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kenny6666 [7]
3 years ago
14

Item 1 Evaluate 2xy when x=−14 and y=3 . explain your answer

Mathematics
2 answers:
meriva3 years ago
8 0

2xy

2(-14)(3)

-28*3

-84

juin [17]3 years ago
6 0

Answer:

-84

Step-by-step explanation:

We have been given an expression 2xy. We are asked to evaluate our given expression, when x=-14 and y=3.

Upon substituting x=-14 and y=3 in our given expression, we will get:

2(-14)(3)

6(-14)

-84

Therefore, the value of our expression at given values is -84.

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I need help with this problem?
Cerrena [4.2K]

Answer:

Step-by-step explanation:

Volume of cylinder:

\boxed{\text{Volume of cylinder=$\pi r^{2}h$}}

<u>Bottom cylinder:</u>

1 inch = 2.54 cm

 diameter = 14 in

r = 14/2 = 7 in

r = 7 *2.54 = 17.78 cm

h = 4 in = 4*2.54 = 10.16 cm

Volume = 3* 17.78 * 17.78 * 10.16

             = 9635.59 in³

<u>Upper cylinder:</u>

diameter = 12 in

r = 12/2 = 6in

r = 6*2.54 = 15.24 cm

h = 12 in = 12*2.54 = 30.48 cm

Volume = 3 * 15.24 *15.24 * 30.48

             = 21237.63 in³

Volume of the object = 9635.59 + 21237.63                  

                                     = 30873 cm³

3 0
2 years ago
What 15 by 15 I need to know!!
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7 0
3 years ago
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Which inequality represents the graph?
Pie

Answer: z _> -10

Step-by-step explanation:

6 0
2 years ago
4x = 37<br><br><br> 311<br><br><br><br> 127<br><br><br><br> 77<br><br><br><br> 328
ioda
4×77. 75=311
4×31. 75=127
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6 0
3 years ago
Select the correct answer from each drop-down menu. y = x2 + 2x − 1 y − 3x = 5 The pair of points representing the solution set
katen-ka-za [31]

ANSWER

(-2,-1)

(3,14)

EXPLANATION

The given system is

y =  {x}^{2}  + 2x - 1

y - 3x = 5

or

y = 3x + 5

Equate both of them:

{x}^{2}  + 2x - 1 = 3x + 5

This implies that,

{x}^{2}   - x - 6 = 0

(x - 3)(x + 2) = 0

x=-2 or x=3

When x=-2, y=y=3(-2)+5=-1

(-2,-1) is a solution.

When x=3 , y=3(3)+5=14

(3,14) is also a solution.

7 0
3 years ago
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