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2 years ago

Students at a high school were polled to determine the type of music they preferred. There were 1940 students who

Mathematics

1 answer:

Reika [66]2 years ago

6 0

Answer:

students preferred alternative music

= 461/1940 ×100%=23.7%

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A basketball has a diameter of 9.5

zubka84 [21]

Answer:

C. $\dfrac{4}{3}\pi\cdot(4.75)^3\ cm^3$

Step-by-step explanation:

The volume of the ball with radius R can be calculated using formula

$V=\dfrac{4}{3}\pi R^3$

A basketball has a diameter of 9.5 cm, so its radius is

$R=\dfrac{D}{2}=\dfrac{9.5}{2}=4.75\ cm$

Hence, the volume of air the basketball can hold is

$V=\dfrac{4}{3}\pi\cdot(4.75)^3\ cm^3$

4 0

1 year ago

There are 15 people in a party, including Hannah and Sarah. We divide the 15 people into 3 groups, where each group has 5 people

Sindrei [870]

Answer:15/3

Step-by-step explanation:

5 0

1 year ago

Read 2 more answers

Point Z is equidistant from the vertices of ΔTUV.

nadya68 [22]

Answer:

option C. Angle BTZ Is-congruent-to Angle BUZ

Step-by-step explanation:

Point Z is equidistant from the vertices of triangle T U V

So, ZT = ZU = ZV

When ZT = ZU ∴ ΔZTU is an isosceles triangle ⇒ ∠TUZ=∠UTZ

When ZT = ZV ∴ ΔZTV is an isosceles triangle ⇒ ∠ZTV=∠ZVT

When ZU = ZV ∴ ΔZUV is an isosceles triangle ⇒ ∠ZUV=∠ZVU

From the figure ∠BTZ is the same as ∠UTZ

And ∠BUZ is the same as ∠TUZ

So, the statement that must be true is option C

C.Angle BTZ Is-congruent-to Angle BUZ

3 0

2 years ago

Read 2 more answers

The prices of three t-shirts styles are $24, $30 and $36. the probability of choosing a $24 t-shirt is 1/6. the probability of c

Slav-nsk [51]

$\text{Answer} : \text{The expected value of a t-shirt is \$31.}$

Explanation:

Since we have given that

The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by

$\frac{1}{6}, \frac{1}{2},\frac{1}{3}$

As we know that,

$E(X)= \sum_{1}^{3}x_iP(x_i)$

$\text{where} x_i \text{ is the prices of t- shirts styles}$

Now,

$x_1= \$24 , x_2=\$30 , x_3=$36$

and

$P(x_1)=\frac{1}{6},P(x_2)=\frac{1}{2}, P(x_3)=\frac{1}{3}$

So,

$E(X)= 24\times \frac{1}{6}+30\times\frac{1}{2}+36\times \frac{1}{3}\\=4+15+12\\=31$

So, the expected value of a t-shirt = $31.

4 0

1 year ago

PART A: Marvin has a coupon the discount is the rental of a full-size car by $25 they decide to buy insurance for each day if th

natita [175]

Answer:

i dont know about the other parts but part A is 19

Step-by-step explanation:

6 0

1 year ago