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3 years ago

. What is the value of the expression? Use the correct order of operations. 4 x 5 + 9 - 2 x (6 + 1)

Mathematics

2 answers:

Over [174]3 years ago

8 0

Answer: the value is 15

Step-by-step explanation:

scoray [572]3 years ago

3 0

Answer:

The answer is 15

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A school dance committee is made up of 2 freshman, 4 sophomores, 2 juniors, and 2 seniors.

qaws [65]

Answer:

4 and 6.

Step-by-step explanation:

There are 4 different grades represented, so for the first question, there are 4 ways that the students can sit if they must sit together by grade.

For the second question, there are 3 grades other than senior level, so it starts with 3 ways that the students can be seated. 3 ways x 2 students per way = 6 ways

7 0

3 years ago

What is the simplified form of the quantity 1 over b minus 1 over a all over the quantity 1 over b plus 1 over a?

jolli1 [7]

Option B: (b-a)/(b+a) is the correct answer

Step-by-step explanation:

The given expression is;

$\frac{\frac{1}{b}-\frac{1}{a}}{\frac{1}{b}+\frac{1}{a}}$

First of all we have to take LCM in both numerator and denominator

So,

$=\frac{\frac{b-a}{ab}}{\frac{b+a}{ab}}$

The reciprocal of the denominator will be multiplied with the numerator for simplification

So,

$=\frac{b-a}{ab} * \frac{ab}{b+a}\\= \frac{b-a}{b+a}$

Hence,

Option B: (b-a)/(b+a) is the correct answer

Keywords: Fractions, expressions

Learn more about fractions at:

#LearnwithBrainly

4 0

3 years ago

Evaluate. 33 + 11 - 10 ÷ 2 × 4 w = a0

Veronika [31]

Answer:

Step-by-step explanation:

33 + 11 - 10 ÷ 2 × 4

Division is first.

33 + 11 - 5 × 4

Multiplication.

33 + 11 - 20

Add or subtract.

44 - 20

= 24

6 0

3 years ago

Write this expression in simplified terms. <br> 3×√3×6×√6

Andrej [43]

Answer:

54√2

Step-by-step explanation:

4 0

2 years ago

I know the answer I just don’t know how to solve it steps by step.

Snezhnost [94]

Answer:

-0 (3-2)

x = vertex x2

answer

Step-by-step explanation:

3 0

4 years ago