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3 years ago

Please answer all of these questions I will give 50 points and brainiest. (The slash means divide) Show all your work, please!

Mathematics

1 answer:

Mnenie [13.5K]3 years ago

5 0

Answer:

1) 14.6

2) 1.36

3) .384

4) 37.2

5) 3.125

6) 4.75

7) 2.5

8) 3.04230769231

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Determine between which two integers the following irrational number lie square root 4 square root 21

Taya2010 [7]

Answer:

Step-by-step explanation:

that what i got

6 0

3 years ago

I’ve been having trouble with PEMDAS and exponents for a while. Could someone walk me through how to do this so maybe I can appl

Brilliant_brown [7]

Answer:

98.

Step-by-step explanation:

Parenthesis

Exponents

Multiplication

Division

Addition

Subtraction

You have to do it in order so you can get the correct answer. Do the problem in the parenthesis first. 6 ÷ 3 = 2.

It should look like this:

7² x 2.

Then, do your exponents. 7² is just basically 7 x 7. It equals 49.

Now, it should look like this:

49 x 2. Multiply 49 x 2, and your answer should be 98.

5 0

4 years ago

Mind if I have some assistance.

pentagon [3]

The answer is -7 because :

a=1, b=1, c=2
Discriminant = b^2 - 4ac
= 1^2 - 4*1*2
= -7

3 0

3 years ago

Please help me!!!!! :)

lora16 [44]

6 / (x + 6) = 10/15

10(x+6) = 90

10x + 60 = 90

10x = 30

x = 3

7 0

3 years ago

Solve the compound inequality 4x – 7 > 5 or 5x + 4 ≤ –6

bija089 [108]

Answer:

inequality form: x $\leq$ -2 or x > 3

interval notation form: (-∞,-2] ∪ (3,∞)

Step-by-step explanation:

I attached a picture that shows all the work. You begin by isolating then solving for x on both sides. Then form a solution using the information found out about x. For example, you can combine the found inequalities for x to solve that x must be GREATER than 3 while being LESS than -2. Using that you can form an line and make a line. Remember, when writing in interval notation form you always begin from the left to the right (in reference) to the number line.

5 0

2 years ago