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3 years ago

How do you answer this?

Mathematics

1 answer:

Cloud [144]3 years ago

8 0

For 19, you would do 6b+8b=175, 14b=175, b=12.5. YZ would be 8b=YZ, 8*12.5=YZ, 100=YZ.

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What is the volume of a small cone if:

Amiraneli [1.4K]

Answer:

Volume of smaller cone =301.44

Step-by-step explanation:

First let angle of cone be $\alpha$ .

then $sin(\alpha )$ = 3/5 (For bigger triangle)

Same cone angle is for smaller one because they are similar.

$cos(\alpha )$ = 4/5

Now for smaller cone radius be R

3/5 =R/Slant height

Slant height =5/3R

Lateral surface area = $\frac{1}{2}R^{2}\beta$ [R = slant height]

Given lateral surface area =60 $\pi$ = $\frac{1}{2}(\frac{5R}{3} )^{2} \beta$ ...................................1

$2\pi R=\frac{5R}{3}\beta$ ................................................2

$\beta=\frac{6\pi }{5}$

Put angle beta in equation 1 and find the value of R

R =6 cm

Height = $\frac{4R}{3}$

Thus volume = $\frac{1}{3}\pi6^{2}*8$

=301.44

4 0

3 years ago

(10 points for the answer) y=

Nat2105 [25]

Answer: y=1x+4
Solving Steps:

5 0

3 years ago

Find the value of 4! O A. 24 O B. 16 O C. 12 O D. 10

Alex73 [517]

Answer:

A) 24

Step-by-step explanation:

4 x 3 x 2 x 1

4 0

3 years ago

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Alja [10]

The answer is 600 because of the miles

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3 years ago

K is the midpoint of JL. JK = 2x + 5 and JL = 50.

Sergeu [11.5K]

Steve set the equation equal to 50 which is the entire length of JL. instead he should've set the equation equal to 25, since it's half of 50 and would represent the midpoint. he should've said 2x + 5 = 25

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3 years ago