Answer:
distributive property
Step-by-step explanation:
What would you guess the mean of the
numbers
1, 1, 1, 2, 2, 3, 3, 5, 5, 7
will bel?
what is the mean of the numbers
Answer:
3
Step-by-step explanation:
add up all data values to get the sum count the number of values in your data set divide the sum by the count
If (y – 1)^3 = 8, what is the value of (y + 1)^2?
Answer:
16
Step-by-step explanation:
Step 1: Write equation
(y - 1)³ = 8
Step 2: Find y
Cube root both sides: y - 1 = 2
Add 1 to both sides: y = 3
Step 3: Find question
(3 + 1)²
(4)²
16
The siding of a house is 2250 square feet. The siding needs two coats of paint. One quart costs $18 and covers 80 square feet. One gallon costs $29 and covers 320 square feet. What is the minimum cost of the paint needed to complete the job? How much paint is left over?
Answer:
Minimum cost needed = $221
Remaining quart paint = 7/8
Step-by-step explanation:
Let
x = number of 1 gallon paints
y = number of 1 quart paints
1 gallon covers 320 square feet
1 quart covers 80 square feet
Number of gallons paint needed = Total siding of the house / 320 square feet
= 2250 / 320
= 7.0312
Approximately to the nearest whole number
Number of gallons paint needed = 7 gallons
Total siding of the house covered by gallons = 7 gallons × 320 square feet
= 2,240 square feet
Siding of the house remaining = Total siding - Siding covered
= 2,250 - 2,240
= 10 square feet
1 quart covers 80 feet
Therefore, 1 quart will cover the remaining 10 square feet
A. The minimum cost of the paint needed to complete the job
Total cost = (Price of gallons × Quantity of gallons needed) + (price of quart × Quantity of quart needed)
= (29 × 7) + (18 × 1)
= 203 + 18
= $221
Minimum cost needed = $221
B. How much paint is left over
Recall
1 quart covers 80 square feet
And remaining siding to be covered = 10 square feet
That is,
10/80 = 1/8 of a quart paint used
Remaining quart paint = 1 - 1/8
= 7/8 quart paint
Answer:
no
Step-by-step explanation:
no
if m<2=98, m<3=23 and m<8=70, find each measure
Answer:
Step-by-step explanation:
From the picture attached,
There are two parallel lines intersected by three transverse lines.
m∠2 = 98°, m∠3 = 23°, m∠8 = 70°
a). Since ∠1 and ∠2 are linear pairs,
m∠1 + m∠2 = 180°
m∠1 + 98° = 180°
m∠1 = 180 - 98
m∠1 = 82°
b). m∠4 = m∠7 [Corresponding angles]
m∠7 = 180° - (m∠2 + m∠3) [Property of a triangle]
= 180 - (98 + 23)
= 180 - 121
= 59°
m∠4 = m∠7 = 59°
c). m∠5 = 180° - (m∠3 + m∠4)
= 180° - (23° + 59°)
= 180° - 82°
= 98°
d). m∠6 = 180° - (m∠7 + m∠8)
= 180° - (59° + 70°)
= 180 - 129
= 51°
e). m∠7 = 59° [Calculated in part b]
f). m∠9 = 180° - (m∠4 + m∠8) [Property of a triangle]
= 180° - (59 + 70)°
= 180 - 129
= 51°
g). m∠10 = 180° - m∠9
= 180 - 51
= 129°
-2(5x+8)=14+6x in steps 1,2,3,4
x= -1.875 or x= -15/8
Step-by-step explanation:
-2(5x+8)=14+6x
-10x-16=14+6x
-16x-16=14
-16x=30
x= 30÷(-16)
x= -1.875 or -15/8
Solve the following and explain:
2/3(9x-3)=5x+4-x
Answer:
3x(3x+2)
Step-by-step explanation:
1. Simplify: (4x2 - 2x) - (-5x2 - 8x).
Solution:
(4x2 - 2x) - (-5x2 - 8x)
= 4x2 - 2x + 5x2 + 8x.
= 4x2 + 5x2 - 2x + 8x.
= 9x2 + 6x.
= 3x(3x + 2).
Answer: 3x(3x + 2)
explain the difference between an Expression and an Equation.
Answer:
An equation has a set value or a mathematical sentence that contains an = sign. An expression is a math sentence that contains numbers, letters, and symbols( not an = tho) and the value of the variable can change.Equations and expressions are often encountered when understanding mathematical concepts. If compared with language, expressions are like phrases while equations are complete sentences. Expressions have no relations whereas equations reveal relationships. You need to solve equations while expressions can only be evaluated.Step-by-step explanation:
pls give brainliest if i helped:)
The difference between the expression and an equation is explained below:
Difference between the equation and expression:The equation represents the mathematical value while the expression could include the numbers, letters, etc. The expression should be treated as phrases while the equations are considered to be complete sentences. The expression does not show any kind of relations while the equation should show the relationship.
In this way, it should be differentiated.
learn more about an equation here: https://brainly.com/question/14006221
Write an example of a trinomial that cannot be factored.
Answer:
[tex]x^{2} + x + 1[/tex]
Step-by-step explanation:
a trinomial that cannot be factored has no real roots.
here is one:
[tex]x^{2} + x + 1[/tex]
After graphing this trinomial has no intersections points with the x-axis wich means it has no roots
If AB = 2x+3, BC = 3x-5, and AC = 38, what is the value of x?
I need to know that slope and y-intercept, I also need to know what y=_x+_
This is a inverse
Ray buys bottles of water at $2 each and a large pizza at $13. The total cost was $21. what equation can be used to find the number of water bottles purchased A 13+21x=2 b 13x+2=21 c 21+2x=13 or d 2x+13=21
Answer:
13 + 2x = 21 where x is the number of bottles of water
Step-by-step explanation:
pizza plus water = 21
13 + water = 21
Each water is 2 dollars
13 + 2x = 21 where x is the number of bottles of water
. A(0,8), B(6,5), C(-3,2)
Answer:
a
Step-by-step explanation:
2(x -1) = x -4 what the answer?
Answer:
2x -2.
Step-by-step explanation:
2 x x = 2x 2 x -2 = -2.
The sum of 17 and a number x is equal to 21.
Answer:
x = 4
Step-by-step explanation:
[tex]17 + x =21[/tex]
Subtract 17 on both sides
[tex]x = 4[/tex]
help me pls i need this ive been waiting for 5 hours
Step-by-step explanation:
15.2*15.2=231.04
5.98*5.98=35.76
35.76 = 15.47
231.04 100
100-15.5= 84.5%
let me know if I was right cause I'm pretty sure its the answer
Mackenzie is planning shapes to cut out of stone for a large sculpture. She puts diagrams of two figures on a coordinate grid (shown below).
Answer:
The Area of the triangle is about 0.3 m^2 less than the area of the hexagon
Step-by-step explanation:
Answer:
Answer A
Step-by-step explanation:
Will give u a crown
Answer:
[tex]E=\frac{mv^2}{2}[/tex]
Step-by-step explanation:
[tex]m=\frac{2E}{v^{2} }[/tex]
Multiply [tex]v^2[/tex] to both sides:
[tex]m*v^2=\frac{2E}{v^{2} } *v^2[/tex]
[tex]mv^2=2E[/tex]
Switch sides:
[tex]2E=mv^2[/tex]
Divide both sides by 2:
[tex]E=\frac{mv^2}{2}[/tex]
Question 19 of 40
A team won 5 and lost 2 of their first 7 games. The
team continued to win at this rate and won w
games in the 28-game season. Which of the
following proportions could be used to determine w?
Answer:
5/7=W/28
Step-by-step explanation:
They won 5 out of 7 played games so that's their win rate. If the same team continued to do this for 28 games then they would win 20 times.
Answer:
answer is C.
5/7=w/28
Step-by-step explanation:
I took the test and it was right
HELP PLEASE SOMEONE SOMBOBY ANYONE SMART I NEED THE NERDS PLEASE
What value of x makes this equation true?
14x - 12 = 8 - 21x
F. 7/4
G. 4/7
H. 0
J. 8/21
Answer:
G. 4/7
Step-by-step explanation:
They both equal to -4 using that value
Please help this is due in a 20 minutes!
please help i need this done soon
Jorge’s printer can print 36 pages in 18 minutes. How many pages can it print in 1 hour
Answer:
120 pages can be printed in 1 hour.
Step-by-step explanation:
First divide 36 by 18 to figure out how many pages can be printed in a minute.
Like this: 36 pages ÷ 18 minutes = 2 pages in one minute.
Now, multiply 2 by 60 to figure out how many pages can be printed out in a hour.
Like this: 2 pages in one minute × 60 minutes ( one hour) = 120 pages in one hour can be printed.
Hope this helps!
An electric company calculates a persons monthly bill from the number of kilowatt kWh, x, used
The function (in photo ) determines the bill
How much is the bill for a person who uses 400 kWh in a month
A. 50
B. 60
C. 40
D. 30
Answer:
Option (A)
Step-by-step explanation:
From the given piecewise function that represent the amount of bill from number of units of electricity used is 'x' kWh.
b(x) = 0.10x when x ≤ 200
0.15(x - 200) + 20 when x > 200
For x = 400 kWh,
Function which represents the expenses of the bill,
b(400) = 0.15(400 - 200) + 20 [Since x > 200]
= 0.15(200) + 20
= 30 + 20
= $50
Therefore, Option (A) will be the answer.
0.5
0.5"
- 5
f.
What is the the answer to this?
Answer:
could you be more specific pls
a parking lot is going to be 40 m and 100 m long. which dimensions could be used for a scale model of the lot? this is for apex
Terrence deposited $5,720 in
a bank account with interest rate
6%. How much interest was
earned in 4 years?
Answer:
$1,372.80
Step-by-step explanation:
I =Prt
I =(5,720)(0.06)(4)=1,372.8
What is 12% of 800?
Answer:
96
Step-by-step explanation:
What is the best first step to solve the inequality 5x - 3 ≥ 2?
O Add 3 to both sides of the equation
O Subtract 3 from both sides of the equation,
O Add 2 to both sides of the equation
O Subtract 2 from both sides of the equation,
the answer is a
Step-by-step explanation:
right on e2021
What is the slope of a line parallel to the line through (5, -1) and (0, -6)
Answer:
The slope is 1
Step-by-step explanation:
Do the slope formula y2-y1/x2-x1
- 5+ (-4) = ?
Can you guys please help me
Answer:
-9 because a negative plus a negative is a negative so -5+-4 or -5-4 is -9
Step-by-step explanation:
