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N76 [4]
2 years ago
10

* 1. Find the two roots X7 and x2 of the quadratic equation x2 – 8x + 12 = 0. Enter y

Mathematics
1 answer:
dezoksy [38]2 years ago
8 0

9514 1404 393

Answer:

  x = 2, x = 6

Step-by-step explanation:

The quadratic can be factored as ...

  x^2 -8x +12 = 0

  (x -2)(x -6) = 0

Solutions are the values of x that make these factors zero:

  x -2 = 0   ⇒   x = 2

  x -6 = 0   ⇒   x = 6

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On a map, the scale shown is 1 inch: 20 miles. If a city is 900 square miles, what is the area of the city on the map?
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Answer:

2.25 square inches

Step-by-step explanation:

we know that

The scale is 1\ inch: 20\ miles

That means

1 inch on a map represent 20 miles in the city

so

An area of (1)(1)=1\ in^2 on a map represent an area of (20)(20)=400\ mi^2 in the city

Applying proportion

\frac{1}{400}\ \frac{in^2}{mi^2}=\frac{x}{900}\ \frac{in^2}{mi^2}\\\\x=900/400\\\\x=2.25\ in^2

3 0
3 years ago
Granny Smith is making strawberry jelly. She fills 6.5 ounce jars to give as gifts. Granny was able to fill 9.5 jars. How many o
ehidna [41]
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5 0
3 years ago
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vodka [1.7K]

Answer:

value of x is B 5.5

Step-by-step explanation:

B 5.5 value of X

7 0
2 years ago
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If a piece of ribbon is 6 and 1 over 4. feet long, how long is it in inches?
timama [110]
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3 years ago
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C.
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