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nataly862011 [7]
3 years ago
15

I need help with my test​

Mathematics
2 answers:
Luden [163]3 years ago
8 0
What do u need help with ?
eduard3 years ago
4 0

Answer:

A) Domain: All real numbers greater than or equal to 0 and less than or equal to 100  

Range: All real numbers greater than or equal to 0 and less than or equal to 50

B ) Domain: (-2)

Range: (100)

C  ) Domain: All real numbers greater than or equal to 0 and less than or equal to 50

Range: All real numbers greater than or equal to 0 and less than or equal to 100

D ) Domain: (100)

Range: (-2)

As per the graph, the domain is x-values in the interval [0, 50] minutes and the range is y-values in the interval [0, 100] percentage.

Correct answer choice is therefore:

Option C

The rest are all incorrect

Step-by-step explanation:

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The distance between the points (12,9) and (0,4) is A) 14 units B) 13 units C) 15 units D) 16 units
Juliette [100K]

Answer:

Option B  13 units is correct.

Step-by-step explanation:

The formula used to find distance between 2 points is:

d(P1,P2)=\sqrt{(x_{2} -x_{1})^2 + (y_{2} -y_{1})^2 }

x₁ = 12 x₂ = 0 y₁= 9 and y₂=4

Putting values in the formula:

=\sqrt{(0-12)^2+(4-9)^2}\\=\sqrt{(-12)^2+(-5)^2}\\=\sqrt{144+25} \\=\sqrt{169} \\=13

So, Option B 13 units is correct.

6 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!
worty [1.4K]

{y}^{2}  + 49 \\  \\   = {y}^{2}  - ( - 49) \\  \\   =  {y}^{2} -  {(7i) }^{2} \\  \\   = (y + 7i)(y - 7i)
5 0
4 years ago
If X = 16 feet and Y = 8 feet, what is the area of the figure above ? Use 3.14 for pi .
Setler [38]

Answer:

A

Step-by-step explanation:

You can probably figure out the rectangle of 16 by 8 so no explaining there. 16×8=128. You know that diameter of the cirkel is equal to y so 8. The diameter of a cirkel is two times its radius. so 8=2r. r=4. The area of a cirkel is calculated by the formula \pi×r^2. Fill in r=4 in \pi×r^2 gives us \pi×4^2=16\pi. You only have half of the cirkel so 16\pi/2=8\pi. 128+8\pi=153.12 which is A.

5 0
3 years ago
State the gradient of the line 2y = 3 - 2x.
lyudmila [28]

Answer:

Step-by-step explanation:

2y = 3 -2x

Rearrange the equation to slope-intercept form

y = -x + 3/2

Slope of line is 3/2.

8 0
3 years ago
A truck driver drives at a constant rate of 60 miles per hour while on the highway. Which equation represents the distance, d, i
lora16 [44]

Answer:

B

Step-by-step explanation:

this is a rate of time, 60 must be multiplied by the hours to get the days

8 0
3 years ago
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