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3 years ago

Fourth grade level. Use mental math to find 7x53

Mathematics

2 answers:

vazorg [7]3 years ago

5 0

The answer is 371 hours

Stolb23 [73]3 years ago

3 0

Answer:

371

Step-by-step explanation:

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1. Solve the following equation.(MAFS.8.EE.3.7) 5(3x + 7) + 2x = 7x – 5(–2x + 9)

Ksivusya [100]

Answer:

there is no solution

Step-by-step explanation:

Expand.

15x+35+2x=7x+10x-4515x+35+2x=7x+10x−45

2 Simplify 15x+35+2x15x+35+2x to 17x+3517x+35.

17x+35=7x+10x-4517x+35=7x+10x−45

3 Simplify 7x+10x-457x+10x−45 to 17x-4517x−45.

17x+35=17x-4517x+35=17x−45

4 Cancel 17x17x on both sides.

35=-4535=−45

5 Since 35=-4535=−45 is false, there is no solution.

No Solution

4 0

3 years ago

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Are the following geomatric sequence if so fin the common ratio 3-12,48-192

viva [34]

Answer:

1 : 4 , 1 : 4

Step-by-step explanation:

= 3 : 12 , 48 : 192

= 3/12 , 48/192

= 1/4 , 1/4

= 1 : 4 , 1 : 4

YOUR ANSWER READY

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6 0

3 years ago

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Please Help Best answer gets brainliest first answer gets five stars

Brrunno [24]

Hi,

(1/4)^−2−(5^0)(2)(1^−1)

=16−(5^0)(2)(1^−1)

=16−(1)(2)(1^−1)

=16−2(1^−1)

=16−(2)(1)

=16−2

=14

Have a great day!

4 0

4 years ago

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Will get branliest!!!!!!!

lawyer [7]

Answer:

It has the same domain as the function $f(x)=-\sqrt{-x}$

Step-by-step explanation:

we have

$f(x)=\sqrt{-x}$

we know that

The radicand cannot be a negative number

$-x\geq 0$

Solve for x

Multiply by -1 both sides

$x\leq 0$

The domain of the given function is the interval ----> (-∞,0]

All real numbers less than or equal to 0

The range of the given function is the interval ----> [0,∞)

All real numbers greater than or equal to zero

Verify each statement

Part 1) It has the same domain as the function $f(x)=-\sqrt{-x}$

The statement is true

The domain of the function $f(x)=-\sqrt{-x}$ is

the interval ---> (-∞,0]

Part 2) It has the same range as the function $f(x)=-\sqrt{-x}$

The statement is false

The range of the function $f(x)=-\sqrt{-x}$ is

the interval ---> (-∞,0]

Part 3) It has the same domain as the function $f(x)=-\sqrt{x}$

The statement is false

The domain of the function $f(x)=-\sqrt{x}$ is

the interval ---> [0,∞)

Part 4) It has the same range as the function $f(x)=-\sqrt{x}$

The statement is false

The range of the function $f(x)=-\sqrt{x}$ is

the interval ---> (-∞,0]

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3 years ago

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Evaluate. 12−(9−2)+3⋅6 23 24 48 I don't know.

son4ous [18]

Step-by-step explanation:

The answer is in the pic above

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3 years ago

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