+3

put -2 in place of x

F(-2)=(-2)\times(-8)+4

      =16+4=20

F(-2)=20 answer

6 0
3 years ago
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