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4 years ago

Evaluate (a + b)^2 for a = 2 and b = 3.

Mathematics

2 answers:

mixer [17]4 years ago

7 0

(a + b)^2

You are given that a = 2 and b = 3, so plug in 2 for a and 3 for b in the expression.

Now your expression should look like this:

(2 + 3)^2

Solve within the parentheses first.

(5)^2

Square 5.

(5)^2 = 25

Your answer to this problem is 25.

shepuryov [24]4 years ago

3 0

Hope this helps you!!!

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A 2-liter container holds more than a 3,000-milliliter container. True or false?

tiny-mole [99]

To consider whether this statement is true or not

⇒ must determine the number of milliliters in a liter

⇒ 1 Liter = 1000 milliliter

To compare both containers, lets set both containers in terms of milliliters

Container 1 --> 2 Liter Capacity --> 2000 milliliter
Container 2 --> 3000 milliliter

By looking at the data

⇒ the 3000-milliliter container holds more than the2-liter container

Thus, the statement: A 2-liter container holds more than a 3,000-milliliter container

⇒ False

Answer: False

Hope that helps!

6 0

2 years ago

Read 2 more answers

A population of small bottles and their contents has the following weights (in grams): 4, 2, 5, 4, 5, 2, and 6. What is the vari

Ahat [919]

Answer:

D. 2.33.

Step-by-step explanation:

Given;

the weight distribution of the bottles = 4, 2, 5, 4, 5, 2, and 6

sum of the weights = 28

the mean (x) = 28/7

x = 4

the sum of square of the mean deviation is calculated as:

= (4 - 4)² + (2 - 4)² + (5 - 4)² + (4 - 4)² + (5 - 4)² + (2 - 4)² + (6 - 4)²

= 0 + 4 + 1 + 0 + 1 + 4 + 4

= 14

$the \ variance \ is \ calculated \ as:\\\\\sigma ^2 = \frac{\sum (x-\bar x)^2}{n-1} \\\\\sigma ^2 = \frac{14}{7-1} = \frac{14}{6} = 2.33$

Therefore, the correct answer is D

4 0

3 years ago

Help Please.Need need help with Explanations please

lyudmila [28]

Here is your answer

Cars produced in one week= 3120

so, cars produced in 4 weeks= 4×3120

= 12480

From the given options nearest estimate is

C) 12,000

HOPE IT IS USEFUL

3 0

3 years ago

Read 2 more answers

can some one answer this for 100 points and brainlessly can someone write it out on paper so i can copy it you have to find the

const2013 [10]

Answer:

14 ° ; 83 °

Step-by-step explanation:

( 14x - 1 )° + ( 2x + 2 )° = 97°

14x - 1 + 2x + 2 = 97

16x = 96

x = 6

m∠BCA = ( 2 × 6 + 2 )° = 14 °

m∠ABC = ( 14x - 1 )° = 83 °

5 0

3 years ago

Please answer,Part A

swat32

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2 years ago