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4 years ago

Help please thank you. will give brainliest. show all work and explain please.

Mathematics

1 answer:

alexandr402 [8]4 years ago

8 0

divide the frequency of 6 by the total frequency to obtain a probability

$probability = \frac{9}{60} = \frac{3}{20}$

(also 15%)

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A commuter must pass through five traffic lights on her way to work, and she will have to stop at each one that is red. After ye

uysha [10]

Answer:

a. (b) 2.5

b. (b) 1.89

Step-by-step explanation:

E(X) =0(0.05)+1(0.25)+2(0.35)+3(0.15)+4(0.15)+5(0.15)= 2.5

7 0

4 years ago

What is the volume of a hemisphere with a radius of 3.6cm, rounded to the nearest tenth of a cubic cm?

drek231 [11]

Answer:

$97.7161 {cm}^{3}$

Step-by-step explanation:

<h3>Input Data :</h3>

Length = 3.6 cm

<h3>Objective :</h3>

Find the volume of Hemisphere.

<h3>Formula :</h3>

Volume =

$\frac{ 2\pi {r}^{3} }{3}$

<h3>Solutions</h3>

volume =

<h3> $\frac{2 \times 3.1416 \times 3.6 ^{3} }{3}$ </h3>

$\frac{2 \times 3.1416 \times 46.656}{3}$

$\frac{293.1483}{3}$

$volume = 97.7161 {cm}^{3}$

8 0

3 years ago

Mary and Frank combine the marbles into one bag to do an experiment where they pick a marble from a bag and toss a coin. In the

Strike441 [17]

Answer:if We should put it in a decimal it’s 0.1 as a fraction it’s 11/110

Step-by-step explanation: You have to add all the numbers from the table and then add 11 wich makes it 11/110 you also add 11 beacahss it’s how many times yellow has landed on tails hope I am right

3 0

3 years ago

Put these in order starting with the smallest.

Alexxandr [17]

Answer:

Step-by-step explanation:

$9^{\frac{3}{2} }$ = ( √9 )³ = 27

$27^{\frac{1}{3} }$ = ∛27 = 3

$125^{\frac{2}{3} }$ = ( ∛125 )² = 25

$27^{\frac{1}{3} }$ , $125^{\frac{2}{3} }$ , $9^{\frac{3}{2} }$

7 0

2 years ago

Read 2 more answers

6х +y= 29<br> 3х - у= 7<br> what’s the answer

Paraphin [41]

Answer:

x=4, y=5

Step-by-step explanation:

6x+y=29

y=-6x+29

3x-1(-6x+29)=7

3x+6x-29=7

9x=36

x=4

6(4)+y=29

24+y=29

y=5

8 0

2 years ago