Mathematics College

Please help this is including substitution and system of equations.

Answers

Answer 1

Answer: I gotcha

Step-by-step explanation:

B, C, C, D, B

I just helped my brother with this

Related Questions

which equation shown below shows a linear relationship between x and y ?

Answers

Answer:

Its probably a because the ones with squared results in a u shape

5x-6=29. What does x equal

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Answer:

Solution given:

5x-6=29.

5x=29+6

x=35/5=7

x=7 is your answer

Answer:

x=7

Step-by-step explanation:

You deposited 800 dollars in an account that pays 6% interest compounded monthly. How much will your account be worth after 10 years?

A. 276130.00
B. 849.46
C. 1456
D. 1455.52

Answers

The answer is D. $14,55.52. I got this answer by using the compound interest formula which would be Y=800(1+.06/12)^12•10. Hope this helps!! :)

HELPPPP! Which expression is equivalent to 7Vx^2/5Vy^2

Answers

Pretty sure it’s the first answer

Answer:

Step-by-step explanation:

a 56-inch board is to be cut into three pieces so that the second piece is three times as long as the first piece and the third piece is four times as long as the first piece if x represents the length of the first piece find the length of all three pieces

Answers

Step-by-step explanation:

length of 1st piece = x inch

length of 2nd piece = 3x inch

length of 3rd piece = 4x inch

x + 3x + 4x = 56

8x = 56

x = 7

Thus,

length of 1st piece = 7 inch

length of 2nd piece = 3 × 7 = 21 inch

length of 3rd piece = 4 × 7 = 28 inch

Solve the following equation for x: 6(4x + 5) = 3(x + 8) + 3. Round to the nearest hundredth.

Answers

Answer:

x ≈ -0.14

Step-by-step explanation:

6(4x + 5) = 3(x + 8) + 3

24x + 30 = 3x + 24 + 3

24x + 30 = 3x + 27

21x + 30 = 27

21x = -3

x = [tex]\frac{-3}{21}[/tex]

x = [tex]-\frac{1}{7}[/tex]

x ≈ -0.14

-2x + 1 = -x + 8 solve for X?

Answers

Answer:

x = -7

Step-by-step explanation:

-2x + 1 = -x + 8

* isolate the variable using inverse operations *

step 1 add 2x to each side

-2x + 2x cancels out

-x +2x = x

now we have 1 = x + 8

step 2 subtract 8 from each side

8 - 8 cancels out

1 - 8 = -7

we're left with x = - 7

if ab ≠ 0, which is equivalent to

Answers

Answer:

-12a³b²/(6ab²)=-2a^(3-1)=-2a²

Since ab don't have any values yet, you must break it down now knowing ab doesn't equal 0.

Answer: -2a^2

Help pleaseeeeeeeeeeee

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Answer:

Step-by-step explanation:

3 visually has the greatest slope Distance / time = greatest speed...

Here are the speeds (as I read the graph, always double check my work)

1) is 10m / 4s 2.5 m/s

2) is 15m / 4s 3.75 m/s

3) is 30m / 2s 15 m/s

4) is 5m / 4s 1.25 m/s

Help! Can you solve this. I'll give brainliest

Answers

Answer:

Y = 10

I hope it's helps you

Answer:

y = 10

Step-by-step explanation:

So, we can use the external angle as the measurement of the distant angles. In other words,

4y + 7y + 6 = 116

11y + 6 = 116

11y = 110

y = 10

The reciprocal of 7 1/2 is

Answers

Answer:

2/15

Step-by-step explanation:

To find the reciprocal of a fraction switch the numerator and the denominator

7 1/2 = 15/2 = 2/15

Have a good day

Is this a polygon?

Yes or no

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Answer: No

Step-by-step explanation:

A polygon should have straight lines so the answer is no

Please please help me please please I really need help please please help me please please

Answers

Answer:

1d674hh

Step-by-step explanation:

drrx+mub

Which of the following is a perfect cube?
1
18
4
81

Answers

Answer: 1

Step-by-step explanation:

1 is both perfect square and cube.

Dans une classe, le professeur d’EPS choisit au hasard un élève qui sera l’arbitre du
match de football.
La probabilité que ce soit un garçon est de 0,7.
Calculer, en justifiant, la probabilité que ce soit une fille

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Answer:

Step-by-step explanation:

1-0,7 = 0,3

la probabilité que se soit une fille est de 0,3

Answer:

1-0,7 = 0,3

la probabilité que se soit une fille est de 0,3

Translation:

the probability that it is a girl is 0.3

ILL GIVE THE BRAINLIEST PLS HELP BASICALLY EVERYTHING IS IN THE PICTURE ANSWER THE QUESTION CORRECTLY IF NOT ILL REPORT YOU FASTER THAN THIS ASSIGNMENT NEEDS TO BE SUBMITTED!!!!

Answers

Answer:

B. Ferrari and Jaguar is the answer

A satellite in a 100-mile-high circular orbit around Earth has a velocity of approximately 17,500 miles per hour.If this velocity is multiplied by √2 the satellite will have the minimum velocity necessary to escape Earth's gravity and will follow a parabolic path with the center of Earth as the focus.

Required:
Find the distance between the surface of the Earth and the satellite when θ = 50°.

a. Distance between surface of Earth and satellite:4496 miles
b. Distance between surface of Earth and satellite:4322 miles
c. Distance between surface of Earth and satellite:1286 miles
d. Distance between surface of Earth and satellite:643 miles
e. Distance between surface of Earth and satellite:1492 miles

Answers

Answer:

64.3 miles ( D)

Step-by-step explanation:

Circular orbit height ( from the center of the earth ) = 100 mile

angle between satellite and earth = 50°

escape velocity = √2 * 17500 = 24748.73 miles /hour

distance between surface of earth and satellite

x = cos ∅

∴ Cos ∅ = x / 100

x = cos 50° * 100 ≈ 64.3 miles

Plz help this is due today i would have done it myself but i totally forgot about these so PLZ HELP AND NO LINKS AND NO GROSS PICTURES OR I REPORT.

Answers

Answer:

Step-by-step explanation:

if you were to flip A and B they would match

A house is located at the center of a circular lot, exactly 25 yards from the edge of the lot. How much fencing will the homeowner need to surround the entire lot?

A. 157
B. 200.96
C. 185
D. 78.5

Answers

I think its it’s D. 78.5.

The number of yards fencing the homeowner need to surround the entire lot is 78.5 yards. Therefore, the option D is the correct answer.

What is the circumference?

The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its centre. A meridian is any great circle passing through a point designated a pole.

Given that, a house is located at the center of a circular lot, exactly 25 yards from the edge of the lot.

Here, d = 25 yards

Radius = 25/2 = 12.5 yards

We know that, the circumference of a circle = 2πr

= 2×3.14×12.5

= 78.5 yards

Therefore, the option D is the correct answer.

To learn more about the circumference visit:

https://brainly.com/question/4268218.

#SPJ3

find the surface area 3 No files

Answers

Answer:

872 sq inches

Step-by-step explanation:

Total surface area = 2 × (17 × 12) + 2 × (8 × 17) + 2 × (12 × 8)

= 408 + 272 + 192 = 872

Ann is using a recipe that serves 20 people. The recipe requires half a
of a cup of sugar. How many cups of sugar does Ann need to serve 70 people with this recipe?

Answers

Answer is 1 and 1/2 cups of sugar is needed

Answer:

17.5 cups of sugar

Step-by-step explanation:

20 people = 1/2 cup of sugar

10 people = 1/4 cup of sugar

70 people = 17 1/2 cup of sugar

Hope this helps!

Which statement about the ordered pairs (–2, 9), (0, 9) and (3, 9) is not true?

Answers

Answer:

The slope of these coordinates is 0.

It is a horizontal line.

Step-by-step explanation:

Does anybody know the answer to this question

Answers

Answer:

Step-by-step explanation:

Camila invests money in an account paying a simple interest of 3.4% per year. If she invests $50 and no money will be added or removed from the investment, how much will she have in one year, in dollars and cents?

Answers

After investing $50 and waiting 1 year she would have gained $1.70.

Answer:

51.70

Step-by-step explanation:

2 ways to calculate

50 x 1.034=51.70

50 x .034=1.70 interest

1.70 interest

Plus 50.00 principal

equals 51.70

Change the decimal to a percent. 1.3=

Answers

Answer:

Im pretty sure its 130%

Step-by-step explanation:

.013% I think you move the decimal to the left

please help! What is the exact volume of the cylinder?

Enter your answer, in terms of π, in the box.

Answers

[tex]\pi \: {r}^{2} h[/tex]

[tex] \frac{22}{7} \times \: {5}^{2} \times 15[/tex]

[tex]1178.09725[/tex]

2+2 i need help please help fast fast help

Answers

Answer:

uhhhhhh i think its..... 4

Step-by-step explanation:

Answer:

4, you are welcome.

A
Cylindrical container with Circular base
is hold 64 cubic centimetres. Find the
dimension so that the amount(surface area)
of metal required is a minimum when
( a ) the container is an open cup and ( b ) a
Closed can

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Answer:

annhbhhnnnnnnbhhhbbbbbbbbbbbbbbbbbbbbbbbnbnnnnnnnnnnnnnnnnnnnnnn 24cm2

HELP PLSSS!!!!!!!!!!!!!!!

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Answer:

6. (27÷3) × v = 45

9 × v = 45

v = 45/9 = 5

F. 5

5. (2×19) + 3 = j

38 + 3 = j

j = 41

C. 41

4. 7 + t = 4 + 6 + 3

t = 13 - 7

t = 6

J. 7+t = 4+6+3

t = 6 tickets

Answer:

First question=5 : Second question= 41 : Third question= J

Step-by-step explanation:

27 divided by 3 is 9, so planting one violet takes 9 minutes, if they spend 45 minutes planting them you divide 45 by 9 and get 5.

Ada ate 19, rob ate double Adas amount, so 19x2 to get Robs total of 38, then Jane ate 3 more than rob, so 38+3=41

6 is the 13 tickets she needs -7 that she has already.

Please help

A vector is drawn on a grid

Answers

Answer:

.....

...

Step-by-step explanation:

I cant see the grid

Other Questions

pls help bro plsss pls pls Braelyn is writing an equation to represent the perimeter of a rectangle with the width equal to half the length. She knows that the perimeter is equal to 18 units and needs to find the length and width of the rectangle. Which equations represent this relationship? Select the four correct answers.x + one-half x = 182 x + x = 182 (x) + 2 (2 x) = 18x + one-half x + x + one-half x = 182 (x + one-half x) = 182 x + one-half x = 18 Review Questions1. Based on the unit, we learned that when you begin to imagine how your characters will look andhow they will act, there are two important approaches to remember. Please name and brieflydefine these approaches.2. While writers track their plots in different ways, all writers tend to follow the same plot structureand test their characters' actions against the same framework. Briefly explain the framework thatwriters use for plot structure.3. There are a variety of different character types that you can include in your story. Please choosefour character types from the section and briefly describe each one.4. In this section, we learned that the theme is the vehicle of a story and can be stated in one oftwo ways. Please define the two ways that the theme can be expressed and give an example ofa book that clearly shows its theme through these two ways.5. Describe and briefly define the five strategies that can be used to weave theme throughout thestory The length of a rectangle is 7 cm longer than its width.The area of the rectangle is 120 cm.What is the width of the rectangle?Enter your answer in the box. Why do you think Martinas mother had her mix the drugs with dirt, kitty litter, or used coffee grounds? quick im almost done One out of seven people on Earth depends on fishas a protein source. What could happen if warming waters have asimilar effect on other stocks of fish? did World War I happen? The winner of a raffle will receive a 21-foot outboard boat. If 5000 raffle tickets were sold and you purchased 40 tickets, what are the odds against your winning the boat? The probability that you randomly select a red marble from a group of 40 marbles is 7/20 . How many are red marbles? at what point did the climate began to fluctuate more severely ? (2 points ) you dont have to show work They said, "We have seen many ups and down a of life" change into indirect speech. 10)What was a positive effect of the green revolution?A)High yields of grainsB)Profit for small farmsoExcess use of fertilizerD)Excess use of pesticides What is the value of f(3)? f(3) = What are the domain and range of f(x)? (Negative infinity, infinity) ; (Negative infinity, 4); (Negative infinity, 4 Right-bracket (Negative infinity, 4 Right-bracket On a coordinate plane, a piecewise function is comprised of 2 lines and a curve. A line starts at closed circle (negative 3, 4) and has a negative slope toward (negative 5, 1). A line starts at open circle (negative 3, 3) and goes to closed circle (0, 0). A curve starts at closed circle (0, 0) and curves up to open circle (4, 2). f (x) = StartLayout Enlarged left-brace First row x + 7, x less-than-or-equal-to negative 3 Second row negative x, negative 3 less-than x less-than-or-equal-to 0 third row StartRoot x EndRoot, 0 less-than x less-than 4 EndLayout An aquarium can hold 4.5 liters of water. How many milliliters of water can the aquarium hold? A 450 milliliters B 4,500 milliliters C 45 milliliters D 45,000 milliliters Consider the line - 5x 3y = 7.(a) What is the slope of a line parallel to this line?(b) What is the slope of a line perpendicular to this line? 1 pound is equal to 16 ounces. How many ounces are in 3 pounds, 7 ounces? What occurs when particles of warmer matter collide with particles of cooler matter which of the following is an example of the united states contributing to solving the worlds problems?A. American citizens debate the benefits and drawbacks of immigration.B. American consumers take advantage of low prices of imported goods.C. The united states provides money to help Haiti after a catastrophic earthquake.D. The united states signs a trade agreement with Mexico and Canada.