MATHEMATICS HIGH SCHOOL

Consider the equation x2 + 8x = 10. 1. Show how to solve the equation by completing the square.
2. Show how to solve the equation by using the quadratic formula.
3. Round solutions to the nearest tenth if needed.

Answers

Answer 1
Answer: ad like terms such as the question states this statement is true

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You plan to buy $12,000 in computers at a local chain store. There are two stores located about the same distance from your office but in different cities with different tax rates. One city has a tax rate of 7% and the other has a tax rate of 8.5%. What percent can you save by going with the lower tax rate? Round your answer to the nearest tenth of a percent, if necessary.

Answers

lets calculate the taxes that would been payed at each city:
city1 = 12000(7%) = 12000(0.07) = 840
city2 = 12000(8.5%) = 12000(0.085) = 1020
So if you go to city1 instead of city2, you save 1020 - 840 = 180
So you would save $180 from $12000, that is:
 180 out of 12000
= 180/12000
= 0.015
and that is the 1.5%, that is what you could save

I don't get this one look at the attachment and help me?

Answers

The first three are true statements. The last one is false because anything divided by 0 is undefined. 
A)False
B)True
C)True
D)True

C(squared)L(squared) + 100v(squared) = 100c(squared)
I have to solve for L

Answers

first subtract 100v² from both sides to get:

C²L²=100c²-100v²

Then divide both sides by C²:

L²=(100c²-100v²)/C²

Then take the square root of both sides:

L=+ or - the square root of (100c²-100v²)/C²

Answer:

L = ±√( (100c² - 100v²) / C² )

Step-by-step explanation:

You're just doing reverse PEMDAS.

So first get all the values correlated with L on one side and the non-L values on the other side using subtraction/addition.

Then remove all coefficient using multiplication/division.

Then take the sqareroot to get rid of the squre on the v.

Remember that taking squareroot gives a ± answer because

(x)² = (-x)²

What times what gets 6.25 but adds up to5

Answers

2.5 and 2.5 add up to 5, and multiply to get 6.25

Final answer:

The question seeks two numbers which when multiplied result in 6.25 and, when added, give a total of 5. These numbers are 2.5 and 2.5.

Explanation:

The question is seeking for two numbers which when multiplied (times) result in 6.25 and when added (adds up) give a total of 5. These numbers are 2.5 and 2.5. This is because 2.5 times 2.5 equals 6.25, and also 2.5 + 2.5 equals 5.

To illustrate, consider this:

  • 2.5 * 2.5 = 6.25 (multiplication)
  • 2.5 + 2.5 = 5 (addition)

Therefore, the numbers you are looking for are 2.5 and 2.5.

Learn more about Number Properties here:

brainly.com/question/18625920

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Which of the following is a name for an isometry that moves or maps every point of the plane the same distance and direction? select all that applie flip, glide, translation, slide, rotation

Answers

Translation is the isometry that moves or maps every point of the plane the same distance and direction. There are several types of translation which include: glide and slide.

So, the type isometry that would apply are the following:
GLIDE, TRANSLATION, SLIDE

Answer:

The translation is the isometry that moves or maps every point of the plane at the same distance and direction. There are several types of translation which include: glide and slide.

So, the type of isometry that would apply is the following:

GLIDE, TRANSLATION, SLIDE

If 1 gallon equals 3.8 liters, how many liters are in 12 gallons? Round your answer to the nearest tenth.

Answers