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Brums [2.3K]
3 years ago
11

What is the purpose of "completing the square"?

Mathematics
1 answer:
zysi [14]3 years ago
8 0

Step-by-step explanation:

When you complete the square, you change the equation so that the left side of the equation is a perfect square trinomial. But mainly completing the square is a technique that transforms your quadratic equation from an equation that can't be factored into one that can.

You might be interested in
20 copies of the school yearbook together weigh 50 lb what is the weight of each book
dedylja [7]

Answer:

2.5 pounds per book

Step-by-step explanation:

Set up a proportion

20 copies / 50 pounds = 1 copy / x pounds

Cross multiply

20x = 50

Divide both sides by 20

x = 2.5 pounds


I hope this helped and please mark me as brainliest!

6 0
2 years ago
The number of bacteria (b) in a batch of refrigerated food is given by the function b(t) = 20t2 − 70t + 300, where t is the temp
laiz [17]
1. Collect like terms
20t^2 + (-70 + 300)
2. Simplify
20t^2 + 230
4 0
3 years ago
Someone help ASAP please
notsponge [240]

for number 10a is 4,10,16,22

10c is 3,6,12,24

8 0
4 years ago
On his last credit card bill, Frank paid a variable finance rate of 1.5 percent on the first $500, and 1 percent
Nady [450]

Answer:

  • $ 9.91

Explanation:

The amount that Frank paid on his last credit card bill shows how piecewise functions work.

Taking into account that:

  • 1.5 percent = 1.5/100 = 0.015,
  • 1 percent = 1 / 100 = 0.01, and
  • 0.015 × 500 = 7.50,

You can model the amount paid using the piecewise function p(x):

  • p(x)=\left \{ {{0.015x;x\leq500 } \atop {\\}{7.50+0.01(x-500);x>500}} \right.

Thus, your calculation is:

  • x = $741.23

  • p(x) = $7.50 + $ 0.01 × (741.23 - 500) = $ 9.91
3 0
3 years ago
Martha has 8 cubic feet of potting soil and 3 flower pots. She wants to put the same amount of soil in each pot. How many cubic
GrogVix [38]

Answer:

  2 2/3 cubic feet

Step-by-step explanation:

Martha will put 1/3 of the 8 cubic feet in each pot. That is ...

  (1/3)(8 ft³) = 8/3 ft³ = 2 2/3 ft³

Martha will put 2 2/3 cubic feet of soil in each pot.

3 0
3 years ago
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