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krok68 [10]
3 years ago
7

How do I take the square root of

Mathematics
1 answer:
alexgriva [62]3 years ago
6 0
All you have to do here is add 209 to both sides to get -8x² - 9x + 209 = 0
From there I'm sure you can work it out :)
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In packing for a trip, Sarah puts three pairs of socks - one red, one blue, and one green - into one compartment of her suitcase
Veronika [31]

Answer:

1/5 or 20%

Step-by-step explanation:

This problem can be easily solved by finding the probability of her picking one matching pair to leave in the suitcase (which results in pulling out exactly two matching pairs)

For the first sock, it does not matter what sock she picks.

For the second sock, there is only 1 out of the 5 socks left that would match the first one picked. Therefore, the probability that she pulls out exactly two matching pairs is 1/5 or 20%

8 0
3 years ago
Find the slope between the two points.<br> (2,7) and (5, 8 )
vlabodo [156]

Answer:

Slope

0.33

Step-by-step explanation:

8 0
3 years ago
Find the value of f(7). y = f(x)
kozerog [31]

Step-by-step explanation:

For x = 7 or y = f(7)

Graph and solution are in the picture below

8 0
3 years ago
Use each of the digits 2, 3, 7, and 8. Make it two different multiplication problems so that each product is larger than 5000. U
SVEN [57.7K]
83 x 72 = 5,976. 82 x 73 = 5,986. The way to do this is to take the two biggest numbers and use them in the tens place. Then take the other numbers and put them in the ones space. Then switch the ones slot numbers around to get two different numbers over 5000.
6 0
3 years ago
Which ratios are equal to 64 when the scale factor is 8? Select all that apply.
Luden [163]

Answer:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

Step-by-step explanation:

Suppose that we have a cube with sidelength M.

if we rescale this measure with a scale factor 8, we get 8*M

Now, if previously the area of one side was of order M^2, with the rescaled measure the area will be something like (8*M)^2 = 64*M^2

This means that the ratio of the surfaces/areas will be 64.

(and will be the same for a pyramid, a rectangle, etc)

Then the correct options will be the ones related to surfaces, that are:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

5 0
3 years ago
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