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Crazy boy [7]
2 years ago
5

Whoch expression is equivalent to -20 - (-4)​

Mathematics
2 answers:
dangina [55]2 years ago
5 0

Answer:

D

Step-by-step explanation:

-(-4)=+4

so it is -20+4

Setler [38]2 years ago
4 0

Answer:

D) -20 + 4 is the answer.

Step-by-step explanation:

1) Record the terms .

4 - 20

2) Use this rule: a - b = -(b - a)

- (20 - 4)

3) Use algorithm method.

(see the attached picture)

4) After simplifying, we have:

-(20 - 4) =  - 16

5) therefor, -20 + 4 = -16

- 16

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Will give brainliest answer
dlinn [17]
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3 0
2 years ago
Find an equation of the line. Write the equation in function notation. Through (6,-1); perpendicular to 9y=x-18
docker41 [41]
The first step is to find the slope of the given line by putting its equation in the form y = mx + b.
9y = x - 18
Dividing both sides by 9, gives:
y = (x/9) - 2
The slope of the given line is therefore 1/9.
Let the slope of the perpendicular line be m.
The product of the two slopes must equal -1 for the lines to be perpendicular.
m\times\frac{1}{9}=-1
Therefore m = -9.
At this stage the equation of the required line is y = -9x + b.
Now we need to find the value of b.
Plugging the given values of a point on the line (6, -1) into the equation gives:
-1 = -54 + b; from which b = 53.
The required equation for the line is:
f(x) = -9x + 53.
8 0
3 years ago
3(x+2)=2(x+5) find the solution
ankoles [38]

Answer:

x=4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3(x+2)=2(x+5)

(3)(x)+(3)(2)=(2)(x)+(2)(5)(Distribute)

3x+6=2x+10

Step 2: Subtract 2x from both sides.

3x+6−2x=2x+10−2x

x+6=10

Step 3: Subtract 6 from both sides.

x+6−6=10−6

x=4

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2 years ago
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thus answers.hooe it's right

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Dmitriy789 [7]

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Step-by-step explanation:

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2 years ago
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