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3 years ago

What is 2a squared if a=3?

Mathematics

2 answers:

borishaifa [10]3 years ago

7 0

2(3)^2= 18 that is with a(3) squared or 2(3)=6 and 6squared or 6^2 = 36.

Fittoniya [83]3 years ago

7 0

If You mean is :
$2a^{2}~~~~~~[just\ subtituted\ a\ into\ 3]$

$2a^{2}\\=2(3)^{2}\\=2(3 \times 3)\\=2(9)\\=18$

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Can somebody please help me with this question??:,,)

MatroZZZ [7]

Answer:

30 and 60

Step-by-step explanation:

1. "The measure of angle is twice the measure of its complement" means that one angle is twice the amount of another angle, and when both of them are added together, they equal 90°.

2. 60 is twice the amount of 30, and when both of them are combined, they equal 90°.

Therefore, the answer is 30 and 60.

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2 years ago

Find n(A) for the set.

charle [14.2K]

Answer:

b.n(A)=1800

Step-by-step explanation:

b.n(A)=1800

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2 years ago

Can someone please check if this is correct?

Solnce55 [7]

Answer:

Just two corrections! See attached image.

Step-by-step explanation:

The product of 8 and b taken <u>from</u> 10 means begin with 10 and subtract 8b from it.

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2 years ago

The vocbulary of adding and subtracting radicals

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Adding and subtracting radical expressions.

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2 years ago

Slav-nsk [51]

Let k be the scale factor relating two similar prisms $P_{1}$ and $P_{2}$ , such that for corresponding parts of prisms $P_{1}$ and $P_{2}$ (for heights, in particular) we have $k= \frac{height\ of \ P_{1} }{height \ of\ P_{2} }$ . In our case $k= \frac{4}{10} = \frac{2}{5}$ .
For surfaces area we have $\frac{Surface \ area \ of \ P_{1} }{Surface \ area \ of \ P_{2}} = k^{2} =( \frac{2}{5} )^{2}= \frac{4}{25}$ .
So, the right answer is 4:25 (choice B)

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3 years ago