True or False
Stock Prices are easy to predict?

Answer:

Step-by-step explanation:

(f + g)(2) = 2(2) + 3 + (2)^2 - 1 = 10

(f - g)(4) = 2(4) + 3 - (4)^2 + 1 = -4

(f / g)(2) = (2(2) + 3) / ((2)^2 -1) = 7/3

(f * g)(1) = (2+3)(1-1) = 0

Answer:

$7.2 A.t a wholesale

Step-by-step explanation:

80%of $36

The mathematical order is :

80÷100×36

80÷100×36=$28.8

When we have found the 80% that is added

We subtract it from the retail price.

$36-$28=$7.2

At the end we are left with our wholesale prices.

Answer:

58° = measure of arc AC

Step-by-step explanation:

The measure of an angle formed by 2 chords is equal to 1/2 the sum of the measures of the intercepted arcs.

65 = (measure of arc AC + measure of arc BD)/2

     =  (measure of arc AC + 72)/2

130 = measure of arc AC + 72

58° = measure of arc AC

Answer:

it should be 90

Step-by-step explanation:

I hope this helps!

Answer:

21

Step-by-step explanation:

I have done this question before.

Answer:

x= -1, y=1

Step-by-step explanation:

First label the 2 equations.

7x +6y= -1 -----(1)

-x +2y= 3 -----(2)

Then choose which term you would like to eliminate. To eliminate the y term, multiply equation (2) by 3 such that the coefficient of y is 6.

(2) ×3:

-3x +6y= 9 -----(3)

Since the coefficient of y is positive 6 in both equations, subtract one equation from the other.

(3) -(1):

-3x +6y -(7x +6y)= 9 -(-1)

Expand:

-3x +6y -7x -6y= 9 +1

-10x= 10

x= 10 ÷(-10)

x= -1

Substitute x= -1 into (2):

-(-1) +2y= 3

1 +2y= 3

2y= 3 -1

2y= 2

y= 2 ÷2

y= 1

------------------------------------------------------------

2nd method: eliminating the x term

(2) ×7:

-7x +14y= 21 -----(3)

Since the coefficient of y in equation (1) is a positive 7, while that in equation (3) is a negative 7, add the 2 equations together to eliminate the x term.

(1) +(3):

7x +6y -7x +14y= -1 +21

20y= 20

y= 20 ÷20

y= 1

Substitute y= 1 into (2):

-x +2(1)= 3

-x +2= 3

-x= 3 -2

-x= 1

x= -1

Step-by-step explanation:

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Answer:

8 g/cm cube

Step-by-step explanation:

[tex]Density= \frac{mass}{volume}[/tex]

Density = [tex]\frac{40}{5}[/tex]

Density = 8 g / cm cube

Hope this helps :)

Answer:

30

Step-by-step explanation:

1 * 6 = 6

5 * 6 = 30

6:30

When you reduce it will be back to 1:5

answer:

22.5

step-by-step explanation:

3 X 3 = 9

6 X 3 = 18

7.5 X 3 = 22.5

Answer:

$32.09

Step-by-step explanation:

Um....yeah I just used an online calculator lol

Answer:1444.4

Step-by-step explanation:

part 1:To start do 10 times 10 then multiply that by 3.14 then multiply that again by 2.

Part 2:then multiply the radius by the height and then multiply that number by 3.14 then multiply it by 2.

Part 3: then add both together

Answer:

1,444.4

Explanation:

S=2πr2+ 2πrh

S=628+816.4

S=1,444.4

*☆Hope this helped!☆*

Answer:

21 inches

Step-by-step explanation:

Answer:

Slope m = 3.95

Step-by-step explanation:

Mathematically :

The equation of a line is written as y = mx + b

where

m is the slope

b is the y- intercept.

From the above question, we are told:

A farmer charges for his coffee beans using the equation C = 3.95p,

where C is the cost of the coffee beans and p is the number of pounds of coffee beans.

Comparing both equations:

y = mx + b

C = 3.95p

C = y

mx = 3.95p

b = 0

Therefore, the slope is 3.95

Answer:

Number one is Linear, Number two is Exponential, and Number three is quadratic

Step-by-step explanation:

Answer:

Part A

The vertex of the graph lies at (40,18). This is the maximum value on the graph. This means the balloon reached a maximum altitude of 1,800 meters about 40 minutes after its launch.

Part B

One of the x-intercepts of the function lies somewhere between x = 82 and x = 83. This is this point where the balloon is at zero altitude, or sea level. So, the balloon stays in the air for a little over 82 minutes. There is another x-intercept to the left of the origin. But a negative time value doesn’t make sense. So, we won’t considerate it for this scenario.

Part C

The -y-intercept of the function lies at (0,2). This is the starting point of the balloon’s journey. The point the balloon launched from was 200 meters above sea level.

Part D

We can’t interpret negative time values in this situation. So, the domain of the function is restricted to positive values of x. A negative y-value indicates an altitude below sea level. While some locations have negative altitudes, we can consider only positive values for this scenario. So, we should only consider positive values of y. So the domain of the function is restricted to only those values of x that produce positive values of y. Since we can’t see the x-intercept clearly from the graph, we’ll consider the domain of the function to be [0, 82].

Part E

Average rate of change on [0, 20] = f(20)-f(0) / 20-0

= 14-2 / 20

= 12 / 20

=0.6

Average rate of change on [60, 80] = f(80)-f(60) / 80-60

= 2-14 / 20

= -12 / 20

= -0.6

In this case, the rate of change represents the change in the balloon’s altitude within a time interval. The average rate of change on [0, 20] is positive. This indicates that the balloon is ascending, or climbing, during the first 20 minutes of its journey.

The average rate of change on [60, 80] is negative. This indicates that the balloon is descending between 60 and 80 minutes. Although negative, the rate of change in the second interval has the same absolute value as the rate of change for the first interval. So, during the last 20 minutes the balloon is descending at the same rate it was ascending during the first 20 minutes.

Answer:

32 pieces for each person but there will be 2 pieces left over

Step-by-step explanation:

Answer:

Each person will get 32 pieces. That's to be even.

Step-by-step explanation:. :D

Answer:

Step-by-step explanation

there is a square and it has 4 sides and if each are 300 you have to multiply  but remember to put the 2 zeros cause 300 has 2 zeros

Answer:

Solution given:

perpendicular distance =height [p]=40m

base or horizontal distance [b]=198m

Hypotenuse or zip line [h]=?

Now

By using Pythagoras law

h²=p²+b²

h²=40²+198²

h=√40804

h=202m

So the Zip line is 202m long.

Answer:

23m

Step-by-step explanation:

Answer:

23 Ft

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]5 {a}^{3} + 3a + 7 {a}^{3} - 2a - 4 {a}^{2} \\ \\ (5 {a}^{3} + 7 {a}^{3} ) + ( - 4 {a}^{2} ) + (3a - 2a \: ) \\ \\ 12 {a}^{3} - 4 {a}^{2} + a[/tex]

I hope that is useful for you :)

Answer: B

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

$16.70

Step-by-step explanation:

9.5 miles / .25 = 38

The first mile is 1.25 so we do this

37 * .35 = 12.95

12.95 + 1.25 = 14.2

14.2 + 1.25 + 1.25(two additional passengers) = 16.70

Answer:

c = 24.34

Step-by-step explanation:

Here, we can use the cosine rule

Generally, we have this as:

a^2 = b^2 + c^2 - 2bcCos A

12^2 = 14^2 + c^2 - 2(14)Cos 19

144 = 196 + c^2 - 26.5c

c^2 - 26.5c + 196-144 = 0

c^2 - 26.5c + 52 = 0

We can use the quadratic formula here

and that is;

{-(-26.5) ± √(-26.5)^2 -4(1)(52)}/2

(26.5 + 22.23)/2 or (26.5 - 22.23)/2

24.37 or 2.135

By approximation c = 24.34 will be correct

Answer:

Solution given:

5+x/2=4

x/2=4-5

x=-1×2

x=-2

Answer:

C, 21 students

Step-by-step explanation:

if you count out each dot plotted it equal 21 people

Answer:

25%

Step-by-step explanation:

add up the total amount of ppl which was 300 people. 75300 people were females with blue cars. Simplfy and you'll get 1/4 or 25%.