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Scrat [10]
3 years ago
12

What is the value of 6/x + 2x^2, when x = 3?

Mathematics
2 answers:
ratelena [41]3 years ago
7 0

Answer:

20

Step-by-step explanation:

Just plug 3 into the equation for x:

6/3 + 2(3)^2

2 + 18

2 + 18 = 20


zubka84 [21]3 years ago
7 0

Answer:

6/3 + 2(3)^2

2 + 18

2 + 18 = 20

Step-by-step explanation:


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Which is the solution to the inequality? y + 15 < 3​
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Answer:

y < - 12

Step-by-step explanation:

y + 15 < 3 ( subtract 15 from both sides )

y < - 12

4 0
2 years ago
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Find an equation of the line with the given slope and​ y-intercept.
vlabodo [156]

Answer:

y=-2x-13

Step-by-step explanation:

y-y1=m(x-x1)

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y+13=-2x

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3 0
2 years ago
If the ratio of y to x is equal to 3 and the sum of y and x is 80, what is value of y
Rus_ich [418]

Answer:

y = 60

Step-by-step explanation:

<h3>Step 1: Make sense of the given</h3>

"The ratio of y to x is 3"

This means that, y\div x=3

"The sum of y and x is 80"

This means,  x+y=80

<h3>Step 2: Make use of the facts</h3>

If y\div x=3, then y = (3*x).

We can plug this into the other equation by substitution:

x + (3 * x)=80

This simplifies to:

4x = 80

Which we can solve out and get:
x=20.

<h3>Step 3: Plug and Chug</h3>

We solved for x, but we need the value of y.

So, we go back to the equation we first derived: "y = (3*x)".

And now we substitute the value of x, into this.

y = (3 * (20))

By solving this out, we get:
y=60

So, the value of y is 60.

3 0
2 years ago
What is the probability that the value the standard normal random variable assumes will be greater than 0.64?
neonofarm [45]
For the answer to the question above, I'll provide a computation on my answer to give clarity and understanding to my answer.
<span>P(z> 0.64) = 1- P(z<0.64) </span>
<span>P(z<0.64) = .73891 </span>
<span>P(z> 0.64) = 1- 0.73891 =
So the answer to your question is
0.26109 

I hope my answer helped you. Have a nice day!</span>
5 0
3 years ago
How many factors in the expression 8(x + 4)(y + 4)(z to the second power + 4z + 7) have two terms?
dedylja [7]
(x+4) and (y+4) both have two terms..terms are separated by addition/subtraction operators
8 0
3 years ago
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