3 years ago

Solve for x: -12+x=-5 A) 7 B) -7 C) 17 D) -17

1 answer:

5 0

The answer is A since -12 is added on both sides. And when adding with negatives you ALWAYS take the sign of the bigger number :)

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Solve for x.

TiliK225 [7]

Answer:

x=47

Step-by-step explanation:

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1 year ago

Andrea gets a monthly allowance. She first spends a fourth of her money on Target. Then, she spends $5 on food. She has $12 left

motikmotik

Answer:

Step-by-step explanation:

12 + 5 = 17

17 x 4 = 68

Andrea's monthly allowance is $68.

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2 years ago

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Select all numbers that have an absolute value of 6.3.

miv72 [106K]

Answer:

6.3 & -6.3

Step-by-step explanation:

6.3 is the same as -6.3, hope this helps

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2 years ago

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Identify the solution set for: −2|−2x−4|=−12

myrzilka [38]

Answer:

C: {−5, 1)

Step-by-step explanation:

Starting with −2|−2x−4|=−12, divide both sides by -2:

|−2x−4| = 6

Reduce this by dividing all terms by 2:

|-x - 2| = 3

This is equivalent to x + 2 = 3 and x + 2 = - 3

Solving thse two equations, we get x = 1 and x = -5

And so the solution set is C: {−5, 1)

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2 years ago

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The pennant below is in the shape of an isosceles triangle. Determine and state the length of the base.

VladimirAG [237]

Answer:

C. 10

Step-by-step explanation:

we know that

The height of an isosceles triangle divide the triangle into two equal right triangles.

Applying the Pythagorean Theorem at one triangle

$13^2=(x+7)^2+(2x/2)^2$

solve for x

$169=x^2+14x+49+x^2$

$2x^2+14x-120=0$

solve the quadratic equation by graphing

using a graphing tool

The solution is x=5

see the attached figure

therefore

The length of the base is

$2(5)=10\ units$

8 0

3 years ago