2 years ago

4 ? 10 9 22 Do these two ratios form a proportion

Mathematics

1 answer:

Sav [38]2 years ago

8 0

Yes because they as fraction would be equal parts I think

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Carpenters use a tool called a speed square to help them mark right angles . A speed square is a right triangle

Ronch [10]

Answer:

A. $Area = \frac{1}{2}(2x^2 - 2x - 24)$

B. $Area = 3.75 in^2$

Step-by-step explanation:

A. $Area = \frac{1}{2}bh$

Where,

$b = 2x + 6$

$h = x - 4$

Plug in the values to get a polynomial that represents the area of the tool

$Area = \frac{1}{2}(2x + 6)(x - 4)$

$Area = \frac{1}{2}(2x(x - 4) + 6(x - 4)$

$Area = \frac{1}{2}(2x^2 - 8x + 6x - 24)$

$Area = \frac{1}{2}(2x^2 - 2x - 24)$

B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.

$Area = \frac{1}{2}(2(4.5)2 - 2(4.5) - 24)$

$Area = \frac{1}{2}(2(20.25) - 9 - 24)$

$Area = \frac{1}{2}(40.5 - 9 - 24)$

$Area = \frac{1}{2}(7.5)$

$Area = 3.75 in^2$

8 0

3 years ago

FREEE POINTSSS!!!!!! x + 6 = -11

katrin2010 [14]

Answer:

x = -11 - 6 = -17

4 0

2 years ago

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Will mark brainliest if amswer right pitcure included

just olya [345]

Answer:

QPT is obtuse

SPQ is acute

TPR is right

Step-by-step explanation:

Took geometry two years ago

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2 years ago

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During a flu epidemic, 44 students out of the 80 who are in Ms Grant’s class were absent. What percent were absent?

wel

44/80 x 100
=0.55 x 100
=55%

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2 years ago

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What percent is equivalent to 12/30 ? 12% 30% 40% 60%

laila [671]

12/30 is = 0.4 x 100 = 40% can I have brainliest if its right?

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2 years ago

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