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2 years ago

8. Harper, Elie, and Raina are having a skateboard race. Harper began at the starting line and rode at a

Mathematics

1 answer:

Kay [80]2 years ago

4 0

Answer:

Step-by-step explanation:

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Solve for Y........................

aivan3 [116]

11 squared is 121
20 squared is 400
121+400= 521
The approximate square root of 521 is approximately 22.8254

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3 years ago

A store is having a sale. You can buy 14 cards for $6. What is the cost of 35 cards during this sale?

skad [1K]

Answer:

15$

Step-by-step explanation:

14=$6

35=6*35/14

5 0

3 years ago

Help me what to write a word phrase for each algebraic expression. Please help.

andrezito [222]

#1: The sum of q and 5
#2: Twelve times x

Please do as many as you can by yourself and ask questions about those that are hard for you.

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2 years ago

You observe the heights of two plants for an experiment. Plant A has a height of 8 centimeters and grows 1 centimeter each week.

saveliy_v [14]

Answer:

Step-by-step explanation:

8 0

3 years ago

Determine if events A and B are mutually exclusive.

gladu [14]

Answer:

A) Not mutually exclusive

Step-by-step explanation:

Given

$P(A) = \frac{1}{4}$

$P(B) = \frac{3}{5}$

$P(A\ or\ B) = \frac{7}{10}$

Required

Determine if they are mutually exclusive or not

Mutually exclusive are defined by:

$P(A\ or\ B) = P(A) + P(B)$

So, we have:

$P(A\ or\ B) = \frac{1}{4} + \frac{3}{5}$

Take LCM

$P(A\ or\ B) = \frac{5+12}{20}$

$P(A\ or\ B) = \frac{17}{20}$

By comparing:

$P(A\ or\ B) = \frac{17}{20}$ ---- Calculated

$P(A\ or\ B) = \frac{7}{10}$ ---- Given

We can conclude that A and B are not mutually exclusive because:

$\frac{17}{20} \ne \frac{7}{10}$

6 0

3 years ago