Mathematics College

Suppose you add two linear equations that form a system, and you get the result y = −2. How many solutions does the system have?

Answers

Answer 1

Answer:

This system will have 1 solution

Step-by-step explanation:

A linear system that has exactly one solution is called a consistent independent system. Consistent means that the lines intersect and independent means that the lines are distinct. Linear systems composed of lines that have the same slope and the y-intercept are said to be consistent dependent systems.

Related Questions

What is the value of z? Refer to the attached image. Show work pls :)

Answers

Answer: I believe it’s 35
Explanation: so a triangle will always equal 180 add 104 19 and 22 and then subtract that by 180 and you get 35 hope this helps if not reply to my comment and I’ll help
Answer: z=35°

Explanation: First find X. All angles of a triangle adds up to 180°. To find x, add up all sides and set it equal to 180. 22+104+x=180. Solve for x. x = 54

A straight Line is 180°. Use x to find y. x+y = 180. Substitute x. 54+y=180 y = 126

To find z, find y + 19 +z = 180. Substitute y. 126+19+z=180. Solve for z. z = 35

A set of 10 cards consists of five red cards and five black cards. The cards are shuffled thoroughly, and I choose one at random, observe its color, and replace it in the set. The cards are thoroughly reshuffled, and I again choose a card at random, observe its color, and replace it in the set. This is done a total of four times. Let X be the number of red cards observed in these four trials. The mean of X is:

Answers

Answer:

The mean of X is 2

Step-by-step explanation:

Given the data in the question;

set of 10 cards consist of 5 red card and 5 blacks

cards are chosen, replaced and shuffled four times;

number of independent trials n = 4

now, since its is replaced, the probability of getting a red card in each trial will be;

p = 5/10 = 0.5

let X rep the number of red cards observed in the four trials.

the random variable follows binomial distribution where

n = 4 and p = 0.5

so

E(X) = ∑xP( X = x )

E(X) = np

we substitute

E(X) = 4 × 0.5

E(X) = 2

Therefore, The mean of X is 2

What is the quotient of 15÷3?

Answers

5

Hope this helps you :D

How many solutions are there in the equation 2x - 5 = 2x - 5?

Answers

Answer:

the equation 2(x - 5) = 2x + 3 has no solutionStep-by-step explanation:

Mrs. DeMarco wants to estimate the height of her garage
oor. Select the best benchmark for her to use.
the width of a paperclip
the length of a baseball bat
the height of a license plate
how far she can walk in 20 minutes

Answers

Answer:

length of baseball bat.

Step-by-step explanation:

she can measure the bat and times by how many times she could fit the bat there u know

Help me plsssssssssssssss




Hi

Answers

Answer:

1,900 i think is the answer pls dont sue me lol

Answer:

1900

Step-by-step explanation:

To the nearest hundred, so we have to look at the tens place. The tens place is 9, ninety, it's greater than 5, so we round up. therefore, 1894 rounded to the nearest hundred is 1900.

Explain:In (4a)^3


•c

Answers

Answer:

Step-by-step explanation:

(4a)^3

4^3 a^3

=12a

tion
4. Solve the equation below.
7.7 + d = 10.5
A 18.2
C -18.2
B -2.8
D 2.8
US

Answers

Answer: D. 2.8


Explanation:

7.7 + d = 10.5

Plug 2.8 as d in the equation

7.7 + 2.8 = 10.5

This is a true statement so D is the correct answer!


lol helpppppppppp ‍♀️

Answers

Answer:

The answer is 52.6038

Step-by-step explanation:

Answer:

Step-by-step explanation:

52.6038

Find equation to (-3,0),m=5

Answers

Answer:

Step-by-step explanation:

y=5x+15

Solve for all values of x:
(x-3)2 = 16
• A X=-7,4
B. X= 4,1
I C. X= 7,11
D. X= 7,-1

Answers

Answer:

X= 6/D

Step-by-step explanation:

i did the math

PLS HELP

A triangle is shown.

Part A: What is the value of x, in degrees?
13.8
16
20
24
Part B: What is the measure of 2Ain degrees?
22
30
38
48

Answers

Answer:

A: x=16

B: ∠A=22

Step-by-step explanation:

A

The angles in a triangle always add up to 180. Therefore:

∠A+∠B+∠C=180

(2x-10)+(3x)+(4x+46)=180

2x+3x+4x+46-10=180

9x=180-36

x=144/9

x=16

B

∠A=2x-10

∠A=2(16)-10

∠A=32-10

∠A=22

Cell phone Plan A costs$70 per month and comes with a free$500 phone. Cell phone Plan Bcosts$50 per month but does not come with a phone. If you buy the$500 phone and choose Plan B, how many months is ituntil your cost is the same as Plan A's?

Answers

1,120 this is the answer

Answer:

7.8 months but you can round it to 8 months

Step-by-step explanation:

You want to buy a pet rabbit that costs ​$49. You already have ​$18 and you plan to save ​$9 per week. If w represents the number of weeks until you have enough money to buy the rabbit​, what equation could you use to find the value of​ w? Use pencil and paper. Explain how you could set up an equation to find the amount of money you should save each week if you want to buy the rabbit in six weeks.

Answers

18 + 9x = 49

with the use of an equation you can easily find out if 6 weeks of saving up is enough to get the rabbit.

18 + 9(6) [tex]\neq[/tex] 49

9 x 6 = 54

54 + 18 = 72

you could have enough money in 4 weeks

3. Which of the following values is closest
to the diameter of a circle with an area of
314 square inches?
a. 20 inches
b. 10 inches
c. 100 inches
d. 31.4 inches

Answers

The closest to the diameter is 20 inches!

I need help in this question. I am not understanding what it is telling me so HELP

Answers

Answer: You solve it its easy subtraction :)

Step-by-step explanation:

$14,000 - $5,358 - $2,834 - $4,132 = answer

Graph f(x) = 2 x + 3 + 2.

Answers

Answer:

HOPE IT'S HELPS YOU....

Trevor has an investment worth $6,774.50. He made his only deposit in it 22 years ago. Given that the investment yields 2.7% simple interest annually, how big was the initial deposit?

Answers

Answer:

4,250.00

Step-by-step explanation:

Brainliest?

Answer:

$4,250.00 Answer choice C

Step-by-step explanation:

Just took the test!

PLEASE HELP ASAP PLZZ I WILL GIVE BRAINLIEST In order to increase the circumference of a circle from 12pi cm to 18pi cm, by how much must the diameter increase?​

Answers

Answer:

This is because the diameter of the smaller circle is 12pi/pi which is 12, and the diameter of the bigger one is 18pi/pi which is 18. 12 + 6 = 18, so the diameter increases by 6.

Step-by-step explanation:

brinliest pls

Answer:

6

Step-by-step explanation:

A train arrives at a station and waits 3.5 minutes before departing. Another train arrives at the station 16 minutes later, repeating the cycle. Identify the probability that a train will not be at the station when you arrive.

Answers

Step-by-step explanation:

so we can safely say that one train will be there for 3.5 minutes and it will be gone for 16 minutes before another train comes and repeats the cycle.

we want how many minutes that the train will not be there over the total time that is possible so that would be

16/(16+3.5)

16/19.5

32/39

Hope that helps :)

The probability of the train not being at the station on arrival would be:

0.82

Find the probability

Given that,

The duration for which the train makes = 3.5 minutes

The time at which the second train arrives = 16 minutes later

We know that this cycle is repeated.

The duration for which the train is not there would be:

[tex]= 16/(16+3.5)[/tex]

[tex]= 16/19.5[/tex]

[tex]= 32/39[/tex]

[tex]= 0.82[/tex]

Thus, 0.82 is the probability.

Learn more about "Probability" here:

brainly.com/question/8069952

a ski resort charges $45 for an All day lived pass and $40 per day for renting boots and a snowboard. At a store, you can buy boots and a snowboard for $360. How many times must you go snowboarding at the ski resort for the cost of buying your own boots and snowboard to be less than renting them?

Answers

U can go 14 times, your welcome

PLEASE HELP QUICK I NEED IT TO PASS. PLEASE SHOW STEPS, AND DON'T SPAM LINK PLEASE HELP. I NEED SOME HELP

Answers

Answer:

c=a2+b2=62+42≈7.2111

don't know if this is what

you are looking for but...

how many ping pong balls do you need if you want to arrange them in the shape of an equilateral triangle with 23 rows

Answers

Answer:
You would need a total of 276 ping pong balls

Step by step explanation:
To determine the number of ping pong balls needed to form an equilateral triangle with 23 rows, we can calculate the total number of balls in the triangle. In an equilateral triangle, each row has one more ball than the previous row. The formula for the sum of the first n natural numbers is given by:

Sum = (n * (n + 1)) / 2

In this case, we want to find the sum of the first 23 natural numbers. Substituting n = 23 into the formula, we get:

Sum = (23 * (23 + 1)) / 2 = 276

Therefore, you would need 276 ping pong balls to arrange them in the shape of an equilateral triangle with 23 rows.

Factor the expression

10x + 25

A. 2(5x + 10)
B. 5(2x + 5)
C. 10(x + 5)
D. 5(2x + 25)

Answers

Step-by-step explanation:

The correct answer is ''B. 5(2x + 5)''

Graph logarithmic function g(x)=log3x

Answers

Answer:

Step-by-step explanation:

The logarithmic equation provided can be seen graphed in the image attached below. We can see from the graph that as the line approaches the +3 on the y-axis it moves infinitely towards positive infinity on the x-axis. Never truly touching the y-value of 3 but instead increasing less and less every time towards it.

I need help understanding this, I don't mind if you just give me the answer but just tell me, please.

Answers

Answer:

73.50

Step-by-step explanation:

Answer:

67.5

Step-by-step explanation:

his earnings increase in a linear way so we can express it as linear equation;

y = ax+ b ,

a is the slope in this case it is 7.5$ for every hour

b is the initial value, in this case 0

y = 7.5x

we will write 9 insted of x to find the amount of money when working for 9 hours;

y = 7.5 x 9 = 67.5

32 ÷ 24 plese help me

Answers

Answer: 1.333

Step-by-step explanation:

Answer:

1.33

Step-by-step explanation:

nothing much to explain

I NEED HELP ASAP PLEASE

Answers

It would be c.

2(4x6)= 48
2(6x10)= 120
2(4x10)= 80

48+120+80= 248!:)
it’s a just multiply

What is the answer for this is it a B C or D

Answers

Answer:

AB and CD are parallel lines.

hence answer is D

Good day mate

The answer is D :) because if you look at it the parallel lines are AB and CD

PLEASE!!

What is the COMBINED surface area of the prisms shown below?

Answers

81 I think can u give me the base edge and height plz
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