MATHEMATICS HIGH SCHOOL

PLEASEEE ITS EASY ALGEBRA 1 ):

Answers

Answer 1

Answer:

Answer:

6, 7, and 8

Step-by-step explanation:

2x/3 + 7 > 11

Subtract 7 from both sides

2x/3 > 4

Multiply both sides by 3

2x > 12

Divide both sides by 2

x > 6

6, 7, and 8 are the ones that work

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Which of the following is the surface area of the right cylinder below?height 2
radius 9

A. 174 units2
B. 187 units2
C. 198 units2
D. 162 units2

Answers

The lateral area of a cylinder (i.e. without the bottom and top lids) is 2πrh = 2π(9)(2) = 36π

The area of the two lids is 2[π(r^2)] = 162π

The sum is: 36π + 162π = 198π

I guess the answers included π but you couldn't type it.

Answer: The surface area of right cylinder is $198\pi \text{ units}^2$

Step-by-step explanation:

To calculate the total surface area of cylinder, we use the formula:

$\text{Total surface area of cylinder}=2\pi r(r+h)$

where,

r = radius of cylinder = 9 units

h = height of the cylinder = 2 units

Putting values in above equation, we get:

$\text{Total surface area of cylinder}=2\pi * 9(9+2)\n\n\text{Total surface area of cylinder}=2\pi * 9* 11\n\n\text{Total surface area of cylinder}=198\pi \text{ units}^2$

Hence, the surface area of right cylinder is $198\pi \text{ units}^2$

Two numbers are in the ratio 3:2. If the smaller number is 24, find the larger number

Answers

3:2
3x - first number
2x - second number

2x = 24 / : 2
x = 12

3*12 = 36

answer: the larger number is 36.

Answer:

Step-by-step explanation:

Find two supplementary angels such that the measure of the first angle is 38° less than three times the measure of the second

Answers

angle 1+ angle 2=180 supplementary angles add up to 180

angle 2=x assign angle a variable

angle 1= 3x-38 find equation for first angle

3x+x-38=180 set both angles added together equal to 180

4x-38=180 combine like terms

4x=218 add 38 to both sides

x=54.5 divide by 4

angle 2= 54.5

angle 2= (3x54.5)-38 plug back in and solve

angle 1= 125.5

3x-38
x-2nd angle

3x-38+x=180
4x-38=180
4x=218
x=54.5

First angle
3(54.5)-38
163.5-38
125.5

The sum of 6 consecutive even numbers is 126.what is the fourth number in this sequence

Answers

This can be put into a formula like so:

Since they are 6 consecutive even numbers, they will alternate odd/even/odd/even.

x, x+2, x+4, x+6, x+8, x+10 = 126

Simplify

6x + 30 = 126

6x = 96

x = 16

And you want the fourth number, so plug the x value back into the equation of 'x+6' and you will get 16+6 which = 22.

Answer:

Step-by-step explanation:

x+x+2+x+4+x+6+x+10

126

x=16

16+6=22

Which equation matches the graph of the greatest integer function given below?

Answers

where are the graphs?

What is the domain of the relation {(2, 8), (0, 8), (–1, 5), (–1, 3), (–2, 3)}?

Answers

Hello,

dom f={-2,-1,0,2}
Range={3,5,8}