Algebra 1 unit 4 mid quiz

Algebra 1 Unit 4 Mid Quiz

Answers

Answer 1
Answer. Option A. y>3x+2
Explanation. Because the line is dotted, we know it is a > equation. We know that in slope-intercept form, the mx stands for is the slope (rise over run), by looking at the graph, we find that the slope is in fact 3 (or 3/1). For the second part of the equation, we know it’s the y-intercept; therefore, option A is correct because the y-intercept is in fact 2. Hope this helps, let me know if it’s correct so others can use it :)
Good luck.
Answer 2

The inequality that represents this graph is y < 2x + 2.

What are inequalities and their types?

Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The symbol a < b indicates that a is smaller than b.

When a > b is used, it indicates that a is bigger than b.

a is less than or equal to b when a notation like a b.

a is bigger or equal value of an is indicated by the notation a b.

The dotted line represents strictly less than or greater than.

From the graph, we can conclude that when x = 0, y = 2, and when x = 1 y = 4, and values of y are strictly less.

∴ The inequality that represents this graph is y < 2x + 2.

learn more about inequalities here :

https://brainly.com/question/20383699

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Related Questions

I need help with this problem (THIS IS NOT FROM A TEST)

Answers

Answer:

44.5 degrees.

Step-by-step explanation:

Since these triangles are congruent, their angles are the same.

Therefore, we can set an equation with the 2 labeled angles (which are angles C and F):

2.5x+8=3.5x-7

8=x-7

x=15

We can plug 15 back into one of the equations:

2.5(15)+8 = 45.5

This means angle F is 45.5.

To find out the measure of angle E, recall the fact that the angles in a triangle add up to 180. Since this is a right triangle, and F = 45.5, we can set up an equation and solve for x:

90 + 45.5 + x = 180

135.5 + x = 180

x = 44.5

Therefore, the angle E is 44.5 degrees.

Answer:

44.5

Step-by-step explanation:

These triangles are the same so we know that

2.5x + 8 = 3.5x - 7

Subtract 2.5 x from both sides

8 = x - 7

Add 7 to both sides

15 = x

Substitute x

37.5 +8

45.5

There is a right angle so we must add 45.5 + 90 to get 135.5

Subtract 135.5 from 180 to get

44.5

What is the value of 3/4 divided by 3/8

Answers

Answer:

2

Step by Step Explanation

Keep Change Flip

3/4x8/3=24/12=2

Answer:

2

Step-by-step explanation:

3/4 divided by 3/8

3/4 x 8/3

cross simplify to get

1/4 x 8/1

cross simplify again to get

1 x 2 = 2

need help not sure ​

Answers

7^6 is ur answer, 7^6

Answer:

6

Step-by-step explanation:

You add 3 and 5 to get 8 and then you will subtract 2 from 8 to get 6

Please help me if you know the correct answer, thank you

Answers

9515 1404 393

Answer:

Option 4Option 1no solution

Step-by-step explanation:

1. The system is represented by the matrix that has the coefficients in the left three columns and the constants in the rightmost column. Values and signs must match. Only Option 4 makes any sense in this context.

__

2. In the first equation, the y-term has a coefficient of 0. (There is no y-term.) The only matrix choice with a coefficient of 0 in the second column of the first row is Option 1.

__

3. Parallel lines do not intersect, so there can be no solution.

Mai's new bedroom has a walk-in closet with a floor that measures 20 square
feet. Her closet ceiling is 9 feet from the floor.
What is the volume of her closet?

Answers

Answer:

The volume of he bedroom is about 180 feet :)

Write as a product:

25a^2−0.01b^10

Answers

Answer:

(5a + 0.1b^5)(5a + 0.1b^5)

Step-by-step explanation:

25a^2 − 0.01b^10 =

This follows the pattern: x^2 - y^2 = (x + y)(x - y)

= (5a + 0.1b^5)(5a + 0.1b^5)

If f(x) = 3x2 + 2x - 2, find f(8) - f(-5)

Answers

Answer: 143

Step-by-step explanation:

f(8) = 3(8)^2 + 2*8 - 2 = 3*64 + 16 - 2 = 192 + 16 - 2 = 206

f(-5) = 3(-5)^2 + 2*(-5) - 2 = 3*25 + (-10) -2 = 75 - 10 - 2 = 63

f(8) - f(-5) = 206 - 63 = 143

guys help me 3(x−4)≥−2x+3

Answers

Answer:

sensya na bobo den ako e✌

The angle represents the phase shift, determined by the initial conditions of the experiment or the position of the weight at t = 0. If the weight is at its maximum positive position (weight is above equilibrium) at t = 0, then = 0. If the weight is at its maximum negative position (spring is stretched and weight is below equilibrium) at t = 0, then . If the weight is traveling in the negative direction and passing through equilibrium at t = 0, then . In the response box, describe the initial condition of our experiment; specifically, describe the position of the weight and the direction in which it was traveling.

Answers

Answer:

the weight was approaching the equilibrium position from the positive direction. The weight was on its way down, with the spring stretching

Step-by-step explanation:

This is the word for word answer but be careful and don´t copy it exactly!! paraphrase the answer using your own words

Having trouble with finding the rise over run and simplifying the fraction

Answers

Answer:
The slope is 2/3.

Explanation:
The slope of the line is equal to the rise over run, or in other words, the distance the line travels up over the distance the line travels right.

When we look at the two points, the second point is 3 to the right and 2 above the first. Therefore, the slope, or rise/run of the line is 2/3.

I hope this helps! Please comment if you have any questions :)

5(r-10)=51 what is r equal to?

Answers

Answer:

r=20.2

Step-by-step explanation:

A 33 pound bag of grass seed holds 2 pounds less than 5 smaller bags of seed. Find the weight of the smaller bag of seed.

Answers

Answer:

7 pounds

Step-by-step explanation:

33+2=35....35/5=7

Answer:

The answer is 7.

Step-by-step explanation:

33 + 2 = 35

35 ÷ 5 = 7

The price of a stock steadily decreased by a total of $123 over the past 14 months.

Answers

What happened when the stock decreased by $123?

Write an algebraic expression for the difference of 5 from b .

Answers

Answer:

b-5

Step-by-step explanation:

Hope is n years old. Interpret the following expression if the expression represents Hunter's age.

3n -8

A.
Hunter is 8 years younger than Hope's age.

B.
Hunter is 8 years older than 3 more than Hope's age.

C.
Hunter is 8 years younger than 3 times Hope's age.

D.
Hunter is 8 years older than 3 times Hope's age.

Answers

Answer:

its A and B

Step-by-step explanation:

Because if you do the opposite of subtracting is adding so that means you add 8 to 3 which equals to 11 years old.

so that means Hope is 11 years old

The answer is A and B

A system of equation is shown: 2x = -y + 6 -4x + 3y =8 what is the solution tonthis system of equations? (-1, -4) (1, 4) (4, 4) (-4, -1)

Answers

Answer:

(1 , 4)

Step-by-step explanation:

2x = -y + 6

-4x + 3y = 8

2x = -y + 6

2x - 6 = -y

-2x + 6 = y

-4x + 3y = 8

-4x + 3(-2x + 6) = 8

-4x - 6x + 18 = 8

-10x + 18 = 8

-10x = -10

x = 1

-2x + 6 = y

-2(1) + 6 = y

-2 + 6 = y

4 = y

A researcher predicts that listening to music while solving math problems willmake a particular brain area more active. To test this, a research participant hasher brain scanned while listening to music and solving math problems, and thebrain area of interest has a percentage signal change of 58. From many previousstudies with this same math problems procedure (but not listening to music), it isknown that the signal change in this brain area is normally distributed with amean of 35 and a standard deviation of 10.
(a) Using the .01 level, what shouldthe researcher conclude? Solve this problem explicitly using all five steps of hypothesistesting, and illustrate your answer with a sketch showing the comparisondistribution, the cutoff (or cutoffs), and the score of the sample on this distribution.(b) Then explain your answer to someone who has never had a course in statistics(but who is familiar with mean, standard deviation, and Z scores).

Answers

Answer:

one equal to 5

Step-by-step explanation:

5x x 66

What is the opposite of 4:3?

Answers

Answer:

3:4???

Step-by-step explanation:

Answer:

3:4

3/4

Step-by-step explanation:

reciprocal

what is the answer to this question?

Answers

Answer:

1st box

3rd box

5th Box

Step-by-step explanation:

For the first equation, you have to move the decimal place 11 places to the right.

For the second equation, you have to move the decimal 13 places to the right.

-tell me if I'm wrong

Which term describes the relationship between L A and 2 B, if the m LA= 84º and m 2 B = 96º7
A
vertical
В.
adjacent
С
supplementary
D
complementary

Answers

Answer:

Supplementary

Step-by-step explanation:

84 plus 96 equals 180 degrees

supplementary angles are angles that add up to 180 so their relationship is supplementary

what is the value of 2.5x+17+21x-25=180

Answers

Answer:

x=8

Step-by-step explanation:

2.5x+17+21x−25=180

Simplify 2.5x+17+21x−25

23.5x−8=180

Move all terms not containing x to the right side of the equation.

23.5x=188

Divide each term by 23.5 and simplify.

x=8

Hope this helps! :) Plz mark as brainliest

Suppose that two balanced dice are tossed repeatedly and the sum of the two uppermost faces is determined on each toss. a) What is the probability that we obtain a sum of 3 before we obtain a sum of 7? Hint: Let A denote the event of a sum of 3. Let B denote the event of no sum of 3 or 7. Now, begin to list the out the sample space in terms of A and B - it should be recognizable in the lecture notes. Hint: A useful infinite series result when |z| < 1: 1 + z + z 2 + z 3 + z 4 + . . . = 1 1 − z

Answers

رتلمفخيحاحتحثحقنغنفهصنفوامكغمبخصخا

f(x)=3x^2+6x-18 , find f(10)

Answers

Answer:

f(10)=342

Step-by-step explanation:

f(10)= 3(10)^2+6(10)-18

complete your exponet first and multiply 6(10)

f(10)=3(100)+60-18

multiply the 3(100)

f(10)=300+60-18

add and subtract all the numbers together

f(10)=342

A diagram of a swimming pool is shown.
3.5 m
What is the approximate circumference of the swimming pool? Use 3.14 as an estimate for t.
Ο Α. 7 m
Ο Β. 11 m
Ο Ο Ο Ο
Ο C. 22 η
O D. 28 m

Answers

B
Because 11 m it’s the answer to that give me the same thing

Answer:

B. 11

Step-by-step explanation:

Im good with a Scientific calculator.

Help plz asap I really need help with this

Answers

Answer:

the only solution is -7

Step-by-step explanation:

i am 95% sure that im right

Answer:

3rd

C

The only solution is -7

Step-by-step explanation:

(Score for Question 1: ___ of 6 points)
Refer to the equation 4x+3y=24
A Complete the table of values for at least 2 points. Show your work.
B How did you find these two values? Answer in complete sentences.
C Use the table of values to graph the line.
You must complete all parts to receive full credit.



Answer:
x y



(Score for Question 2: ___ of 5 points)

Answers

I think the first is B

1/2 mi = 880 yd
True
O False

Answers

Answer:

True.

Step-by-step explanation:

If you multiply the length value, you'd get 880 yd. Which basically answers it, the answer is true.

Answer:

True

Step-by-step explanation:

I did this before it kind of complicated but trust me  it true

Jane wants to buy carpet for her room measuring 400 square feet. She purchased carpet that costs $20 per square yard. How much will it cost to have her room carpeted? (1 square yard = 9 square feet) Explain how you solved it.

Answers

Answer:

About $888.88

Step-by-step explanation:

divide 400 by 9 to get the total number of how much square yards she needs

400/9 = 44.44444444

Multiply 44.44444444 with $20 to get the amount which is about 888.88

Please help me with this question? ​

Answers

Answer:

Step-by-step explanation:

The answer is A

If it's not then i'm sorry

Answer:

None of the above

Step-by-step explanation:

A. b ≠ 0

B. Solve for b:

-7/(2 b) = (2 b)/7

Cross multiply:

-49 = 4 b^2

-49 = 4 b^2 is equivalent to 4 b^2 = -49:

4 b^2 = -49

Divide both sides by 4:

b^2 = -49/4

Take the square root of both sides:

Answer: b = (7 i)/2 or b = -(7 i)/2

3 + 8 + 6 + 6 + 6 = 58 + 6
How do we solve this

Answers

Answer:

93

Step-by-step explanation:

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