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trapecia [35]
3 years ago
12

1)4(x– 12) + 19 = -89 2)7+5(x-2)=12 3)-4x-2(2x+10)=-116 4)2(x+9)-4=68

Mathematics
1 answer:
Contact [7]3 years ago
7 0

Answer:

1. -24

Step-by-step explanation:

4x - 12+19= - 89

4x= - 89-19+12

4x=-96

X= -24

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The length of each side of a triangle is increased by 30%. By what percentage is the area increased?
patriot [66]

Answer:

When sides are doubled, the area of new triangle will always be 4 times the original, the change in area will be 3 times. Hence the % change will always be 300% irrespective of the type of triangle.

Step-by-step explanation:


5 0
3 years ago
Please help me it says What kind of triangle makes the Pythagorean theorem true?what angle does it need to have?
Levart [38]
<h3>Answer:</h3>

right triangle

<h3>Step-by-step explanation:</h3>

The sides of a right triangle in a simple way, so that if the lengths of any two sides are known the length of the third side can be found.

hope it helps.

8 0
3 years ago
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lukranit [14]
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3 0
3 years ago
Y=-2х - 4 y=x - 5 how many solutions does this have​
spayn [35]

Answer:

one solution

Step-by-step explanation:

-2x - 4 = x - 5

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y = 1/3 - 5

y = 1/3 - 15/3

y = -14/3

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5 0
3 years ago
HELP ME PLEASE!!!!<br> ΔAXY ~ ΔABC. What is the value of BC
emmasim [6.3K]

Answer:

BC = 28 \frac{1}{3} ft

Step-by-step explanation:

Given that the triangles are similar then the ratios of corresponding sides are equal, that is

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\frac{12}{20} = \frac{17}{BC} ( cross- multiply )

12BC = 340 ( divide both sides by 12 )

BC = \frac{340}{12} = \frac{85}{3} = 28 \frac{1}{3}

6 0
3 years ago
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