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velikii [3]
3 years ago
6

If 2(x+y)=z, then 2x+2y=z distributive property substitution property multiplication property symmetric property

Mathematics
1 answer:
Alina [70]3 years ago
4 0
So right because I looked it up and went in my math book
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PLEASEEE help with these multiple choice answers, will mark brainliest !!
12345 [234]

Answer:

B. −x^2+2x+4

Step-by-step explanation:

(f-g)(x)

fx - g=

6x^2+4x−7−2x−7x^2+11

=6x^2+4x+−7+−2x+−7x^2+11

Combine Like Terms:

=6x^2+4x+−7+−2x+−7x^2+11

=(6x^2+−7x^2)+(4x+−2x)+(−7+11)

=−x^2+2x+4

6 0
2 years ago
Read 2 more answers
Lin's family has completed 90% of a trip. They have traveled 45 miles. How far is the trip?
Lina20 [59]

Answer:

50 miles

Step-by-step explanation:

90% completed (in percentage)

45 mi completed (in miles)

Thus, we can say:

45 is 90% of what number??

This "what number" is the total (what we are trying to find). Now, we let this "what number" part be equal to "x". Also, we know "IS" means "=" and "OF" means "*". Thus we can write:

45 is 90% of what number??

45 = 90% * x

90% converted to decimal is:

90/100 = 0.9

Thus, the equation becomes:

45=0.9x

Solving for x:

45=0.9x\\x=\frac{45}{0.9}\\x=50

The trip is 50 miles

3 0
3 years ago
Read 2 more answers
PLS HELP PLSSSSSSSSSSSSSSSSSSSSSS
Sergio [31]

Answer: b

Step-by-step explanation: because its 50/50

7 0
3 years ago
Which expression has both 8 and n as factors
jek_recluse [69]
I do not understand the answer because it is incomplete
4 0
4 years ago
Here is an inequality: -3x > 18 list some values for x that would make this inequality true
Sergio039 [100]

Step-by-step explanation: First, we need to solve this inequality.

When you're asked to solve an inequality like -3x > 18, your goal should be the same as it was when solving equations, to get <em>x</em> by itself on one side.

In this problem since <em>x</em> is being multiplied by -3 on the left side of the inequality, to get <em>x</em> by itself, we divide both sides by -3 but here is the rule you have to watch out for when solving inequalities.

When you divide both sides of an inequality by a negative number, you must switch the direction of the inequality sign. So this greater than in our original problem becomes less than in our second step.

On the left side, the -3's cancel and we're left with

<em>x</em> and on the right side, 18 divided by -3 is -6.

So we have x < -6.

Now, we are asked to state some solutions to the inequality.

The inequality x < -6 means that any number

less than -6 is a solution to the inequality.

For example, -7 is a solution because -7 is less than -6.

-8 is also a solution because -8 is less than -6.

Other possible solutions include -23, -98, -982, and so on.

Any number less than -6 will be a solution.

6 0
3 years ago
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