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3 years ago

Pls help pls pls pls pls

Mathematics

1 answer:

alexira [117]3 years ago

8 0

Answer:

B' - (3,1)

C' - (3,8)

D' - (6,-1)

Step-by-step explanation:

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Which is a zero of the quadratic function f(x) = 9x2 - 54x – 19?<br> x= 1/3 <br> x=3 1/3

anygoal [31]

Answer:

x =1/3

Step-by-step explanation:

the zero quadratic function is x=1/3

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3 years ago

If v = -5, what does 4v - 3 equal? (Explain aswell)

OleMash [197]

Answer: Answer= -23

Step-by-step explanation: plug in -5 for v. THen multiply 4 and -5 which should give you -20. then subtract -3 from -20 which will give you -23. :)

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3 years ago

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tamaranim1 [39]

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2 years ago

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A. The sum of Andre and Brandon scores on a math quiz is 180. Andres score is 2 times more than 30 less than Brandon score. Find

pantera1 [17]

A)

a+b=180 and a=2(b-30) using this in the first equation gives you:

2(b-30)+b=180

2b-60+b=180

3b-60=180

3b=240

b=80 so a=100

Andre's score was 100 and Brandon's score was 80.

b)

100x-200>50x-75 subtract 50x from both sides

50x-200>-75 add 200 to both sides

50x>125 divide both sides by 50

x>2.5

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3 years ago

What is the value of b? IT 3b b+52 Н G j b =

cluponka [151]

b=26

Explanation

Step 1

we have two equals triangles, because

$\begin{gathered} HG=GJ \\ \text{and} \\ GI\text{ is a common side for both triangles} \end{gathered}$

then, the hypotenuses are equal

$3b=b+52$

"is step 1 clear?

Step 2

solve the equation

$\begin{gathered} 3b=b+52 \\ \text{subtract b in both sides} \\ 3b-b=b+52-b \\ 2b=52 \\ \text{divide both sides by 2} \\ \frac{2b}{2}=\frac{52}{2} \\ b=26 \end{gathered}$

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2 years ago