1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivolga24 [154]
3 years ago
9

ACT help?

Mathematics
1 answer:
timama [110]3 years ago
6 0

Hello!

Firstly, we can complete the linear function. To complete it, we need to find the y-intercept of the equation. To find it, we use the equation: y = -2/3x + b, substitute the point (2, 1) into the equation, and solve for b.

1 = -2/3(2) + b

1 = -4/3 + b (add 4/3 to both sides)

b = 7/3

The completed linear equation is: y = -2/3x + 7/3.

The easiest way to find the ordered pair that is on the graph is to graph the equation and label the points (the graph is posted below).

As seen on the graph, the ordered pair, (8, -3), is graphed. To prove it is correct, we can substitute the ordered pair into the linear function.

-3 = -2/3(8) + 7/3

-3 = -16/3 + 7/3

-3 = -3 | True!

Therefore, the answer is choice D, (8, -3).

I don't know any good sites with ACT practice problems, sorry and good luck!

You might be interested in
If the volume of the planter is 3,072 cubic inches, how tall is the planter?
andrezito [222]

\it \mathcal{V} =\dfrac{\mathcal{A}_b\cdot h}{3} \Rightarrow h = \dfrac{3\mathcal{V}}{\mathcal{A}_b}= \dfrac{3\cdot3072}{\mathcal{A}_b}\ \ \ \ \ (*)
\\\;\\ \\\;\\
\mathcal{A}_b = \dfrac{\ell^2\sqrt3}{4} = \dfrac{16^2\sqrt3}{4} =\dfrac{16\cdot16\sqrt3}{4} =4\cdot16\sqrt3=64\sqrt3\ \ \ \ (**)
\\\;\\ \\\;\\
(*),\ (**) \Rightarrow h=\dfrac{3\cdot3072}{64\sqrt3} = \dfrac{3\cdot48}{\sqrt3} = \dfrac{\sqrt3\cdot\sqrt3\cdot48}{\sqrt3} = 48\sqrt3\  inches


4 0
3 years ago
BRAINLIEST IF NO SPAM OR LINKS, WILL REPORT IF SO.
kati45 [8]

Answer:  dot plot 1 is 6

dot plot 2 is 15

dot plot 3 is 13

dot plot 4 is i dont know

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP!!!!
Black_prince [1.1K]

Answer:

The probability that you would choose a green candy: \frac{45}{139} or approximately 32%.

Step-by-step explanation:

The general form of probability can be calculated as the following fraction:

\frac{number of desired outcomes}{total number of outcomes}

First, to find the total number of outcomes, you need to add all of the candies together:  42 + 45 + 20 + 32 = 139, so there are 139 total outcomes.  Since there are a total of 45 green candies, the probability of choosing green from the total can be written as:  

\frac{45}{139}

Dividing the numerator by the denominator and multiplying by 100 gives us the percentage of approximately 32%.

5 0
3 years ago
A chemist mixes a 25 % acid solution with a 45% acid solution to make 600 ml of a 30% acid solution. How much of each type of so
PilotLPTM [1.2K]

Answer:

25 % acid solution = 450ml

45% acid solution = 150ml

Step-by-step explanation:

Let

x = 25 % acid solution

y = 45% acid solution

x + y = 600

.25x + .45y = .30(600)

x + y = 600 (1)

.25x + .45y = 180 (2)

From (1)

x = 600 - y

Substitute x = 600 - y into (2)

.25x + .45y = 180

.25(600 - y) + .45y = 180

150 - .25y + .45y = 180

150 + .20y = 180

.20y = 180 - 150

.20y = 30

Divide both sides by .20

y = 30/0.20

= 150

y = 150ml

Substitute y = 150 into

x + y = 600

x + 150 = 600

x = 600 - 150

= 450

x = 450ml

25 % acid solution = 450ml

45% acid solution = 150ml

6 0
3 years ago
The expression 2m+ 10c gives the amount of money in dollars , a dessert store makes from selling m muffins and a c Cakes How muc
sveta [45]

Answer:

$46

Step-by-step explanation:

Given that :

The expression : 2m+ 10c ( amount made from selling muffins and C cakes.)

This means cost per muffin is 2 and cost per cake is 10

Hence, amount made from selling 3 muffins and 4 cakes ;

2(3) + 10(4)

$6 + $40

= $46

6 0
3 years ago
Other questions:
  • What are the subsets of {red, blue, yellow}
    15·1 answer
  • Can someone please explain this to me? Thank you so much! (#18, H.O.T problems)
    14·1 answer
  • Pilar wanted to use a estimation to solve a decimal addition problem. She correctly used estimation to rewrite the problem as 12
    10·1 answer
  • Coconut palm trees can reach heights of up to 100 feet. Suppose you are lying on the beach at a distance of 60 feet from a 48-ft
    8·2 answers
  • Riley buys a swim pass for the pool in January. The first month costs $30. Each month after that, the cost is $20 per month.
    6·2 answers
  • In a class of 7, there are 4 students who play soccer.If the teacher chooses 3 students, what is the probability that none of th
    10·1 answer
  • What price would you expect to pay for a stock with
    10·1 answer
  • Wrapping paper is on sale at 3 rolls for $4.25. How many rolls can Danika buy with $20?
    9·2 answers
  • What is 28/20 simplified? And what is 20/28 simplified
    12·2 answers
  • The table shows the transportation method of employees at a certain company. What percent of the total amount of employees drive
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!