What does it mean to reason mathematically?

Answer:

$16.10

Step-by-step explanation:

All you have to do is do 80.50/5 since if they all cost the same amount, and since there are 5. Anyway 80.50/5 is 16.1, or $16.10.

Answer:

a. iii

b. ii

c. i

d. v.

e. iv

Step by Step:

Answer:

3x+20+(3x-20)=180(linear pair)

or,3x+20+3x-20=180

or6x=180

orx=180÷6

x=30

D=3x+20

=3×30+20

=90+20

=110

A=3x-20

=3×30-20

=90-20

=70

B=x+20

=30+20

=50

Answer:

range = 9-1 or 8

Step-by-step explanation:

Answer:

Circumference: 18.84

Area: 28.26  

Step-by-step explanation:

Area formula: pi*r^2

For the area:

3.14*3^2

3.14*9

28.26m^2

Circumference formula: 2 * pi *r

For the circumference:

2*3.14*3

6*3.14

18.84 m

Good luck on your test

Answer:

The answer is A. y = 2x + 20; x is any integer greater than or equal to, 0 and y is any integer greater than or equal to 20

Step-by-step explanation:

Answer:

D.

Hope that helps!

Step-by-step explanation:

Answer:

D.

Step-by-step explanation:

Hope this helps

x=11 should be the answer lmk if so

Answer:

x = 18

Step-by-step explanation:

m∠1 & m∠3 are vertical angles. By definition of vertical angles, their measurements will be the same.

It is given that:

m∠1 = 4x - 14

m∠3 = 58°

Set the two angles equal to each other:

4x - 14 = 58

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, add 14 to both sides of the equation:

4x - 14 (+14) = 58 (+14)

4x = 72

Next, divide 4 from both sides of the equation:

(4x)/4 = (72)/4

x = 72/4 = 18

18 is your answer for x.

~

Answer:

+40

Step-by-step explanation:

Answer:

Step-by-step explanation:

Arc length=∅/360×2πr (can't find the symbol of theta, use ∅ instead LOL)

[tex]\frac{\theta }{360}\cdot 2\pi \left(11\right)=16[/tex]

[tex]\frac{\theta }{360}=\frac{16}{22\pi }[/tex]

[tex]\theta \:=\frac{16}{22\pi \:}\cdot 360[/tex]

[tex]{\theta}=83.34[/tex]

Answer:

≈ 1.5 radians

Step-by-step explanation:

The arc length is calculated as

arc = circumference of circle × fraction of circle

Here arc = 16 , then

2πr × [tex]\frac{0}{2\pi }[/tex] = 16 ← cancel the 2π on numerator/denominator

11 ×θ = 16 ( divide both sides by 11 )

θ ≈ 1.5 radians ( to the nearest tenth )

Answer:

For a function f(x), a vertical stretch of scale factor K is written as:

g(x) = k*f(x)

And for a function f(x), a vertical translation of N units is written as:

g(x) = f(x) + N

If N is positive, the translation is up

if N is negative, the translation is down.

1) We have the function:

y = f(x) = 5^(x - 2)

A vertical stretch of factor 3 will be:

y = g(x) = 3*f(x) = 3*(5)^(x - 2)

2) We have the function:

y = f(x) = 7.2^x

A translation up of 8 units will be written as:

y = g(x) = f(x) +  8 =  7.2^x + 8

The answer is 6,8,10.

Not only it is in perfect ratio with 3,4,5 as stated above, it also proves right in the equation. I can assume that a=6,b=8,and c=10, so [look in image]

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

Explanation:

A diagram is optional, but I find it helps sometimes. The diagram is shown below.

Opposite the 10 degree angle is h. So we consider h the opposite side.

The hypotenuse is 12. The hypotenuse is always opposite the 90 degree angle.

Apply the sine ratio to solve for h

sin(angle) = opposite/hypotenuse

sin(10) = h/12

12*sin(10) = h

h = 12*sin(10)

h = 2.08377813200317 which is approximate

h = 2.1 miles is the plane's altitude which is also approximate

Side note: 2.1 miles is equal to 11,088 feet (multiply by 5280 to convert from miles to feet).

Answer:

Your answer should be $29.40

Step-by-step explanation:

If you divide 21 by 5 you get 4.2, so each book costs $4.20.

4.2 x 7 = 29.4

Therefore, your total cost for 7 books will be $29.40

I hope this helps!

Answer:

First I would suggest to use calculator soup.

Step-by-step explanation:

To find the volume of a rectangular prism, we multiply the length of the prism by the width of the prism by the height of the prism.

Answer:

i think 200

Step-by-step explanation:

Answer: (3,3)

Step-by-step explanation:

Answer:

what is the question?? nebebaiajbw

Answer:

yes agree

Step-by-step explanation:

because negative 40 is less than negative 17

Answer:

the car will be closest to 8000 in year 8. the car would be worth 7778.

Answer:

Year 5

Step-by-step explanation:

If the value decreases by 13% each year that is $3,081 each year (0.13x23,700=3,081)

Year 1: 23700-3081=20619

Year 2: 20619-3081=17538

Year 3: 17538-3081=14457

Year 4: 14457-3081=11376

Year 5: 11376-3081=8295

Year 6: 8295-3081=5214

So, the year would be year 5 and the value of the car would be $8,295

Answer:

33.33333

Step-by-step explanation:

You really don't know what they could've ordered, just divide by 3, to get an average of each.

Answer:

1) A and D

The radius is the distance from the center of a circle to any part of the edge. Both A and D have a radius of three, regardless of what direction they go.

2)  5"

In circle C we see that there is a line segment that is 5" that goes from the center to the edge, or the radius.

3) C

The different variables are representing different points on the circles. The circle that contains a line connecting C and L is circle C.

4) BN

Circle B contains a radius that is the distance from B to N, or BN.

5) EF

The diameter is the distance of a  straight line that was pass through the middle of a circle, or its width. The diameter is double the radius. In circle A we see that line EF passes through the center put goes all the way across the circle.

6)IJ

Line IJ isn't even linear, so it could not be the radius. Both AG and BH are straight lines that represent the radius.

7) 6"

The diameter is always twice the radius. In circle A the radius is 3, so the diameter is 6.

8) A and D

Just as we said in the first answer, A and D both have a radius that measures 3 inches.

I hope this helps!

Step-by-step explanation:

Answer:

A and D i think

Answer:

x = -56

Step-by-step explanation:

x4 on both sides to get rid of the fraction, then +20 on both sides to get rid of -20 on the left side, then you get x = -56