3 years ago

Write an inequality for the following: all numbers less than 7 and greater than -7

Mathematics

1 answer:

dangina [55]3 years ago

7 0

-7 < x < 7
or
x > -7 , x < 7

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insens350 [35]

<h3>Therefore 24 students take a car to school. </h3>

Step-by-step explanation:

Given, Total number of students is 80.

and 30% of the total students take a car to school

30% of 80

$=\frac{30}{100}\times 80$

=24

Therefore 24 students take a car to school.

3 0

3 years ago

What is the radius of a cylinder with 490picm^3 of volume and 10 cm of height

Sholpan [36]

V = pi*r^2*h
V = 490
h = 10
490 = pi*r^2*10
r = 3.95

7 0

3 years ago

What does 4^2x-4=1 equal

Lisa [10]

Answer:

x=2

Step-by-step explanation:

4^2x-4=4^0

2x-4=0

2x=4

x=4/2

x=2

4 0

3 years ago

Read 2 more answers

Someone please help me on this question ?:)

Simora [160]

Answer:

x=-121

Step-by-step explanation:

.4(5+2x) -12 = .9x+2.1

Distribute the .4

2 + .8x -12 = .9x+2.1

Combine like terms

-10 +.8x = .9x +2.1

Subtract .8x from each side

-10 +.8x-.8x = .9x-.8x +2.1

-10 = .1x +2.1

Subtract 2.1 from each side

-10-2.1 = .1x +2.1-2.1

-12.1 = .1x

Divide by .1

-12.1/.1 = 1.x/.1

-121 =x

6 0

3 years ago

12. Write the equation of<br> the graphed line.

geniusboy [140]

Answer:

y=-2/5x+2

Step-by-step explanation:

4 0

3 years ago