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2 years ago

Find the area of a square with a diagonal of 8 cm.

Mathematics

1 answer:

Fofino [41]2 years ago

3 0

Answer:

To find the area of a square with only the diagonal known,

Square the diagonal and divide by 2:

8^2 = 64

64/2 = 32

The area is 32 cm^2

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Can someone please help me out with this one?

Ann [662]

Answer:

Its 4!

Step-by-step explanation:

4×2=8

32/8=4

I dont really know if this is one of the options because I can't really see them. Would you mind typing in the options if im wrong? Thank you!

Hope this helps, and don't forget to follow!

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2 years ago

The center of a circle is at (−3, 1) and its radius is 9. What is the equation of the circle?

jek_recluse [69]

If a circle has center (a,b) and radius r, the equation is

$(x-a)^2+(y-b)^2=r^2$

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$(x+3)^2+(y-1)^2=81$

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2 years ago

Can you help me get the answer for <br> 1/3+1/4<br> plz

Ivahew [28]

7/12 is the answer :)

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2 years ago

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What is a reasonable estimate for the solution? O (1,-3/4) O (-3/4,1) O (-1,3/4) O (3/4,-1)

Zina [86]

Answer:

See Explanation

Step-by-step explanation:

Your question is incomplete, as the equations or graph or table(s) were not given.

However, I'll give a general way of solving this.

Take for instance, the equations are:

$y = \frac{4}{3}x - 1$

$y = \frac{2}{3}x - \frac{1}{2}$

To do this, we start by equating both equations.

$y = y$

i.e.

$\frac{4}{3}x - 1= \frac{2}{3}x - \frac{1}{2}$

Collect Like Terms

$\frac{4}{3}x - \frac{2}{3}x= 1 - \frac{1}{2}$

Take LCM

$\frac{4x- 2x}{3}= \frac{2 - 1}{2}$

$\frac{2x}{3}= \frac{1}{2}$

Cross Multiply

$2x * 2 = 3 * 1$

$4x = 3$

Make x the subject

$x = \frac{3}{4}$

Substitute 3/4 for x in $y = \frac{4}{3}x - 1$

$y = \frac{4}{3} * \frac{3}{4} - 1$

$y = 1 - 1$

$y = 0$

Hence:

$(x,y) = (\frac{3}{4},0)$

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2 years ago

8/7 x 7/8<br> solve this.

Helen [10]

Answer: 1

Step-by-step explanation: Because it is

8 0

3 years ago

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