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2 years ago

13

Well y’all thanks for helping me out

1 answer:

Yuri [45]2 years ago

7 0

Answer: 2 because F(5) complies with the 2nd function.
*Just follow the function the the number satisfies!!*
(WORK SHOWN BELOW)

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for the following two numbers, find two factors of the first number such that their product is the first number and their sum is

zepelin [54]

You can make some algebraic equations and solve it.
The first would be:
$x \times y = - 21$
The second would be
$x + y = - 4$
You can then rearrange the second into
$x = - 4 - y$
And subsitute it into the first like so:
$( - y - 4) \times y = - 21$
After that, distribute the y into the parantheses.
${ - y}^{2} - 4y = - 21$
Subtract the 21 on both sides and multiply by -1 on both sides:
${ - y}^{2} - 4y + 21 \\ {y}^{2} + 4y - 21$
You then can factor it into:
$(y + 3) \times (y - 7) = 0$
With Zero Product Property, we can determine y to be either -3 and 7. Since the variables are interchangable, you can say the same about x, just that whatever x is, y must be the other value.

Thus, the answer is 7 and -3.

5 0

3 years ago

Their can u please solve.

Bingel [31]

Answer:

$\frac{45}{9} = 5$

4 0

2 years ago

Read 2 more answers

PLZ HELP WILL GIVE BRAINLIEST 50+25 POINTS!!!<br><br>Graph the following piecewise function.

Luda [366]

We need to graph the given piecewise function.

To graph any piecewise function we do that into parts

Let's graph upper part first which is

$f(x)=x^2+2$

restriction for that is $-5 \leq x < 3$

that means we are free to pick any number for x that is between -5 and 3, including 3.

So we will find few points by plugging random numbers between -5 and 3.

Let's use x=-5, we get:

$f(-5)=(-5)^2+2=25+2=27$

so first point is (-5,27).

similarly we can find other points like (0,2), (2,6), (-1,3) etc.

Now we join those points by a curved line.

$-5 \leq x$ means we use a close circle at -5

x<3 means use open circle at 3

------------

Repeat same process for 2nd part f(x)=x-4

choose any number between 3 and 7 like x=3, 4 etc

so we get points (3,-1), (4,0) etc

Now graph them

So the final graph will look like:

5 0

2 years ago

Read 2 more answers

What is the value of this expression -15-(-4)+17

Doss [256]

$\sf\implies \: - 15 - ( - 4) + 17$

$\sf \implies \: - 15 + 4 + 17$

$\sf \implies \: - 15 + 21$

$\boxed{ \tt \: ans \dashrightarrow 6}$

<h3>Remember these laws of integers:</h3>

(+)(-)=(-)
(-)(+)=(-)
(-)(-)=(+)
(+)(+)=(+)

7 0

2 years ago

Read 2 more answers

What is the answer? <br><br><br> A: 5/20<br><br> B:5/11<br><br> C: 19/20<br><br> D: 1 9/20

Kaylis [27]

The answer is D.
Find common factors of denominators.
15+10+4/20= 29/20= 1 9/20 :)

7 0

3 years ago