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SOVA2 [1]
3 years ago
5

What's the circumference of a circle with a diameter of 30 cm

Mathematics
2 answers:
Bingel [31]3 years ago
7 0
C=<span>πd
C=</span><span>π*30
C=30</span>π<span>≈94.25 cm</span>
Korvikt [17]3 years ago
3 0
About 94.25. the formula is C=2(pi)r or C=(pi)D
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In the morning, the temperature was 15∘F. During the day, the temperature fell 37 degrees. Which expression shows how to find th
tino4ka555 [31]

Answer:

- 22°F

Step-by-step explanation:

Given that :

Morning temperature = 15°F

Change in temperature = fall by 37 degree

The temperature of the end of the day:

Morning temperature + (change in temperature)

Fall by 37° = decrease in temperature by 37° = - 37°

15°F + (-37°F)

15°F - 37°F

= - 22°F

6 0
2 years ago
Convert 3 2/7 into improper fractions <br><br> 21/7<br> 23/7<br> 41/7<br> None of the above
Vesnalui [34]
Hello,

The correct answer is B.

Further explanation: The first step is to multiply 3 by 7. That gives you 21, then add 21+2. Then put your denominator at the bottom.

Workspace:

3 * 7

=21

21 + 2

=23/7
5 0
2 years ago
Hfejfndsljrogldfmvdf gffhelppp
LuckyWell [14K]

Answer:

c

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Find the area of the shaded regions. Give your answer as a completely simplified
Pavel [41]

The area of the shaded region is 40π/3 square cm if the radius of the small circle r is 3 cm and the radius of the large circle R is 7 cm.

<h3>What is a circle?</h3>

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

We have a circle in which the shaded region is shown.

The radius of the small circle r = 3 cm

The radius of the large circle R = 3+4 = 7 cm

The area of the shaded region:

= area of the large circle sector - an area of the small circle sector

                                                     

= (120/360)[π7²] - (120/360)[π3²]

= 49π/3 - 3π

= 40π/3 square cm or

= 13.34π square cm

Thus, the area of the shaded region is 40π/3 square cm if the radius of the small circle r is 3 cm and the radius of the large circle R is 7 cm.

Learn more about circle here:

brainly.com/question/11833983

#SPJ1

5 0
2 years ago
What is 7 to the power of 6 mulitplyed by 7 to the power of 5 and simplifyed
choli [55]

Answer:

7^11

Step-by-step explanation:

7^6 * 7^5

when multiplying power of the same base, add the exponents

7^ (6+5)

7^ 11


3 0
3 years ago
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