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Serga [27]
3 years ago
13

6R + r -5r simplify each expression A.2r B.1 r + r C.0r D.7r-5r

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
5 0
A. 2r
r-5r=-4r
6r+-4r=2r
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3 x cubed equals - 375
AysviL [449]
Do you want this explained ? or the answer 
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4 years ago
Domain and range of the inequality y<√x+3 +1
Margaret [11]

The domain of the given inequality is y>1.

<h3>What is Inequality?</h3>

An inequality is a relation which makes a non-equal comparison between two numbers or other mathematical expressions.

Here, given inequality:

              y < \sqrt{x+3}+1

Related equation:

             y = \sqrt{x+3}+1

The equation defined as,

    x+3 > 0

    x > -3

In the given inequality, the sign of inequality is <, it means the points on the boundary line are not included in the solution set. Thus, -3 is not included in the domain.

So, the domain of the given inequality is x>-3.

We know that,

    \sqrt{x+3} \geq 0

adding 1 on both sides, we get

  \sqrt{x+3} + 1 \geq  1

      y ≥ 1

The points on the boundary line are not included in the solution set. Thus, 1 is not included in the range.

Thus, the domain of the given inequality is y>1.

Learn more about Inequality from:

brainly.com/question/20383699

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6 0
2 years ago
I need help! <br> Graph y= 1/2x - 3
Bingel [31]

Answer:

heres a few points you can plot (0,-3), (2,-2), (4,-1), (6,0) (8, 1)

6 0
3 years ago
Which equation is an identity?
miskamm [114]

Answer:

D

Step-by-step explanation:

To be an identity we require both sides of the equation to equate

A

8x + 9 ≠ 8x - 3 ← not an identity

B

7x - 2 = 8x + 4 - x = 7x + 4 ≠ 7x - 2 ← not an identity

C

11 - (2x + 3) = 11 - 2x - 3 = - 2x + 8 ≠ - 2x - 8 ← not an identity

D

5x + 8 - x = 6x - 2(x - 4), that is

4x + 8 = 6x - 2x + 8 = 4x + 8 ← both sides equate thus an identity

5 0
3 years ago
Hazel's backyard deck cost $76.13 per square yard to build. The deck is 7 yards wide and 11 yards long. How much did it cost to
horsena [70]
If I’m not mistaken it should be $5,862.1
4 0
3 years ago
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