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ehidna [41]
2 years ago
12

Negative four times the sum of a number and 3 is at least 28, translate.

Mathematics
1 answer:
user100 [1]2 years ago
5 0

Answer: -4 * (n+3) \geq 28

Step-by-step explanation:

Negative four -> -4

Times the sum of a number and 3 -> -4 * (n + 3)

Is at least 28 -> -4 * (n+3) \geq 28

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two right triangles are similar if an acute angle of one triangle is congruent to an acute angle of the other triangle. a. true
MArishka [77]
Answer:  True

One angle of a right triangle  = 90°
Let x =  the acute angle of one angle.
Let y =  the angle of the other angle.

Because the sum of angles in a triangle is 180°,
x + y + 90 = 180
x + y = 90
y = 90 - x

Therefore the angles for each of the two triangles are
x, 90° - x, 90°.

The two triangles are therefore similar because of AAA (Angle, Angle, Angle).
5 0
3 years ago
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Calculate the percentage change (increase or decease) that occurs when:
SashulF [63]

The first step is to find the CHANGE. This is done by subtracting the two values and taking the absolute value. Next step is to find the ratio of the change to the original and multiplying by 100% to make it a percentage.

So;

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     ratio of change to original = 35:25,

    multiplying by 100% will give 35/25 × 100% = 140%.

    Hence it is a 140% INCREASE.

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multiplying by 100% = 36/66 × 100% = 0.545454... ×100% ≈ 54.5%

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Helpful?

     



4 0
3 years ago
Can someone please help me answer these questions that are attached to the paper and the steps? Thanks in advance!!
Svetach [21]
Do lulus way. If you change the angles, you will not have a pentagon anymore. If you subtract, it wouldn’t be the same ratio:)
8 0
3 years ago
Use distributive property to rewrite <br><br> 1. 4(x + 9) <br><br> 2. 3 (-2x + 4)
Kobotan [32]

1. 4x+36

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8 0
3 years ago
15% 40% as whole numbers
Alex17521 [72]

Answer: Not possible

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3 0
3 years ago
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