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Mariana [72]
3 years ago
10

Scale factors and it so hard i dont no what to do

Mathematics
1 answer:
beks73 [17]3 years ago
7 0

Answer:

D:

Step-by-step explanation:

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A triangle has sides with lengths of 64 kilometers, 80 kilometers, and 51 kilometers. Is it a right triangle?
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*A triangle has sides 42, 4x, and 2x−6. What is the possible range of x?
scoray [572]

Answer:

<h2>The Possible range for x is : ]8 , 18[</h2>

Step-by-step explanation:

To can draw this triangle if:

4x - (2x - 6) < 42 < 4x + (2x - 6)

solve inequality 1 :

4x - (2x - 6) < 42 ⇔ 2x + 6 < 42 ⇔ 2x < 36 ⇔ x < 18 (1)

Solve inequality 2 :

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from (1) and (2) we deduce that : 8 < x < 18

3 0
3 years ago
What is the solution to the compound inequality 5x + 7 ≤ −8 or 3x + 7 &gt; 19?
Korvikt [17]

5x + 7 ≤ −8                        or                     3x + 7 > 19

5x  ≤ - 15                            or                          3x > 12

 x ≤ - 3                              or                             x > 4

Answer

 x ≤ - 3    or   x > 4

8 0
3 years ago
What is the degree measure of f?.<br> A) 56° <br> B) 58° <br> C) 60° <br> D) 64°
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3 years ago
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