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3 years ago

Bruh I’m so confused on how to do this

Mathematics

1 answer:

Dmitrij [34]3 years ago

3 0

Rotation doesn't matter for this question... The dilation is key... you made each side of the triangle 4 times bigger

<h3>Answer:</h3>

A. False:

$Area= \frac12 \times base \times height$ .... if the base is 4 times bigger and the height is 4 times bigger .... the area will be 16 times bigger

B. True .... you just add all sides, each is 4 times bigger

C. False ... by definition of dilation, the sides grew

D. True... Size changed, but the shape stayed the same (so, did the angles)

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Humans have a normal body temperature of 98.6°F. A temperature, x, that differs from normal by at least 2°F is considered unheal

Alecsey [184]

Answer:

$x\geq100.6$ and $x\leq 96.6$

Step-by-step explanation:

It is given that the normal body temperature is $98.6^\circ F$ .

A temperature 'x' that differs from normal by at least $2^\circ F$ is considered unhealthy. So the inequality to represent such situation is,

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It can be further written as,

$x-98.6\geq 2$ and $x-98.6\leq -2$

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So the inequality to represent such condition is $x\geq100.6$ and $x\leq 96.6$ .

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Consider this system of inequalities. x + y ≤ –3 y

Oksana_A [137]

The graph of a single linear inequality splits the coordinate plane into two regions. On one side lie all the solutions to the inequality. On the other side, there are no solutions. Consider the graph of the inequality y < 2x + 5.

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If the first equation is multiplied by 3 and then the equations are added, the result is _____.

tensa zangetsu [6.8K]

When you multiply the first equation by 3, you get:
3 × 3x = 9x
3 × y = 3y (but when added, that part gets eliminated)
3 × 3 = 9
So you end up with
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x - 3y = -2
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10x = 7

So your answer is B. 10x = 7. I hope this helps!

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3 years ago

Bailey writes the expression g2 + 14g + 40 to represent the area of a planned school garden in square feet. If g = 5, what are t

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The expression is $A=g^2 + 14g + 40$ .
$D=14^2-4\cdot 40=196-160=36 \\ \sqrt{D}=6 \\ q_{1,2}= \dfrac{-14\pm 6}{2} =-4,-10$ .
Then $A=g^2 + 14g + 40=(g+4)(g+10)$ .
The width is g+4, the length is g+10.
When g=5,
g+4=9 ft and g+10=15 ft.
Answer: correct choice is D.

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3 years ago