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2 years ago

5

The expression 7 + 2(x – 3) + 5x is simplified correctly in the correct order. Which of the steps has an incorrect justification

?
step a
step c
step d
step b

2 answers:

galben [10]2 years ago

6 0

step c should be the right answer i think

larisa86 [58]2 years ago

4 0

Answer:

it is step c

Step-by-step explanation:

7 + 2(x - 3) + 5x

= 7 + 2x - 6 + 5x

= 7 - 6 + 2x + 5x

= 1 + 7x

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How can I tell when figures are similar?

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2 years ago

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Question:<br> Image Below

konstantin123 [22]

Answer:

The answer will be: C: 2<em>t </em>+ 10

Step-by-step explanation:

You can check the answer by replacing <em>t </em>with any number.

Example:

I want to find the perimeter for 3 triangles. Here's how I would write the equation.

2(3) + 10 = 6 + 10 = 16

We can check by adding all the sides for three triangles.

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2 years ago

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UkoKoshka [18]

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Answer:

see attached for a graph

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Step-by-step explanation:

The graph has a y-intercept of -1, which is halfway between 0 and -2. It goes up 4 units (2 vertical grid spaces) for 1 unit to the right (1 horizontal grid space). It seems to cross y = 1 at about x = 1/2.

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2 years ago

Select the graph that best represents the solution set of the system of linear inequalities

Butoxors [25]

I think C
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2 years ago

If you know trig please help! Will give brainliest!

kaheart [24]

Answer:

sin^2α

Step-by-step explanation:

I will just pose x instead of alpha here to make things simpler

$\tan ^2\left(x\right)\left(2\cos ^2\left(x\right)+\sin ^2\left(x\right)-1\right)\\\\$

we know that sin^2x = 1 - cos^2x so...

$=\left(-1+1-\cos ^2\left(x\right)+2\cos ^2\left(x\right)\right)\tan ^2\left(x\right)$

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2 years ago