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2 years ago

14

Help me please i dont get it

2 answers:

Nana76 [90]2 years ago

7 0

Answer:

b

Step-by-step explanation:

b

rusak2 [61]2 years ago

7 0

Answer:6/12

Step-by-step explanation: you find the common denominator (12 in this case) and multiply 3 by 4 to get that,then you multiply one to get 4.And finally you can add (terrible explanation)

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5y + 3 = 4y - 9 what is y?

Elena L [17]

$y = - 12$

Step-by-step explanation:

$5y - 4y = - 9 - 3 \\ y = - 12$

6 0

3 years ago

Can someone pleaseeee help and if you’re correct I’ll give u brainliest

liq [111]

Answer:

The answer is b

Step-by-step explanation:

6 0

2 years ago

Samples of emissions from three suppliers are classified for conformance to air-quality specifications. The results from 100 sam

Vlad [161]

Answer

$P(A) = 0.30$

$P(B) = 0.77$

$P(A\ n\ B) = 0.22$

$P(A\ u\ B) = 0.85$

Explanation:

Given

See attachment for proper data presentation

$n = 100$ --- Sample

A = Supplier 1

B = Conforms to specification

Solving (a): P(A)

Here, we only consider data in sample 1 row.

Here:

$Yes = 22$ and $No = 8$

$n(A) = Yes + No$

$n(A) = 22 + 8$

$n(A) = 30$

P(A) is then calculated as:

$P(A) = \frac{n(A)}{Sample}$

$P(A) = \frac{30}{100}$

$P(A) = 0.30$

Solving (b): P(B)

We only consider data in the Yes column.

Here:

$(1) = 22$ $(2) = 25$ and $(3) = 30$

$n(B) = (1) + (2) + (3)$

$n(B) = 22 + 25 + 30$

$n(B) = 77$

P(B) is then calculated as:

$P(B) = \frac{n(B)}{Sample}$

$P(B) = \frac{77}{100}$

$P(B) = 0.77$

Solving (c): P(A n B)

Here, we only consider the similar cell in the yes column and sample 1 row.

i.e. [Supplier 1][Yes]

This is represented as: n(A n B)

$n(A\ n\ B) = 22$

The probability is then calculated as:

$P(A\ n\ B) = \frac{n(A\ n\ B)}{Sample}$

$P(A\ n\ B) = \frac{22}{100}$

$P(A\ n\ B) = 0.22$

Solving (d): P(A u B)

This is calculated as:

$P(A\ u\ B) = P(A) + P(B) - P(A\ n\ B)$

This gives:

$P(A\ u\ B) = \frac{30}{100} + \frac{77}{100} - \frac{22}{100}$

Take LCM

$P(A\ u\ B) = \frac{30+77-22}{100}$

$P(A\ u\ B) = \frac{85}{100}$

$P(A\ u\ B) = 0.85$

7 0

2 years ago

On the next test, one of the students score 100 but the remaining 4 students score 50 again. What is the average score on this s

Anastasy [175]

Answer:

60

Step-by-step explanation:

50+50+50+50+100= 300

divide by 5 students

300/5 = 60

7 0

2 years ago

Read 2 more answers

Solve for the letter A. ab-d=c

DaniilM [7]

Answer:

a = $\frac{c+d}{b}$

Step-by-step explanation:

First, you want to add d on both sides.

ab-d = c

<u>+d +d</u>

ab = c+d

Now, divide b on both sides.

ab = c+d

<u>/b /b</u>

a = $\frac{c+d}{b}$

I hope this helps; have a great day c:

(Also, I just realized that I solved only the question that you typed, not the picture...do you need the answer for the question in the picture???)

7 0

3 years ago