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dybincka [34]
3 years ago
7

Help plz it’s algebra 2 vertex forms of quadratic function

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
8 0

Answer:

I did the entire thing I attached the picture for it !! hope this helps !!

I didnt do 5 and 7 cause I forgot how to do those!!

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Roy and Sam start solving the equation as follows.
denpristay [2]

Answer:

The correct option is D.

Step-by-step explanation:

The given equation is

-3x+4=5x-6

According to the addition property of equality a=b and a+c=b+c are equivalent equations.

Use addition property of equality, add 3x on both the sides.

-3x+4+3x=5x-6+3x

4=8x-6

Therefore Sam's work is incorrect because he make calculation mistake.

According to the subtraction property of equality a=b and a-c=b-c are equivalent equations.

Use subtraction property of equality, subtract 5x from both the sides.

-3x+4-5x=5x-6-5x

-8x+4=-6

Therefore Roy's work is correct because he used subtraction property.

Option D is correct.

7 0
3 years ago
Tony hit 9 out of 15 pitches at baseball practice yesterday. The following day at practice 45 pitches were made. How many pitche
In-s [12.5K]

Answer:

18 pitches.

Step-by-step explanation:

I'm assuming the "9 out of 15" is the fraction of pitches Tony hit at baseball practice.

Hence, Tony missed 6 out of 15 pitches.

6/15 * 45

= 6 * 3

= 18 pitches.

Hope this helped!

6 0
3 years ago
Read 2 more answers
The interest rate r required to increase investment p to amount a in t years is found using the formula r=(a/p)^1-t - 1. Find th
valkas [14]
The interest rate would be 20%.

The formula is derived from the compound interest formula

A=p(1+r)^t.

We want to isolate r in this equation to rewrite the formula.  The first thing we would cancel, outside parentheses, would be p; divide both sides by p and we have

\frac{A}{p}=(1+r)^t

We want to cancel the exponent, t, next.  We can raise a power to its reciprocal to undo it; for example, raising a squared amount to the 1/2 power will undo the exponent.  We will raise both sides of this to the 1/t power:

(\frac{A}{p})^{\frac{1}{t}}=1+r

Now we cancel the 1 by subtracting, giving us

(\frac{A}{p})^{\frac{1}{t}}-1=r

Using this formula, we plug in 3600 for A, 2500 for p and 2 for t:


4 0
4 years ago
What is<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B3%7D%20%20%5Ctimes%20%20-%2011%20%5C%5C%20" id="TexFormula1" ti
Ludmilka [50]
-22/3




................................

..
4 0
4 years ago
If U={1,2,3,4,5,6,7,8},A={1,2,3,4},B={3,4,5,6,7}.find(AUB)'​
EastWind [94]

Answer:

12345678910

iya lina beb

7 0
3 years ago
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