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4 years ago

PLEASE HELP ME!! 12 points and brainliest!!!!!!

2 answers:

6 0

What you want to do is get x alone. So, divide both sides by -1/2 so x is alone. -12 divided by -1/2 is 24. Since this is an inequality you have to flip over your inequality sign when multiplying or dividing by a negative so your answer is now x>24

Crank4 years ago

6 0

X<24
12(24)=12
so x must be ANYTHING less than 24

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Type the correct answer in each box. Consider the expressions shown below.

bekas [8.4K]

<h2>Hello!</h2>

The answer is:

- The first operation match with the polynomial:

B. $9x^{2} -2x+2$

- The second operation match with the polynomial:

A. $-9x^{2}-2x+7$

- The third operation match with the polynomial:

C. $9x^{2} +2x-7$

In order to solve the given operations, we need to group the like terms.

Remember, like terms are terms that share the same variable and the same exponent.

For example:

$x^{2} +2x^{2} +3x^{3} +2=3x^{2} +3x^{3} +2$

We only operate with the variables that shares the same exponent.

Also, we need to remember the distributive property:

$(a+b)(c+d)=ac+ad+bc+bd$

So, we are given the following polynomials:

$A.9x^{2} -2x+7\\\\B. 9x^{2} -2x+2\\\\C. 9x^{2} +2x-7$

And we need to perform the following operations:

First operation,

$(7x^{2}-5x+3)+(2x^{2} +3x-1)=7x^{2} +2x^{2} -5x+3x+3-1\\\\7x^{2} +2x^{2} -5x+3x+3-1=9x^{2} -2x+2$

So, the first operation match with the polynomial:

B. $9x^{2} -2x+2$

Second operation,

$(3x^{2}-4x-4)+(-12x^{2}+2x+11)=3x^{2} -12x^{2} -4x+2x-4+11\\\\3x^{2} -12x^{2} -4x+2x-4+11=-9x^{2}-2x+7$

So, the second operation match with the polynomial:

A. $-9x^{2}-2x+7$

Third operation,

$(4x^{2} -3x-9)+(5x^{2} +5x+2)=4x^{2}+5x^{2} -3x+5x-9+2\\\\4x^{2}+5x^{2} -3x+5x-9+2=9x^{2} +2x-7$

So, the second operation match with the polynomial:

C. $9x^{2} +2x-7$

Have a nice day!

7 0

3 years ago

Read 2 more answers

The cost of 3 pizzas and 4 sandwiches at Ralph's Deli is $68. The cost of 3 pizzas and 7 sandwiches is $92. What is the cost of

hodyreva [135]

Pizza is 12. Sandwich is 8. Total for both is 20.
92-68=24
24/3=8
8*4=32
68-32=36
36/3=12

8 0

3 years ago

What is the missing term of ..9, __ , 19

VARVARA [1.3K]

Answer:

The answer could be anything, but if it's an arithmetical sequence, then it's 14.

Step-by-step explanation:

I'm assuming that the added numbers always stay the same, meaning it's linear. If you add 5 to 9, you get 14. If you add 5 again, you get 19. Another way of doing this is (19-9)/2 = 5, then 9+5=14.

6 0

3 years ago

a food truck sells salads for 6.50 each and drinks for 2.00 each. The food truck's revenue from selling a total of 209 salads an

kati45 [8]

S+d=209
d=209-s
6.5s+2d=836.5
6.5s+2(209-s)=836.5
6.5s+418-2s=836.5
4.5s+418=836.5
4.5s=418.5
s=93

There were 93 salads sold that day.

4 0

3 years ago

Please help ALEKS!!!! MIDDLE SCHOOL LEVEL

valina [46]

Answer:

it should be about 60 degrees

4 0

3 years ago

Read 2 more answers