MATHEMATICS HIGH SCHOOL

Donna has 8 CDs that she is going to give away. She lets her best friend choose 2 of the 8 CDs. How many different groups of 2 CDs are possible?

Answers

Answer 1

Answer: There are 4 different possible group of 2

Answer 2

Answer:

Answer:

It's 28.

Step-by-step explanation:

Just got this wrong so it showed me the answer.

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Points points points

Answers

The answer is A. informed decisions.
I hope this helps...

Answer:

The answer is A.

Karen's favorite movie is 123.13 minutes long. Her second-favorite movie is 96.75 minutes long. How much longer is herfavorite movie?

Answers

answer: 123.13-96.75
26.37

Answer:

Her favorite movie is 26.38 minutes longer

Step-by-step explanation:

All you have to do is subtract 123.13 by 96.75.

123.13 - 96.75= 26.38

Jamal borrowed $625 from his brother 8 years ago. Jamal repaid his brother in full with $830. What simple annual interest rate did Jamal pay?A. 4.0%
B. 4.1%
C. 4.2%
D. 4.3%

Answers

Answer: b 4.1%

Step-by-step explanation:

B. 4.1%. ...................

What is 5.2E11 in scientific notation

Answers

5.2E11 is the equivalent of scientific notation when you use a calculator.

5.2 x 10¹¹ is its written form.

5.2 is the coefficient.
10 is the base
11 is the exponent

5.2 x 10¹¹ in standard form is 520,000,000,000

You're going to multiply by a factor of 11 or move the decimal place 11 places over to the right. Your answer is 520,000,000,000 or 520 billion.

Discriminant to determine the nature of the roots of x2 + 2x + 5 = 0. a) No real roots
b) One real root
c) Two distinct real roots

Answers

discrimant = b^2 - 4ac = 2^2 - (4 x 1 x 5) = 4 - 20 = -16
Therefore, there is no real roots.

What is the correct classification of 7x2 + 9x + 4? Select one of the options below as your answer:A. monomial B. binomial C. trinomial

Answers

Answer:

The correct classification is trinomial.

Step-by-step explanation:

Given the equation

$7x^2+9x+4$

we have to choose the options.

Monomial is an algebraic expression containing one term, binomial with two terms and trinomial with 3 terms.

Now, the given expression

$7x^2+9x+4$

consisting of 3 terms therefore called trinomial.

Hence, the correct classification is trinomial.

B. binomial

this expression has two terms (whole numbers and a x-term

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