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nevsk [136]
3 years ago
7

Find x when - 1/2 + x = - 21/4

Mathematics
1 answer:
lbvjy [14]3 years ago
4 0

Step-by-step explanation:

-1 / 2 + x = -21 /4

x = -21/4 + 1/2

x = (-21 + 2)/4

x = -19/4

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Using f(x) = 4x + 6 with the domain of {-1,0,2}, find the range
konstantin123 [22]
The range is the output of the function, and there are many ways to find it and write it. Let's find it first by plugging in all the domain values (domain means input) into the function:
f(-1) = 4(-1)+6=-4+6=2
f(0) = 4(0)+6=0+6=6
f(2) = 4(2)+6 = 8+6=14

We have all of our values. We can either write the range as:
{2, 6, 14}

or, subtract the smallest value from the largest one:
14-2=12

So, there are those ways to write it, there are more, but I think you should stick with the first way because that's how the problem was presented to you. If you have any questions, hmu!

3 0
4 years ago
I will make u a brainliest plz help me
satela [25.4K]

Answer: B) Infinitely many solutions; both equations are equivalent

==============================================================

Work Shown:

x+y = 4 ... start with the first equation

x + (-x+4) = 4 ... replace y with (-x+4)

x-x+4 = 4

0x+4 = 4

0+4 = 4

4 = 4 ... this is a true statement regardless of what x you pick

So there are infinitely many solutions. Each solution (x,y) is of the form (x,-x+4). All solutions fall on the line y = -x+4 which is equivalent to x+y = 4. Note how we add x to both sides.

Or you could start with x+y = 4 and subtract x from both sides to get y = -x+4. Either way, we're dealing with the same equation which is why they both graph out the same line.

6 0
3 years ago
Read 2 more answers
(3x^2)^-3y divided by xy
scZoUnD [109]
The number in the photo should be the answer but the problem might just be that your question was worded incorrectly.

8 0
3 years ago
Given C=n+15, determine the value of C when n=4
puteri [66]

Answer: c=19 and n=4

please mark as brainliest  if it helped

6 0
3 years ago
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Will mark brainliest please help <br>​
snow_lady [41]

Answer:8_1

Step-by-step explanation:

3 0
3 years ago
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