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3 years ago

Let x^2−20x=10. What values make an equivalent number sentence after completing the square?

1 answer:

7 0

100 and 110.

You would have to add 100 to both sides. This is because to complete the square, you need to take half of the x term and square it.

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Instructions:select all the correct locations on the tables. andrew wants to purchase a new television with a screen length that

DaniilM [7]

The correct answers are:

5x²+70x+245 ≥ 1050; and

Yes.

Explanation:

Let x be the width of the tablet. Since the width of the TV is 7 inches more than the tablet, the width of the TV would be x+7.

The length of the TV is 5 times the width; this makes the length 5(x+7) = 5x+35.

The area of the TV would be given by

(x+7)(5x+35).

Since Andrew wants the area to be at least 1050, we set the expression greater than or equal to 1050:

(x+7)(5x+35) ≥ 1050

Multiplying this, we have:

x*5x+x*35+7*5x+7*35 ≥ 1050

5x²+35x+35x+245 ≥ 1050

Combining like terms,

5x²+70x+245 ≥ 1050

To see if 8 is a reasonable width for the tablet, we substitute 8 for x:

5(8²)+70(8)+245 ≥ 1050

5(64)+560+245 ≥ 1050

320+560+245 ≥ 1050

1125 ≥ 1050

Since this inequality is true, 8 is a reasonable width.

5 0

2 years ago

CINDY IS A HOSTESS AT A COUNTRY CLUB

stich3 [128]

Answer and Step-by-step explanation:

Add together the hours, then divide the amount earned by the total amount of hours.

3 + 5 = 8

105 ÷ 8 = $13.125 (which would round up to 13.13) [About $13.13] is earned per hour.

#teamtrees #PAW (Plant And Water)

5 0

2 years ago

Then p=3. Use the equation k = 3n to find the value of k when n = 3.

Bad White [126]

Answer:

k = 9

Step-by-step explanation:

n = 3, so substitute 3 for n in the equation

k = 3(3)

k = 9

6 0

2 years ago

The equation ý-x+4 is graphed below. Which equation would intersect this line at the point (4, 6)?

mel-nik [20]

Answer:

Your answer would be A. y=6!

Step-by-step explanation:

Have a nice day! :)

7 0

3 years ago

Daniel had $25 to spend at the fair if the admission to the fair was four dollars in the rides cost $1.50 each what is the great

Sever21 [200]

Answer:

Step-by-step explanation:

25-4=21

21/1.5=14

6 0

3 years ago

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