Mathematics Middle School

PLZZZZZZZZZZZZZZZZZ HELP ME WITH THIS IT DUE TODAY and explain!!!!!

1 is the first image question


2 is second image question

3.-(-½ )-3(-2)

PLZZZZZZZZZZZZZZZZZ HELP ME WITH THIS IT DUE TODAY And Explain!!!!!1 Is The First Image Question2 Is
PLZZZZZZZZZZZZZZZZZ HELP ME WITH THIS IT DUE TODAY And Explain!!!!!1 Is The First Image Question2 Is

Answers

Answer 1

Answer: (if you could mark me brainliest that'd be great!)

1. -45

2. -7

3. 13/2

Step-by-step explanation:

1.  [tex]-(-5)^{2} +4(-5)[/tex]

evaluate the power to get  [tex]-25+4(-5)[/tex]

then multiply the numbers to get -25 - 20

calculate the difference

answer is -45

2. [tex](-3)^{2} -4(-1)(-4)[/tex]

evaluate the power to get  [tex]9-4(-1)(-4)[/tex]

calculate the difference of 9-16 (which is the simplified version of [tex]9-4(-1)(-4)[/tex])

answer is -7

3. [tex]-(-1/2)-3(-2)[/tex]

remove the parenthesis

multiply to get 1/2+6

calculate the sum

answer is 13/2

Related Questions

television: $479, 40% markup



Mark Up: _______________

Answers

Answer:

Final price of $670.60, marked up by $191.60

Step-by-step explanation:

You multiply the original value of $479 with 0.4 (40%) to get 191.6. This is 40% of the television's value. Since you are adding 40% of the value to the original value, you add 191.6 with 479 to get $670.60.

Answer:

$191.6

Step-by-step explanation:

$ 479 multiplied by .40

                 =

           $  191.6

What fraction of 8 is 2 1 /2 ?


Select all that apply.


Practice

A

2 1/ 2 ÷ 8


B

5 /2 × 1/ 8


C

8 ÷ 2 1 /2


D

? × 8 = 2 1/ 2

Answers

Answers are a b and d
The answer is B and D

The table shows conversions of common units of capacity.

Units of Capacity
Customary System Units
Metric System Units
1 gallon
3.79 liters
1 quart
0.95 liters
1 pint
0.473 liters
1 cup
0.237 liters

Approximately how many centiliters are in 3 quarts? Round answer to the nearest unit.

Answers

Answer:

13.2

Step-by-step explanation:

I did it

Don't bother answering if you are just gonna play

Answers

1) 6 remainder 1. 2) 0.8
Number 2 is 4/5 hope it helps

Joseph owns a dog that weighs 110 pounds. A bag of dog food recommends feeding a 40 pound dog 24 ounces of food per day. If x represents the amount of food needed to feed the larger dog, which proportion CANNOT be used to calculate how much food Joseph should feed his dog?

Answers

Answer:

the proportion which CAN be used is 1760/x = 640/24   THEREFORE ANY OTHER PROPORTION CANNOT BE USED

Step-by-step explanation:

J's dog= 110lbs =1760 ounces

food recommendation on bag: 40lbs:24 ounces, therefore in ounces 760 ounces (dog weight): 24 ounces (food)

J's dog required amount,  110:x which in ounces is 1760 ounces : x ounces

so we get:

1760/x = 640/24  

 take cross products,

4224= 640x

x= 66 ounces

the proportion which CAN be used is 1760/x = 640/24   THEREFORE ANY OTHER PROPORTION CANNOT BE USED

I thinks it’s 66 ounces

Which of the following statements are true about 28? Select all that apply.

It has an exponent of 2.
It can be read as "eight squared."
It can be written as a multiplication problem with eight factors of 2.
It has a power of 256.
It can be read as "two raised to a power of eight."
It has a base of 2.
It has a power of 128.

Answers

Answer should be 300

Answer:

It can be written as a multiplication problem with 8 factors of 2

It has a power of 256

It can be read as "two raised to a power of eight"

It has a base of 2

Hope this helps! <3

My math app isn't working :(
Translate the following equation into slope-intercept form.
3(y - 3) = -2x

Answers

Answer:

y= -2/3x + 3

Step-by-step explanation:

Answer "A" for the first "B" for the second "C" for the third and "D" for fourth

Answers

I will say D because we know that the other side is negative but this side is posits that’s my opinion and we can see that if is negative is actually out
D because I agree with the other guy

Each table represents a proportional relationship. For each, find the constant of proportionality, and write an equation that represents the relationship

Answers

y=3.14x
hope this helpsss

I am the only one who made can account because the stupid ads keep on showing up or is it just me

Answers

Answer:

I think most of us wanted the ads to stop.

Answer:

just you

Step-by-step explanation:

Fill in the blanks with two rational numbers. _*_= -0.75 What must be true about the relationship between the two numbers you chose (Pick two numbers that when multiplied, equals -0.75)?

Answers

0.25 times -3 is -0.75

Denzel has saved $75 in his bank account and saves an additional $12.50 every week. Halle has saved $339 in her bank account but spends $20.50 each week. After how many weeks will Denzel and Halle have the same amount of money in their bank accounts?

Answers

Answer: 264 weeks

Step-by-step explanation:

Just subtract $339 and $75 and you will get your answer!

Hope this helps! :)

After 8 week Denzel and Halle have the same amount of money in their bank accounts.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Denzel has saved $75 in his bank account and saves an additional $12.50 every week.

And,  Halle has saved $339 in her bank account but spends $20.50 each week.

Now,

Let number of weeks in which Denzel and Halle have the same amount of money in their bank accounts = x

So, We can formulate;

For Denzel;

⇒ $75 + $12.50x

And, For Halle;

⇒ $339 - $20.50x

So, we get;

⇒ $75 + $12.50x = $339 - $20.50x

Solve for x as;

⇒ $20.50 + $12.50 = $339 - $75

⇒ $33x = $264

⇒ x = $264 / $33

⇒ x = 8

Thus, After 8 week Denzel and Halle have the same amount of money in their bank accounts.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ2

450 push-ups in 18 days
A.35 push-ups/day
B.25 push-ups/day
C.15 push-ups/day
D.45 push-ups/day

Answers

Answer:

B.

Step-by-step explanation:

To find the answer you would divide 450 push ups by 18. and that gives you 25 the number of push ups you did in 18 days.

- 16 - x = 24
what is the X

Answers

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

First we have to add the 16 on both sides...

[tex]-16-x=24\\-x=40[/tex]

Now we are still not done we still have to divide -1 on both sides, we can't have a negative x...

[tex]x=-40[/tex]

So x equals -40.

X = -40

-16 - x =24
+16. +16
-x = 40
-1(-x) = -1(40)
x= -40


Point (x, y) is reflected across the y-axis. Which are the coordinates of its image? (-x, y) (-x, -y) (-y, -x) (x, -y)

Answers

the answer is -x,y since you flipping the point across the Y axis

A car manufacturer is reducing the number of incidents with the transmission by issuing a voluntary recall. During week 3 of the recall, the manufacturer fixed 391 cars. In week 13, the manufacturer fixed 361 cars. Assume that the reduction in the number of cars each week is linear. Write an equation in function form to show the number of cars seen each week by the mechanic.

f(x) = 3x + 400
f(x) = 3x + 391
f(x) = −3x + 391
f(x) = −3x + 400

please explain ;-;

Answers

Answer:

f(x) = -3x + 400.

Step-by-step explanation:

To write the equation in function form to represent the number of cars seen each week by the mechanic, we need to consider the given information.

Let's define:

x: the number of weeks since the start of the recall.

Given that the reduction in the number of cars each week is linear, we can determine the equation by considering the initial number of cars fixed and the reduction rate.

In week 3, the manufacturer fixed 391 cars, which indicates that in the third week (x = 3), the number of cars fixed is 391. This gives us a reference point.

Now, we can find the equation in the form f(x) = mx + b, where m represents the slope (reduction rate) and b represents the initial value (number of cars fixed in the starting week).

To find the slope (m):

We need to determine the change in the number of cars fixed from week 3 (x = 3) to week 13 (x = 13).

The change in x is 13 - 3 = 10.

The change in the number of cars fixed is 361 - 391 = -30.

The slope (m) represents the rate of change, so we calculate it as:

m = (change in the number of cars fixed) / (change in x) = -30 / 10 = -3

Now, we have the slope (m = -3).

To find the initial value (b), we substitute the values of x and f(x) into the equation:

f(3) = 391

Plugging in the values:

-3(3) + b = 391

Simplifying the equation:

-9 + b = 391

Solving for b:

b = 391 + 9 = 400

Now, we have the slope (m = -3) and the initial value (b = 400).

Therefore, the equation representing the number of cars seen each week by the mechanic is:

f(x) = -3x + 400

Susie has $15.66 to spend on lunch for herself and her friend. If she spends an equal amount on each person. How much will Susie spend on each of them? *

Answers

Answer:

7.83

Step-by-step explanation:

Because if you want to see the equal amount

of 2 people you will need to divided by

the number of people and that is 2 and

15.66 ÷ 2 = 7.83

15.66 \ 2 = 7.83
Bye

HELP
what is the square root of 16 as a decimal

Answers

Answer:

256

Step-by-step explanation:

Answer:

4.000 is the square root

Step-by-step explanation:

Jaylon makes $57,000 and is getting annual raises of $2,500. Anita makes $64,000 and is getting annual raises of $1,500. How many years,y , will it take for Jaylon and Anita to make the same amount of money?
1.75
30.25
7
121

Answers

Answer:

it's seven

Step-by-step explanation:

the answer is seven.

Luis surveyed his neighborhood to find out what kinds of pets his neighbors owns. There are 5 neighbors with fish, 6 with cats, and 9 with dogs. Each neighbor owns only one pet.

What percentage of the neighborhood pet owners have fish?


4%

5%

20%

25%

Answers

Answer:

I think it’s 20%

Step-by-step explanation:

Have a great day!

I agree with the person ^ it’s 20%

Max rode his bike 40 miles in 2 1/2 hours.
Which complex fraction can be used to calculate Max’s average speed?
A. 40 mi/5/2 hr
B. 2/5 hr/40 mi
C. 40 mi/2/5 mi
D. 5/2 hr/40 mi

Answers

Answer:

A. 40 mi/5/2 hr  

Step-by-step explanation:

What is so fragile that saying its name breaks it?

Answers

Answer:

Silence

Step-by-step explanation:

I have always liked that riddle.

(But that isn't Math)

:D

Answer:

Maths

Step-by-step explanation:

Mathematics Mathematics MathematicsMathematicsMathematicsMathematicsMathematicsMathematicsMathematics

a car drove 92 km/h for 4 hours. How far did it travel?

Answers

Answer:

368 km

Explanation:

92 * 4 = 368

Answer:

368 km/h.

Step-by-step explanation:

Hey! Let's solve this problem.

First step: So, you are driving 92km/h for 4 hours, right? Key words are: km, hours, 4 and 92.

So, how would we find this out? All we need to do is multiply 4 x 92, and we get 368! But, make sure when you put your answer put the km/h, as if you don't you could possibly get it wrong.

Six hundred people bought tickets to a concert. If 46% were students, how many were NOT students?


324


540


460


276


PLEASE HURRY! I'M TIMED!

Answers

Three hundred twenty four

Answer:

324

Step-by-step explanation:

the question is the picture

Answers

Answer:

a

Step-by-step explanation:

Answer:

A. 31  1/6

Step-by-step explanation:

A change in temperature of 6°C is equivalent to a change in temperature of
°F.

Answers

Answer:

42.8 Farenheit

What is the domain and the range

Answers

Answer:

domain: [-3, 3] range [-10, -1]

Step-by-step explanation:

I did this in interval notation lmk if I should change it

domain: {-3,3} {-10,1}
pls correct me if im wrong


Can anyone help with this?

Answers

The table shows a proportional relationship between 2 cups of milk and 3 tablespoons of chocolate syrup.

The unit rate is 1 1/2 tablespoons of chocolate syrup for every 1 cup of milk
The unit rate is 1 1/2 for ever 1 cup of milk :D

The planet Venus is on average 2.5 * 10 ^ 7 kilometers from Earth. The planet Mars is on average 2.25 * 10 ^ 8 kilometers from Earth. When Venus, Earth, and Mars are aligned, what is the average distance from Venus to Mars?

Answers

Answer:

0.8? srry if im wrong

help me with problem plz

Answers

A(1,5,7 B(2,3,6 C1,2,3,D,4,6,7

Step by step solution A<
B
D
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