Simplify each expression involving signed numbers.


-7 – 2 =
12 + (-4) =
-8(-6) =

18/-3=

Answers

Answer 1

Answer:

-5 , 8 , 48 , -6

Step-by-step explanation:

-7- -2 = -5

This complies with the rule that 2 negatives make a positive.

12 + (-4) = 8

You just ignore the brackets.

-8(-6) = 48

The -8 next to the bracket with no symbol means you need to multiply, and again 2 negatives make a positive.

18/-3 = -6

As the 18 is not negative, but -3 is, the answer is also a negative because one negative and one positive make a negative!

Hope this helps and have a good day!

Answer 2
-5 8 48 and -6

hope I helped

Related Questions

Please answer like this:
1) -insert answer-
2) -insert answer-

Answers

Answer:

  1) 2^9 = 512

  2) 2^(3t) = 2^6 for t=2

Step-by-step explanation:

1) An exponent is used to signify repeated multiplication. Here, the factor 2 is repeated 9 times, so the expression can be written using an exponent as ...

  2^9

Using any of a variety of means, the value of this expression can be found to be ...

  2^9 = 512

__

2) Assuming the bacteria reproduce by multiplying by some factor in a given time, we can divide the original expression into 3 parts:

  (2×2×2) × (2×2×2) × (2×2×2)

If this represents the number after 3 hours, then the number after 2 hours is expected to be ...

  (2×2×2) × (2×2×2) = 2^6

That is, there will be (2 h)/(3 h) = 2/3 times as many multiplications by a factor of 2. (2/3)(9) = 6 will be the exponent for the number after 2 hours.

1. 2^9 = 512
2. as you can split up the fact in 3 hours it is 2^9 to find out one hour (divide by 3) which is 2^3 so we would just multiply it by 2 which equals 2^6

Solve for x.
7/8 = x/16

Answers

Answer:

X=16*7/8= 14. by multiplying. 16 *7/8

X= 14
8 • 2 = 16
7 • 2 = 24
You’re welcome

PLEAS HELP




A scuba diver descends in the water at a rate of 2312 feet per minute for 2.6 minutes. He immediately changes course when he sees a large fish and ascends at a rate of 28 feet per minute for 2 minutes.


What is the scuba diver's position relative to sea level after the 4.6 minutes?


Enter your answer as a decimal in the box.


ft

Answers

2312 FPM for 2.6 minutes

2312 x 2.6 = 6011.2

28 FPM for 2 minutes

28 x 2 = 56

6011.2 descend

55 ascend

0-6011.2 = -6011.2

ans + 56 = -5955.2

:)

Answer:

Descends: 2,312 x 2.6 = - 6,011 (when rounding otherwise known as - 6,011.2, this number is negative because he is descending)

Ascends: 28 x 2 = 56

- 6,011 + 56 = -5,955 (in 4.6 minutes)

Step-by-step explanation:

I believe this is the correct answer, I'm not 100% sure though. Please tell me if I'm wrong. Have a wonderful rest of your day or night! ~ ^w^ ~

Please help me with this math question!

Answers

Answer:

your answer is C.

Step-by-step explanation:

Answer: I think D I might be wrong

Step-by-step explanation:

Which number line best shows how to solve -4 - (-8)?

Screen Shot Below If U Need It!

Answers

Answer:

The answer is the 3rd option

Step-by-step explanation:

As -4 -(-8)

= -4 +8

= 4

Please mark. as brainliest

Answer:

B

Step-by-step explanation:

One lower arrow is going all the way to the Four.

While |-8| = 8.

So it has it pointing to the 8. This means that 8 - -4 = 12

PLS ANSWER ASAP!! I WILL GIVE BRAINLIEST TO BEST ANSWER!!
The model shows 1 over 2. Rectangle model divided into two equal sections, first section is labeled one one-half and shaded in. Which of the following correctly models and gives the quotient of 1 over 2 divided by 3 over 10? Rectangle model divided into ten equal sections, first three sections are labeled three-tenths and colored dark, the next two sections are colored light to complete one-half, model equals one and two-thirds. Rectangle model divided into twenty equal sections, first three sections are labeled three-tenths and colored dark, the next seven sections are colored light to complete one-half, model equals three and one-tenth. Rectangle model divided into twenty equal sections, first three sections are labeled three-tenths and colored dark, the next seven sections are colored light to complete one-half, model equals three and one-third. Rectangle model divided into ten equal sections, first section is labeled three-tenths and colored dark, the next four sections are colored light to complete one-half, model equals five.

Answers

Answer:

Ok I guess

Step-by-step explanation:

So first you need understand the question next send a pic maybe I can help U then

Solve six and two-sixths times one and one half.

six and two twelfths

eight and six twelfths

nine and six twelfths

ten and two twelfths

Answers

Step-by-step explanation:

First you need to change the mixed fractions into improper fraction which is 38/6 and the other fraction turns into 3/2 now since the question was about multiplying we multiply. So there are numbers that can be reduced like 3 divided by 6 and 38 divided by 2. So now that there are simpler nmbers that cannot be reduced more we multiply and we get 19/2 which if you wanted as a mixed fraction is 9 and 1/2.

Answer:

the answer is nine and six twelfths

Step-by-step explanation:

hope that helped

Giving Brainliest if correct! :D

A proportional relationship between the number of pounds of cabbage (x) and the price in dollars (y) is graphed, and the ordered pair (5, 3) is on the graphed line.


Part A: What is the price of 1 pound of cabbage? Show your work. (8 points)

Part B: What does the ordered pair (10, 6) on the graph represent? Explain in words. (2 points)

Answers

about .60 per pound- 3/5=price per pound
the ordered pair represents 10 pounds of cabbage for 6 dollars

Answer:

Part A: (1, 0.6)

Part B: 10 pounds of cabbage is 6 dollars

Step-by-step explanation:

Part A: 3 divided by 5= 0.6

Part B: I already explained part b

Math homework ! Please help.

Answers

22

Hope this helps!!!

Answer:

perimeter-22 yards please give brainliest!!

Step-by-step explanation:

count the squares on the OUTSIDE of the shape all around, and you'll get 22! dont worry about the coordinate points; they're just there to confuse you!! the answer is 22. please give brainliest!!

What is [tex]rs^{3}[/tex] divided by 8-2r if r=8 and s=3?

Answers

Answer:

-2304

Step-by-step explanation:

rs^3=(8)(3)^3=13824 r*2=8*2=16 8-16=-8

13824/-6=-2304

:)

I think the Answer is -2304
I hope I helped :3

Find the sale price and then add tax.

Pete wants to buy a new PlayStation 5 controller that is on sale. The controller cost $70 and is on sale for 40% off. If the sales tax is 10.1% how much will he pay for the controller?

Answers

Answer:

Your answer is $52.2 :)

Step-by-step explanation:

First, we need to find the sale, which is 40% of $70, we can do that by doing this equation: (40% x $70) / 100 = 28.  Now we minus 28 from 70 in this equation: 70 - 28 = 42.  Now we do tax, which is 10.1% of $42.  We can do the same equation, but with the new information, so the new equation is ($42 x %10.1) / 100 which is 4.2042, and since we are talking money, we can make 4.2042, 4.2 (Rounded 0.042 down). Lastly, we add $4.2 (Tax) and $48 (Discounted price) to get $52.2. You're welcome :D

The answer would be 46.24 because 40% off of 70 is 42 and forty two mutiplied by .101 would be 4.24

During a period of extreme cold, the average daily temperature dropped decreased by 112°F day. How many days did it take for the temperature to decrease by 9°F? Which equation would you use to find the solution?

A x + 112 = 9x + 112 = 9

B x − 112 =−9x − 112 =−9

C −112x = −9−112x = −9

D 112x = 9

Answers

It takes about 4 days for the temperature to decrease by 9°F.

An equation is an expression that shows the relationship between two or more variables or numbers.

Let x represent the number of days. Given that the temperature drop decreased by 1 1/2°F each day (- 1 1/2), for it to decrease by 9°F (-9):

-1 1/2 * x = -9

-1.5x = - 9

x = 4 days

It takes about 4 days for the temperature to decrease by 9°F.

Find the units digit of the following within the indicated number base: $(14_8)^2$
(I will say brainliest whoever gets correct first.)

Answers

Can you say what is the line between the 14 and 8
subtraction synol probalbly

Which multiplication problem is modeled on the number line?
2(– 4)
4(2)
2(4)
4(– 2)

Answers

Answer:

4(-2)

Step-by-step explanation:

The correct answer is 4(-2) because the leeps to each number has 2 spaces between them and they are moving to the left of the number line that means that it is -2,and there are 4 leaps.

4(-2)


I’m good at math lol

Multiplying Integers with Integer Tiles –5(–2) =

Answers

Answer:

-5 x -2 = 10

Step-by-step explanation:

- x - = +

5 x 2 = 10

The answer is 10 because a negative number times a negative number is a positive number

PLEASE HELP ME IM GIVING BRAINLIEST

Answers

Answer:

The one you chose is the correct answer.

Step-by-step explanation:

Adding all the [tex]x's[/tex] up, you will get [tex]3.38x[/tex]. Adding up all the non-variable numbers, you get 20.22. Your answer is C.

hope this helped.

your answer is C
explanation:

if a net is made of a triangular prism, what shapes contain? How many will there be of each shape?

Answers

Answer:

5 shapes, 3 rectangles 2, Triangles

Step-by-step explanation:

2 triangles
5 shapes
3 rectangles

· A ball is dropped from a height of 256 feet. After it hits the ground, it rebounds to a height that is 75% of its previous maximum height. Use proportional reasoning to complete the table. Bounce 1 2 4 3 Maximum Height (ft) 256 Height of Bounce (ft)​

Answers

Answer:

The answer is 192 ft. :D

Step-by-step explanation:

PLEASE mark me brainliest! :)

HELPPP
What would be your pay per hour for working at Miracle Maintenance?

Answers

Answer:Hello Uhhhhcora,

Scotts Miracle-Gro Mechanical Maintenance Technicians earn $61,000 annually, or $29 per hour, which is 32% higher than the national average for all Mechanical Maintenance Technicians at $44,000 annually and 8% lower than the national salary average for ​all working Americans.

Step-by-step explanation:

Hoped i helped. Ask me anything for questions. ♥Please subscribe to Addie Nahoe.♥

Answer:

$27.66

Step-by-step explanation:

what is the area of a parallelogram with a length of 9in and a height of 10in and a width of 8in

Answers

Answer:

72 sq in.

Step-by-step explanation:

I'm not sure what you mean, but it sounds like the base is 9 in, the side is 10 in, and the height is 8 in. If so, the area is 9 * 8 = 72 sq in.

Answer:

i think the person above is correct

Step-by-step explanation:

please help me its very serious & i need an answer

Answers

Answer:

1

Step-by-step explanation:

the answer is 1 sorry if you don't need it anymore

which of these statements is true for f(x)=5x(6)^x

Answers

Answer:

The answer if B. Hope this helps.

Step-by-step explanation:

Identify the terms, coefficients, and constants in the expression.

2m^2+15+2p^2

Answers

terms- 2m^2, 2p^2
coefficients- 2 & 2
constants- m&p
terms:2m^2p^2
coefficients: 2 and 2
constants m and p


-2x <-12

solve the inequality

Answers

Answer:

x > 6

Step-by-step explanation:

-2x < -12

divide by -2

switch signs because you're dividing by a negative number

-2x/-2 < -12/-2

x > 6

Hope this helps :)

Answer:

x > 6

Step-by-step explanation:

Solve -2x <-12 for x.  Your answer must be a set of real numbers.

Divide both sides by -2.  Note that if we here divide by a negative number, we must reverse the direction of the inequality symbol:

-2x < - 12

-----   ------

 -2      -2

This becomes x > 6, "the solution set"

What is the perimeter of the square?





A. 17 ft
B. 34 ft
C. 48 ft.
D. 68 ft.

Answers

Answer:

P = 68 ft

Step-by-step explanation:

The perimeter of a square is given by

P = 4s  where s is the side length

P = 4(17)

P =68

P = 68 ft

Answer

D 68 ft.

Step-by-step explanation:

How many 2 digit prime numbers can you make make with 2,3,7,9 without repeating a digit?

Answers

The numbers can be:237927392937329772939273Prime numbers are 23, 79, 29, 37, 97, 73

So you can make 6 prime numbers.

Answer:

6

Hope you could get an idea from here.

Doubt clarification - use comment section.

Answer:

Hey mate!

Step-by-step explanation:

Lets take two places _ _

Now first position is filled in 4 ways (can use 2 3 7 9) that implies 4C1

then second position is filled in 3 ways since for first position we used a digit

and the condition is that not to repeat the digits, so it is done in 3C1 ways.

so the answer is 4*3 or (4C1*3C1)=12;

pls mark me as brainliest!!

What is not an example of kinetic energy?

Question 6 options:

Particles in motion, such as electricity


Elastic energy, such as a stretched archery bow.


Substances in motion, such as light, heat, and sound


Objects in motion

Answers

Answer: Please dont listen to the person above you the answer is C because a stretched bow is potential energy because the arrow is not moving but stretched holding potential energy for it to be released to its target thus making answer *C* correct

its honestly sad seing people hungry for points anyways enjoy your answer

Elastic energy, such as a stretched archery bow is not an example of kinetic energy.

What is Energy?

Energy is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light.

Energy are of two types:

Potential Energy

Kinetic energy

potential energy, stored energy that depends upon the relative position of various parts of a system

Kinetic energy is the energy an object has because of its motion.

In the given options,  Elastic energy, such as a stretched archery bow is not an example of the kinetic energy. because a stretched bow is potential energy because the arrow is not moving but stretched holding potential energy for it to be released to its target.

Hence, Elastic energy, such as a stretched archery bow is not an example of kinetic energy.

To learn more on Energy click:

https://brainly.com/question/1932868

#SPJ2

A line passes through (3, 7) and (6, 9). Which equation best represents the line?
y = 3/2x + 5

y = 2/3x + 5

y = 3x + 2

y = 2/3x + 2

Answers

Answer:

y=2/3x + 5

Step-by-step explanation:

y=2/3x + 5
is the answer

what’s the area of this figure? lol i have no idea helppp

Answers

Answer:

285

Step-by-step explanation:

For the top section, we can portion out 20 x 8 = 160.

Next, directly in the middle is a 5 x 5 square = 25.

Finally, we have a right triangle with dimensions 10 x 20 so the area would be 10 x 20 / 2 = 100.

160 + 25 + 100 = 285.

Answer:

take all the numbers and multiply...

Step-by-step explanation:

Find the sale price with percent markdown.

Markdown (savings) = percent off (% save) x original cost

Sale price = original cost – savings


A store advertises a 30% markdown on a gaming console. It normally sells for $660. How much would you save on the console? And what is the final sale price?

The savings is: $_________

The final sale price is: $_________

Answers

Answer:

56 Lemons

Step-by-step explanation:

The savings is $198 and the final price is $462
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