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
how can you represent rational numbers on a number line, as decimals, and in real-world situations?
Answers
Step-by-step explanation:
very good question let's think of a satellite can see if there is a hurricane and do math and use rational numbers all the time the world is made out of math
If you had taken the PSAT test can you tell me if it is hard, what topic is on it (especially math) and what happens basically?
I got an email saying it was for 8/9 grade and I'm in 8th. It is free for me and I'm wondering what I have to do. Do I need to make an account on psat.org or will my teacher send me a link to the test?
Answers
Answer:
Its relly hard trust me!
Step-by-step explanation:
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
Drag each bar to the correct location on the graph. Each bar can be used more than once. Not all bars will be used.
Ella surveyed a group of boys in her grade to find their heights in inches. The heights are below.
have a grate day and thx for helping
67, 63, 69, 72, 77, 74, 62, 73, 64, 71, 78, 67, 61, 74, 79, 57, 66, 63, 62, 71 ,73, 68, 64, 67, 56, 76, 62, 74
Create a histogram that correctly represents the data.
Reset Next
Answers
Answer:
Here is what I got...
Step-by-step explanation:
Which value is FURTHEST from 0 on the number line?
20
-21
|20.5|
|-21.5|
Answers
|-21.5|
it doesn't matter which direction because its just furthest from 0 so you just need to find the highest number and you can ignore any negative signs
how do you find the slope of a line on graph
Answers
Answer:
look at the picture .......................
Answer:
y2-y1/x2-x1
Step-by-step explanation:
first step is to get to pints on the graph
for example
(2,3) and (4,6)
From these points we will plug them into the formula as such.
6-3 divided by 4-2
subtracting first we get
3 divided by 2
In a fraction this will be your answer. Just use the formula.
pls help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Can like someone help me with O.o.O (order of operations)
Show your work please...thats why I provided a ton of space.
Answers
Answer:
183
Step-by-step explanation:
168+2^3+3^3-20=
Exponents
168+8+27-20
Addition
203-20
Subtraction
183
183 is the answer.
Answer:
10
Step-by-step explanation:
Using the process PEMDAS I got the answer 10.
168÷2^3+3^3-20
There are no parentheses so you solve the exponents first.
168÷8+9-20
Next, we do not multiply which makes division our second step.
This gives us 21+9-20.
Now we add 21+9 which gives us the sum of 30.
30-20 is equal to 10.
This is how I got my answer and I really hope this helps you
Find the greatest number such that x172y is divisible by 45
Answers
Answer:
45
Step-by-step explanation:
extra points and brainllyest.
Solve ten and one seventh plus two and five sevenths.
eight and twelve forty ninths
eight and six forty ninths
twelve and four sevenths
twelve and six sevenths
Answers
Answer:
12 and 6 7ths
Step-by-step explanation:
Add numbers and add fractions (7ths)
Answer:
90/7
404/49
398/49
88/7
90/7
How do you write (4)(25)-300 as an addition equation
Answers
(4)(25) - 300 can be written as an addition equation: 100 + (-300).
What is an equation?An equation is a pair of algebraic equations with the equal sign (=) in the middle and the same value.
Given:
An equation is (4)(25)-300.
To write (4)(25)-300 as an addition equation,
we can break it down into two separate addition equations as follows:
(4)(25) - 300 = (4)(25) + (-300)
To solve this further,
substitute the value 25 x 4 = 100 to the above equation, we get,
= 100 + (-300)
Therefore, the equation in the required form is 100 + (-300).
To learn more about the equation;
https://brainly.com/question/12788590
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pllz answer Masterson Wood Products pays Patricia Griffin a $640 monthly salary plus a 11% commission on merchandise she sells each month. Assume Patricia's sales were $72,900 for last month.
Answers
Answer:
$8659
Step-by-step explanation:
Patricia's sales = $ 72,900
Her commission = 11% of $72,900
= 11/100 * 72,900 [ % means out of 100 and of means to multiply ]
= 11 * 729
= $ 8019
Her monthly salary = $640
Her monthly salary along with commission = $640 + $8019
= $8659
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807
Answer:
1307 is the commission plus the monthly salary so it would be
$640+$1307=2247
Step-by-step explanation:
Answer is $2247
hi can you plz help will mark brainlest
Answers
Step-by-step explanation:
In pea plants, the gene for the color of the seed has two alleles. In the following Punnett square shown below, the dominant allele (Y) represents yellow and the recessive allele (y) represents green.
Based on the Punnett square, what percentage of offspring would be expected to have green seeds?
Screenshot below if u don't understand and the diagram :)
Answers
Chicago, Illinois, has an elevation of 600 feet above sea level (zero feet). The elevation of Desert Shores, California, is 800 feet less than the elevation of Chicago.
Which statement is true about Desert Shores?
the elevation is -200 feet
the elevation is 200 feet
the elevation is at 1400 feet
the elevation is at -1400 feet
Answers
Answer:
The elevation is -200 feet.
Step-by-step explanation:
600 - 800 = -200
how can you find the product of positive and negative decimals
Answers
(I have attached an example for reference)
1) Product means multiply, so we will multiply the decimal numbers.
2) First multiply both the numbers just the way you multiply two whole numbers.
3) note that WHILE multiplying you DON'T put the decimal point. Put the decimal point once you get your FINAL answer.
4) Once multiplied, count the total number of places after the decimal in both the numbers which were given. i.e, in the example it's 2 decimal places, one decimal place in 24.5 and one in 3.2, which means the total decimal places here are two.
5) now in your answer, start counting the decimal places from the right side of the number. For example in 7840, we start counting two decimal places from the right side of it and stop at 4 and put a decimal point there. This way we get 78•40.
Hope that helps...
Answer:
Step-by-step explanation:
Watch the video on the picture below
Hope it helps
#LetsStudy
Does a proportional relationship occur for addition and subtraction or only for multiplication and division?
Answers
Answer:
I am pretty sure it is with all of them
Step-by-step explanation:
What is the |-9|? Type your answer as a single integer only.
Answers
9, its 9, trust me, its 9.
Answer:
9
Step-by-step explanation:
The area of the triangle is less than 18 square inches. Select an inequality that represents a
Answers
Answer:
(1/2)(6)(a) < 18
Step-by-step explanation:
We know the formula for the area of a triangle is 1/2 b x h
The base is 6in and the height is a, so the equation is 1/2 6 x a.
The area is less than 18 sq in, so 1/2 x 6 x a < 18
Now, let's solve the inequality.
1/2 6 x a < 18
3 x a < 18
a < 6
Hope this helps :)
How do I do this pls help
Answers
Answer:
Might be wrong, but, Stephan bought the bike and helmet for 115.2$
Step-by-step explanation:
(might be wrong)
$307 and 2 cent i think
evaluate 1/4 (15 + h) - g , when h=5 and g= 1
Answers
Answer:
4
Step-by-step explanation:
1/4(15+5)-1
1/4 x 20-1
1/4 x 20 = 5
5-1 = 4
Answer:
4
Step-by-step explanation:
Graded Assignment Unit Test, Part 2:
Unit 5 Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.
Be sure to include your work and WRITTEN Explanation
Juan wants to buy a video game for $63. He saves $12 every Friday.
How many Fridays will it take for Juan to save up enough money for the video game?
Answer: Show your work and explain!
Answers
Answer:
Step-by-step explanation:
if you divide the 63 by the 12 it would be 5.25 so it would take 6 fridays to save up!
1) divide 63 by 12 = 5.25
Answer :6
Solve for M, please
2m - 6 ≥ - 2
Easy 61 points
Answers
[tex]\\ \sf\longmapsto 2m-6\geqslant -2[/tex]
[tex]\\ \sf\longmapsto 2m\geqslant 4[/tex]
[tex]\\ \sf\longmapsto m\geqslant 4/2[/tex]
[tex]\\ \sf\longmapsto m\geqslant 2[/tex]
A hot-air balloon is 1200 feet off the ground and its altitude is slowly changing at a constant rate of −712 feet per second.
How many seconds, s, will it take for the balloon to drop to below 310 feet?
Answers
Explanation:
1200-712= 488
488-712= -224
I NEED HELP TMR IS THE LAST DAY TO TURN THIS IN
Answers
Answer:
9. the yellow bag
Step-by-step explanation:
Green bag=2.59/7=0.37Blue bag=4.56/12=0.38Yellow bag=6.30/18=0.350.35<0.37<0.38
I am only gonna help with this one cus I also have homework~sorry!!
I know this because for the 7 ounce packet it is $0.37 per ounce, for the 12 ounce packet it is $0.38 per ounce and for the 18 ounce packet it is $0.35 ounce a packet. So the lowest is the 18 ounce packet.
I hope this helped.
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
so this is for khan academy and I would really like some help with it :)
Answers
y/x=2
Step-by-step explanation:
Because y=2 and x=4, we would do 4 divided by 2 (2/4=y/x) To get 2
A dugout needs to reach at least 72 feet below ground level. This means it needs to be more than 4 1/2 times its current depth. This depth is represented by the inequality 4 1/2 d < -72, where d is the current depth of the dugout.
The current depth of the dugout is ________ area feet below ground level.
Greater than 16
Fewer than 16
Greater than -16
Fewer than -16
Answers
Answer:
The answer i got is this -16 2/3, which i think is greater than -16
The ongoing profundity of the hole is less than the negative region feet subterranean level. Then the right choice is D.
What is inequality?Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.
A hole needs to arrive at no less than 72 feet subterranean level. This implies it should be multiple 1/2 times its ongoing profundity. This profundity is addressed by the imbalance 4 ¹/₂ d < - 72, where d is the ongoing profundity of the burrow.
4 ¹/₂ d < - 72
Simplify the inequality, then we have
4 ¹/₂ d < - 72
4.5d < - 72
d < - 72 / 4.5
d < - 16
The ongoing profundity of the hole is less than the negative region feet subterranean level. Then the right choice is D.
More about the inequality link is given below.
https://brainly.com/question/19491153
#SPJ2
Help with Questions 4 and 5!
Will mark Brainliest for the best and accurate answers!
Answers
question 4 is A
question 5 is 43.6
question 5 showing work
how I would figure it out is 151-20 =131
then I would divide it by 3 for each day
_
131÷3=43.6
Answer:
131÷3=43.6
Step-by-step explanation:
What is the slope of the line in the graph?
Answers
Answer:
-1 is the slope
Step-by-step explanation:
Take 2 points, you go down 2 and right 2 to get to the next point, so the slope is -2/2 = -1
Answer:-1
Step-by-step explanation:
Look at the two points. Now, look at how the line traveled to get from one point to the other, down two and over two, or -2/2. To simplify, divide by two, which gives you -1/1 or -1