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3 years ago

4(x)+6+3+7=17 what does x equal

Mathematics

1 answer:

levacccp [35]3 years ago

7 0

Multiply the bracket by 4

4(x)+6+3+7= 17

4x+6+10=17

4x+16= 17

4x+16-16= 17-16

4x= 1

divide by 4 for 4x and 1

4x/4= 1/4

x= 1/4 or in decimal form , x= 0.25

Check answers by using substitution method:

4(1/4)+6+3+7= 17

1+9+7= 17

17= 17

Answers can be x= 1/4 or x= 0.25

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3 years ago

What is the solution to the inequality 7<=-3x-4

kipiarov [429]

Answer:

The nearest option is -3 (negative 3)

So, Option B is correct.

Step-by-step explanation:

We need to solve the inequality $7 \leq -3x-4$

Solving:

Step 1: Switching sides of inequality and reversing the inequality

$-3x-4\geq 7$

Step 2: Adding 4 on both sides

$-3x-4+4\geq 7+4\\-3x\geq 11$

Step 3: Dividing both sides by -3 and reversing the inequality

$\frac{-3x}{-3}\leq \frac{11}{-3} \\x\leq -3.6\\$

The nearest option is -3 (negative 3)

So, Option B is correct.

4 0

3 years ago

55 points see attachment below

Ludmilka [50]

Answer:

f(3) = -20

Step-by-step explanation:

To find the value of a function, substitute the number for the variable and do the arithmetic.

f(x) = -2x^2 +x -5 . . . . . . given

f(3) = -2(3^2) +(3) -5 . . . . function value for x = 3

f(3) = -2(9) +3 -5 = -18 +3 -5

f(3) = -20

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2 years ago

Answer these true or false questions:

stepan [7]

Sometimes it helps to put a number line in front of you. If one number is to the left of the other number on the number line, it's a lower number. If one number is to the right of the other number on the number line, it is greater.

-5 -4 -3 -2 -1 0 1 2 3 4 5

4 is a solution of x<-5
FALSE: 4 is not greater than -5

-3 is a solution of y>-2
FALSE: -3 is not greater than -2

y≤3 includes 3 as a possible solution
TRUE: 3 is less than OR EQUAL to 3

Hope this helps! :)

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2 years ago

When the center of Earth is 3.8 × 105 kilometers from the center of the moon, the force of gravity between Earth and the moon is

kow [346]

I think the answer to you question is 35 i might be wrong tho but it may work.

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3 years ago