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Damm [24]
3 years ago
8

PLEASE Need Help Show Work

Mathematics
1 answer:
BartSMP [9]3 years ago
7 0

This set notation really seems the hard way to exclude a single value. Anyway...

The domain doesn't include where the denominator is zero, 4x + 7 = 0,

x = -7/4

The range doesn't include the asymptotic value, which is

y=2x/4x = 1/2

So we need domain x ≠ -7/4 and range y ≠ 1/2

Answer: First choice

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A submarine cuts through the water at an elevation of 203 meters under the sea. The sub rises, and the elevation changes by 4.3
mario62 [17]
The answer is -76.1 meters.

The submarine elevation before rising is -203 meters (it is negative because it is under the sea level which has 0 elevation): d₁ = -203 m
After the first rising, it moved 64.5 m: l₁ = 4.3 · 15 = 64.5 m
After the second rising, it moved 62.4 m: l₂ = 5.2 · 12 = 62.4 m

So, to calculate <span>the elevation of the submarine after rising (d</span>₂), we will add (because it is not going deeper, it rises toward the elevation of 0) two movements to the elevation before rising:
d₂ = d₁ - (l₁ + l₂) = -203 + (64.5 + 62.4) = -203 + 126.9 = -203 + 126.9 = -76.1.
5 0
3 years ago
Read 2 more answers
Watch help videoGiven the matrices A and B shown below, find B +A11B5
mixer [17]

we have that

A+B=B+A -------> is the same

so

B+A= (1-5) (-3+3) (4-5) (-5-2)

(2-4) (5-2) (-4+4) (4-5)

<h2>B+A= -4 0 -1 -7</h2><h2> -2 3 0 -1</h2>

7 0
1 year ago
Evaluate (-2 4/5)-(-1 5/6)​
iragen [17]

Answer:

(-29)/30

Step-by-step explanation:

Simplify the following:

-(2 + 4/5) + (1 + 5/6)

Put 2 + 4/5 over the common denominator 5. 2 + 4/5 = (5×2)/5 + 4/5:

-(5×2)/5 + 4/5 + 1 + 5/6

5×2 = 10:

-(10/5 + 4/5) + 1 + 5/6

10/5 + 4/5 = (10 + 4)/5:

-(10 + 4)/5 + 1 + 5/6

10 + 4 = 14:

-14/5 + 1 + 5/6

Put (-14)/5 + 1 + 5/6 over the common denominator 30. (-14)/5 + 1 + 5/6 = (6 (-14))/30 + 30/30 + (5×5)/30:

(6 (-14))/30 + 30/30 + (5×5)/30

6 (-14) = -84:

(-84)/30 + 30/30 + (5×5)/30

5×5 = 25:

(-84)/30 + 30/30 + 25/30

-84/30 + 30/30 + 25/30 = (-84 + 30 + 25)/30:

(-84 + 30 + 25)/30

| 3 | 0

+ | 2 | 5

| 5 | 5:

(55 - 84)/30

55 - 84 = -(84 - 55):

(-(84 - 55))/30

| 7 | 14

| 8 | 4

- | 5 | 5

| 2 | 9:

Answer: (-29)/30

6 0
3 years ago
Seth's family plans to drive 220 220 miles to their vacation spot. They would like to complete the drive in 4 4 hours. Find the
balu736 [363]

Answer: 55 miles per hour

Step-by-step explanation:

Here is the complete question:

Seth's family plans to drive 220 miles to their vacation spot. They would like to complete the drive in 4 hours.

Find the average speed in miles per hour needed to make the trip in the desired.

From the question, Seth's family plans to drive 220 miles to their vacation spot and they would like to complete the drive in 4 hours.

Average speed is calculated as distance travelled divided by the time taken. This will be:

Speed = Distance/Time

Average speed = 220/4

Average speed = 55 miles per hour

4 0
3 years ago
I will love you forever if someone can help me with this
g100num [7]
It should be B. right angle and C. complementary angles
8 0
3 years ago
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