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polet [3.4K]
3 years ago
8

Which statement describes the relationship between x and y in these two equations? y = 2x and y = x + 2

Mathematics
1 answer:
love history [14]3 years ago
6 0

Answer:

D

Step-by-step explanation:

In y = 2x the value of y is twice the value of x, and in y = x + 2 the value of y is 2 more than the value of x.

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FUNCTION OR NOT /// ALGEBRA I
guapka [62]

Answer:

First figure: The graph is not a function

Second figure:

Statement 1: It is false

Statement 2: It is false

Statement 3: It is right

Step-by-step explanation:

First graph is not a function.

The domain of it is ⇒ 0 ≤ x < 3 , 3 < x ≤ 6 , 6 ≤ x < 9

From the domain ⇒ x = 6 has two corresponding values of y⇒ 3 and 4

∴ It is not a function because every x must have one and only one

  corresponding value of y

Second figure

{(3 , 6) , (4 , 6) , (5 , 7) , (6 , 8) , (7 , 10) , (8 , 10)}

<u>Statement 1</u>: It is false because we use x-value to check function or not.

The relation is a function because every x-value has one corresponding

y-value

<u>Statement 2</u>: It is false because 3 ≤ x ≤ 8 means we will use for x all real numbers from 3 to 8 not only the integers 3 , 4 , 5 , 6, ,7 , 8

The domain of this function is { 3 , 4 , 5 , 6 , 7 , 8 }

<u>Statement 3</u>: It is right because the range is the y-value and all the y-value in the function are 6 , 7 , 8 , 10

5 0
3 years ago
a total of 40 people make cakes for a bake sale. Each person made three cakes. Miss Shantez found that 15% of the cakes were cho
11Alexandr11 [23.1K]
1 person make 3 cakes.

40 people make 40 x 3 = 120 cakes.

15% were chocolate = 15% x 120 = 0.15 x 120 = 18

Answer: There were 18 chocolate cakes made for bake sale.
6 0
3 years ago
Read 2 more answers
What are 2 equivalent forms of 31/50
9966 [12]

Answer:

I'm not exactly sure what your asking but if you mean equivalent forms your answers are: 0.62 and 62%

But if you mean equivalent fractions your answers are: 62/100 and 93/150

8 0
3 years ago
Is 250yd bigger than 800ft​
AnnyKZ [126]

Answer:

duh yes it is

Step-by-step explanation:

noob at math u rlolll

8 0
3 years ago
Read 2 more answers
The sampling distribution has a mean of 0.03 and a standard error of 0.007. The researchers' sample mean comes back at 0.026. In
SIZIF [17.4K]

Answer:

z = -0.57

Step-by-step explanation:

A z-score indicates how much away is something from the mean so it can be more(above) than the mean or less(below) than the mean.

sampling distribution mean = 0.03

standard error = 0.007

researcher's sample mean = 0.026

z = (0.026 - 0.03)/0.007

z = (-0.004)/0.007

z = -0.57

So that means the researcher's sample mean is 0.57 standard deviation below the sampling distribution mean.

The negative sign above is the indicator of below the mean value.

5 0
3 years ago
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