Mathematics College

What’s the numerator for the following rational expression please I need help quick taking test currently

Answers

Answer 1

Answer:

Well, the most reasonable explanation would be j+8 or 8+j

Related Questions

I NEED HELP WITH THIS MATH PROBLEM!!!

Answers

Answer:

72 degrees

Step-by-step explanation:

4x+6x=180

10x=180 combine like terms

10x/10=180/10

x=18

4(18) = 17

What if it like this

Answers

Answer:

The answer is 4:1

Step-by-step explanation:

16:3 goes to 4:1

pls help what is 1+2

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Your answer would be 3

One plus two is equal to three 1. +. 2. =3

12.
Question 19 (5 points)
2 - (-8) + (-3) =
15
OA) 1
18
B) 14
12
O
D) 7

Answers

Answer:

The answer is d because 10-3 is 7

Answer:

D)7

Step-by-step explanation:

2 - (-8) + (-3) =

10-3 =7

4.5.36
A smoke jumper jumps from a plane that is 1500 ft above the ground. The function h= - 16t^2+ 1500 gives the jumper's height h in feet during the free fall att seconds
a. How long is the jumper free fall if the parachute opens at 1000 ft?
b. How long is the jumper in free fall if the parachute opens at 940 ft?
c. What is a reasonable domain and range for the function h?

Answers

We have a jumper that jumps from 1500ft above the ground, such that its height as a function of time is given by:

h(t) = -16*t^2 + 1500

The solutions are:

A) 5.59 seconds

B) 5.91 seconds

C) D = (0s, 9.68s)

R = [0ft, 1500ft]

Notice that when t = 0, h = 1500, then at the initial time (t = 0) the height is 1500 (in ft), which means that the zero of the height is the ground.

a) How long is the jumper free fall if the parachute opens at 1000 ft?

Here we need to solve:

h = 1000 = -16*t^2 + 1500

Now we just need to solve this for t:

16*t^2 = 1500 - 1000 = 500

t^2 = 500/16 = 31.25

t = √31.25 = 5.59

So it takes 5.59 seconds to open the parachute.

B) similar to before, this time we need to solve:

h = 940 = -16*t^2 + 1500

16*t^2 =1500 - 940 = 560

t^2 = 560/16 = 35

t = √35 = 5.91

So it takes 5.91 seconds to open the parachute.

C) The domain is the set of inputs that we can use in the function.

The minimum of the domain is t = 0, when the jumper jumps.

To find the maximum of the domain we need to find the maximum time at which he could open the parachute, that is when h = 0ft, just in the ground.

Then we solve:

h = 0 = -16*t^2 + 1500

16*t^2 = 1500

t = √(1500/16) = 9.68

Then a reasonable domain is (0s, 9.68s)

And the range is the set of possible outputs, which will be all the possible heights of the jumper. We know that all of these are between 0ft and 1500ft, thus the range is [0ft, 1500ft]

If you want to learn more, you can read:

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Please help with the problem in the picture ^ I’ll give brainliest if you give me a small explanation! :)

Answers

Answer:

i got negative 108

Step-by-step explanation:

i got this because just put it in a porportion like x/y = x/?

then plug in the numbers it gives you. so it should look like this 5/-45 = 12/?

then multiply 12 and -45 and then divide by 5. you should get -108

pls mark branliest

it didn’t pop up brainliest because 2 people have to answer the question, i answered so you can mark them brainliest !

The sum of the angles of any triangles. Write each answer on the line provided beside the corresponding letter. Notice that angle C is in an equilateral triangle and angle D is in an isosceles triangle.

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Step-by-step explanation:

A=60B= 60 c= 60 D=42E35F= 35G= 55H= 4 5 I= 45J= 1 5 k= 15 L= 75 M= 120 N= 21O= 69P= 21Q= 55R= 55s= 42T= 42u= 69

Graph the line with slope −1 and y-intercept 3.

Answers

Answer:

See Attachment.

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define variables

Slope m = -1

y-intercept b = 3

Step 2: Write linear equation

Substitute into general form.

Slope-Intercept Form: y = -x + 3

Step 3: Graph

2)
Last year Jose sold a painting for $2000. If he made 25% profit on the sale, how much had
he paid for the painting?

Answers

Answer:

1600 is the answer

Step-by-step explanation:

x + 0.25x= 1.25x =2000÷1.25 =1600

A certain fraction is greater than 2. The denominator is 8. What must be true about the numerator?

Answers

Answer:

The numerator must be greater than 16

Step-by-step explanation:

We are told that a certain fraction is greater than 2. Thus, if the numerator and denominator are x and y respectively, then we have;

x/y > 2

We are further told that the denominator is 8.

Thus;

x/8 > 2

Multiply both sides by 8 to give;

x > 16

Thus,the numerator must be greater than 16.

what is 3(x – 6) = -12x - 9

Answers

Answer:

x = 3/5

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3(x−6)=−12x−9

(3)(x)+(3)(−6)=−12x+−9(Distribute)

3x+−18=−12x+−9

3x−18=−12x−9

Step 2: Add 12x to both sides.

3x−18+12x=−12x−9+12x

15x−18=−9

Step 3: Add 18 to both sides.

15x−18+18=−9+18

15x=9

Step 4: Divide both sides by 15

15x/15 = 9/15

so x = 3/5

plz mark brainly

yoo someone help me with this im at school right now and its due in like 10 mins !

Answers

This should be the right answer 3a+2(3)=24 a=6

the one mile race is equal to how many feet

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Your answer to this question

✿ 1 Mile = 5280 feet ✿

What is a number that when you multiply it by 4 and subtract 7 from the product, you get 25?

Answers

Answer:

8 times 4= 32-7=25

Step-by-step explanation:

The unknown number from the equation is 8.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Given that, a number that when you multiply it by 4 and subtract 7 from the product, you get 25.

Let the unknown number be x.

Now, 4x-7=25

4x=32

x=8

Therefore, the unknown number is 8.

To learn more about an equation visit:

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9. Given p = 2i + 2j + k and q = 4i + k. Find
(a) p • q
please help ASAP for 25 points and brainliest :)

Answers

Step-by-step explanation:

because i,j,k are the unit vectors of x y and z axis and the vector having same unit vector can only be multiply or divide

dose the graph show a function? explain how you know

Answers

Answer:

Step-by-step explanation:

the graph fails the vertical line test

Find the value of x.
3x - 9+X + 5

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Answer:

4x-4 should be the answer

What is an algebraic expression to represent the perimeter of a rectangle with a width of x+5 and a length of 3x+10?

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We know that the area of a rectangle is equal to the width multiplied by the length. So in this case the algebraic expression is (x+5)*(3x+10). You get 3x^2 +10x +15x +50= 3x^2 +25x +50.

is x= 3 a solution to the equation 2(2x +1) + x = 8x +2-3x

Answers

I think u got right answer...

Pete wants to buy a new bike that costs $120 before any discount. Which offer should he choose to pay the least amount for the bike? NEED HELP PLEASE

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Answer: What are the different offers...?

what is the value of f(x)=3x-4 if x = -4?

Answers

Answer:

-16

Step-by-step explanation:

when x = -4

f(-4) = 3(-4) - 4 = -16

Answer:

f(-4)=3(-4)-4

f(×)=48

Help please ... thanks

Answers

put the equation in desmos and you will get your answer :)

Start at point (0,-6) or start at the point that’s -6 on the y line. Then count up 9 the 1 to the right a place a point there. Finally connected ur two lines and that’s the line for your equation

Answer For Brainliest

Answers

Answer:

the answer is D

Step-by-step explanation:

evaluate the expression for x = 3 y= 1/3 and z= 5. 12 x - 3y over 4 x - Z

Answers

Answer:

35.786

12(3) - 3(1/2)/4(3) - 5

This is then further simplified to:

36 - 1.5/7

And when you divide 1.5 by 7, the number (rounded) is .214.

Thus, subtract, and gain the final answer of 35.786.

Hope this helps!

Step-by-step explanation:

Can you please mark me brainliest

Hey there!

12x - 3y / 4x - z

= 12(3) - 3(1/3) / 4(3) - 5

= 36 - 1 / 12 - 5

= 35 / 7

= 5

Therefore, your answer is: 5

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Can anyone help me please I don’t understand this one can you please help me I appreciate it but don’t give me the wrong answer because I need my grade to go up I’m so sorry for being picky

Answers

Answer: (-25)/(2)

Steps: x | 0 | 2 | 4 | 6 | 8 |

"x" has a constant rate change of +2

y | 100 | 75 | 50 | 25 | 0 |

"y" has a constant rate change of -25

therefore, y/x = -25/2

The ratio of boys to girls in Ms. Graham’s class is 3 to 5. There are 20 girls in the class.

What is the total number of students in Ms. Graham's class?

Answers

Answer:32

Step for step explanation:

There are 12 boys,because 20 divided by 5 is 4 and 4 times 3 is 12

which The following is a residual plot from a regression of a variable with the independent variable x.

Based on the plot, is it reasonable to conclude that a linear model is appropriate?
1.)Yes, because the plot shows no apparent pattern.
2.)Yes, because the points in the plot display less variation as x increases.
3.)Yes, because the sum of the residuals is close to zero.
4.)No, because the plot shows no apparent pattern.
5.)No, because the points in the plot display more variation as x increases.

Answers

Answer:

Yes, because the plot shows no apparent pattern.

Step-by-step explanation:

Yes, because the plot is a residual plot from a regression of a variable with the independent variable x.

What is regression?Regression is a statistical method that connects a dependent variable to one or more independent (explanatory) variables. A regression model can show whether changes in one or more explanatory variables cause changes in the dependent variable.A regression analysis can be used to predict how the independent variable will affect the dependent variable. As an example, we can say that a linear regression model can accurately predict age and height. Because height grows with age, age and height have a linear relationship.Regression analyses are usually carried out for one of two reasons: Forecasting the value of the dependent variable is possible for those who have access to some information on the explanatory variables.

Therefore, the correct option is 1.)Yes, because the plot shows no apparent pattern.

To learn more about regression refer to:

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Julie has a part time job after school she gets paid at a constant rate of dollars per hour.Julie works 12$ per month . Use this rate to find many hours it takes for Julie to earn $228

Answers

julie would earn $12/h×16h=$192

Charlie bought a pair of shorts at the store when they were having a 45% off sale. If the regular price was 24$ how much did charlie pay?

Answers

Answer:

$10.80

Step-by-step explanation:

45% of $24=10.8

use place value and money to make it $10.80

TEN DOLLARS AND EIGHTY CENTS

I’ll give the brainlest answer! Is this relation a function? Please help

Answers

Answer:

show me the choices

Step-by-step explanation:

so i qnswer ir

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