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tatyana61 [14]
3 years ago
14

2) 2r+8-r=-7 solve the equation

Mathematics
2 answers:
qwelly [4]3 years ago
8 0

Answer:

hii

Step-by-step explanation:

Group Like Terms

2r-r+8=-7

Add smiliar elements

r+8=-7

Subtract 8 form both sides

r+8-8=-7-8

SImplify

r=-15

Rufina [12.5K]3 years ago
3 0

Answer:

r = -15

Step-by-step explanation:

2r + 8 - r = -7

~Combine like terms

r + 8 = -7

~Subtract 8 to both sides

r = -15

Best of Luck!

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The numerator of the simplified sum is
kompoz [17]

Answer:

there is none.

Step-by-step explanation:

explanation: There is no question.

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A wheel turns 1,800 revolutions per minute. How fast does it turn in radians per second?
Flauer [41]
1800:60=30 revolutions per second
30*2π=60π radians per second
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3 years ago
What is the slope of a line perpendicular to the line whose equation is 6x+2y=−32. Fully simplify your answer.
Reika [66]

The slope of the line that is perpendicular to 6x + 2y = -32 is: 1/3.

<h3>What is the Slope of Perpendicular Lines?</h3>

The slope of two lines that are perpendicular to each other will always have a product that is equal to -1, which means that their slopes are negative reciprocals to each other.

Rewrite 6x + 2y = -32 in slope-intercept form:

2y = -6x - 32

2y/2 = -6x/2 - 32/2

y = -3x - 16

The slope is -3. Negative reciprocal of -3 is 1/3.

Therefore, the slope of the perpendicular line would be: 1/3.

Learn more about the slope of perpendicular lines on:

brainly.com/question/1362601

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5 0
1 year ago
What is linear equation?<br> What is quadratic equation?
mr_godi [17]
  • in the linear equation the greatest power of the variables is 1 for example:2X+4 this is a linear equation as the greatest power of the variable X is 1 also by drawing it in a graph you will obtain a straight line
  • while in the quadratic equation the greatest power is 2 for instance:X^2+4X-3 this is a Quadratic equation because the greatest power of the variable X is 2 also by drawing it on a graph you will obtain a parabola which is a curve "an upward curve or downward curve"

6 0
3 years ago
Read 2 more answers
Nadia plans to paint her jewelry box. The box is shaped like a rectangular prism with the dimensions
Pachacha [2.7K]

Answer:

132\ in^{2} is closest to the total surface area of the box

Step-by-step explanation:

we know that

The surface area of the box is equal to

SA=2B+PH

where

B is the area of the base

P is the perimeter of the base

H is the height of the box

we have

L=7\frac{3}{4}\ in=\frac{7*4+3}{4}=\frac{31}{4}\ in

W=3\frac{1}{4}\ in=\frac{3*4+1}{4}=\frac{13}{4}\ in

H=3\frac{7}{8}\ in=\frac{3*8+7}{8}=\frac{31}{8}\ in

<em>Find the area of the base B</em>

B=LW

B=(\frac{31}{4})(\frac{13}{4})=\frac{403}{16}\ in^{2}

<em>Find the perimeter of the base P</em>

P=2(L+W)

P=2(\frac{31}{4}+\frac{13}{4}))

P=2(\frac{44}{4})=22\ in

<em>Find the surface area</em>

SA=2(\frac{403}{16})+22(\frac{31}{8})

SA=(\frac{403}{8})+(\frac{682}{8})

SA=\frac{1,085}{8}=135.625\ in^{2}

6 0
3 years ago
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