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mylen [45]
4 years ago
7

When solving

Mathematics
1 answer:
Delvig [45]4 years ago
4 0

Answer:

addition property of equality.

Step-by-step explanation:

4(3 x^2 + 2) - 9 = 8 x^2 + 7

We can add 9 to each side, by using the addition property of equality.

a=b  then a+c = b+c

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Help me pls due in 5 mins​
Drupady [299]

Answer: 215\ cm^2

Step-by-step explanation:

Given

Here the given figure can be divided into two shapes i.e. rectangle and a trapezium

For rectangle ABCD Area = 10\times8=80\ cm^2

Area of trapezium CEFD Area is \frac{1}{2}[\text{sum of non-parallel sides}]\times[\text{distance between them}]

\Rightarrow \frac{1}{2}\times [10+17][10]=135\ cm^2

Total shaded area =80+135=215\ cm^2

5 0
3 years ago
300 30 3 0.3 follows what pattern
labwork [276]
Divide 10 each time.

300/10=30
30/10=3
3/10=0.3
0.3/10=0.03
0.03/10=0.003
etc.
3 0
3 years ago
A CD usually sells for $12.00. If the CD is 20% off, and sales tax is 7%, what is the total price of the CD, including tax?
vredina [299]
$12 x .20 = $2.40 

12 - 2.40 = $9.60

$9.60 x .07 = $0.67 

$9.60 + $0.67 = $10.27 

Total price (including tax): $10.27 
3 0
4 years ago
PLEASE HELP !!! WILL MARK BRAINLIEST TO WHOEVER GETS IT RIGHT !!
barxatty [35]
The answer is 0 and 1
3 0
3 years ago
Read 2 more answers
What is the approximate volume of a cone with a height of 6mm and radius of 18 use 3.14 to approximate pi
Mandarinka [93]

Hello from MrBillDoesMath!

Answer:

2035.8  (approximately)

Discussion:

The volume of a cone or radius r and height h is given by the formula:

Volume = (1/3) Pi * r^2 * h. In our case this is:

V = (1/3) Pi * (18)^2 * 6

   =(1/3) Pi * 324 * 6                      => 324/3 = 108

   = 108 * 6 Pi                                 => 108 *6 = 648

   = 648 * Pi                                    => approximating Pi by 3.14

   = 648 * 3.14

   = 2035.8  (approximately)

Thank you,

MrB

5 0
3 years ago
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