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3 years ago

Which diagram represents the vector addition C=A+B. Which represents vector subtraction C=A-B?

1 answer:

3 0

If the vectors point towards the same direction, the magnitude of the vector quantities are added as in, C = A + B. If they point towards opposite direction, the magnitudes are subtracted giving a resultant vector equal to C = A - B.

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A square has an area of 4 square centimeters. What is the length of one side, in centimeters?

Lunna [17]

Answer:

2 cm

Step-by-step explanation:

$\sqrt{4 cm^{2}} =2 cm$

7 0

3 years ago

When 8 is added to 3times a certain number, the result is the same as adding 12 to twice the number. find the number

White raven [17]

Answer:

The number is 4

Step-by-step explanation:

Choose a variable for the number.

let the number be "x"

Make an equation with the information from the problem. Break down each part of the problem and change it to the algebraic form (numbers and symbols).

"When 8 is added to" 8 +

"3 times a certain number" 3x

"the result is the same as" =

"adding 12 to" 12 +

"twice the number" 2x

Put the equation back together with each of the parts.

8 + 3x = 12 + 2x

Now isolate "x" to the left side to find the number.

8 + 3x - 2x = 12 + 2x - 2x Subtract 2x from both sides

8 + x = 12 "x" is only on the left side

8 - 8 + x = 12 - 8 Subtract 8 from both sides

x = 4 Solved for the number

Therefore the number is 4.

5 0

3 years ago

A class of 40 students elected a class president. There were 12 votes for Candidate A, and 18 votes for Candidate B. The remaini

scoundrel [369]

Hey You!

12/40 = Candidate A.

18/40 = Candidate B.

12 + 18 = 30

40 - 30 = 10

10/40 = Those who didn't vote.

ANSWER:

12 ÷ 40 = .3 (30%) So 30% voted for Candidate A.

18 ÷ 40 = .45 (45%) So 45% voted for Candidate B.

10 ÷ 40 = .25 (25%) So 25% didn't vote at all.

Those Are Your Answers! ^^^

3 0

3 years ago

Read 2 more answers

What is 3.2 x 10^-4 m/h in centimeters per second?

Iteru [2.4K]

$1m=100cm\\h=3600s\\\\3.2\times10^{-4}\ m/h=3.2\times10^{-4}\times\frac{100}{3600}\ cm/s\\\\=3.2\times10^{-4}\times\frac{1}{36}\ m/s=\frac{3.2}{36}\times10^{-4}\ m/s\\\\=0.888...\times10^{-4}\ m/s=\boxed{8.889\times10^{-5}\ m/s}\\\\Answer:\boxed{b)}$

4 0

3 years ago

Properties of number:(7+5)+1=7+(5+1)

Galina-37 [17]

This property is called the Associative Property

This property states that no matter how you group the numbers, you will still get the same answer

hope this helps

7 0

3 years ago