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zloy xaker [14]
3 years ago
8

Multiply and simplify: 3a(4a2 – 5a + 12)

Mathematics
1 answer:
DochEvi [55]3 years ago
3 0
3a(4a²-5a+12)

12a³-15a²+36a

~Hope this helped!~
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Which one is right please explain
Kitty [74]
The correct answer would be B. Hope this helps, and please mark me the brainliest, we can be friends!!
5 0
3 years ago
Vinny decorated 72 cookies and 36 minutes how many cookies did you decorate per minute
SCORPION-xisa [38]
2 cookies. 72/36= 2 cookies per minute. 
6 0
3 years ago
The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters.
puteri [66]

Answer:

volume = 13500 cm^{3}

Step-by-step explanation:

For a given pyramid, its volume can be determined by:

volume of pyramid = \frac{lwh}{3}

Where: l is the base length, w is the base width and h id the height of the pyramid.

For the given question, l 30 cm, w = 30 cm and h = 45 cm.

So that,

volume = \frac{30*30*45}{3}

            = \frac{40500}{3}

            = 13500

volume = 13500 cm^{3}

The volume of the pyramid is 13500 cm^{3}.

6 0
2 years ago
What is the approximate area of the circle shown below?
Lelu [443]

Hey there!

Formula: πr^2

r = radius

pi = 3.1415926535898 (but we can say it approximately equals 3.14)

Your equation (3.14)(4.2)^2 = answer

4.2^2 = 4.2 × 4.2 = 17.64

New equation: 17.64 × 3.14 = 55.3896

We round our answer to the nearest tenth

Answer: 55.4 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

6 0
2 years ago
15. A survey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand X aspirin. How many doctors use brand X asp
belka [17]
2000 divided by 5 is 400. 400 time 3 is 1200. You could also do 2000*.6 (because .6 = 3/5)
4 0
2 years ago
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