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larisa86 [58]
4 years ago
13

Which set of points is a function

Mathematics
1 answer:
e-lub [12.9K]4 years ago
4 0

Answer: B

Step-by-step explanation:

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Erik buys 2.5 pounds of cashews.If each pound of cashews cost $7.50, how much will he pay for the cashews
spin [16.1K]
Erik will pay $18.75 for the cashews.
5 0
4 years ago
Is the equation conditional, an identity, or a contradiction? y - 11 + 3y = 6y + 4
ipn [44]

Answer:

The equation is a conditional.

y = 7.5

Step-by-step explanation:

y - 11 + 3y = 6y + 4

4y - 11 = 6y + 4

4y - 4y - 11 = 6y - 4y + 4

- 11 = 2y + 4

- 11 - 4 = 2y + 4 - 4

2y = - 15

2y ÷ 2 = - 15 ÷ 2

y = - 7.5

8 0
4 years ago
Can someone please explain how to do these?
Pani-rosa [81]

Answer:

<u>First question answer:</u> The limit is 69

<u>Second question answer:</u> The limit is 5


Step-by-step explanation:

For the first limit, plug in x=8 in the expression (9x-3), that's the answer for linear equations and limits.

So we have:

9x-3\\9(8)-3\\72-3\\69

The answer is 69


For the second limit, if we do same thing as the first, we will get division by 0. Also indeterminate form, 0 divided by 0. Thus we would think that the limit does not exist. But if we do some algebra, we can easily simplify it and thus plug in the value x=1 into the simplified expression to get the correct answer. Shown below:

\frac{x^2+8x-9}{x^2-1}\\\frac{(x+9)(x-1)}{(x-1)(x+1)}\\\frac{x+9}{x+1}

<em>Now putting 1 in x gives us the limit:</em>

\frac{x+9}{x+1}\\\frac{1+9}{1+1}=\frac{10}{2}=5

So the answer is 5

3 0
4 years ago
3.102 x 10^3 in standard form
postnew [5]

Answer:

3102x

Step-by-step explanation:

6 0
3 years ago
Please help ASAP! I will mark Brainliest! Please answer CORRECTLY! No guessing! Show your work!
Margaret [11]

Answer:

b

Step-by-step explanation:

you should use mathaway, it's really useful

4 0
3 years ago
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