Mathematics Middle School

what is the value of 2x^2-2(x+4) when x = 5?
A.–32
B. 24
C. 32
D. 40

Answers

Answer 1

Answer:

Algebra 1 Answer Key with notes.pdf go on that and there are the anwers and the answer key :)

Step-by-step explanation:

Answer 2

Answer:

b

Step-by-step explanation:

Related Questions

Find the value of c in the triangle shown below.

Answers

Answer:

x=6.40312 rounded to 6.4

Step-by-step explanation:

Answer:

The answer is going to be 6.4 Hope it helped

Step-by-step explanation

heres TOBI EVERYONE!!!!!!!!! Cutest dog EVER!!!!!! Whats 9+45?

Answers

Answer:

54

Step-by-step explanation:

Answer:

54. Nice dog!

Step-by-step explanation:

In a colony of penguins, 32% are male. If there are 80 male penguins, what is the total number of penguins in the colony?

Answers

250 penguins. Since 32 is the percent you put it over 100 and since there is 80 you multiply 80 and 100 then divide it with 32

The total number of penguins are 250.

What is percentage?

A percentage is a portion of a whole expressed as a number between 0 and 100 rather than as a fraction.

Given that, 32% are male and there are 80 male penguins,

Let the total numbers of penguins be x,

32% of x = 80

x = 80*100/32

x = 250

Hence, The total number of penguins are 250.

For more references on percentage, click;

https://brainly.com/question/29306119

#SPJ2

hey macs i need help ASAP

1: draw a diagram for 8(32)

2:Write a number sentence that only uses addition to represent 8(32)

3:Write a number sentence with mutilpulication parentheses and addition to represent 8(32)

4: Find the product of 8(32)

Answers

Answer:idrk

Okay so like the answer is 5;6 because the ratio of five should be equal to 4

Step-by-step explanation:

NEED HELP ASAP

Make a table that relates the length and width of a rectangle with a constant area of 100 square feet.

Answers

Answer:

sorry i thought i knew the aanswer :(

Step-by-step explanation:

pls- if someone could explain this to me along with the answer I'd be super grateful
-20b-5c

Answers

Wait what do u mean?
The answer to this problem is: -25bc or without combined : leave as is

Evaluate the expression

3 + 4 x 5^1

26 - 4^2 ÷ 5^1

( 3^3 - 2^4 ) x 5

20 - ( 5 - 2)^2 + 2 x 3

Answers

Answer:

7. 23

8. 18

9. 55

10. 17

Step-by-step explanation:

3+4 x 5^1
7 x 5^1
=35

26-4^2 / 5^1
22^2 / 5^1
484 / 5
= 96.8

(3^3 - 2^4) x 5
(37 - 16) x 5
21 x 5
= 105

20 - (5 - 2)^2 + 2 x 3
20 - (3)^2 + 2 x 3
20 - 9 + 2 x 3
20 - 9 + 6
20 - 15
=5

What are the steps for this and the answer I need help!!

{2x-4}{2}=11

Answers

Answer:

x = 19/4

Step-by-step explanation:

(2x - 4)(2) = 11

We can rewrite the equation in a more simple form.

2(2x - 4) = 11

Apply distributive property.

4x - 8 = 11

Get 4x alone. To get 4x alone, add 8 to both sides.

4x - 8 + 8 = 11 + 8

4x = 19

Get x alone. To get x alone, divide both sides by 4.

4/4x = 19/4

x = 19/4

I hope this helps! Let me know if I got anything wrong or if you need any more help.

Step-by-step explanation:

First, you distribute 2 among 2x and -4. This leaves you with 4x - 8 = 11 because when you distribute, you multiply both numbers inside the parenthesis by the number outside of it. Then, you need to eradicate the 8 on the left of the equal sign, so you add 8 to -8 to make it 0, and add 8 to 11 to make it 19. This leaves you with 4x = 19. Finally, you must divide 4x and 19 by 4, leaving you with x = 4.75 or 4¾.

1. (2x - 4)(2) = 11

2. 4x - 8 = 11

3. 4x - 8 + 8 = 11 + 8

4. 4x = 19

5. 4x/4 = 19/4

6. x = 4.75 or 4¾

Rigoletto’s portraits specializes in making circular portraits of people. A large portrait is 42 inches in diameter. A medium portrait is 14 inches in diameter. What is the difference in circumference of the two portraits? Use 3.14 for pi.

Answers

Answer:

588

Step-by-step explanation:

Airplane wingspan; Scale of 1 in: 48 ft
Model: 18 in. Actual:
ft

Answers

Step-by-step explanation:

48ft +18in +1in

48ft + 19in

19in - 12in= 7in

48+1 = 49ft

Answer:  49ft and 7in

help me please thank you xD xD

Answers

Answer:

c.

Step-by-step explanation:

The answer is C hope this help if yes like plsss

at the Charleston Balloon Festival, a hot air balloon is sighted at an altitude of 800 feet. It appears to be descending at a steady rate of 20 feet per minute. Which of the following expressions describe the height of the hot air balloon after any given number of minutes?
a. 20-800m
b. 800+20m
c 20+800m
d 800-20m

Answers

Answer:

D 800-20m

Step-by-step explanation:

If I am wrong then it could  be B. I hope I could help.

The answer would be D because it subtracts 20 every minute

How do I answer the red question?

Answers

Answer: who made this question I think you need to round 250 to the nearest whole number I’m not sure.

Step-by-step explanation:

Answer:

If I am reading this correctly, then the probability is [tex]\frac{6}{250}[/tex], or in decimal form, 2.4%, which rounds to 2%.

Step-by-step explanation:

To solve probability problems, you need to make a fraction, with the denominator being the # of reinforcements (250) and the numerator being the # of soldiers with measles. (6, if I'm reading this correctly.) So, divide [tex]\frac{6}{250}[/tex], which is 2.4%, and to the nearest whole number, that's 2%.

Hope this helps! Feel free to mark me Brainliest if you feel this helped. Good luck on your assignment, and if you need any more clarification, just comment below and I'll try to help. Have a good day. :)

Simplify (2-6)(5)(23 * 5)2

Answers

Answer:

-4600

Step-by-step explanation:

Answer:

-4600

Step-by-step explanation:

Michael is making windmills for a class project. The colors he has to choose
from are shown in the chart.
Windmill Colors
Base Blade
Tan White
Red Blue
Orange Green
Yellow
Peach
He will choose 1 base color and 1 blade color for each windmill. Which list
contains all the possible windmill combinations Michael can pick?
F Tan-White, Tan-Blue, Tan-Green, Tan-Yellow, Tan-Peach, Red-White,
Red-Blue, Red-Green, Red-Yellow, Red-Peach Orange-White, Orange-
Blue, Orange-Green, Orange-Yellow, Orange-Peach
G Tan-White, Tan-Blue, Tan-Green, Tan-Yellow, Tan-Peach, Red-White,
Red-Blue, Red-Green, Red-Yellow, Red-Peach
H Tan-White, Tan-Blue, Tan-Green, Tan-Yellow Red-White, Red-Blue, Red-
Green, Red-Yellow Orange-White, Orange-Blue, Orange-Green, Orange-
Yellow
j Tan-White, Tan-Blue, Tan-Green, Tan-Yellow, Red-White, Red-Blue,
Red-Green, Red-Yellow, Orange-White, Orange-Blue, Orange-Green,
Orange-Yellow Blue-Green, Blue-Blue, Blue-White, Blue-Yellow, Blue-
Peach

Answers

Answer:

f,, G, H, or J

Step-by-step explanation:

What first guy said:)

PLEASE HELP

The scatter plot below shows the number of pizzas sold during weeks when different numbers of coupons were issued. The equation represents the linear model for this data.



y = 3.4x + 43



According to the model, what is the average number of pizzas sold in one night if no coupons are issued?


0 pizzas

21 pizzas

43 pizzas

60 pizzas

70 pizzas
A graph measuring average number of pizzas sold nightly in relation to number of coupons issued. A line indicates that pizzas sold increases as number of coupons issued increases

Answers

Answer:

43 + 3.4 =46.4

Step-by-step explanation:

add it up

I would probably go with 43

Kendra wants to enclose her circular flower garden with a fence. The garden measures 4.5 yards across . How many fencing will Kendra need ?

Answers

14.14 because 4.5/2= 2.25
2.25*3.14=7.065
7.065*2= 14.14
The answer is 14.14

Help pls for brainlest?

Answers

Answer:

C: Water runs off into lakes and streams

Step-by-step explanation:

I Hope It Helps

Answer:

percipatation falls

Step-by-step explanation:

Condensation is the process by which water vapor in the air is changed into liquid water. ... These clouds may produce precipitation, which is the primary route for water to return to the Earth's surface within the water cycle. Condensation is the opposite of evaporation.

A bag contains 8 black marbles, 16 white marbles, 14 red marbles, and 10 green marbles. A marble is drawn at random from the bag.
What is the probability that the marble drawn will not be white?

A. 1/3
B. 2/3
C. 3/4
D. 15/ 16

Answers

Answer:

B. 2/3

Step-by-step explanation:

Total marbles: 48

White marbles: 16

48-16=32

The fraction is: 32/48 simplified is 2/3

B
We have a total of 48 marbles. 16 of them are white.
48-16=32
32/48 simplifies to 2/3

Which answer shows the following expression in simplest form?


y(2.5 + 7) + y - 2

A 10.5y - 2

B 3.5y - 5

C 2.5y + 9

D 10.5y + 2


(its a pre test but i still wanna do good)

Answers

It’s will be A bc u have to multiple it’s will be (9.5y) +y-2=10.5y-2

Answer:

The answer will be a

Step-by-step explanation:

A file Mrs. Campbell wants to download says it will take about 32 minutes. Her computer says 24 minutes have passed since the download began. What percent of the file has been downloaded?

Answers

75%
32•.75=24
hope this helps

Answer:

75.00%

Step-by-step explanation:

The first step is to divide 24 by 32 to get the answer in decimal form: 24 / 32 = 0.7500 Then, we multiplied the answer from the first step by one hundred to get the answer as a percentage: 0.7500 * 100 = 75.00%

plz help what is the answer for this question?

Answers

Answer:

Step-by-step explanation:

THE ANSWER IS C

Answer:

It should be B; (0, 6)

Shauna borrows $400 from her parents to buy a phone. She agrees to pay them back plus 4% simple interest over one year. Use this information to answer




What is the total amount of money Shauna will owe her parents?


A
$384

B
$416

C
$463

D
$508

Answers

Answer:

B:416

Step-by-step explanation:

Answer: B ($416)

Explanation: ...

whats 7x6-6x11-66+55?

Answers

the answer is -35 hope this helped

A school is arranging a field trip to the zoo. The school spends 649.92 dollars on passes for 46 students and 2 teachers. The school also spends 396.98 dollars on lunch for just the students. How much money was spent on a pass and lunch for each student?

Answers

Answer

$22.76 each student

Step-by-step explanation:

I really hope this is right and this helps. Sorry if I'm wrong.

649.92/48=13.54
396.98/46=8.63
13.54+8.63=$22.17 per student

Danielle is solving math fast facts at a proportional rate. She completes 35 fast facts in 5 minutes. Read each statement below and decide whether it is true or false. Select all that are true.



Show your work in the sketch feature.

A. The constant of proportionality is 17 and it represents that in 17of a minute she can complete 1 fast fact
B. The constant of proportionality is 7 and it represents that she can complete 7 fast facts in 1 minute
C. If she completed 63 fast facts, she was doing math for 9 minutes
D. If she was doing math for 14 minutes, she completed 2 fast facts

Answers

Answer:

b

Step-by-step explanation:

because if you do 35 divided by five it is 7

answer:
B.
explanation:

the answer, please thanks anyway.
The cargo-carrying part of Billy’s truck is a rectangular prism. It has a length of 1 meter and a width of 3 meters. The maximum volume of sand the truck can carry is 108 cubic meters What is the height of the truck?

Answers

36


Why? 3 x 1=3
108/3=36
36 x 3=108

Hope it helps

Which equation is best represented by the graph below?




y=14x+8y is equal to 1 fourth x plus 8

y=14x−2y is equal to 1 fourth x minus 2

y=4x−2y is equal to 4 x minus 2

y=4x+8y is equal to 4 x plus 8

Answers

hi, i would love to help you but there is no graph below :(
answer:

y=14x-2y is equal to 1 fourth x minus 2

Explanation: use rise over run use each answer to see which fits the graph.

Sheldon harvests the strawberries and tomatoes in his garden.

Sheldon also picks tomatoes from his garden. He picked 5310 kg, but 1.5 kg were rotten and had to be thrown away. How many kilograms of tomatoes were not rotten? Write an equation that shows how you reached your answer.

Answers

Answer:

5310-1.5=x

x=5308.5

Step-by-step explanation:

HELP ASAP Capone eats food at a constant rate. The formula below shows how many pounds of food he has remaining (y) after x days.

y=-1.2x+62

How much food does he have left after 15 days of eating? (round to the nearest tenth's place if necessary) (2 points)

Answers

I’m pretty sure that if y is pounds, and x is days than the answer would be 44?

I’m saying that it would be -1.2 x (15) +62 which is 44. Sorry if I’m wrong I’m kinda bad at math lol

Answer:

Step-by-step explanation:

M=-2

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