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crimeas [40]
3 years ago
13

Find the value of expression the a3−3a2+5a−7 by substituting a=3.

Mathematics
1 answer:
8090 [49]3 years ago
6 0

Answer:

21 is answer

Step-by-step explanation:

Find the value of expression the a3−3a2+5a−7 by substituting a=3.

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The shape below is a composite figure made up of two rectangular prisms, what is the volume of the figure?
gregori [183]

Answer:

<u>11098 cm³</u>

Step-by-step explanation:

<u>Volume of top prism</u>

  • V = 62 x 3 x (13 - 7)
  • V = 186 x 6
  • V = 1116 cm³

<u>Volume of bottom prism</u>

  • V = 62 x 23 x 7
  • V = 1426 x 7
  • V = 9982 cm³

⇒ Total volume = Volume (top) + Volume (bottom)

⇒ Total volume = 1116 + 9982

⇒ Total volume = <u>11098 cm³</u>

5 0
2 years ago
Read 2 more answers
Evaluate the expression for K=-16,m=-22,and n=-23.k+m+n
lys-0071 [83]

Answer:

-16-22-23= -61

Step-by-step explanation:

Hope it was helpful .

4 0
3 years ago
10 Points<br> Can someone explain to me how to solve this
tatyana61 [14]

Answer:

d he didn't make a mistake

Step-by-step explanation:

so when is says comparing to one it means is the fraction greater than less than or equal to one and because 3/4 is less than one and 9/8 is greater than then 3/4 is less than 9/8 remember it always opens up to the larger number

8 0
3 years ago
Question 8, thanks guys
Natasha2012 [34]

Answer:

B.

Step-by-step explanation:

Use the multiplication table of 12 and find that 5x12=60. Answer B is the only one that has that.

5 0
3 years ago
Read 2 more answers
Can i please get some help here its math
LiRa [457]
X is 9


12x + 17 = -1 + 14x
18 = 2x
x = 9
7 0
3 years ago
Read 2 more answers
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