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3 years ago

If f(x) = 2(x)^2+5 sqrt (x-2). complete the following statement. f(2)=_____

Mathematics

2 answers:

nataly862011 [7]3 years ago

8 0

Answer: 82

Step-by-step explanation:

apex

dangina [55]3 years ago

4 0

Answer:

The value of function at x = 2 is 8.

Step-by-step explanation:

Given : Function $f(x)=2x^2+5\sqrt{x-2}$

We have to find the value of given function at x = 2 , that is f(2)

Consider the given function $f(x)=2x^2+5\sqrt{x-2}$

To find the value f(2) put x = 2 in given function ,

We have,

$f(2)=2(2)^2+5\sqrt{2-2}$

Simplify, we have,

$f(2)=8+5\sqrt{0}$

Simplify further, we have,

$f(2)=8$

Thus, the value of function at x = 2 is 8.

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2 years ago

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2 years ago

Solve for y 2x+y-3z=5

Elza [17]

Answer:

Step-by-step explanation:

Isolate the term of x and y from one side of the equation.

<u>To solve:</u>

The value of y.

$\Longrightarrow: \sf{\sqrt{2x+y-3z}=5}$

<u>First, you have to subtract by 2x-3z from both sides.</u>

$\Longrightarrow: \sf{2x+y-3z-\left(2x-3z\right)=25-\left(2x-3z\right)}}$

<u>Solve.</u>

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I hope this helps, let me know if you have any questions.

4 0

1 year ago

Read 2 more answers

Andre says 10x + 6 and 5x + 11 are equivalent because they both equal 16 when x is 1. Do you agree with Andre?

Serga [27]

Answer:

No, They are not equivalent

Step-by-step explanation:

The two expressions are only said to be equivalent if they are the same regardless of whatever value the variable(s) is.

The variable in this question is x.

To prove this, we equate both expressions:

$10x + 6 = 5x + 11$

$10x - 5x = 11 - 6\\\\\\5x = 5\\\\\\x = 1$

This shows that they have the same value ONLY when x is 1.

This is why Andre says that they are equivalent, but they are not.

8 0

2 years ago

Choose the slope-intercept equation of the line that passes through the point (4, -6) and is parallel to y = - 1/2 x + 5. (3 poi

telo118 [61]

First, it is important to understand that parallel lines have the same slope. Therefore, based on the formula y=mx+b in which m represents slope and based on the equation y=-1/2x+5, the slope of the unknown line is also -1/2. Then, there are two different ways to solve this problem using different formulas.

The first method to find the unknown equation is easy but not widely known. We can use the point slope formula which is (y-y1)=m(x-x1) in which we can plug a point and slope to find the equation. When we plug in the values given, we get y+6=-1/2(x-4) or y+6 =-1/2x+2 which simplifies to y=-1/2x-4.

The other method is using the slope intercept form or y=mx+b. When we plug in our slope and our point, we get -6=-1/2*4+b or -6=-2+b so b must equal -4, therefore we have all the information we need to plug values into y=mx+b. When we plug in our slope and y-intercept, we get y=-1/2x-4 which is the answer.

I hope this helps!

7 0

2 years ago