Mathematics Middle School

f(-2)when f(x) = 2x^2 - 3x + 28?

^ = squared

Answers

Answer 1

the answer of f(-2) is 42

Answer 2

Answer:

Step-by-step explanation:

2x2^2+6+28

2^3+6+28

8+6+28

42

Related Questions

Henry’s baseball team needs new equipment each new baseball will cost 5.50$ And each new bat will cost 14.95 how much will the team spend if they buy 8 new baseballs and 2 new bats

Answers

Answer:

73.9

Step-by-step explanation:

multiply 5.50 by 8 and 14.95 by 2

EDIT: then add the products together

Cormac is making 31 phone calls each week as part of a fundraiser. Last week, he made 8 phone calls on weekdays. Which equation could be used to find x, the number of phone calls he made last week on weekend days? HELPP

Answers

Answer: k-y

Step-by-step explanation: Let's call the overall phone calls made every week 'k', and the phone calls made on the weekdays 'y'. Since 'x' is the number of phone calls made per weekend, y+x should equal k. But we don't know what x is so we need to make x the subject, which would be x = k-y.

e.g: k=31, y=8:

31-8= 23 phone calls made on the weekend.

0.23,19%,1/5 least to greatest
Please help!

Answers

Answer:

19% then 1/5 then .23

Step-by-step explanation:

Your answer would be 19%, 1/5, 0.23.

1/5 equals 20% of 1

0.23 equals 23% of 1

Help me out please, And answer both, Thank you so much, and enjoy your day!

Answers

Answer:

The first exercise:

Is:

Right triangle.

And the second exercise:

Is:

B. II and III

Question 1 of 5
Which expression uses the associative property to make it easier to evaluate
8(1:)?
O A. 8(.5)
O B. 453)
O C. (8.5)
O D. (8-3)

Answers

Answer:

A

Step-by-step explanation:

Solve this linear equation using substitution. (Please show work!)

X + Y = 7

7x + y = 1

Answers

Answer:

y=1-7x

Step-by-step explanation:

7x+y=1

The first thing to do is get the y by its self. So u cancel the 7x out by-7x and bring it to the other side.

7x-7x = 0

Now all we have left is: y=1-7x

Hope it helps and is right.

The answer is 7=1-7x

plzzzz help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:64 or 576

Step-by-step explanation:

I'll give you brainlest if you can solve this one! I need STEP, please read the question.

Answers

Answer: 1.)= -26 , 2.)= 4 , 3.)= -20 4.)=2 5.)=48 6.)=20 7.)=68 If my answer is correct can you please choose the brainlest. GOOD LESSONS ♡

Sorry for another one! WILL GIVE BRAINLIEST!! DUE TODAY! Help please

Answers

Answer:

1.5 or 6/4

Step-by-step explanation:

y=1.5x+2

or

y=6/4x+2

6/4 is the slope! hope this helps!

I need it done asapp

Answers

they can be arrange differently. yes they matter only in some cases like fractions, division, and subtraction.

Helpppp please?? tysm

Answers

Answer: d.

Step-by-step explanation:

Trapezoid so D!!!! Is the answer

Whit usually drives 5/8 mile to work on the expressway. When the traffic is bad he takes another route that is 7/8 mile long. How much shorter is his usual route?

Answers

His first way is 2/8 shorter than his second way

His first route was actually 2/8 mile shorter than his second route!

Meredith borrows $12,560 and pays 2 percent simple interest each year for 4 years. What is the total amount of interest that she will pay on the loan?
$251.20
$1,004.80
$11,555.20
$13,564.80

Answers

Meredith borrow 12,560 so if you do some basic calculations, %2 of that is 251.20 dollars of interest per year

The total amount of interest she will pay for 4 years (251.20 x 4) is 1004.80 dollars for 4 years.

your welcome :)

2% of 12,560 would give you 251.2 and 251.2 X 4 = 1004.8 so your answer is B

Several items in a store are on sale. Complete the table with the correct prices.... btw pls dont ans this bc im trynna pass math so if u know it then pls help me

Answers

Answer:

the first is 12 ,the second is 91 ,third is 49 and fourth is 48

Step-by-step explanation:

im not sure about the last two 100% but im pretty sure :/

The first blank is $48. Discount (60x20)/100=12. 60-12=48.

The second blank is $49. Discount:
(140 x 65)/100 = $91.00 Final Price:
140 - 91.00 = $49.00

The third blank is $91.

The fourth blank is $12.

The probability of choosing the letter G and flipping tails is...

Answers

Answer:

1/7

Step-by-step explanation:

that is the

answer

Answer: 1/14

Step-by-step explanation:

there are 7 tiles making it 1/7 that youll chose the "G" tile and a 1/2 percent chancer of flippig tails therefore 1/7 x 1/2 = 1/14.

Use the interactive graph to produce an orange line identical to the blue line. Then change the value of b only. Which equation would be parallel to, and have no points in common with, y = 2(x + 3)? y = x + 6 y = –2x –6 y = 2x – 3 y = 2x + 6

Answers

Answer:

Equation c

Step-by-step explanation:

[tex]y = 2x - 3[/tex]

Answer:

C

Step-by-step explanation:did you know the answer is C omg who knew thats crazy its C haha. ITS C !!!!! OMG!!! WOW!!!! THATS CRAZY ITS C!!!!! MAN THATS CRAZY!!!!!!! man

A parking lot is filled with cars and motorcycles. In all, there are 50 vehicles parked there. There is a total of 150 wheels on these vehicles. All cars have four wheels, and all motorcycles have two wheels. How many cars and how many motorcycles are in the parking lot?
Pls Help, 1st Brainliest

Answers

Answer:

75 motorcycles and 126 r 6 cars

Step-by-step explanation:

350 motorcycles and 650 cars

Anyone need advice on how to come out? Answer if so. LGBTQ+ peeps only answer.

Answers

Answer:

Find a good suprise way to to tell them

Step-by-step explanation:

Good luck!!!

Answer:

Come out when you're ready to. You don't have to come out if you don't feel safe. That's what I'm doing. Wait for the perfect moment.

Step-by-step explanation:

I hope this helps you! Good luck my fellow community member!

can someone help?? meeeee not thelp just whats the answer?

Answers

Answer: 120/3=40

Step-by-step explanation:

So, the answer is 40

Find the unit rate. Round to the nearest hundredth, if necessary. $340 for 14 ft2

Answers

Answer:

24.29

Step-by-step explanation:

Answer:

The answer would be 24.29

what is 45x 56y I need to find the slope?

Answers

Answer:

y=x+_ /// slope is 1 tho

Step-by-step explanation:

well if its (4,5) and (5,6)

slope intercept form: y=mx+b

slope: y2-y1/x2-x1

6-5/5-4=1/1= 1

y=x(1x)+__ i dont remeber

Over 5 days, Skylar sheared 300 sheep. How many would she be able to shear in 26 days?

Answers

1560 bc 300 divided by 5 equals 60 and 60 times 26 equals 1560

Answer:

1560

Step-by-step explanation:

300/5 = 60

60*26 = 1560

In ΔABC, point M is the midpoint of side AB and point D is the midpoint of segment MC. Prove that the area of ΔADC= the area of ΔBMD

Answers

A line segment from a vertex to the midpoint of the opposite side is a "median". A median divides the area of the triangle in half, as it divides the base in half without changing the altitude.
AAMC is half AABC. AADC is half AAMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
ABMC is half AABC. ABMD is half ABMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
Then, AADC = 1/4 AABC = ABMC, so AADC = ABMC by the transitive property of equality.

true or false 0.625 = 62.5% = 5/8

Answers

Answer:

true

Step-by-step explanation:

Answer:

It true

Step-by-step explanation:

Helene was given the following enlargement of a triangle. A triangle has side lengths 2 centimeters, 7 centimeters, and 5 centimeters. The corresponding sides are A, B, and 30 centimeters. What are the lengths of sides A and B? A = 30 cm, B = 39 cm A = 30 cm, B = 48 cm A = 20 cm, B = 26 cm A = 20 cm, B = 33 cm

Answers

Answer: A=20cm, B=33cm

Step-by-step explanation:

Answer:

A=20cm, B=33cm

Step-by-step explanation:

What is 78.852 rounded to the nearest tenth?

Answers

Answer:

78.9

Step-by-step explanation:

sense the hundredth place is 5 or higher

Answer:

78.9

Step-by-step explanation:

The tenth is the first number after the decimal, so you would round up since the number next to it is a 5.

what is 2+2. i need an answer now

Answers

Answer:

4

Step-by-step explanation:

The table shows the results of a Fun Run. James’s time for running 2 mi. was 2.4 min. slower than Mike’s time. If t represents how long it took for James to run 2 mi., what is t? A. 5 min. B. 7.2 min. C. 10.7 min. D. 12.0 min.

Answers

B I’m sorry if I’m wrong

whats the point on the graph

Answers

Answer:

(0,-2.5)

Step-by-step explanation:

Answer:

(0,-2.5)

Step-by-step explanation:

.....................

ILL GIVE BRAINLIEST.

This is a simple graph, but I want to know if I’m right. If the line goes through the origin does that automatically mean it’s positive?
And when it doesn’t go through the origin does that mean it’s automatically negative?
THANK YOU.!

Answers

Answer: This is a negative graph and it is proportional because it goes through the origin.

Step-by-step explanation:

Just beacause it goes through the origin does not mean it will be positive nor negative, if the line goes from the top left of the grid slanted down, it is negative. If the line goes from the top right of the graph slanted down, it is positive. It is proportional because it is a straight line that goes through the origin.

Answer:Under↓↓↓

Step-by-step explanation:

Ok so in this case it's a negative slope, because the line is going from left to right.

If the line was going form right to left then It would be a positive slope.

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