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3 years ago

Hi please figure this out me and my sister are so confused

Mathematics

1 answer:

Vika [28.1K]3 years ago

8 0

Answer:

y = - 7

Step-by-step explanation:

Since the solution is always the same for y, y equals that solution and does not depend on x.

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A sales clerk wants to predict the shoe sizes that will be sold this weekend for a new shoe that is going on sale. She uses her

Alenkinab [10]

Answer:

6/15=0.400

Step-by-step explanation:

Count all of the shoe sizes that are less than 7.5. (6) And then divide that number by 15 (the number of customers)

5 0

3 years ago

Thirty percent (30%) of the bulbs in a large box are defective. If 12 bulbs are selected randomly from the box, calculate the pr

AleksandrR [38]

The probability that exactly 6 are defective is 0.0792.

Given:

30% of the bulbs in a large box are defective.

If 12 bulbs are selected randomly from the box.

To find:

The probability that exactly 6 are defective.

Solution:

Probability of defective bulbs is:

$p=30\%$

$p=\dfrac{30}{100}$

$p=0.3$

Probability of non-defective bulbs is:

$q=1-p$

$q=1-0.3$

$q=0.7$

The probability that exactly 6 are defective is:

$P(x=r)=^nC_rp^rq^{n-r}$

$P(x=6)=^{12}C_6(0.3)^6(0.7)^{12-6}$

$P(x=6)=924(0.3)^6(0.7)^{6}$

$P(x=6)=0.0792478958$

$P(x=6)\approx 0.0792$

Therefore, the probability that exactly 6 are defective is 0.0792.

Learn more:

brainly.com/question/12917164

8 0

3 years ago

What percent is 15 minutes of 1 hour

Marrrta [24]

15 minutes is 25% of an hour. You can tell this because there are exactly 4 15 minute periods in one hour.

Hope this helped.

6 0

3 years ago

Read 2 more answers

C and D are complementary. The measure of C is (4x) degrees and the measure of K is 26 degrees. What is the value of x?

Semmy [17]

Answer:

Step-by-step explanation:

Complementary angles are angles which add to 90 degrees. This means 4x + 26 = 90. Solve for x using inverse operations in the equation.

4x+26 = 90

4x = 64

x = 16

4 0

3 years ago

Please answer both questions, I will report and delete unnecessary answers, or answer just trying to steal points.

Nostrana [21]

Answer:

1. 3x-2y=-6

2. 3x+2y=6

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers