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lord [1]
3 years ago
7

Solve the quadratic equation by factoring. 9x^2+24x+20=4

Mathematics
1 answer:
const2013 [10]3 years ago
5 0

D. -4/3

Let's solve your equation step-by-step.

9x2+24x+20=4

Step 1: Subtract 4 from both sides.

9x2+24x+20−4=4−4

9x2+24x+16=0

Step 2: Factor left side of equation.

(3x+4)(3x+4)=0

Step 3: Set factors equal to 0.

3x+4=0 or 3x+4=0

x= −4 /3

Hope This helps

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f(x) = -2|x| + 1

Step-by-step explanation:

The graph shifts one unit up the y axis since there's a value outside the absolute value which directly adds 1 to it.

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2 years ago
At president Lincoln's inauguration in 1861, the newspaper headlines. stated there were about 30,000 people in attendance. if th
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3 years ago
A customer states that she was shorted in change by receiving only 23 cents change from $3.00
Artemon [7]

Answer:

First, I would check and see if she was correct. If she wasnt, I would simply show her why she was incorrect. If I was to accidently short her, I would give her the money and move on with my day. if she refused to leave after showing her that I gave her the correct amount of money, she would probably call for the manager. I'd get the manager, explain what happened, and the annoying customer would most likely get kicked out of the store.

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8 0
3 years ago
A box weighs 90 grams.<br>Write down, in terms of b, the weight of b boxes.​
Drupady [299]

Answer:

Let B = the weight of box B

Let 2B = the weight of box A

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B + 2B + 2B + 30 = 640

5B = 610

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hope this helps

also join my zoom  meeting id -941 6345 0903 pass- 778CF8

7 0
3 years ago
Find the value of t in the diagram
12345 [234]

In a trapezoid, with bases b and B and height h, the area is given by


A = \frac{(B+b)h}{2}


In your case:


B = BC = 3t

b = AD = t

h = AB = t


so, the formula becomes


A = \frac{(3t+t)t}{2} = \frac{4t^2}{2} = 2t^2


Since the area is 50 \text{cm}^2, we have


2t^2 = 50 \iff t^2 = 25 \iff t = 5

5 0
3 years ago
Read 2 more answers
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