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3 years ago

12

!GEOMETRY! does any get the questions for 8-10 and the other 10 as well. If i so please help, we have a test on these so please

leave a tiny explanation on how you get the answer so i can learn. thank you.

1 answer:

denis23 [38]3 years ago

7 0

Answer:

Answer:8: -4/7x+1 9: y=-x+1

Step-by-step explanation:

I dont knwo the rest just put into slope intercept form

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stellarik [79]

Answer: 9x - 485/81

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6 0

3 years ago

The perimeters of similar triangles are in the same ratio as the corresponding sides

wariber [46]

Answer:

Always

Step-by-step explanation:

Suppose you have triangle ABC with side lengths a, b, c. Suppose that is similar to triangle DEF with side lengths d, e, f.

Now, let k be the ratio of corresponding sides ...

k = d/a

Because the same factor applies to all sides, we also have ...

k = e/b = f/c

That is, if we multiply by the denominators of each of these fractions, we get ...

d = a·k
e =b·k
f = c·k

The perimeter of ΔABC is ...

perimeter(ABC) = a + b + c

The perimeter of ΔDEF is ...

perimeter(DEF) = d + e + f = a·k + b·k + c·k

perimeter(DEF) = k(a + b + c) = k·perimeter(ABC)

k = perimeter(DEF)/perimeter(ABC)

That is, the perimeters are in the same ratio as corresponding sides.

3 0

3 years ago

Find the area of the square

butalik [34]

Answer:

13 units^2

Step-by-step explanation:

one side of the square =

$AD^{2} = 2^{2} +3^{2}$

$AD^{2} =13$

$AD = \sqrt{13}$

So area of square = Length * Length

= $\sqrt{13}$ *

= 13

8 0

3 years ago

Read 2 more answers

Find the surface area of a cube with edges 6.57 cm long.

notsponge [240]

Answer:

258.9894 is the total surface area

5 0

3 years ago

A shop keeper has 8 gallons, 3 quarts,

ioda

Answer:

I believe it would be 86 cups left of milk.

Step-by-step explanation:

8 gallons= 128 cups of milk

3 quarts= 12 cups

Plus the 1 cup of milk he had equals 141 of milk in total

Now the customer wants 2 gallons (32 cups of milk), 5 quarts ( 20 cups), and 3 cups which is 55 cups of milk.

Now we minus what the customer bought from what the shop keeper had so:

55-141=86

6 0

3 years ago