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3 years ago

12

A school offers four extra curricular activities: band, yearbook, basketball, and art. If two students choose randomly, what is

the probability that they both end up on the yearbook staff?
Express the probability as a decimal rounded to two decimal places.

1 answer:

andreyandreev [35.5K]3 years ago

4 0

I believe it's P = 0.06

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How many edges does this shape have?

kotegsom [21]

Answer:

Well if you want us to add those, then 28

If you want us to multiply, then 720

Step-by-step explanation:

I think 28 would be a more reasonable answer-

7 0

3 years ago

If f(x) = 5x2 − 2x, 0 ≤ x ≤ 3, evaluate the Riemann sum with n = 6, taking the sample points to be right endpoints. R6 =

Leona [35]

Answer:

46.375

Step-by-step explanation:

Given information:

$f(x)=5x^2-2x$

where, 0 ≤ x ≤ 3.

We need to divde the interval [0,3] in 6 equal parts.

The length of each sub interval is

$\dfrac{b-a}{n}=\dfrac{3-0}{6}=0.5$

Right end points are 0.5, 1, 1.5, 2, 2.5, 3.

The value function on each right end point are

$f(0.5)=5(0.5)^2-2(0.5)=0.25$

$f(1)=5(1)^2-2(1)=3$

$f(1.5)=5(1.5)^2-2(1.5)=8.25$

$f(2)=5(2)^2-2(2)=16$

$f(2.5)=5(2.5)^2-2(2.5)=26.25$

$f(3)=5(3)^2-2(3)=39$

Riemann sum:

$\sum_{n=1}^6 f(x_n)\Delta x_n$

$Sum=[f(0.5)+f(1)+f(1.5)+f(2)+f(2.5)+f(3)]\times 0.5$

$Sum=[0.25+3+8.25+16+26.25+39]\times 0.5$

$Sum=92.75\times 0.5$

$Sum=46.375$

Therefore, the Riemann sum with n = 6 is 46.375.

6 0

3 years ago

HELP ASAP I NEED IT!!

nevsk [136]

Answer:

The two complex numbers that make the equation true are 1 + i and 3 + 2i

(1 + i) + (3 + 2i) = 4 + 3i

Step-by-step explanation:

(1 + i) + (3 + 2i)

Combine the real and imaginary parts in numbers 1 + i and 3 + 2i

1 + 3 + (1 + 2)i

Add 1 to 3. Add 1 to 2.

4 + 3i

The two complex numbers that make the equation true are 1 + i and 3 + 2i

6 0

2 years ago

Mya's lunchbox is shown. What is the volume of the lunchbox? Round to the nearest tenth if necessary.

NISA [10]

V= 720.8 cubed

Explanation- 4.25 x 2 = 8.5
H= 8.5
L= 10.6
W= 8
8.5 x 10.6 x 8 = 720.8

3 0

3 years ago

What is the volume of the cylinder below?

snow_lady [41]

Volume of cylinder = πr²h

Volume = π (12)² × 17

= 2448 π units³

Thus the answer is (d)

4 0

3 years ago

Read 2 more answers