Answers
refer to steps for answer!
Step-by-step explanation:
you just have to put the given values in place of the variable names and then simply calculate.
(-2² + 2²) - 2(-2² - 2²) = (4 + 4) - 2(4 - 4) = 8 - 2×0 = 8
so, B is the right answer.
please remember the correct sequence of operations :
first are brackets.
then exponents.
then multiplications and divisions.
and then (at last) additions and subtractions.
and also please remember : multiplying a negative number with a negative number creates a positive result.
that is of course also true for squaring a negative number, as ² just means that the negative number is multiplied with itself.
now you also know the result of -2³, right ?
as this means -2 is multiplied 3 times by itself. what does that do to the sign ?
-2 × -2 = 4 (positive).
but now we have to multiply a third time
4 × -2 = -8 (because multiplying a positive number with a negative number creates a negative result).
Related Questions
I need help question istheimage attached
Answers
Answer:
length= 35 feet and width= 10 feet
Step-by-step explanation:
You are given the perimeter of the rectangular deck is
90 feet.
2 x length + 2 x width = 90 You are also given that the deck's length is 5 feet less than 4 times it's width. That is length = 4 x width - 5
Those two equations are your system of linear equations. The second equation can be plugged into the first equation. This gives us an equation entirely in terms of width.
2x (4 x width - 5) + 2 x width =90
Distribute the 2 though
8 x width - 10 + 2 x width = 90
Combine like terms with width.
10 x width - 10 = 90
Add 10 to both sides.
10 x width = 100
Divide both sides by 10 width = 100
Now you can plug width into your original equation for length above. Recall: length = 4 x width - 5
Length = 4 x 10 - 5
Length = 40 - 5
Length = 35
help plesssssssssssssssssssssssssssssss
Answers
Answer:
(d) 12
Step-by-step explanation:
Answer:
the answer is D
Step-by-step explanation:
Put the following numbers in order from least to greatest with least at the top and greatest at the bottom.
Answers
-10.8
1/3
4
|-8|
Hope this helps : )
Answer:
-10.8
-11/2
1/3
4
|-8|
Step-by-step explanation:
-11/2 = -5.5
1/3 = 0.33
|-8| = 8
Nine cyclists were each asked the distance in miles they biked last week.
Their responses are given below.
Complete the grouped frequency distribution for the data.
In the distribution, the frequency of a class is the number of distances in that class.
(Note that we are using a class width of 6.)
Answers
The frequency for 2 to 7 is 3
The frequency for 8 to 13 is 4
The frequency for 14 to 19 is 2
The grouped frequency distribution for the data with the given intervals is 3, 4 and 2 respectively.
Given that, nine cyclists were each asked the distance in miles they biked last week. The distance travelled by 9 cyclists is 16, 8, 2, 6, 8, 11, 9, 15 and 7.
We need to complete the grouped frequency distribution for the data.
What is the grouped frequency distribution?In this type, the data is arranged and separated into groups called class intervals. The frequency of data belonging to each class interval is noted in a frequency distribution table. The grouped frequency table shows the distribution of frequencies in class intervals.
Now, the frequency distribution for the given intervals is as follows:
That is, for intervals 2 to 7 the frequency is 3.
For intervals 8 to 13 the frequency is 4.
For intervals 14 to 19 the frequency is 2.
Therefore, the grouped frequency distribution for the data with the given intervals is 3, 4 and 2 respectively.
To learn more about the grouped frequency distribution visit:
https://brainly.com/question/4679134.
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Gena wants to estimate the quotient of –21.87 divided by 4.79. Which expression shows the estimate using front-end estimation?
-21 ÷ 4
-21 ÷ 5
-20 ÷ 4
-20 ÷ 5
Answers
Hope this helps.
If you want me to explain why, just ask! :)
3(x-4)=5(x+2)
a-x=11
b-x=-11
c-x=1
d-x=-1
Answers
Answer:
3
(
x
−
4
)
=
5
(
x
+
2
)
a
−
x
=
11
b
−
x
=
−
11
c
−
x
=
1
d
−
x
=
−
1
.
Exact Form:
x
=
11
3
Decimal Form:
x
=
3.
¯
6
Step-by-step explanation:
Answerrrrrrrrrrrrrrrrrrrrrrrrrrrrr:
B
x = -11
1000000 x 1000000= what?
Answers
Answer:
1000000000000
Step-by-step explanation:
1000000x1000000=1000000000000
The solution of the expression 1000000 x 1000000 in exponential form is [tex]10^{12}[/tex].
A collection of constants, variables connected using one or more arithmetic operator is called an expression.
Example = 4y, 3x+4.
The way of writing or expressing a number in powers is called exponent.
Example: [tex]3^2[/tex]
Here, 3 is the base and 3 is the power.
The given expression can be written in the index or exponential form as:
1000000 x 1000000 = [tex]10^6 \times 10^6[/tex]
Since, the given exponent has the same base.
So, using the law of exponent, it can be written as:
[tex]a^m + a^n = a^{(m+n)[/tex]
[tex]10^6 \times 10^6 = 10^{(6+6)}[/tex]
= [tex]10 ^{12}[/tex]
Thus, the solution of the expression 1000000 x 1000000 in exponential form is [tex]10^{12}[/tex].
Learn more about exponents here:
https://brainly.com/question/5497425
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i need to write the slope-intercept form of the equation of each line
Answers
............................
There is no slope because it is a straight line. The intercept is -1 so your equations would be y=0x-1 but the 0x can be taken out because it is nothing. So your answer is y=-1
What is the equation of the line graphed below?
Answers
2/1 is the slope and 2 is the starting point
1. ESTIMATE THE NUMBER OF GALLONS REQUIRED TO PRODUCE 22 T SHIRTS. IS YOUR ESTIMATE AN OVERESTIMATE OR UNDERESTIMATE? EXPLAIN.
2. HOW MANY GALLONS OF WATER ARE REQUIRED TO PRODUCE 15 POUNDS OF CHOCOLATE? WRITE AND SOLVE AN EQUATION. LET 'g' BE THE NUMBER OF GALLONS.
(hidden water cost/ 1 pound of chocolate = 3,170 gal - 1 ream of paper = 1,321 gal -1 gallon of milk = 880 gal - 1 cotton t-shirt = 713 gal - 1 hamburger = 660 gal)
3. Extension : The owner of a company has a goal to reduce the company's water footprint by 100,000 gallons in one year. He estimates that if the company reduces its yearly need for paper by 80 reams, he will meet his goal. Could the owner have estimated correctly? Justify your answer.
Answers
Better picture lol, but pls help it's due tmr
Answers
2. The second shape is multiplied by 3
3. they are not similar
4. not similar
5. i don’t think it’s similar
6. angle L and N were subtracted by 10 and angle K and M were added by 10
I’m not too sure about this sorry if it’s wrong!
Answer:
1) Not Similar. 2/6 does not equal 6\12
2) Yes. 5/3 = 15/9
3)Yes. 10/30=8/24
4) Not Similar. 13/16 does not equal 16/21.
5) Not Similar. 28/48 and 42/36 do not reduce to the same value.
6)No. The angles are not the same.
Step-by-step explanation:
Ask yourself, is it proportional? Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion.
In other words, ifthe corresponding sides reduce down to the same value, they are similar.
Can I have some help?
Answers
Answer:
(4,5) , (5,8)
Step-by-step explanation:
What is the ratio of drink mix to water?
Answers
Answer:
3:8
Explanation:
Answer:
3:8
Step-by-step explanation:
You just flip the numbers around because it just flipped the question.
Will give brainless to whoever gets this right
Answers
Lin rode her bike 2 miles in 8 minutes. She rode at a constant speed. Complete the table to show the time it took her to travel different distance at this speed. (Please take a picture of the work if its paper/device)
Answers
Answer:
just keep adding 4. for 3 miles, 12 minutes, 4 miles, 16 minutes, etc.
Step-by-step explanation:
help me i will give you 18 points of you answer this one
Answers
Answer:
(4,1)
Step-by-step explanation:
y=4
x=1
this is not my cup of tea but I'm pretty sure this is the answer
Answer:
4
Step-by-step explanation:
Do this the same way as the last time you had this type of problem.
The indicated point is (1, 4)
constant of proportionality
y/k = 4/1
y/x = 4
I really need help!!
Sam has 6x + 8 dollars saved. Teresa has saved 14x + 32 dollars. Together they have $220 saved. How much money have they each saved individually?
Answers
Step-by-step explanation:
given,
dollars saved by Sam = 6x + 8
dollars saved by Teresa = 14x + 32
total money = $220
a/q
money saved by,
sam + Teresa = $220
so,
6x + 8 + 14x + 32 = 220
20x + 40 = 220
20x = 220 - 40 = 180
x = 180/20 = 9
x = 9
now,
money saved by,
Sam = 6x + 8 = 6(9) + 8 = $62
Teresa = 14x + 32 = 14(9) + 32 = $158
therefore,
money individually saved by Sam is $62 and by Teresa $158.
HOPE THIS ANSWER HELPS YOU DEAR! TAKE CARE
URGENT
H is proportional to the square of J. When H = 36, J = 3. Find the value of H when J = 8
Answers
Answer:96
Step-by-step explanation:
H=Jx12. So, multiply 8 by 12 to get 96
Four friends purchase a pineapple for $2.89 and 18.4 pounds of peaches. The peaches cost $1.75 per pound. The friends share the total cost equally.
What amount does each person pay?
Answers
Answer: $3.00
Step-by-step explanation:
Answer:
$8.77
Step-by-step explanation:
18.4 pounds x $1.75 = $32.2
After that we add the pineapple cost
$32.2 + $2.89 = $35.09
So now we for the 4 friends
$35.09/4 = $8.77
Is -0.25 repeating, rational or irrational?
Answers
Answer:
its a rational number
Step-by-step explanation:
since its not repeating and its not an unsolvable root or pie
Linda is comparing the density of materials. The redwood is 2x10^ -2 pounds per cubic unit. The stainless steel is 3 x 10^ -3
Answers
Answer:
Step-by-step explanation:
5x10
4,430 divided by 6= tysm whoever answer this question
Answers
Answer:
Step-by-step explanation:
4,430 divided by 6= 738.333333333
Answer:
738.333... = 738 1/3
Step-by-step explanation:
4,430 ÷ 6 = 738.333... = 738 1/3
Please help out!! Im giving 25 pts!!
Answers
Answer:
10,11,aquarium
Step-by-step explanation:
HELP PLEASE I CAN'T UNDERSTAND I WILL GIVE YOU BRAINLIEST PLEASE HELP
Answers
Answer:
a. 1/27 b.3 1/2
Step-by-step explanation:
a.1/3*1/3*1/3=1/(3^3)=1/27
b.2 1/3*1 1/2*1= 3 1/2
Answer:
a.1/3*1/3*1/3=1/(3^3)=1/27b.2 1/3*1 1/2*1= 3 1/2Step-by-step explanation:
a stack of 500 pieces of paper is 1.875 inches tall derion guesses that each piece of paper is 0.015 inches thick. explain how you know that derions answer is not correct.
compute the thickness of each piece of paper. show your reasoning
Answers
Answer:
Derions answer is not correct becuase 500 x 0.015=7.5 inches. If he got this as an answer that would meen that the stack of paper is 7.5 inches tall, which is not correct.
If we divide 1.875 by 500 we get 0.00375 which is the thickness of each sheet of paper.
Identify which equations have one solution, infinitely many solutions, or no solution.
Answers
Here ya go, I did the activity
Answer:
Olananio
Step-by-step explanation:
Find the slope of the line.
Answers
Click the expression that is the additive inverse of 5/16.
A.) -5/16
B.) -(-5/16
C.) 16/5
D.) -16/5
Answers
What is 4 3/10 plus (-6.2) in decimal form
Answers
Answer:
Step-by-step explanation:
First change 4 3/10 to 4.3. Then you change 4.3 + -6.2 to 4.3 - 6.2.
Then you do 4.3 - 6.2 and you should get - 1.9.
Answer:
The answer is (-1.9)
Step-by-step explanation:
4 3/10 = 4 × 10 + 3/10 = 43/10 = 4.3
Now,
4.3 - 6.2 = -1.9
Thus, The answer is (-1.9)
-TheUnknownScientist 72
Usually, when Landon makes bird food, he mixes 9 cups of seed with 6 tablespoons of maple syrup. However, today, he is short on ingredients. Describe a recipe that would make a SMALLER batch of bird food but still taste exactly the same.
Answers
Answer:
3 cups of seeds and 2 tablespoons of maple syrup
-OR-
6 cups of seeds and 4 tablespoons of maple syrup
Step-by-step explanation:
As this is a ratio of 9:6: "for every 9 cups of seeds, there is 6 tablespoons of maple syrup"
The original ratio is 3:2 "for every 3 cups of seeds, there is 2 tablespoons of maple syrup"
Using this ratio, we can infer that 3:2 or 6:4 would be a simpler answer for this problem. If there is doubt, it would be better to use 3:2 as it is the smallest ratio.
6 seed and 4 maple
pls make me brainliest
