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3 years ago

Can someone help me out?

Mathematics

1 answer:

jonny [76]3 years ago

8 0

Answer:

Step-by-step explanation:

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Do these ratios form a proportion?

ad-work [718]

Answer:

Step-by-step explanation:

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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

Can someone help me with this problem, please?

Masja [62]

Answer:

Length = 2 ft

Width = 7/4 ft = 1.75 ft

Step-by-step explanation:

Length of room on blueprint = 1/8 *16 = 2 ft

Width of room on blueprint = 1/8 *14 = 7/4 ft = 1.75 ft

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2 years ago

What is the unit rate for 14 lb for $2.99

Alexeev081 [22]

How much for 1lb
2.99/14=0.213/1=$0.21

it is 21 cents per lb

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3 years ago

I need help with slopes in math

e-lub [12.9K]

What do u wanna know?

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3 years ago

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