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3 years ago

Can someone please help me .?

Mathematics

1 answer:

MariettaO [177]3 years ago

4 0

Answer:

Step-by-step explanation:

5+7

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What is the solution set for the quadratic equation x squared - 16 equals 0

insens350 [35]

$x^2-16=0 \\\\ (x-4)(x+4)=0 \\\\\\ \#1 \\\\ x+4=0 \\\\ \boxed{x=-4} \\\\ \#2 \\\\ x-4=0 \\\\ \boxed{x=4} \\\\\\ \boxed{\boxed{S=\{ -4;4 \}}}$

8 0

3 years ago

Read 2 more answers

−(14w+8)+8=3

ollegr [7]

Hello!

let's make the following solution:

$- (14w + 8) + 8 = 3$

we eliminate the parentheses and change the signs

$- 14w - 8 + 8 = 3$

we eliminate the opposite numbers

$- 14w - \diagup\!\!\!\!8 + \diagup\!\!\!\!8 = 3$

so:

$- 14w = 3\;\:(simplify\:by\:-1)$

$14w = -3$

$\boxed{\boxed{w = -\frac{3}{14}}}\end{array}}\qquad\checkmark$

ps: the answer is correct, the question was poorly worked out with the wrong feedback.

__________________________

I Hope this helps, greetings ... DexteR! =)

5 0

3 years ago

Lamar works as a tutor for $12 an hour and as a waiter for $14 an hour. This month, he worked a combined total of 100 hours at h

alexdok [17]

Answer:

-2t + 1400

Step-by-step explanation:

If t represents the number of hours Lamar worked as a tutor, the number of hours he worked as a waiter can be represented by 100 - t.

Create an equation to represent the situation:

12t + 14(100 - t) = total earned

Simplify:

12t + 1400 - 14t = total earned

-2t + 1400 = total earned

So, the expression for the amount he earned is -2t + 1400

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3 years ago

The venue is preparing for a fashion show in the auditorium. Blue carpet divides the large floor into two sections. The length o

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Answer:

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Step-by-step explanation:

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2 years ago

Write a real world problem for the equation y=3/5x+100

ser-zykov [4K]

Answer:

is this for a test?

Step-by-step explanation:

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3 years ago