MATHEMATICS MIDDLE SCHOOL

Consider 8x2 - 48x = -104. Write the equation so that x2 – 6x + (blank) = –13 + (blank)

Answers

Answer 1
Answer:

Write the equation so that:

-6 and -13

Complete the square:

9 and 9

Hope this helps for Edg.
Answer 2
Answer:

Answer:

That (blank) is 9.

Step-by-step explanation:

Please write 8x^2 - 48x = -104, with " ^ " indicating exponentiation.  Thanks.

This sounds like a perfect example of "completing the square."

First, factor 8x^2 - 48x = -104:  8(x^2 - 6x = -13).

If we focus SOLELY on x^2 - 6x = -13, it's just a little easier to "complete the square."  Take half of the coefficient of x (which here is -6), and square that result (which here is (-3)^2, or 9.  Now add 9 both sides of x^2 - 6x = -13:

x^2 - 6x + 9 = -13 + 9.  Note:  The "blank" in the problem statement is 9.  

We could go ahead and solve this, tho' we weren't asked to do so.  Rewrite x^2 - 6x + 9 as (x - 3)^2:

x^2 - 6x = -13 then becomes (x - 3)^2 = 4.  To solve for x, take the sqrt of both sides of this latest result, obtaining x - 3 = plus or minus 2.  Add 3 to both sides to isolate x:  x = 3 plus or minus 2.

Thus, x = 5 or x = 1.  

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A rectangle has an area of 100 cm². The base of the rectangle is 25 cm. What is the height of the rectangle? A) 4 cm b)10 cm c)76 cm D)2400 cm

Answers

Answer:

The answer is the option A

h=4\ cm

Step-by-step explanation:

we know that

The area of a rectangle is equal to

A=bh

where

b is the base

h is the height

In this problem we have

A=100\ cm^(2)

b=25\ cm

Substitute in the formula and solve for h

100=25h

Divide by 25 both sides

h=100/25=4\ cm

Answer:

4cm

Step-by-step explanation:

100cm/25cm=4cm

Evaluate expression -2+12-2^3/2^0*3

Answers

Answer:

2/3

Step-by-step explanation:

Numerator is 12-2-8

Denominator is 1*3

2/3

Seema used compatible numbers to estimate the product of (–25.31)(9.61). What was her estimate?–250
–240
240
250

Answers

If she used rounding properly, she would have gotten -25 x 10 = -250

Answer:

-250

Step-by-step explanation:

just did the test

What is 60 divided by 100 and why? ( I got 0.6 but I'm not sure ) plz hurry

Answers

The answer is 0.6 because you divided 60 and 100 but there not even so your supposed to get a decimal
Your answer is right because when you divide something you are always dividing it out of 100. So this question is pretty easy, 60 / 100 = 0.6 or 3/5 or 6/10. Hope that helps you!

the institution of medicine determined that a man should drink 3 liters of fluid a day and a woman should drink 2.2 liters Mr medicine drink 880 milliliters of water at breakfast and misses medicine drink 700 milliliters how much more it will they both need to drink combined to meet the recommended amounts for the day

Answers

They should drink 3.62 liters

Six friends share 2 pizzas equally how much of a pizza does each friend get

Answers

6/2=3... 
They each get 1/3 of the pizza.
hope this helps.
so if there are six people and they buy two pizza pies. You will have to divide 6 and 2 and get three.
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