Mathematics High School

I need help with this question pls help

Answers

Answer 1

Answer:

y = - 4

Step-by-step explanation:

x = - 2

3x - 2y = 2

substitute x = - 2 into 3x - 2y = 2

3(- 2) - 2y = 2 ← step 1

- 6 - 2y = 2 ( add 6 to both sides ) ← step 2

- 2y = 8 ( divide both sides by - 2 )

y = - 4

Related Questions

PLS I NEED HELP

What are some details from the essay "Names/Nombres" that support the central idea and Alvarez's feelings on the central idea? List at least three examples of text from the essay.

Answers

The main idea of the essay is her migration process to the United States and their interaction with Americans.

What is Julia Alvarez's essay about?

Julia Alvarez's essay "names" refers to her and her family's migration process from her country of origin to the United States.

Once living in the United States, Julia identifies that American citizens do not know how to pronounce their names correctly due to the language difference between the two societies.

This problem is reinforced by these arguments:

At the hotel my mother was Missus Alburest, and I was a little girl, as in, “Hey, little girl, stop riding the elevator up and down. It's not a toy." the super called my father Mister Alberase.But at school I was Judy or Judith, and once an English teacher mistook me for Juliet.

Learn more about essays in: https://brainly.com/question/1556386

Fill in the missing pieces to solve for x:

Answers

Answer:

A: (x-4) squared

B: x+2

C: 9

D: 14

E: 7

F: 2

Step-by-step explanation:

A: This is because x^2 - 8x + 16 factored is (x-4) squared

B: Square root of something squared will remove the square root

C: Minus the variable x and 2 from the right side

D: Factor

E/F: These numbers make the right side become zero

14. in the figure at the right, ∠2 and ∠5 are_____ A. complementary angles B. linear pair C. supplementary angles D. vertical angles

Answer this please

Answers

Answer: Choice D) Vertical Angles

Reason:

When two lines cross to form an X shape, the opposite pairs of angles are known as vertical angles. They are always congruent to one another.

They do not have to be vertically aligned (meaning the angles could be sitting side by side). Example: In problem 15, angle 1 and angle 3 are vertical angles that are congruent.

The vertices of quadrilateral ABCD are (-6,6),(3,6),(3,-6) and (-3,-3)

Quadrilateral EFGH will be a dilation if quadrilateral ABCD with a scale factor of 1/3

At what coordinates should point F, of quadrilateral EFGH, be plotted?

A. (2,2)
B. (1,2)
C. (2,1)
D. (1,1)

Answers

Answer: B

Step-by-step explanation:

4 cases of Sprite are on sale for $12.

What is the cost per case?

At this rate, how many cases can you purchase for $48?

Answers

Answer

One case of sprite costs 3 dollars, All four cases are $12. You can buy 16 cases of sprite with 48 dollars.

Step-by-step explanation:

How to get the cost for 1 case:

You have 4 cases of sprite which all four combined costs $12. You divide 12 by 4 and get 3.

How to get the amount of cases of sprite you can buy with $48:

divide 48 by 3 and you get 16. Why 3? Because 3 is the amount per case and 16 x 3 is 48. Thank me later!

Answer:

It costs $3 per case of Sprite

With 48 dollars, you could buy 16 cases.

Step-by-step explanation:

12/4 = 3 12 dollars divided buy 4 dollars each equals 3 dollars per case

48/3 = 16 48 dollars divided by 3 dollars per case equals 16 cases of sprite

Which student solved the equation 107 d = 1,733.4 correctly?
Gianna's work: 107 d = 1,733.4. 1,733.4 times 107 = 185,473.8.
Teddy's work: 107 d = 1,733.4. 1,733.4 minus 107 = 1,626.4.
Sid's work: 107 d = 1,733.4. 1,733.4 + 107 = 1,880.4.
Sammi's work: 107 d = 1,733.4. 1,733.4 divided by 107 = 16.2.

Answers

Answer:

Sammis work is correct

Step-by-step explanation:

when handling equations such as 107d= 1,733.4

you see that d is being multiplied to 107 to equal the total,

so to find the answer to d you would divide 107 by the total to get your value of d

Answer:the last one

Answer:

The 6-pack contains 0.130 liters more soda.

If p(a) =. 35 and p(b) =. 45 and p(a and b) =. 25, then p(b|a) is

Answers

Answer:

p(b|a) =5/7

Step-by-step explanation:

hello :

note : p(b|a) = p(a and b)/p(a)

p(b|a) = 25/35 =5/7

The value of the probability of the event B given A, symbolically P(B|A), when it is known that P(A) = 0.35, P(B) = 0.45 and P(A∩ B) =0.25 is found as: P(B|A) = 5/7

What is chain rule in probability?

For two events A and B, by chain rule, we have:

[tex]P(A \cap B) = P(B)P(A|B) = P(A)P(B|A)[/tex]

where P(A|B) is probability of occurrence of A given that B already occurred.

We're given that:

P(A) = 0.35P(B) = 0.45P(A and B) = P(A ∩ B) = 0.25P(B|A) = to be known.

Using the chain rule of probability, we get:

[tex]P(A \cap B) = P(A)P(B|A) \\\\P(B|A) = \dfrac{P(A \cap B)}{P(A)} = \dfrac{0.25}{0.35} = \dfrac{5}{7}[/tex]

Thus, the value of the probability of the event B given A, symbolically P(B|A), when it is known that P(A) = 0.35, P(B) = 0.45 and P(A∩ B) =0.25 is found as: P(B|A) = 5/7

parallel lines have the same slope/gradient

100 BRAINLY POINTS!!!

Each point on the scatter plot below represents the number of hours a student studied for a test and the
student's test scores.

Which equation is the closest approximation to the line of best fit?

A. y = -10x + 92

B. y = 6x + 59

C. y = 10x + 45

D. y = 15x + 30

PLEASE HURRY CUH

EXPLAIN YOUR ANSWER
SHOW YOUR WORK

Answers

Let's take 1 of x axis from plot (It has three values in y so much useful)

y=-10x+92=-10+92=82

y=6x+59=6+59=65

y=10x+45=10+45=55

y=15x+30=15+30=45

A and D are out of radar .Now we need to find most approx between B and C

Go to 2 now.(Same 3 values)

y=12+59=71

y=20+45=65

65 lies between 60 and 70 ,most approximately equal .

Option C is correct

Answer:

C [tex]y=10x+45[/tex]

Step-by-step explanation:

Line of best fit (trendline) : a line through a scatter plot of data points that best expresses the relationship between those points.

All the given options for the line of best fit are linear equations.

Therefore, we can add the line of best fit to the graph (see attached), remembering to have roughly the same number of points above and below the line.

Linear equation: [tex]y=mx+b[/tex]

(where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept)

From inspection of the line of best fit, we can see that the y-intercept (where x = 0) is approximately 45. So this suggests that option C is the solution.

We can also see that the line of best fit appears to be the same distance from points (3, 75) and (4, 85). So we can use the slope formula with these points to give a rough estimate of the slope of the line of best fit:

[tex]\sf{slope=\dfrac{y_2-y_1}{x_2-x_1}}=\dfrac{85-75}{4-3}=10[/tex]

Therefore, this concurs that C is the solution and that the closet approximation to the line of best fit is [tex]y=10x+45[/tex]

A baby weighs 7 pounds at birth. the table shows the baby's weigh after each month of its birth, up to the sixth month

Answers

What’s the question?

You are putting a 10-foot ladder against your tree house. The tree house is 8 feet above the ground. How far from the tree should the ladder be set on the ground? Round your answer to the nearest tenth, if necessary.

Answers

Answer:

6 feet

Step-by-step explanation:

8×8+x×x=10×10

x×x=100-64

x=6

A penny is tossed and a number cube is rolled. determine each probability.
you must answer the problem with at least 3 sentences.
what number is the probability of landing on tails and the number 5?
p(tails,5) =

Answers

Answer:

25% chance

Step-by-step explanation:

Because a penny has two sides that is 50 percent and a cube 6 sides that's 16 percent. then you subtract 16 from 50 to get a 34 percent chance of probably.

Dont undersrand this at allll...

Answers

Answer:

2.3 2 1/3

Step-by-step explanation: you add up all the bikes then divide them by 3 because that's the number of people

2.3 is your answer, you have to do the equation

Hello people ~
factorise: 11y ^ 2 + 7y + 12

Answers

[tex]\\ \rm\rightarrowtail 11y^2+7y+12[/tex]

Un factorable

let's see why?

11×12=132

There are no factors which gives sum +7 and product 132.

Hence it's not factorable

Please Help I Don't Understand. Thank You!

Answers

Answer:

140

Step-by-step explanation:

5t + 10 = 4t + 22

t + 10 = 22

t = 12

5(12) + 10 = 70

4(12)+ 22 = 70

70 + 70 = 140

CP + PK = CK

Edit:

I'm not sure if the solution is correct , but there is at least something.

CP=PK5t+10=4t+22t=12

Now

CP+PK5t+10+4t+229t+329(12)+32108+32140

What is the area of the polygon given below?

Answers

Answer:

C. 120 square units

Step-by-step explanation:

Easy just divide this into 2 shapes.

The area of a rectangle is lenght Times Width.

2 Rectangles. So the One on the left would be

5X12=60 is the area of the first one.

The Second rectangle is

6X10=60

Both rectangles have the same area.

Now just add up both areas

60+60= 120 square units

SonicIsCoool, if you need more help I'm at your service

Answer:

C. 120 units² or square units

Step-by-step explanation:

View the attached picture

Hope it helps!

If the area of a parallelogram is 5 ⅖ ft. height of the parallelogram is 2 ⅖ ft, what is the base of the parallelogram

Answers

Answer:

3 2/5

Step-by-step explanation:

You can buy 7 pairs of jeans for $108.50. how many pairs of jeans can you get for $387.50?

Answers

Answer:

25 jeans

Step-by-step explanation:

take your total, and divide it by the number of items to get the price of a single item. then, once you have the price of the single item, you take the other price, and divide it by the single price of the jeans, to get the total amount of jeans you can buy.

A car is purchased for $23,000. Each year it loses 30% of its value. After how many years will the car be worth $6800 or
less?

Answers

Hey there!

A car is purchased for $23,000 . Each year it loses 30% of its value. After how many years will the car be worth $6700 or less? (Use the calculator provided if necessary.) Write the smallest possible whole number answer.

Set up the depreciation equation D(t) where t is the number of years in the life of the car:

D(t) = 23,000/(1.3)^t

The problem asks for D(t)<=6800

23,000/(1.3)^t = 6800

Cross multiply:

7300(1.3)^t = 24,000

Divide each side by 6800

1.3^t = 23000/6800

1.3^t = 3.38

Take the natural log of both sides:

LN(1.3^t) = LN(3.38)

Using the natural log identities, we have:

t * LN(1.3) = 1.22

t * 0.2624 = 1.22

Divide each side by 0.2624

t = 4.6494

Rounding this up, we have t = 5

Answer:

it would be 7647

close enough though

Step-by-step explanation:

1) the height is 11 ft
2) base is 9 in and the height is 3 in
I just need to know the area

Answers

1. All 4 sides are the same length

Area = 11 x 11 = 121 square ft.

2. area = 9 x 3 = 27 square in.

Solve the system by substitution.

y= 4x + 22
y= -7x

(__,__)

Answers

Answer:

y=14, and x=-2(-2,14)

Step-by-step explanation:

Isolate the term of x and y from one side of the equation.

y=4x+22 and y=-7x

y=-7x=4x+22

Solve.

-7x=4x+22

x=2

Substitute.

y=-7x, x=-2

y=-7(-2)

Solve.

Multiply.

y=14

(-2,14)

Therefore, the final answer is (-2,14).

I hope this helps you! Let me know if my answer is wrong or not.

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