Simplify the expression -2b-6+3b-2

Answers

Answer 1

Answer: The expression can be simplified as:

b-8

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The volume of cylinder is 448 pie cm cube and height 7 cm find its radius

Answers

Answer:

$r =\bf 8 \space\ cm$

Step-by-step explanation:

The formula for volume of a cylinder is as follows:

$\boxed{Volume = \pi r^2 h}$

where:

• r = radius (? cm)

• h = height (7 cm).

Substituting the values into the formula:
$448 \pi = \pi * r^2 * 7$

Now solve for $r$ :

⇒ $r^2 = (448 \pi )/(\pi * 7)$

⇒ $r = √(64)$

⇒ $r =\bf 8 \space\ cm$

$\huge\mathbb{ \underline{SOLUTION :}}$

Given:

$\longrightarrow\bold{Volume= 449 \pi cm^3}$

$\longrightarrow\bold{Height= 7cm}$

$\longrightarrow\sf{V= \pi r^2 h}$

$\longrightarrow\sf{448 \pi= \pi r^2 \cdot 7}$

$\longrightarrow\sf{448=</p><p>7r^2}$

$\longrightarrow\sf{r^2= (448)/(7) }$

$\longrightarrow\sf{r^2=64}$

$\huge \mathbb{ \underline{ANSWER:}}$

$\longrightarrow\sf{r= 8cm}$

If 75 pairs of jeans are sold, what is the company’s profit?

Answers

Revenue: 2x² + 17x - 175
Cost: 2x² - 3x - 125
Profit: 20x - 50

Profit = Revenue - Cost
Profit = 2x² + 17x - 175 - (2x² - 3x - 125)
Profit = 2x² - 2x² + 17x + 3x - 175 + 125
Profit = 20x - 50

x = 75

profit = 20(75) - 50
profit = 1500 - 50
profit = 1450

Answer:

1450

Step-by-step explanation:

Help plz show workWrite the inequality alberacally
graph the inequality on the real number line
Write the inequality in interval notation.
7.x is not equal to 3.
8. x is not equal to 3.
9. x is not equal to 2 and x is not equal to 7.
10.x is not equal to -4 and x is not equal to 0.

Answers

Answer: see below

Step-by-step explanation:

7) Algebraic Inequality: x ≠ 3

--> -∞ < x < 3 and 3 < x < ∞

Graph: ←-----------o-----------→

Interval Notation: (-∞,3) ∪ (3, ∞)

8) This is a duplicate question of #7

9) Algebraic Inequality: x ≠ 2 and x ≠ 7

--> -∞ < x < 2 and 2 < x < 7 and 7 < x < ∞

Graph: ←-------o-------o-------→

2 7

Interval Notation: (-∞, 2) ∪ (2, 7) ∪ (7, ∞)

10) Algebraic Inequality: x ≠ -4 and x ≠ 0

--> -∞ < x < -4 and -4 < x < 0 and 0 < x < ∞

Graph: ←-------o-------o-------→

-4 0

Interval Notation: (-∞, -4) ∪ (-4, 0) ∪ (0, ∞)

Which ones are functions?

Answers

Answer:

1 and 4

Step-by-step explanation:

All the other options have corresponding x-values

Answer:

The first and fourth options

Step-by-step explanation:

If it's a function no input and have more than one output.

A car travels a distance of 110 miles in a time or 2.8 hours what Is its average speed rounded to 1dp

Answers

110/2.8=39.3 miles per hour

Answer:

39.3

its simple

Jim has gotten scores of 99 and 93 on his first two tests. what score must he get on his third test to keep an average of 90 or greater

Answers

Jim must get ≥ 78 score to maintain his average ≥ 90 .

What is an average ?

Every thing has a central tendency , Average is one of the measure of Central Tendency.

It is the mean of all the given numbers and is determined by summing all the numbers or data and then dividing by the total number of data.

It is given that

Jim has gotten scores of 99 and 93 on his first two tests.

He has to maintain an average of 90 or greater

The third test score = ?

Average = (99+93+x)/3

90≤ (99+93+x)/3

270 ≤ (99+93+x)

270 ≤ 192 + x

Therefore x ≥ 78

Jim must get ≥ 78 score to maintain his average ≥ 90 .

To know more about Average

brainly.com/question/24057012

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For the average to be 90,

(99 + 93 + x) / 3 = 90

or 192 + x = 270
or x = 270 - 192 = 78

Jim must score at least 78 in the third test.

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SOLVE X FOR THE EQUATION X/2=17 (PLEASE HELP ME)