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Mademuasel [1]
2 years ago
8

29 POINTS PLUS BRAINLIEST PLEASE ANSWER THESE MATH QUESTIONS.ALL TROLL ANSWERS WILL BE REPORTED MUST BE DONE IN 20min OR.LESS.

Mathematics
2 answers:
Leto [7]2 years ago
7 0

Answer:

51 cm^2

Step-by-step explanation:

To find the area excluding the shaded triangle, first find the area of the whole figure:

12 x 6 = 72cm^2

Now, find the area of the triangle:

(7 x 6) / 2

42/2

21cm^2

Lastly, subtract the shaded area from the whole:

72 - 21 = 51 cm^2

yulyashka [42]2 years ago
7 0

Answer:

42 sq. centimeters

Step-by-step explanation:

6 x 7 = 42.

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A cylinder has a volume of 105 cubic centimeter what is the volume of a cone with the same base and height?
pychu [463]

Answer:

<h2>35 cm³</h2>

Step-by-step explanation:

The formula of a volume of a cylinder:

V_1=\pi r^2H

r - radius

H - height

The formula of a volume of a cone:

V_2=\dfrac{1}{3}\pi r^2H

If the cylinder and the cone have the same base (radius) and the same height, then the volume of the cone is three times smaller than the volume of the cylinder.

V_2=\dfrac{1}{3}\underbrace{\pi r^2H}_{V_1}

Therefore:

V_2=\dfrac{1}{3}V_1\toV_2=\dfrac{1}{3}\cdot105\ cm^3=35\ cm^3

5 0
3 years ago
An envelope is 3 inches wide, and it measures 7 inches along the diagonal. What is the envelope’s length? If necessary, round to
Crank

The length of the envelope is 6.3 inches

Step-by-step explanation:

Width of the envelope = 3 inches

Diagonal of the envelope = 7 inches

To find:

The length of the envelope.

Let the length of the envelope be 'l'

We can use pythogoras theorem to calculate the length.

l = √(49-9)

l = √(40)

l = 6.3 inches

The length of the envelope is 6.3 inches

7 0
3 years ago
Find the GCF of -10c2d and 15 ca2
jonny [76]

Answer:

5c

Step-by-step explanation:

5c is the only value you can take out of both factors

4 0
3 years ago
Help quickly please~❤️❤️
klasskru [66]

Answer:

-6-b

Step-by-step explanation:

3 0
3 years ago
The flu fighter competed against 40 bands in the CHICKEN soup country battle of the bands. The top 15% will compete in the all v
Gemiola [76]
41 times 0.15 equals 6.15. as you can't have 0.15 of a band, that means only 6 bands will compete.
4 0
3 years ago
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