Vector addition obeys rules that are different from those for the addition of two scalar quantities.

a. True
b. False

Answer:

y = -1

x = 1

Step-by-step explanation:

as I have done the equation in the picture, I decided to re-write the second equation so that it's easier for me to use.

Answer:

-6x-9=  1

2x^5-x^4+2x^3-6x^2+2x+4= 5

-4x^3-10^2+7x+5= 3

Step-by-step explanation:

i just did and everything was right

Answer:

it's D

Step-by-step explanation:

it said that its more then which equals to a greater sign (>).

Answer:

1.2x10^-11

You never start with a zero so you move the decimal 11 spots the right which makes it negative

Answer:

~60•the length of PQ . , the length of QR is 90• Tell me if I'm wrong . sorry if I got it wrong .~

Answer:

9400.11

Step-by-step explanation:

Answer:

The answer is C and E.

Step-by-step explanation:

I just took the assignment and it is C and E.

The expression that represents the population after 5 decades is

100,000 x [tex]2^5[/tex] or 100,000 x 2 x 2 x 2 x 2 x 2.

Options C and E is the correct answer.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 8 is an equation.

We have,

The population of the city = 100,000

Population doubles every decade.

This means,

Population after 1 decade.

= 100,000 x 2

= 200,000

Population after 2 decades.

= 200,000 x 2 x 2

= 800,000

We can write an expression for the population after x decade.

= 100,000 x [tex]2^x[/tex]

The population after 5 decades.

= 100,000 x [tex]2^5[/tex]
= 100,000 x 2 x 2 x 2 x 2 x 2

= 100,000 x 32

= 3200,000

Thus,

The expression is 100,000 x [tex]2^5[/tex] or 100,000 x 2 x 2 x 2 x 2 x 2.

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Answer:

90 degrees

Step-by-step explanation:

its a 45-45-90 triangle

Answer:

2.25 lbs

Step-by-step explanation:

Answer:

2.25

Step-by-step explanation:

9/2 = 4.5

4.5/2 = 2.25

Answer:

2+3 = 5

4+1 = 5

1*5=5

Step-by-step explanation:

Answer: True

The set of whole numbers is {0, 1, 2, 3, 4, 5, ...}

The set of natural numbers is {1, 2, 3, 4, 5, ...}

Both sets describe numbers that are positive and without any fractional or decimal component. The only difference is that 0 is included in the first set, but exclude from the second. If you want to include negative whole numbers as well, then you'd use the set of integers.

The given statement is true.

A number is an arithmetic value used to represent quantity. Hence, a number is a mathematical concept used to count, measure, and label. Thus, numbers form the basis of mathematics.

The statement given is says that, the set of whole numbers includes zero, but the natural numbers do not.

So, if we see the definition of both types of numbers, we can say that the whole numbers are the natural starting from 0, and the natural numbers are the one which includes only counting numbers used in our daily life.

Hence, the given statement is true.

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Answer:

The distance of the line segment AB =17

Step-by-step explanation:

Explanation:-

Given points are X( -8,5) and Y(7,-3)

The distance of the line segment

       AB = [tex]\sqrt{(x_{2}-x_{1} )^{2} +(y_{2} - y_{1} )^{2} }[/tex]

      [tex]AB = \sqrt{(7-(-8) )^{2} +(-3-5 )^{2} }[/tex]

    [tex]AB = \sqrt{(7+8)^{2} +(-5-3)^{2} }[/tex]

    AB = [tex]\sqrt{225+64}[/tex]

   AB = 17

The distance of the line segment AB =17

Answer:

1 acute and 2 right (the last option)

Answer:

75% decrease

Step-by-step explanation:

To calculate the percentage increase:

First: work out the difference (increase) between the two numbers you are comparing.

Increase = New Number - Original Number

Then:  divide the increase by the original number and multiply the answer by 100.

% increase = Increase ÷ Original Number × 100.

If your answer is a negative number, then this is a percentage decrease.

To calculate percentage decrease:

First: work out the difference (decrease) between the two numbers you are comparing.

Decrease = Original Number - New Number

Then: divide the decrease by the original number and multiply the answer by 100.

% Decrease = Decrease ÷ Original Number × 100

If your answer is a negative number, then this is a percentage increase.

Answer:

13 inches

Step-by-step explanation:

Shaded area is a triangle.

area of triangle = 0.5(base)(height) = 0.5(16)(y) = 104

y = 13 inches

Answer:

Step-by-step explanation:

p + n + d + q = 25

Put everything into quarters.

p and q are equally likely to be drawn

q + n + d + q = 25

There are 3 times as many nickels as quarters

n = 3q

q + 3q + d + q = 25

There is 25% more dimes than quarters.

d = 1.25 q

q + 3q + 1.25q + q = 25

6.25 q = 25

q = 25/6,25

=====================

q = 4

p = 4

d = 1.25 * 4 = 5

n = 12

Answer:

x=62

Step-by-step explanation:

all angles should add to 180

180-56=124

124÷2=62

Answer:

Step-by-step explanation:

1st notice that two of the sides are the same length?   ( isosceles ) that mean the two angles at the "base" which is the side that both of the same size legs tie into... that's the side that is 4.5 in the picture.  soooo if both of those angles are the same.. and we know that the angles are going to add to 180 then....  we can say    the the 56° is the same as the one at the other end of the 4.5 side (base) so  2*56°=112°

and then 112° + x = 180°

x = 180-112

x = 68°

:)

Answer:

can you take a picture so I can see I'm trying to help you

Answer:

Whats our options?

Step-by-step explanation:

Answer:

you have to show the statements.

Step-by-step explanation:

Answer:

-2.17

Step-by-step explanation:

Answer:

2/6 and 4/12

Step-by-step explanation:

When you reduce both of these fractions, they come out to 1/3.

Dividing both terms of 2/6 by 2, the greatest common factor (GCF), would equal 1/3.

And dividing both terms of 4/12 by 4, which is the GCF in this case, would equal 1/3.

5x-14=3x

Then you just solve for x

X being 7

Hope this helped!

Answer:

1 / 7

Step-by-step explanation:

Given :

Number of shirts in closet = 10

Number of striped shirt = 5

Number of plaid = 3

Probability of choosing 2 plaid shirts and 2 stripped shirt

Probability = required outcome / Total possible outcomes

Total possible outcomes = 10C4

Required outcome :

2 plaid shirt from 3 = 3C2

2 stripped shirts from 5 = 5C2

Hence,

P(choosing 2 plaid and 2 stripped shirt) :

(3C2 * 5C2) / 10C4

Recall:

nCr = n! / (n-r)!r!

Using calculator :

(3C2 * 5C2) / 10C4

= (3 * 10) / 210

= 30 / 210

= 1 / 7

Answer:

Step-by-step explanation:

Answer: 10.5/6 - 6.5/6 = 2/3

Step-by-step explanation:

The answer is 10.5/6 - 6.5/6 = 2/3

Answer:

247000000

Step-by-step explanation:

10^8 = 10×10×10×10×10×10×10×10

=100000000

or, downloaded=100000000×2.47

=27000000

Answer: 453 more downloads   1,547 more downloads

7,549 more downloads   435 more downloads  ( it will be one of these answers pls help me im doing a quiz) ~cries cutely~

Step-by-step explanation:

An app was downloaded 3,548 times last week. This week the app was downloaded 4,001 times. How many more downloads did the app have this week than last week

Answer:

D. 20 cm²

Step-by-step explanation:

The second object is 2 times bigger than the first object. To solve this, take the original area and multiply it by 2:

10 · 2 = 20

Therefore, the second object has an area of 20 cm².

17 x 9 = 153

Step-by-step explanation:

the answer is 153

Answer:

40%

Step-by-step explanation:

Move the period over twice then place the percentage sign where you moved the period to

Answer:

40%

multiply both numerator and denominator by 100. You do this to find a equivalent fraction having 100 as the denominator. The fraction is 40 over 100, 100 represents the whole thing 40 is the part so it's basically part over whole. 40% is your answer. I'm sorry if my explanation made no sense