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gogolik [260]
3 years ago
8

What values of x make the (x-2)(x+7) expression negative

Mathematics
1 answer:
Sergio039 [100]3 years ago
5 0

Answer:

One number that works is 1.

Step-by-step explanation:

(1-2)(1+7)

-1(1+7)

-1*8

-8

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5x-4y+-13 and 3x-4y+-11
drek231 [11]
5x + -4y = 13

Solving
-5x + -4y = 13

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '4y' to each side of the equation.
-5x + -4y + 4y = 13 + 4y

Combine like terms: -4y + 4y = 0
-5x + 0 = 13 + 4y
-5x = 13 + 4y

Divide each side by '-5'.
x = -2.6 + -0.8y

Simplifying
x = -2.6 + -0.8y
Simplifying
3x + -4y + -11 = 0

Reorder the terms:
-11 + 3x + -4y = 0

Solving
-11 + 3x + -4y = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '11' to each side of the equation.
-11 + 3x + 11 + -4y = 0 + 11

Reorder the terms:
-11 + 11 + 3x + -4y = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 3x + -4y = 0 + 11
3x + -4y = 0 + 11Combine like terms: 0 + 11 = 11
3x + -4y = 11

Add '4y' to each side of the equation.
3x + -4y + 4y = 11 + 4y

Combine like terms: -4y + 4y = 0
3x + 0 = 11 + 4y
3x = 11 + 4y

Divide each side by '3'.
x = 3.666666667 + 1.333333333y

Simplifying
x = 3.666666667 + 1.333333333y
3 0
3 years ago
Read 2 more answers
Which equations represent the line that is parallel to 3x − 4y = 7 and passes through the point (−4, −2)? Check all that apply.
olga55 [171]
You plug in the point into each equation to see if the answer comes out equal. Such as the first one, so you have y=-3/4x+1. So you plug in the -4 for the x then plug in the -2 for y. So you get -2=1.1875, as you see both sides don't add up. As you progress in Algebra I'm guessing that you're in, you'll progress as the year goes on. So your answers are 3x-4y=-4 and y+2=3/4(x+4). 
4 0
3 years ago
Read 2 more answers
Is 2.95 less than 2.949
BabaBlast [244]
It is equal when you round it off.
7 0
3 years ago
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Verifying Properties of logarithms In Exercise,use a graphing utility to verify that the functions are equivalent for x > 0.
skad [1K]

Answer:

Considering the Product and the Power rule of the Logarithms, they're both equivalent for x >0

Step-by-step explanation:

1) Considering the Product and the Power rule of the Logarithms:

\\log_{c}(ab)=log_{c}a+log_{c}b

\\log_{c}a^{b}=blog_{c}

2) Therefore we can say that:

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3 0
3 years ago
What Inequality is shown by the graph?
natali 33 [55]

Answer:(2,2) I don’t know

Step-by-step explanation:

7 0
3 years ago
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