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vladimir1956 [14]
3 years ago
8

What is √ 63 − 4 √ 7??

Mathematics
1 answer:
tester [92]3 years ago
4 0

Answer:

- √7

Step-by-step explanation:

√63 = √9*7 = √9*√7

Sqrt(9) = 3

3√7 - 4√7 = -1√7=  -√7

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A. 11 cm^3<br> B. 14 cm^3<br> C. 15 cm^3<br> D. 25 cm^3
IgorLugansk [536]
Lets get started :)

We need to find the radius of the larger cylinder

V = \pir²h
960 = \pir²(16)
\frac{960}{16} = \pi r^2
60 = \pi r^2
\frac{60}{ \pi } = r^2
r = \sqrt{ \frac{60}{ \pi } }
r ≈ 4.27 cm

The ratio of the bigger cylinder to smaller is:
16 : 4

Therefore, the big cylinder is 4 times bigger than the small cylinder

\frac{4.37}{4} = r
r = 1.09 cm (radius of small cyclinder)

V (small cylinder) = \pi(1.09)²(4)
                             = 15 cm³

Your answer will be C. 15 cm³

3 0
3 years ago
Read 2 more answers
The pre-image, A, was dilated by a factor of 1/2 about
Pavel [41]

Answer:D

Step-by-step explanation:

Translation right 3 units

5 0
3 years ago
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Find the distance between the two points. Enter the number that goes beneath the radical symbol. (PICTURE ABOVE]​
Dmitrij [34]

Answer:

50

Step-by-step explanation:

To do this we know that a^2+b^2 = x^2

for b:

The distance between -1 and 4 is 5. we will use 5^2

for a:

The distance between -3 and 2 is also 5. we we use 5^2

put into the formula

5^2+5^2=c^2

25+25=c^2

50=c^2

so the square root of 50 is the distance between the points

4 0
3 years ago
Lanie’s room is in the shape of a parallelogram.
belka [17]

Answer:

590

Step-by-step explanation:

Hope it’s correct

4 0
3 years ago
Which could be the next step in simply fingers this question 13 +19+7
Alja [10]
You would add 13+19=32

then add 32+7 which equals 39 :P
7 0
3 years ago
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