what are the rules for adding and subtracting negatives and positives?

Answer:

. g bdhdjejbzjehshsuhrbxhhdhsgusuedhhdhdbdhejdbxbrjnxc

Answer:

B

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

Answer: 7

Step-by-step explanation: As a kid growing up in public schools, math definitely sucked a lot and growing up does too but math would always get harder and harder and as I learned in 1st grade my times tables and addition, I learned that 1+1 = 2 so that means if we do 1+1+1+1+1+1+1 then that would equal 7 and so now we have 7 times the amount we had before therefore making the statement valid and icey

Answer:

11

Step-by-step explanation:

A=8x+8

B=8x-4

A+B=180 degrees

therefore,

8x+8+8x-4=180

16x+4=180

16x=176

x=176/16=11

Hope it helps

Pls mark as brainliest

Answer:

316.4     in the calculator it came out like this

Step-by-step explanation:

Answer:

4096

Step-by-step explanation:

b = -8, Plug in:

b^4

(-8)^4

4096

Hopefully this helps!

Brainliest please?

Answer:

2% of 1kg

Step-by-step explanation:

20g/1kg x 100

= 20g/1000g x 100

1/50 x 100

=2

Therefore, 20g is 2% of 1kg

Hope it helps you

Answer:

2%

Step-by-step explanation:

1kg=1000g

=20/1000×100%

=2%

Answer:

x minus y in parentheses to the third power.

Step-by-step explanation:

Hope this helps! :D

Answer: x minus y in parentheses to the third power.

Step-by-step explanation:

Answer:

If the discriminant is equal to zero, this means that the quadratic equation has two real, identical roots

Answer:y>2x+1 and x+y<-2

Step-by-step explanation: Plot those two lines and they should appear the same as the graph, with the area to the left of (-1,-1) and between the lines greyed out.

Answer:

In 2003 there was only a short waiting time of 116 seconds!

That's less than TWO minutes.

However, over the years, the drive-thru wait time has gone up 20%

In 2021, due to a study/survey, the drive-thru wait time has been 3+ minutes on average.

Answer:

in 2013 the average time was 180.83

Step-by-step explanation:

Answer:

Domain and range both [tex](-\infty, \infty)[/tex]

Step-by-step explanation:

The range is determined by finding the domain of the inverse of the function(if it has one, in this case it does). The domain is easily determined, because [tex]x[/tex] can obviously range from [tex](-\infty, \infty)[/tex] without restriction.

The inverse of the function can be found as such:

[tex]x=(1/4)f^{-1}(x)-6\\x+6=(1/4)f^{-1}(x)\\4(x+6)=f^{-1}(x)\\f^{-1}(x)=4x+24[/tex].

Here, [tex]x[/tex] can also range from [tex](-\infty, \infty)[/tex] without restriction.

So, the domain and range are both [tex]\boxed{(-\infty, \infty)}[/tex]

Answer:

3 because there is one2k and then just one

Answer:

16 minutes

Step-by-step explanation:

80% of 20 =

10% ×8= 2×8=16

16 mins

Answer:

73 + 75

l=11 w=17

Answer:

95 1/8 square feet

Step-by-step explanation:

10 3/4 *8 1/2 = 43/4*17/2=430+301/8=761/8=95 1/8

[tex]\\ \sf\longmapsto 5.5\Delta t=1.2\Delta t^2[/tex]

[tex]\\ \sf\longmapsto 5.5=1.2t^2[/tex]

[tex]\\ \sf\longmapsto t^2=\dfrac{5.5}{1.2}=4.58[/tex]

[tex]\\ \sf\longmapsto t=2.14[/tex]

Answer:

-10 + -10 + -10 = -30

Step-by-step explanation:

please give brain award

Answer:

C.140

Step-by-step explanation:

If half of the circle equals 70 students. Then one half of that would be 35 students. Since there are 2 sections that are 25% each piece is equal to 35 students. If we add the total number of students together. (70+35+35) We get 140 students.

Answer:

If you're trying to evaluate 6x + 9 + (-6), then the answer would be ↓

Step-by-step explanation:

6x + 3

Answer:

If you're trying to evaluate 6x + 9 + (-6), then the answer would be ↓

Step-by-step explanation:

6x + 3

Answer:

No, she isn't

Step-by-step explanation:

(-2)² is basically -2 x -2, which we know is 4.

-2² is slightly different. In this case, you don't consider it as the square of -2, but you do the square ignoring the negative sign, and then add it at the end.

So think about it like this,

We do 2² first, and then add the minus, so it becomes -4 instead of positive 4. Does that make sense?

Answer: Incorrect

Step-by-step explanation:

Rule :

[tex](-10)^2=| -10|^2 =100 \\\\ -10^2=-(10)^2=-|10|^2=100[/tex]

Then :

[tex]\rm -2^2=-|2|^2=-4 \\\\ (-2)^2= |-2|^2=4 \\\\ Then : \\\\ -2^2 =(-2)^2 \\\\ -4 \neq 4[/tex]

Answer:

Y=3x+3

Step-by-step explanation:

Gradient = :[tex]\frac{y2-y1}{x2-x1}[/tex] = :[tex]\frac{3-15}{0-4}[/tex] = :[tex]\frac{-12}{-4}[/tex] = 3

Y= mx + c

y = 3x + c

Insert x and y values for first point(4,15)

15 = 3 (4) + c

15 = 12 + c

3 = c

Y=3x +3

Answer:

The equation of the line is y=3x+3

Step-by-step explanation:

y=mx+b is the y intercept form of the equation of this line.

m=slope, and we find the slope by the equation m=y2-y1/x2-x1. Plugging our number into that formula, we get m=3 - 15/ 0 - 4, or -12/-4, which simplifies to 3.

Now we can add our slope into the formula.

y=3x+b

Next, we solve for the y intercept, or b. You can use whatever point to get the answer, but I will use 4 ,15).

y=mx+b is the equation, or substituting the numbers, gets you 15=3×4+b. now solve for b: b=15-(3)(4). b=3.

now, with slope and y intercept plugged in, the final equation is. y=3x+3

Answer:

x+(x-50)=180

2x-50=180

2x-50+50=180+50

2x/2=230/2

x=115

Step-by-step explanation:

according to the question,

x-50+x=180°

2x-50=180°

2x=230°

x=115°.

now, for x-50° = 115°-50°= 65°

hope this helps you.

Answer:

pants: 28.8 jacket: 7.2

Step-by-step explanation:

4/5 (36) = 28.8

36 - 28.8= 7.2

Answer:

1.5 pounds more.

Step-by-step explanation:

3.75 - 2.25

= 1.50.

Answer:

1.50 pounds

Step-by-step explanation:

Paula orders a macaroni salad and coleslaw each weighing 3.75 and 2.25 pounds respectively

so, to find how many more pounds of macaroni salad than coleslaw we do,

3.75-2.25=1.50

therefore,  macaroni salad has 1.50 pounds more than coleslaw.

Answer:

50400

Step-by-step explanation:

hope this helps

Answer:

2× 22=44÷4=6/4 o 6.4 6.4=44. ×2 x=6.4