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3 years ago

A cone is 6 cm in height and its vertical angle is 54° calculate the radius of its base.

Mathematics

1 answer:

Romashka [77]3 years ago

8 0

Answer:

7cm

Step-by-step explanation:

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Find the measure of the missing angles.

Sergio039 [100]

Answer:

d = 105° , e = 32° , f = 43°

Step-by-step explanation:

d and 105° are vertically opposite angles and are congruent , then

d = 105°

e and 32° are vertically opposite angles and are congruent , then

e = 32°

105° , e and f lie on a straight line and sum to 180° , that is

105° + e + f = 180°

105° + 32° + f = 180°

137° + f = 180° ( subtract 137° from both sides )

f = 43°

8 0

2 years ago

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Factor as the product of two binomials x^2-2x+1

Ket [755]

Answer:(x + 1)^2

Step-by-step explanation:

4 0

3 years ago

2. If 8.67 is rounded to tenth, 8.67 becomes A. 8.00 B. 8.7 C. 8.60 D. 86.0 2.64

andrey2020 [161]

Answer:

b. 8.7

Step-by-step explanation:

7 rounds up turning the 6 besides it into a 7.

4 0

3 years ago

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Where can i find exams i need to pass to go to Harvard?

elixir [45]

You can’t you have to take a picture of it then it tells you the answer

3 0

3 years ago

the local independent party wants to poll registered voters to see the proportion who would consider voting for an independent c

SpyIntel [72]

Answer: 1308

Step-by-step explanation:

Given : Level of confidence = 0.97

Significance level : $\alpha=1-0.97=0.03$

Critical value : $z_{\alpha/2}=2.17$

Margin of error : $E=0.03$

If prior proportion of population is unknown , then the formula to find the population proportion is given by :-

$n=0.25(\dfrac{z_{\alpha/2}}{E})^2$

$\Rightarrow n=0.25(\dfrac{2.17}{0.03})^2=1308.02777778\approx1308$

Hence, the minimum sample size needed =1308

6 0

3 years ago