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Kaylis [27]
3 years ago
5

Need help on all please​

Mathematics
1 answer:
kipiarov [429]3 years ago
8 0

#1: 7

#2: 55

#3: 15

#4: 3

#5: 12

#6: 27

#7: 11

#8: 27

#9: 14

#10: 6

#11: 9

#12: 28

#13: 12

#14: 30

#15: 45

#16: 6

#17: 14

#18: 9

#19: 54

#20: 8

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Which of the following statement is true?
Natasha_Volkova [10]

Answer:

C is correct

Step-by-step explanation:

10x³+2x²+0x-11

+0x³+9x²+2x-2

=10x³+11x²+2x-13

7 0
3 years ago
Which of the following is a possible unit for the volume of a cone?
mash [69]

Possible unit is m³

<u>Step-by-step explanation:</u>

  • The possible unit for volume of a cone is m³
  • Volume of a cone = Base area × Height
  • Here unit for volume will be square units and that of height will be in units. Together, they form cubic units.
  • In the given options, the only unit that is in cubic form is m³
8 0
3 years ago
Which of the following best describes the slope of the line below?
atroni [7]

Answer:

Zero

Step-by-step explanation:

Since the line is a horizontal line, the slope does not change.  The slope is zero.

8 0
2 years ago
Read 2 more answers
Simplify completely
Mandarinka [93]

Answer: x+2 / x+ 9, x = -2, x=-9   ( A )

Solution:

Breakdown the problem into two sets

Step 1:  simplify x^2 -10x - 24

Factorize the above equation,

Multiply the last term (24) with the first term coefficient i.e. 1

Step 2: Then, find the factors of 24 in a way that when you add or subtract it sums up to 10

x2 - 12x + 2x - 24  >>>>  (x2-12x) + (2x-24) >>> take common

>>>> x(x-12) + 2( x-12)

Step 3:   (x + 2)  (x - 12)

Step 4: Step 1:  simplify x^2 - 3x - 108 using the same steps

x2 - 12x + 9x - 108 >>>>  take common x(x-12) + 9 ( x -12) >>>

(x + 9)  (x - 12) final product

Now, Simplify the equation as a whole

 (x + 2)  (x - 12) /  (x + 9)  (x - 12)                         Note:  (x - 12) cancels out  

=  (x + 2) /  (x + 9)     with x= -2 and x= -9

6 0
3 years ago
The area of parallelogram is 60 ft2.The height is 5ft. How long is the base?
Lubov Fominskaja [6]

Answer:

b = 12 ft

Step-by-step explanation:

Given Data:

Height = h = 5 ft

Area = A = 60 ft^{2}  

To Find Out:

base = b =?

Formula:

A= b×h

b = A÷h

Solution:

b = A÷h

b = 60÷5

b = 12 ft

8 0
3 years ago
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