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Thepotemich [5.8K]
3 years ago
12

− 3x − 30 = 5x + 18

Mathematics
1 answer:
Mariana [72]3 years ago
6 0
In the second and third line, where 3x was taken off both sides. On the left -3x-3x should have given -6x.
3x should have been added to both sides in order to cancel out the -3x
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1. Carissa also has a sink that is shaped like a half-sphere. The sink has a volume of 2000/3 π inches. One day, her sink clogge
Anettt [7]

Answer:

Yes, your answers are correct.

The volume of a cone is given by V = 1/3πr²h.  Since the diameter of the first cone is 4, the radius is 2; therefore the volume is

V = 1/3π(2²)(8) = 32π/3

We divide the volume of the sink, 2000π/3, by the volume of the cone:

2000π/3 ÷ 32π/3 = 2000π/3 × 3/32π = 6000π/96π = 62.5 ≈ 63.

The diameter of the second conical cup is 8, so the radius is 4.  The volume then is:

V = 1/3π(4²)(8) = 128π/3

Dividing the volume of the sink, 2000π/3, by 128π/3:

2000π/3 ÷ 128π/3 = 2000π/3 × 3/128π = 6000π/384π = 15.625 ≈ 16

7 0
3 years ago
I need help with this math problem plz help and plz explain your answer​
IceJOKER [234]

Answer:

34.04 cm²

Step-by-step explanation:

Formula for a trapezoid:

a + b ÷ 2 × height

Substitute the values:

11.7 + 3.1 = 14.8

14.8 ÷ 2 = 7.4

7.4 × 4.6 = 34.04

The answer is 34.04 cm²

8 0
2 years ago
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What is the measure of NMR? <br><br> 27<br> 63<br> 107<br> 117
ASHA 777 [7]
63 because both angles are the same
5 0
3 years ago
Given WRST is a parallelogram and
daser333 [38]
It would be a parallelogram 
3 0
3 years ago
Need help on my work I'm marking you the brainiest if the answer is right! hurry pleaseeeeeeee need help quick asap! helpppppppp
Elena L [17]

y<2x+2

2 is your y intercept and your slope is 2 (positive)

no or equal to so we have a positive slanted dotted line

your answer is the last one

7 0
3 years ago
Read 2 more answers
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