3 years ago

12x+24=180 x=13 but 6y+7 find the value of y

Mathematics

1 answer:

kaheart [24]3 years ago

7 0

Answer:

x = 13

y = 18

you can check by putting into equatiin

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3 years ago

Given (x - 1)^2 = 50, select the values of x.<br> X = -49<br> x = 51<br> x = 1+5.12<br> x = 1-5.12

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3 years ago

A model robot uses the scale 1 inch : 2 feet. If the model robot was 5 inches tall, the real robot would be __ feet tall

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1 inch : 2 feet

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2 years ago

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How would I work this out

liraira [26]

Answer:

10.1

Step-by-step explanation:

You can find the length of XY by first finding YZ using the Pythagorean theorem. Then subtract the length from 15 for the length of the other triangle. Use the Pythagorean theorem again to find XY.

The Pythagorean theorem is used for all right triangles and is the formula $a^2 + b^2 = c^2$ . Here a = 4, b is unknown and c = 7.

So $4^2 + b^2 = 7^2\\16 + b^2 = 49\\b^2 = 33\\b = \sqrt{33} =5.75$

Subtract 5.75 from 15.

15 - 5.75 = 9.25.

Repeat the Pythagorean Theorem again with a = 4, b = 9.25 and c is unknown. Solve for c. This is XY.

$4^2 + 9.25^2 = c^2\\16 + 85.56 = c^2\\101.6 = c^2\\10.1 = c$

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