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2 years ago

Please help on this question!!!!!

Mathematics

1 answer:

Nata [24]2 years ago

4 0

Answer: 65

Step-by-step explanation:

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15. PLEASE HELP ME

Nana76 [90]

Surface Area=7238in^2

We know

$\boxed{\sf Surface\:area=4\pi r^2}$

$\\ \sf\longmapsto 4\pi r^2=7238$

$\\ \sf\longmapsto 4\times \dfrac{22}{7}r^2=7238$

$\\ \sf\longmapsto r^2=\dfrac{7238\times 7}{88}$

$\\ \sf\longmapsto r^2=\dfrac{5066}{88}$

$\\ \sf\longmapsto r^2=575.75$

$\\ \sf\longmapsto r^2\approx576$

$\\ \sf\longmapsto r\approx\sqrt{576}$

$\\ \sf\longmapsto r\approx24in$

<h3>Option b is coreect</h3>

4 0

3 years ago

Read 2 more answers

Find the probability of atleast three successes in six trials of a binomial experiment in which the probability of success is 50

yan [13]

The binomial cumulative probability with p=0.5 for 3+ successes is as follows:

$P(3+)=\sum_{k=3}^6 {{6}\choose{k}}p^k(1-p)^{6-k}$

for p=0.5 (50% success rate) it becomes:

$P(3+)=\sum_{k=3}^6 {{6}\choose{k}}0.5^6=\frac{21}{32}=0.65625$

the probability is 0.65625, or about 66%

7 0

3 years ago

In the ordered pair (2, 3), what is the x-coordinate? y-coordinate?

blagie [28]

Answer:

2 = x- coordinate

3 = y coordinate

Step-by-step explanation:

REMEMBER: In an ordered pair, the x-coordinate always comes first.

3 0

3 years ago

[Accessibility Mode

Hatshy [7]

Answer:

91 Adults

Step-by-step explanation:

Because there are 26 children, you divide it by 2 to get 13. Multiply 13 by 7 for your answer, 91

6 0

2 years ago

What is the difference in length between the girls with the shortest and longest hair

Evgen [1.6K]

Answer:

I think the difference is girls with longer hair look more attractive.

Step-by-step explanation:

Need the diagram....

6 0

2 years ago