Answer:
-7 + 4 = -3
Step-by-step explanation:
So you start at -7 and if you add a positive number to a negative number you basically subtract from the negative number, so you would do -7 + 4 which equals -3
If 4700 bricks each of size 25 cm x 16 cm x 10 cm are required to construct a wall
20 m long and 20 cm wide containing two windows of size 2 m X 1.5 m each, find
the height of the wall.
Answer:
970 cm
Step-by-step explanation:
Given that:
Size of brick :
25cm × 16cm × 10cm
Number of bricks = 4700
Dimension of wall = 20 m long × 20 cm wide
Let the height = h
Hence, dimension of wall (length and height)
2000 cm × h
Dimension of window = 2m × 1.5m = 200cm × 150cm
Number of windows = 2
Total area covered by windows = 2 * (L * B)
= 2(200 * 150) = 60,000cm
Brick = (25 * 16) * 4700 = 1, 880, 000 cm ( length and height)
Wall = 2000 * height - 60,000 = 1880000
2000height - 60,000 = 1880000
2000height = 1880000 + 60,000
2000height = 1940000
Height = 1940000 / 2000
Height of wall = 970 cm
A store had a grand opening sale. During the sale, each person entering the store received
a coupon for 10% off their entire purchase. The table lists the number of people who received
a coupon.
If B is the midpoint of AC. AB = 4v and AC = 5v + 24. what is BC?
Answer:
v+24
Step-by-step explanation:
I first drew a line with A in one side and C in the other side. Then, I put B in the middle, as it is the midpoint. Under AB, I put 4v, and under AC, I put 5v+24. To get BC, you must subtract 5v+24 and 4v. I did 5v+24-4v. All I really had to do was subtract 4v from 5v which gave me v, since I can only subtract like-term numbers. Anyway, after that, I got v+24. Hope this helped!
On a coordinate plane, a line goes through points (0, 1) and (3, negative 1). Consider the graph of the line. Using the rise/run counting method, the slope of the line is .
Answer: The slope of the line is -2/3.
Step-by-step explanation:
How I think of it is that on the y plane on a graph, going from positive 1 to negative 1 you need to move down 2 places and thats the "rise" part of rise over run eventhough you moved down. Then on the x plane, going from 0 to 3 you need to move 3 spaces to the right on the graph and thats the "run" part of rise over run because you can either move left or right. Rise over run can also be thought of as change in y over change in x which means that since i went down 2 places on the y, the change in y was 2 and since we moved 3 places over on the x plane the change in x whould be 3. Since we move down and then to the right on the graph, the line being created would be negative, so you final answer for the slope is -2/3!
I hope this helps :)
Answer:
-2/3
Step-by-step explanation:
Hope this helps!
If the circumference of a basketball is 29.5 inches, how many centimeters is the circumferenceof a basketball? Round your answer to the nearest whole centimeter.
Answer:
75 cm
Step-by-step explanation:
Every inch is 2.54 cm, so 29.5 in=74.93 cm. 74.93 rounded to the nearest whole is 75cm.
Answer:
75 cm
Step-by-step explanation:
Which statements correctly compare the sum and product? Check all that apply. 1. Both functions have a constant rate of change. 2. The sum is linear and the product is quadratic. 3. The x-intercepts are the same. 4. The sum has one y-intercept and the product has two x-intercepts. 5. Both functions decrease for x > 2
Answer:
Step-by-step explanation:
B) the sum is linear and the product is quadratic
D) the sum has one y-intercept and the product has two x-intercepts
The sum is linear and the product is quadratic and The sum has one y-intercept and the product has two x-intercepts are two statements which compare the sum and product
What is Equation?Two or more expressions with an Equal sign is called as Equation.
We need to find the statements which correctly compare the sum and product
The given statements are
1. Both functions have a constant rate of change.
2. The sum is linear and the product is quadratic.
3. The x-intercepts are the same.
4. The sum has one y-intercept and the product has two x-intercepts.
5. Both functions decrease for x > 2
A linear function simply means a function that represents a straight line on the coordinate plane.
In this case, the sum is linear and the product is quadratic while the sum has one y-intercept and the product has two x-intercepts.
Hence, the sum is linear and the product is quadratic and The sum has one y-intercept and the product has two x-intercepts are two statements which compare the sum and product
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A book has 89 pages, but the page numbers are printed incorrectly. Every third page number has been omitted, so that the pages are numbered 1,2,4,5,7,8,... and so on. What is the number on the last printed page?
Answer:
89
Step-by-step explanation:
There are only 30 pages but last page number is 89.
The last page of the book would be with the number 89. For details, check the calculations below.
Number SystemThe number system is characterized as the arrangement or sequence in which the numbers are arranged in a mathematical order beginning from 0 in whole numbers.
In the given situation,
We know that,
Total pages available in the book = 30
And every third page is omitted from the book due to misprinting of the page numbers.
If we divided 90/3 = 30 pages are there. Hence, the last page would be 89 itself.
Thus, the above response is correct.
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According to a November 2019 report by CNN, the startup company Heliogen has devised a high-heat solar oven that can be used to create concrete and steel without the use of fossil fuels. Currently, the creation of these materials produces 7% of the world's carbon emissions from fossil fuels. If the world's total carbon emissions in 2018 was 37.1 billion tons, how much of that carbon came from the creation of these building materials? Give your answer in billions of tons. Round to two decimal places.
Answer:
37,1bilion tons*0,07=2,60 bilion tons (2d.p.)
Step-by-step explanation:
what is the product?
x^2 -16 • x^3 - 2x^2 + x———— ——————–—
2x +8 x^2 +3x -4
Answer:
A) x(x-4)(x-1)/2(x+4)
Step-by-step explanation:
(x²-16)/(2x+8) * (x³-2x²+x)/(x²+3x-4)
factor
(x+4)(x-4)/2(x+4) * x(x-1)(x-1)/(x+4)(x-1)
You can take out both (x+4) from the first side, and both (x-1) on the second side. Then you’re left with:
(x-4)/2 * x(x-1)/(x+4)
which equal
x(x-4)(x-1)/2(x+4)
which is A.
The common fraction for 4.759
Delta pays Pete Rose $280 per day to work in the maintenance department at the airport. Pete became ill on Monday and went home
after of a day. What did he earn on Monday? Assume no work, no pay. (Do not round intermediate calculation.)
Answer:
5x280=1400
Step-by-step explanation:
$1400
if he works on the weekends then add 580
s0 $1980
the product of three integers is -600 if two of them are -15 and 10 ,then find the third integer
Answer:
4
Step-by-step explanation:
-15 times 10 equals -150
-600 divided by -150 equals 4
Answer is 4
hope this helps you :)
need help asap!!!! plsss i have 5min
Answer:
30
Step-by-step explanation:
x=10
x^2+3x-130=0
x=10 or -13
there is no negative angle so the answer is ten
20 = –4t I need the answer asap
Answer:
[tex]t=-5[/tex]
Step-by-step explanation:
Let's solve this equation.
[tex]20=-4t[/tex]
Let's turn it around.
[tex]-4t=20[/tex]
Let's make this into a fraction and divide each side by -4
[tex]\frac{-4t}{-4} =\frac{20}{-4}[/tex]
And the answer is
[tex]t=-5[/tex]
Hope this helps!
Brianna has $75 saved. She works $12 per hour babysitting.
Part 1: Write an expression that represents how much money Brianna will
have total after workingh hours.
Part 2 How much money will she have after babysitting for 6.5 hours?
Answer:
$75 + $12x
$153 if you add the money she already had, $78 if you don't
Step-by-step explanation:
Find an explicit formula for the arithmetic sequence -11, -3,5, 13, ....
b(n) =
Assuming the first term that you listed is the first term of the sequence, the answer should be:
b(n) = -19 +8n
translate into words
5+x
Five added to the number, x.
Step-by-step explanation:
Five represents (5)
added to represents (+)
The number, x. represents (x)
If five less than y is six more than x + 1, then by how
much is x less than y?
Answer:
12 more
Step-by-step explanation:
y-5= 6+ (x+1)
5+6+1=12
x is 12 less than y.
Five less than y is six more than x + 1,
y - 5= 6 + (x + 1)
5 + 6 + 1 = 12.
What are the steps in solving linear equations in one variable?Step 1: Simplify each side, if needed.Step 2: Use Addition/Subtraction Properties to move the variable term to one side and all other terms to the other side.Step 3: Use Multiplication/Division.Step 4: Check your answer.Learn more about linear equations here: https://brainly.com/question/14323743
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Help i dont understand pls help :(
Answer:
It is indefinite. The value of x is not fixed and continuous in this function. It will keep on changing with the change in y ..
Why is√5 irrational?
A.)because it is less than one
B.)because it has no opposite
C.)because all square roots are irrational
D.)because it cannot be expressed as a ratio of integers
Answer: The expression x(x + 1) is even for any integer x (since either x or x + 1 is even). So this says that 5 × even + 1 = even, or odd = even. Since there is no integer that is both even and odd, we have reached a contradiction and √5 is irrational. So the answer would be D.) because it cannot be expressed as a ratio of integers
Which angles are corresponding angles?
Check all that apply.
2
1
4
3
5 6
В
7
D A. 4 and 8
B. 2 and 6
C. 4 and 6
D. 2 and 7
E. 3 and 6
F. 3 and 7
Answer:
E
Step-by-step explanation:
Answer:
The answer is E
Step-by-step explanation:
Hope this answer is helpful...
Hope this answer is helpful...
Hope this answer is helpful... Make me as brainliest....
You are riding a roller coaster, your velocity is 13 feet per second
a rectangular shape waiting room has an area 120ft and a perimeter of 44 ft.what are the dimensions?
Answer: W * L = 120
2W + 2L = 44
2W = 44 - 2L
W = 22 - L
(22-L) * L = 120
22L - L² = 120
L² - 22L = -120
L² - 22L + 121 = 121 - 120
(L - 11)² = 1
L - 11 = ±1
L = 11 ± 1
L = 10 or 12
Dimensions: 10 * 12
Step-by-step explanation: write it on paper
what is 7 1/3 as a improper fraction
Answer:
22/3
Step-by-step explanation:
First, I multiplied 7 and 3 because 7 is the whole number and 3 is the denominator of the fraction.
7*3=21
Then, I added 21 to 1 because 1 is the numerator in the fraction.
21+1=22
Finally, I made it 22/3 because the denominator of the fraction is 3.
So, your final answer is 22/3.
[tex]$7\frac{1}{3}[/tex] as a improper fraction can be written as 22/3.
What is fraction? What are mixed fractions?A fraction is expressed in the form of {x/y}, where {y ≠ 0}. For example, we can write 2.3 in the form of fraction as : 2.3 = 23/10 and, we can write 2.2 in the form of fraction as : 2.2 = 22/10 = 11/5Mixed fractions are of the form : [tex]$x\frac{y}{z}[/tex]We can simplify them as : (z × x + y}/zGiven is to write 7 1/3 as a improper fraction.
An improper fraction is a fraction where the numerator is greater than or equal to the denominator. We can write that for a fraction {x/y} to be improper, the following conditions should be fulfilled -
{x} > {y}
or
{x} ≥ {y}
We can write 7 1/3 as a improper fraction as -
[tex]$7\frac{1}{3}[/tex] = [tex](3\times7+1)/3[/tex] = [tex]$\frac{22}{3}[/tex]
Therefore, [tex]$7\frac{1}{3}[/tex] as a improper fraction can be written as [tex]$\frac{22}{3}[/tex].
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determine any data values that are missing from the table assuming that the data represent a linear function
Answer:
I think D
Step-by-step explanation:
I hope it's right and I hope you mark me brainlist
Answer:
the answer is b. missing x:1 missing y:2
Step-by-step explanation:
what is 48 divide by -6 =
Answer:
-8
Step-by-step explanation:
any number divided by a nega is going to be neg if it is multiplied by two nega's its positive.
Write the polynomial in standard form that represents the perimeter of the quadrilateral
3x - 2
2x
12x+1
5x - 2
The solution is
Answer:
Linear function
Step-by-step explanation:
4
The polynomial in a standard form that represents the perimeter of the quadrilateral is [tex]22x-3[/tex].
Important information:
The side lengths of a quadrilateral are [tex]3x-2,2x,12x+1,5x-2[/tex].We need to find the polynomial in a standard form that represents the perimeter of the quadrilateral.
Standard form of Polynomial:The perimeter of the quadrilateral is the sum of all of its sides.
[tex]\text{Perimeter}=3x-2+2x+12x+1+5x-2[/tex]
[tex]\text{Perimeter}=22x-3[/tex]
Therefore, the polynomial in a standard form that represents the perimeter of the quadrilateral is [tex]22x-3[/tex].
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Does meditation cure insomnia? Researchers randomly divided 400 people into two equal- sized groups. One group meditated daily for 30 minutes, the other group attended a 2-hour information session on insomnia. At the beginning of the study, the average difference between the number of minutes slept between the two groups was about 0. After the study, the average difference was about 32 minutes, and the meditation group had a higher average number of minutes slept. To test whether an average difference of 32 minutes could be attributed to chance, a statistics student decided to conduct a randomization test. She wrote the number of minutes slept by each subject in the study on an index card. She shuffled the cards together very well, and then dealt them into two equal-sized groups. Which of the following best describes the outcome?
Answer:
this is very long be shot question
Step-by-step explanation:
The best outcome will be that the average difference between the two sacks will be about Zero minutes.
Randomization TestAs per the question, at the beginning of the study the average difference was seen as 0 minutes, but after the experiment the average difference was of 32 minutes.
To Cross examine the study result, the researcher recorded the number of minutes slept on an index card and shuffled the cards into two equal parts. There can be three outcomes of this test, these are:
The average difference will be about 0 minutes. The average difference will be more than 32 minutes.The average difference will be about 32 minutes.There is three outcomes because of shuffling of the cards.
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which expression equals
[tex]9 \sqrt[3]{10} [/tex]
Answer:
B on edge
Step-by-step explanation:
5^3sqrt10+4^3sqrt10
7a+1+3=18
Please answer quickly!
Answer:
2
Step-by-step explanation:
So we have the equation:
[tex]7a+1+3=18[/tex]
Add 1 and 3:
[tex]7a+4=18[/tex]
Subtract 4 from both sides:
[tex]7a=14[/tex]
Divide both sides by 7:
[tex]a=2[/tex]
And we're done!