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3 years ago

Peter added the following fractionsIs Peter correct?

Mathematics

2 answers:

nexus9112 [7]3 years ago

8 0

Answer:i think it would most likely be c

Step-by-step explanation:

since you can only add denominators when they are the same number

NikAS [45]3 years ago

8 0

I think the answer is c

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Whats the discontinuity of the function f(x) =x^2-3x-28 over x+4

kakasveta [241]

Factor top
(x-7)(x+4)
we can factor out the (x+4) on top and bottom to get
f(x)=x-7
but wait, don't forget the x+4 (siince we factored it out, there is a hole there)
set that equal to 0
0=x+4
-4=x

evaluate f(-4) in new
f(-4)=-4-7
f(-4)=-11

so the hole is at (-4,-11)
the point of discontinuity is at (-4,-11)

4 0

3 years ago

Somebody please help asap

Elena L [17]

Answer:

B. $4x^2 + \frac{3}{2}x - 7$

Step-by-step explanation:

$f(x) = \frac{x}{2} - 3$

$g(x) = 4x^2 + x - 4$

(f + g)(x) = f(x) - g(x)

= $\frac{x}{2} - 3 + 4x^2 + x - 4$

Add like terms

$= 4x^2 + \frac{x}{2} + x - 3 - 4$

$= 4x^2 + \frac{3x}{2} - 7$

$= 4x^2 + \frac{3}{2}x - 7$

6 0

3 years ago

Henry's current age is 10 times Justin's current age. In 6 years Henry's age will be 4 times Justin's age. Which system of equat

Anna11 [10]

The answer is C: H=10J
H+6=4(J+6)

8 0

3 years ago

Someone please help will mark brainliest thank you so much!

pychu [463]

I believe it is Since the square root of 9 = 3 and the square root of 16 = 4 it is known the the square root of 12 is in between 3 and 4. Really hope this helps!

6 0

3 years ago

Simplify the expression by combining like terms. 22+5m−4m+7n−8

vfiekz [6]

Answer:

14 + 1m + 7n

Explanation:

I combined like terms 5m - 4m and 22 + -8. After I simplified the equation from there.

<h3>·Hope I helped, -SunnySideHelper·</h3>

7 0

3 years ago

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