Answers
Answer:
B and D
Step-by-step explanation:
B -> -1.4z multipled by 40 is - 56z, 0.7 multipled by 40 is 28, thus giving us - 56z + 28.
D -> When we expand (8z - 4)(-7) we will get -56z + 28 as 8z multipled by - 7 is - 56z (remember positive times negative equals negative) and - 4 multipled by - 7 is 28 (negative times negative equals positive)
Related Questions
In a school election, 3/4 of the students vote. There are 1484 votes. Find the number of students.
There are a total of
students.
Answers
Answer: 1979 students.
Step-by-step explanation:
We are told that 3/4 (75% or 0.75) of total students voted, which amounted to 1484 votes.
Letting X be the total number of students, we can write that as:
(0.75)X = 1484
X = 1978.67 total students
Now I know one classmate who wasn't all there, but I suspect even he isn't counted as 0.67 of a student. So round to the nearest whole number, 1979 students.
will mark brainleist
Answers
Answer:
x=5.834729, rounded down to 5.83
Please help me asap
ty :)
Answers
Answer:
y = -3x - 3
Step-by-step explanation:
Subtract 3x both sides
y = -3 - 3x
y = -3x + (-3)
Can i get some help ?:
Answers
Answer:
7 + 3² - 2.5 / 4 - 1.2 > ( 3/4 + 1/8 ) ÷ 1/8 - 2²
Step-by-step explanation:
7 + 3² - 2.5 / 4 - 1.2 = 4.82142857
( 3/4 + 1/8 ) ÷ 1/8 - 2² = 3
Which means :
7 + 3² - 2.5 / 4 - 1.2 > ( 3/4 + 1/8 ) ÷ 1/8 - 2²
Which is the sum of two or more different monomials?
Answers
Answer: Polynomial
Step-by-step explanation:
please help!! i don’t know how to do this please help asap.
Answers
A tortoise moves at a speed of 22 inches in 7 seconds. What is its average speed in feet per hour?
Answers
The average speed in feet per hour will be;
⇒ 942.85 feet per hour
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Distance = 22 inches
Time = 7 seconds
Now,
Since, A tortoise moves at a speed of 22 inches in 7 seconds.
Hence, Distance = 22/12 feet
And, Time = 7 / 3600
Thus, The average speed = (22/12) / (7/3600)
= 22 × 3600 / 12 × 7
= 942.85 feet per hour
Therefore, The average speed in feet per hour will be;
⇒ 942.85 feet per hour
Learn more about the mathematical expression visit:
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f(1)=−6
f(2)=−4
f(n)=f(n−2)+f(n−1)
f(3)=f(3)=f, left parenthesis, 3, right parenthesis, equals
HURRY!!!!
Answers
f(3) = f(1) + f(2)
then substitute using the values given so
f(3) = -6 + -4
so f(3) = -10
the value of function at n = 3 is f( 3 ) is - 10.
To find the value of f( 3 ), we can use the given recursive formula:
f(n) = f( n - 2 ) + f( n - 1 )
We already have the values of f(1) and f(2):
f(1) = - 6
f(2) = - 4
Now, let's apply the recursive formula to find f(3):
f(3) = f( 3 - 2 ) + f( 3 - 1 )
f(3) = f(1) + f(2)
f(3) = - 6 + (- 4)
f(3) = - 10
So, the value of f(3) is - 10.
Learn more about recursive formula here
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The table shows the ratio between the number of books ordered and their cost: Number of Books Cost (dollars) 7 14 8 16 9 18 Find equivalent ratios when the number of books ordered is 1, 2, and 3. Write them as ordered pairs in the form (x-coordinate, y-coordinate). Starting from the origin, explain how to plot the three equivalent ratios on a coordinate grid. (10 points)
Answers
14/7 = 2
16/8 = 2
18/9 = 2
This shows the cost of one book is $2
Multiply the number of books bought by 2 to get the cost:
1 x 2 = 2
2 x 2 = 4
3 x 2 = 6
Answer: (1,2) (2,4) (3,6)
Starting from the origin (0,0) for every 1 book bought ( x axis) move 2 more up than the previous total (y axis)
Using the 3 ordered pairs in the answer at x value 1 place a dot at y 2, then a dot at x2,y4 and again at x3,y6
Answer:
I'm doing the same test right now the ratios are 1 to 2 but the answers would be 1 to 2, 2 to 4, and 3 to 6 . you have to double the numbers that are shown
Step-by-step explanation:
I didn't copy the guy above it's litterallty simple multiplication hope my answer helped
What is an equation of the line that passes through the points (0, -4) and (-4, 6)?
Answers
I got this answer by first using the slope formula, which would result into [tex] \frac{0 - 4}{6 - 0} \\ [/tex]for which the answer would be - ⅔ Then, the y-intercept could be found easily, since you already have it., which is (0,4). Since the format for all linear equations are y=mx+b , in which b means the y-intercept and m means the slope. So then, if you substitute - ⅔ for m and 4 for b , you would get
[tex]y = - \frac{2}{3} x + 4 \\ [/tex]
Please Help Question in picture
Answers
Answer:
20
Step-by-step explanation:
Distance formula =
x={sq rt} of (x2-x1)^2 + (y2-y1)^2
{sq rt} (-7-5)^2+ (-7-9)^2 = {sq rt} (-12)^2 + (-16)^2 = {sq rt}
144+256= {sq rt} 400
{sq rt} 400 = 20
(I think its been a hot sec since I did distance formula stuff)
Answer:
20
Step-by-step explanation:
You can use the distance formula
sqrt(((5--7)^2)+((9--7)^2)) = 20
what is the answer, i need help
Answers
Answer: C 1/2mL LMN= mL LMO
Step-by-step explanation: because 2/76 is 38 C is the right answer
if it takes 10 people working at the same rate 5 hours to pick 300 apples, how many hours would it take 1 person to pick 300 apples
Answers
Answer:
50 hours
Step-by-step explanation:
10 times 5 is 50 so the answer is 50 hours
What is an equation of a line that passes through the point
(0,3) and is perpendicular to the line whose equation is
y = 2x - 1?
-
Answers
Answer: y = -(1/2)x + 3
Step-by-step explanation:
y = 2x - 1
This is in the format of y=mx + b, where m is the slope and b is the y-intercept (the value of y when x=0).
Perpendicular lines have a slope that is the negative inverse of the reference line. The slope of this reference line is 2, so the slope of a perpendicular kline will be -(1/2).
This yields the equation y = -(1/2)x + b
To find the value of b, we can use the given point, (0,3) and use these values of x and y to solve for b:
y = -(1/2)x + b
3 = -(1/2)(0) + b
b = 3
The equation of a line perpendicular to y = 2x - 1 and goes through point (0,3) is:
y = -(1/2)x + 3
please help meeeeeeeeeeeeeeeeeeee
ty
Answers
Answer:
A
Step-by-step explanation:
hope this helped
Answer:
4y = -3x - 8
Step-by-step explanation:
Alexis and her siblings buy their mom a bottle of her favorite perfume, Seabreeze, as a birthday gift. The bottle cost $50.84 and contains 4 ounces of perfume how much does the perfume cost per ounce
Answers
Answer: 12.71
Step-by-step explanation: 50.84 divided by 4 = 12.71
An artificial soccer pitch is 91 meters long and 43 meters wide. If the cost of the pitch is AED 20 per square meter. What is the cost of installing the pitch????
Answers
The Cost of installing the artificial soccer pitch is $5360
A rectangle is a quadrilateral (has four sides and four angles) in which opposite sides are parallel and equal.
The soccer pitch us rectangle in shape. Hence:
Perimeter of soccer pitch = 2(length + width) = 2(91 + 43) = 268 meters
Cost of installing the pitch = $20 per meter * 268 meters = $5360
The Cost of installing the artificial soccer pitch is $5360
Find out more on perimeter at: https://brainly.com/question/16596982
Helpppp, I don’t understand
Answers
Answer:
13°
Step-by-step explanation:
Since these are complementary angles, we can add them together, set it equal to 90, and solve for x:
[Equation] (-6x + 53)° + (-9x + 22)° = 90°
[Distribute] -6x° + 53° + -9x° + 22° = 90°
[Combine like terms] 15x° + 75 = 90°
[Subtract 75 from both sides] 15x° = 15
[Divide both sides by 15] x = 1°
Then, plug-in our x for angle ADC:
[Given] (-9x + 22)°
[Distribute] -9x° + 22°
[Subsititue / plug-in] -9(1)° + 22°
[Multiply] -9° + 22°
[Combine like terms] 13°
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
help me with this no links
Answers
Answer:
6 maybe I'm not sure jkeneekenene
Answer:
3x
Step-by-step explanation:
A rectangle is similar to a square, in the sense that opposite sides will always be the same. Because we are given the side of the length is 3x-3, this means that the other length will too be 3x-3. Now, we may add these:
(3x-3)+(3x-3)=6x-6
And because we are given our perimiter, simply subtract the lengths we do know:
(12x+6)-(6x-6)=6x
This is the perimetor we have left in our shape. Because we again know that opposing sides are the same length, simply dividing our answer by two will give us the length we need:
6x/2=3x
Based on this, our length of the indicated side is 3x!
Hope this helped!
[tex] \frac{5}{5x - 7} = 10[/tex]
solve the equation.
Answers
Answer:
x=1.5
Step-by-step explanation:
5=10(5x-7)0.5=5x-77.5=5xx=1.5what is 13 divided by 4732
Answers
0.00274725….
Hope this helps!
Answer:
Step-by-step explanation:
the answer is 13
Ayuda por favor, no entiendo
Answers
4^3*4^5*4=4^9 D
(3^3)^2=3^6 C
(a^3)^4*(a^2)^7=a^26 A
(2*3)^2=6^2=36 A
What is x? Show your work.
Answers
Answer: x=2
Step-by-step explanation: 28/4-5= 2
What is the value of x in the equation 8x – 2y = 48, when y = 4?
Answers
Answer:
x = 7
Step-by-step explanation:
Substitute y = 4 into the equation and solve for x
8x - 2(4) = 48
8x - 8 = 48 ( add 8 to both sides )
8x = 56 ( divide both sides by 8 )
x = 7
Answer:
x = 7
Step-by-step explanation:
8x - 2y = 48
y = 4
First, let's substitute y for it's actual value as we know it.
8x - 8 = 48
Next, add 8 on both sides. (When doing these sort of questions you must do the inverse.)
8x = 56
Divide both sides by 8 to get x.
x = 7
Hope this helps and I hope you have a good day!:)
please help
thank you!
Answers
You can see both of the arrows on the y axis going in the same direction.
Convert 6432 Decimal to Binary Number system ?
• Kindly don't spam !!
Answers
Answer:
6432)10 = (1100100100000)2
Step-by-step explanation:
Step 1: Divide (6432)10 successively by 2 until the quotient is 0:
6432/2 = 3216, remainder is 0
3216/2 = 1608, remainder is 0
1608/2 = 804, remainder is 0
804/2 = 402, remainder is 0
402/2 = 201, remainder is 0
201/2 = 100, remainder is 1
100/2 = 50, remainder is 0
50/2 = 25, remainder is 0
25/2 = 12, remainder is 1
12/2 = 6, remainder is 0
6/2 = 3, remainder is 0
3/2 = 1, remainder is 1
1/2 = 0, remainder is 1
Step 2: Read from the bottom (MSB) to top (LSB) as 1100100100000. This is the binary equivalent of decimal number 6432 (Answer).
Hopes that it will help u...☺
[tex]\huge \bf༆ Answer ༄[/tex]
The method to convert the number from Decimal to binary number system is simple ~
Divide the number continuously until it become 0 and write all the remainders from bottom to top.Now let's solve the given question ~
[tex]\textsf{6432 ÷ 2 = 3216 , r = 0} [/tex][tex]\textsf{3216 ÷ 2 = 1608 , r = 0} [/tex][tex]\textsf{1608 ÷ 2 = 804 , r = 0} [/tex][tex]\textsf{804 ÷ 2 = 402 , r = 0} [/tex][tex]\textsf{402 ÷ 2 = 201 , r = 0} [/tex][tex]\textsf{201 ÷ 2 = 100 , r = 1 } [/tex][tex]\textsf{100 ÷ 2 = 50 , r = 0} [/tex][tex]\textsf{50 ÷ 2 = 25 , r = 0} [/tex][tex]\textsf{25 ÷ 2 = 12 , r = 1} [/tex] [tex]\textsf{12 ÷ 2 = 6 , r = 0} [/tex][tex]\textsf{6 ÷ 2 = 3 , r = 0} [/tex][tex]\textsf{3 ÷ 2 = 1 , r = 1} [/tex][tex]\textsf{1 ÷ 2 = 0 , r = 1 } [/tex]Now, write the numbers from bottom to top ~
[tex] \sf{1100100100000}[/tex]
I hope it helps ~
Solve the compound inequality and graph the solutions.
-10<2x – 10 <30
The solutions to the compound inequality are
Answers
Answer:
0 ≤ x ≤ 20.
Step-by-step explanation:
-10≤2x – 10 ≤30
2x - 10 ≤ 30
2x ≤ 40
x ≤ 20.
2x - 10 ≥ -10
2x ≥ 0
x ≥ 0.
For compund inequalities you will have to separate both sides of the inequality into different equations so you can later plug it in.
For Example:
-10 ≤2x-10 Would be 0 ≤x
Add 10 on both sides, end up with 0≤2x then divide by 2 on both sides and end up with 0≤x
2x-10 ≤30 Would be x ≤20
Add 10 on both sides end up with 2x≤40 divide by 2 on both sides and end up with x≤20
So the answer would be 0 ≤ x ≤ 20
A business owner is comparing the cost of buying natural gas from two different companies.
• Company A charges a $6 fee plus $1.25 per therm (unit of heat).
• Company B charges a $9 fee plus $0.75 per therm (unit of heat).
For what number of therms will the cost be the same at both companies?
13.5 therms
9 therms
6 therms
12.75 therms
Answers
Answer: C. 6 therms
Step-by-step explanation:
6 + 1.25(6) = $13.50
9 + 0.75(6) = $13.50
Correct me if I am incorrect.
Helppp pleaseeee !!!
Answers
Answer:
Solution is (x+7)(x+8)
Step-by-step explanation:
1) Find what 2 numbers multiply to 56 (c value) and add to 15 (b value)
2) (x+7)(x+8)
I personally was taught this method and am unfamiliar with with the method shown on the worksheet. If my way is unclear, please feel free to ask any more questions you have.
504300 in standard form
Answers
explanation: