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Mumz [18]
3 years ago
6

Simplify the expression: 15 + 3(2 + 8) - 4²

Mathematics
1 answer:
NikAS [45]3 years ago
3 0

15 + 3(2 + 8) - 4² = 15 + 3x2 + 8x3 - 4x4 = 15 + 6 + 24 - 16 = 29

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PLEASE HELP ASAP!! Will give brainliest!
Degger [83]
Hi there! 9.125 * 10^-3 is definitely less than 9.125 * 10^2, because when it comes to negative powers of 10, the numbers are decimals. 10^-3 equals 0.001 or one thousandths in word form. 10^2 is 100. When solving for the answers. 0.009125 is less than 912.5. When 912.5 is divided by 0.009125 912.5 is 100^5 or 100,000 times greater than 0.009125. The answer is that 9.125 * 10^-3 is 100,000 (100^5) times less than 9.125 * 10^2.
7 0
3 years ago
Read 2 more answers
Find the mean of x,+2,3x,-4,3x+2 and 2x​
My name is Ann [436]

Answer:

it is -1

Step-by-step explanation:

2= 410x+14⇒4x+8=10x+14   ⇒6x=−6    ⇒x=−1  

6 0
2 years ago
The height of a tree is 8.194 meters.What is the height rounded to the nearst tenth of a meter?
Elan Coil [88]
SOLUTION:

Height of tree = 8.194 metres

Height of tree = 8.2 metres ( to the nearest tenth of a metre )

Therefore, the answer is:

The height of the tree is 8.2 metres when rounded to the nearest tenth of a metre.

Hope this helps! :)
Have a lovely day! <3
3 0
2 years ago
Which of the following numbers are irrational? A.9/15 B.18 squared C.9 squared D.169 squared E. 78 squared
finlep [7]
Answer is <span>A.9/15
'''''''''''''''''''''''
</span><span />

An irrational number cannot be expressed as a ratio between two numbers and it cannot be written as a simple fraction because there is not a finite number of numbers when written as a decimal.

6 0
3 years ago
A family swimming pool membership costs $27.50 per month plus a one-time registration fee of $25. If a family has paid a total o
Anna [14]

Answer:

5 months

Step-by-step explanation:

y=mx+b

162.50=27.50x+25

162.50-25=27.50x+25-25

137.50=27.50x

137.50/27.50=x

5=x

hope this helps :)

8 0
3 years ago
Read 2 more answers
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