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Naily [24]
3 years ago
11

Select the expression equivalent to (4x-6)-(7x+8)

Mathematics
1 answer:
lapo4ka [179]3 years ago
3 0
-3x-14 should be the answer
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What is the rate of change in the y-values with respect to the x-values?
dybincka [34]

Answer:

The answer to your question is the last option

Step-by-step explanation:

Process

1.- To calculate the rate of change, calculate slope

Formula

             m = (y2 - y1) / (x2 - x1)

x1 = 1           y1 = 1200

x2 = 2         y2 = 2400

2.- Substitution

             m = (2400 - 1200) / (2 - 1)

3.- Simplification

             m = 1200 / 1

4.- Result

             m = 1200 meters / minute

6 0
3 years ago
4. Find the measurements of the square:<br> Area<br> 400ft2
yan [13]

Answer:

20 ft × 20 ft (square has equal sides)

6 0
3 years ago
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What is the domain of the function?
denis23 [38]
Use a calculator it's not hard
6 0
3 years ago
Find the volume of the triangular prism. The base of the triangle is 4cm and the height of the triangle is 6cm. The length of th
igomit [66]

Answer:

72 cm*3

Step-by-step explanation:

volume = base area x height = 4 x 6 x 3 = 72

4 0
3 years ago
Of all the people applying for a certain​ job, 80% are qualified and 20​% are not. The personnel manager claims that she approve
motikmotik

Answer:

69.23% probability that a person is not qualified if he or she was not approved by the manager.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes:

In this problem, we have these following probabilities:

80% probability that a person is qualified

20% probability that a person is not qualified.

90% probability that a qualified person is approved.

10% probability that a qualified person is not approved.

10% probability that an unqualified person is approved.

90% probability that an unqualified person is not approved.

Find the probability that a person is not qualified if he or she was not approved by the manager.

Desired outcomes

Unqualified and not approved.

20% are not qualified. Of those, 90% were not approved. So

0.9*0.2 = 0.18

Total outcomes:

Qualified and not approved or unqualified and not approved.

80% are qualified. Of those, 10% were not approved

20% are not qualified. Of those, 90% were not approved. So

0.8*0.1 + 0.9*0.2 = 0.26

Probability

P = \frac{0.18}{0.26} = 0.6923

69.23% probability that a person is not qualified if he or she was not approved by the manager.

7 0
3 years ago
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