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Elza [17]
3 years ago
13

You guys help me please I’m stuck

Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0
The answer should be $40
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Line 1 passes through the points (-4, -6) and (12,2). line 2 passes through the points (-6,-2) and (-2,0). Do the lines intersec
kifflom [539]

The lines dont intersect

7 0
3 years ago
Simplify (8 + 7i) + (2 –i)
inna [77]
<span>Simplify (8 + 7i) + (2 –i) 
</span>answer:10+6i 
8 0
3 years ago
A market researcher for Eric’s Electronics wants to study TV viewing habits of residents in Chicago. The individuals in the surv
Elena L [17]

Answer:

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Since the sample size is large and the population standard deviation is known, we would use the following formula and determine the z score from the normal distribution table.

Margin of error = z × σ/√n

Where

σ = population standard Deviation

n = number of samples

From the information given

1) x = 17.5

σ = 5

n = 50

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.9 = 0.1

α/2 = 0.1/2 = 0.05

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.05 = 0.95

The z score corresponding to the area on the z table is 1.645. Thus, confidence level of 90% is 1.645

Margin of error = 1.645 × 5/√50 = 1.16

Confidence interval = 17.5 ± 1.16

3 0
3 years ago
Simplify -2(4 – 5s + 12t – 2u)
g100num [7]

Answer: -8+10s-24t+4u

Steps: Multiply the parantheses by -2

-2×4-2×(-5s)-2×12t-2×(-2u)

Multiply the numbers and calculate the product.

-8+10s-2×12t-2×(-2u) → -8+10s-24t-2×(-2u) → -8+10s-24t+2×2u

And you get -8+10s-24t+4u

Hope this helps ʕ•ᴥ•ʔ

5 0
3 years ago
The first four terms of a sequence are shown on the graph below. On a coordinate plane, points are at (1, negative 1), (2, 8), (
Masja [62]

Answer:

  • The next term of the sequence is represented by the point (5, –64)

Step-by-step explanation:

<u>Note:</u> <em>The first point should be (1, - 4)</em>

According to the points, the sequence is:

  • t₁ = - 4, t₂ = 8, t₃ = - 16, t₄ = 32

or

  • - 4, 8, - 16, 32, ...

We can observe it is a geometric sequence with common ratio of - 2, as:

  • r = 32/ - 16 = - 16/8 = 8/ - 4 = - 2

The following term is:

  • t₅ = t₄*r = 32*(- 2) = - 64

The coordinates of same term are:

  • (5, - 64)

As we see the correct answer choice is D.

5 0
2 years ago
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