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ser-zykov [4K]
3 years ago
12

What is the value of 7x-9y when x=1 and y=8?

Mathematics
2 answers:
natta225 [31]3 years ago
7 0
7x-9y
7(1)-9(8) = -65
julsineya [31]3 years ago
4 0
It would be - 65

7 x 1 = 7
9 x 8 = 72

7 - 72 = - 65

hope this helps you
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Express in its lowest terms the ratio of 25:75
shutvik [7]

Answer: 1:3

Step-by-step explanation:

<u>Divide both sides by 25:</u>

25/25:75/25

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6 0
3 years ago
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To find 5, Beau found 22 = 4 and 32 = 9. He said that since 5 is between 4 and 9, 5 is between 2 and 3. Beau thinks a good estim
shusha [124]

Complete question

To find \sqrt{5} , Beau found 2^2 = 4 and 3^2 = 9 . He said that since 5 is between 4 and 9, \sqrt{5}, is between 2 and 3. Beau thinks a good estimate for \sqrt{5} , is \frac{2 + 3}{2} =  2.5 Is his estimate high or low? How do you know?

Answer:

The estimation is high because 5 is very close to 4 so \sqrt{5} will also be very close to \sqrt{4} which is lower than the estimate

In order to get a good estimate

The first step is to choose a number between 2 and 3 let say 2.8 , 2,85 , 2.9 and the square them

i.e

2.1^2 =  4.41

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Step-by-step explanation:

8 0
3 years ago
Someone please help me!!! I need it ASAP!
Anvisha [2.4K]
The last one is the correct answer!! nothing that is dilated can be congruent to another triangle.
4 0
3 years ago
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Natali [406]
Your answers:

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5 0
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PLEASE HELP!!
Marrrta [24]

Answer:

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Step-by-step explanation:

52 divided by 13 is four.

3 0
2 years ago
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