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Cerrena [4.2K]
3 years ago
8

When solving −2a≥10, you must flip the inequality sign to solve for a. true or false

Mathematics
2 answers:
exis [7]3 years ago
6 0

Answer:

it is true because you would divide by a negative

trapecia [35]3 years ago
4 0
True because it just is my teacher just went over this in class
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Am I doing this right!
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16 thru 23 look wrong and 16 is absolutely wrong. You use this:https://www.mathpapa.com/algebra-calculator.html  to work out the answers and it shows the steps and explains it to you better than I could. Good luck

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Please help me with this!!!
MrMuchimi

Answer:

yea

Step-by-step explanation:

4 0
3 years ago
a neophyte is a beginner. on the first day of classes, 28,000 students arrived at the university campus. if three-sevenths were
navik [9.2K]

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16 ,000  students are not neophytes.

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3 years ago
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Solve. Use models to help you.
oksian1 [2.3K]

Answer:

3.38

Step-by-step explanation:

x + y + z = 16.9

x = 2y

y = z

y=y

2y (x) + y(y) + y(z) = 16.0

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4 0
3 years ago
The line l with equation x - 2y + 2 = 0 crosses the y-axis at the point P. The line
Sauron [17]

Answer:

Area of ΔPQR is 28 units²

Step-by-step explanation:

-P is the point with coordinates ( 0, y-intercept for line x-2y+2 =0)

-rearrange the equation in the point-slope form y=mx+b  to find the y coordinate of the point P( 0, b)

x-2y+2 = 0, subtract x and 2 from both sides

-2y = -x-2, divide by -2 both sides

y= (1/2)x +1 so b=1 and P (0, 1)

-Q  is the point with coordinates ( 0, y-intercept for line 3x+y -15 =0)

-rearrange the equation in the point-slope form y=mx+b  to find the y coordinate of the point Q( 0, b)

3x +y -15 =0, subtract 3x and add 15 to both sides

y= -3x +15 so b=15 and Q(0,15)

-R is the intersection of the two lines so is the solution of the system of equations y= (1/2)x +1 and y= -3x +15

(1/2)x +1 =  -3x +15, add 3x and subtract1

(1/2) x+3x = 15-1, combine like terms

(7/2)x = 14 , multiply both sides by 2

7x = 28, divide both sides by 7

x= 4

y= (1/2)x +1 = (4/2) +1 =3 so R(4,3)

- the area of ΔPQR is (base *height)/2

base= 15-1= 14

height = 4

A= (14*4)/2 = 14*2 = 28

6 0
2 years ago
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