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Orlov [11]
3 years ago
11

Simplify the expression 4(−3b)(+a) +8ab ÷ 2a × 4a.please ans briefly

Mathematics
1 answer:
emmasim [6.3K]3 years ago
3 0

Answer:

4ab

Step-by-step explanation:

4(-3b)(+a)+8ab÷2a×4a

4(-3ab)+8ab÷2a×4a

-12ab+8ab÷2a×4a

-12ab+4b×4a

-12ab+16ab

16ab-12ab = <u>4ab</u>

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Compare the two figures. How many times bigger or smaller is the cone to
Gemiola [76]

Answer:

The proportion of the volume of the cone to the volume of the pyramid is: 3.14 times bigger.

Step-by-step explanation:

<u>Given the information of the cone: </u>

  • The height: 12 inches
  • The radius of the base is : 10/2= 5 inches

=> the volume of the cone

= 1/3πr^{2} *h

= 1/3*3.14*5^{2} *12

= 314 cubic inches

<u>Given the information of the pyramid: </u>

  • the height: 12 inches
  • The base is a suqare with a side lengh = 5 inches  

=> the volume of the pyramid:

= 1/3*Bh            (where B is the area of the base)

= 1/3*5*5*12

= 100 cubic inches

<u>The proportion of the volume of the cone to the volume of the pyramid is: </u>

= 314 /100

= 3.14 times bigger.

Hope it will find you well

3 0
3 years ago
mei has 15 oranges,9 peaches, and 18 pears. she wants to put all of the fruit into decorative baskets, what's the greats number
pashok25 [27]

Answer:

15,9,8 can be divided by 3

so, the greatest number of fruit in each basket is 3 Step-by-step explanation:

6 0
3 years ago
What is the advantage of using exponential notation?
Mila [183]
The advantage of using exponential notation is that you won't have to keep writing a long number
For example, 40,000,000,000,000 would be tedious to write over again, but using exponential notation that number would be just 4 X 10^13.
8 0
4 years ago
1. By selling an article at N600.00, a<br>trader makes a profit of 20%. Find the<br>cost price.​
pshichka [43]

Answer:

500

Step-by-step explanation:

SP = 600.00

profit= 20%

SP = CP + 20% of CP

or, 600.00 = CP + 20/100 × CP

or, 60000= 120CP

or, CP = 60000/ 120

CP = 500

3 0
3 years ago
10 − 7j + 7 = -10 − 4j<br><br><br> What is j
Elena L [17]
Add the numbers 7 + 10
17 - 7j = -10 - 4j
subtract 17 from both sides
-7j = -27 - 4j
add 4j to both sides
-3j = -27
divide both sides by -3
j = 9
7 0
3 years ago
Read 2 more answers
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