Step-by-step explanation:
I might not get you all correct
Jeff can paint 28 square feet every 15 minutes. Angela can paint 115 square feet every hour. Who can paint faster, and by how many square feet per hour?
Answer:
Angela by 3 sf per hour
Step-by-step explanation:
60÷15=4
28×4=112
115-112=3
Which expression is equivalent to the given expression? (2w-2)^3(8w6)
Answer:
Answer A=48
Step-by-step explanation:
Took the test got it right.
The expression (2w - 2)³ × (8w⁶) is equivalent to :
64w⁹ - 64w⁶ - 192w⁸ + 192w⁷.
What is expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is the expression as -
(2w - 2)³ × (8w⁶)
The given expression is -
(2w - 2)³ × (8w⁶)
{2(w - 2)}³ × (8w⁶)
8(w - 1)³ × (8w⁶)
(a+b)³ = a³ - 3a²b + 3ab² - b³
So, on expanding, we will get -
8(w³ - 1 - 3w² + 3w) x (8w⁶)
(8w³ - 8 - 24w² + 24w )(8w⁶)
64w⁹ - 64w⁶ - 192w⁸ + 192w⁷
Therefore, the expression (2w - 2)³ × (8w⁶) is equivalent to :
64w⁹ - 64w⁶ - 192w⁸ + 192w⁷.
To solve more questions on expressions, visit the link below -
brainly.com/question/1041084
#SPJ5
Eric had a total of 40 nickels and dimes if the total value of the coins is 330 cents, how many nickels and dimes does he have?
Answer:
165 of nickels and 165 of dimes
Irfan manages a coffee shop.
He samples 50 of his customers and asks them about their favourite espresso
coffee capsule.
Taste
His results are shown in the table.
Frequency
Volluto
12
Livanto
7
Ristretto
23
Cosi
3
Other
5
Irfan is going to refill his stock of espresso capsules based on this survey.
He is planning on ordering 500 capsules.
How many of these should be Ristretto capsules? I
Note Please make your final answer clear by writing ... Ristretto capsules
[3]
Answer:
Ristretto will be 230 capsules i think
Step-by-step explanation:
50 customers = 50 capsules
500 capsules = 500 customers
50 time 10 = 500
so if Ristretto is 23
23 times by 10 = 230
Which property of operation could you use to show whether 7y + 7b + 3y and 7(y x b) + 3b are equivalent or not
Answer and explanation:
They are not equivalent because if we simplify the second expression, the result isn't the same:
7(y×b)+3b
= 7(yb)+3b
=7yb + 3b
Therefore 7yb+3b≠7y+7b+3y
And even though you meant
7(y+b)+3b
=7y+7b+3b
=7y+10b
7y+10b≠10y+7b
I need help with this please help me
Answer:
(25,20)
Step-by-step explanation:
Ratio 5:4
5:4
10:8
15:12
20:16
25:20
Hope this helps!!~~Answer:
20,16
Step-by-step explanation:
what’s the answer ???????
Answer:
2/9
Step-by-step explanation:
anything repeating is over 9
What is the value of this measure
Answer:
1.25
Step-by-step explanation:
Take out 1 and you get 0 and 50. the middle of 0 and 50 is 25. So, 1.25
Solve: 4b + 3 = 32.2 b = _____
Step-by-step explanation:
4b+3=32.2
4b=29.2
b=7.3
Answer:
The answer is b = 0.10638297
Step-by-step explanation:
hope this helped!
brainly, please?
Problem #3
The velocity (v) of an object is equal to its initial velocity (vo) plus the product of its acceleration
(a) and the elapsed time (1). write an equation that expresses time in terms of the other variables.
Answer:
[tex]\displaystyle t=\frac{v-v_o}{a}[/tex]
Step-by-step explanation:
Equations
It's given that the velocity (v) of an object is equal to its initial velocity (vo) plus the product of its acceleration (a) and the elapsed time (t).
The equation that expresses the above relationship is
[tex]v =v_o+at[/tex]
We must write an equation that expresses time in terms of the rest of the variables given above.
Swap the equation:
[tex]v_o+at=v[/tex]
Subtract vo:
[tex]at=v-v_o[/tex]
Divide by a:
[tex]\boxed{\displaystyle t=\frac{v-v_o}{a}}[/tex]
Lamont has 30 books to pack in boxes . Each box holds 7 books. If he fills each box, how much books are left over ?
Answer:
B. 2
Step-by-step explanation:
To solve this, we need to divide 30 by 7. 30/7=4 R2
The remainder is 2, so there are 2 books left over.
Hope his helps and have an amazing day *^____^*
Answer:
2
Step-by-step explanation:
If 1 box holds 7 books...
2 boxes hold 14 books.
3 boxes hold 21 books.
4 boxes hold 28 books.
5 boxes hold 35 books.
However, since there are only 30 books, the 5th box won't be completely filled up. This gives us the answer: If Lamont fills up each box he would have 30-28, or 2 books left over.
Hope this helps!
From 15 to 27 what is the percentage increase ?
Answer:
80
Step-by-step explanation:
(27-15):15*100 =
(27:15-1)*100 =
180-100 = 80
I hope this helped!
Sincerely,
Rekifromsk8theinfinity
:D
Answer:
66.66666667 percent
Step-by-step explanation:
In this case we have a positive change (increase) of 66.66666667 percent because the new value is greater than the old value. Using this tool you can find the percent increase for any value.
I need some help I've been doing this for thirty minutes and no luck
Answer:
(27x2)1/3 1/3±27×2
Step-by-step explanation:
es la cantidad que me dio al resolverlo
Answer:
its 3x square root i think
Step-by-step explanation:EZ
Solve for x. Round to the nearest tenth.
Answer:
Step-by-step explanation:
Youre given the adjacent and hypotenuse, so you can use cosine. SOHCAHTOA
cos(37) = 48/x
x = 60.1
Which function is a horizontal translation of the parent quadratic function, f(x)=x^2?
HELP PLS
Answer:
f(x)=
[tex] {x}^{2} + 8[/tex]
or
[tex] {x}^{2} - 4[/tex]
Answer:
g(x) = (x-4)^2
Step-by-step explanation:
Just took the test and got it right. SEE picture for answer.
1. Which Quadrant is Point F in?
Answer:
point f is in quadrant 3 . . .
Estimate 73% of 120
Thanks if you help!
Answer:
73/100 (120)
answer:-87.6
Answer:
87.6
Step-by-step explanation:
[tex]\frac{73}{100}[/tex] = [tex]\frac{x}{120}[/tex]
73*120/100= 87.6
Select the correct answer.
Find the solution(s) for x in the equation below.
x^2+10x+21=0
Answer:
Hope this helps
Step-by-step explanation:
x= -3, -7
Answer:
x = -7, -3
Step-by-step explanation:
Try to factor the left side of the equation.
(x +7)(x + 3) = 0 Remember that if AB = 0, then A = 0 or B = 0 or both A and B = 0
Therefore, x + 7 = 0 or x + 3 = 0
x = -7 or x = -3
(3x²+4x-1) + (-2x²-3x+2)
Answer:
(3x²+4x-1) + (-2x²-3x+2)
3x²+4x-1 -2x²-3x+2
3x²-2x²+4x-3x-1+2
x²+x+1
Answer:
x²+x+1
Step-by-step explanation:
the area of a parallelogram is 75 sq cm the base is 12.5 what is the height of the parallelogram
Answer:
6 cm
Step-by-step explanation:
Area of parallelogram = 75 sq.cm
base * height = 75
12.5 * height = 75
height = 75÷ 12.5
height = 6 cm
QUICK FOR A BRAINLEIST! awnser the question
Answer:
Might be B
Step-by-step explanation:
try if you like its 50/50
Sandeep says that the expression
9x + 3 is equivalent to the expression
3(3x + 1). Is Sandeep correct?
Answer:
YES
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
Distributive Property:
3(3x+1)
9x+3
A three foot long deli sandwich must be split into three pieces so that the middle piece is twice as long as the shortest piece, and the shortest piece is 8 inches shorter than the longest piece. How long should the three pieces be?
Answer:
Step-by-step explanation:
Let us represent:
Short pieces = x
Middle pieces = y
Long pieces = z
A three foot long deli sandwich must be split into three pieces
x + y + z = 3
The middle piece is twice as long as the shortest piece
y = 2x
The shortest piece is 8 inches shorter than the longest piece.
x = z - 8
z = x + 8
We substitute
x + y + z = 3
x + 2x + x + 8 = 3
5x = 8 - 3
5x = 5
x = 5/5
x = 1
y = 2x
y = 2 × 1
y = 2
z = x + 8
z = 1 + 8
z = 7
How long should the three pieces be?
20 points! Write an exponential function in the form y=ab^x that goes through points (0, 8) and (2, 200)
Answer:
[tex]y=8(5)^x[/tex]
Step-by-step explanation:
We want an exponential function that goes through the two points (0, 8) and (2, 200).
Since a point is (0, 8), this means that y = 8 when x = 0. Therefore:
[tex]8=a(b)^0[/tex]
Simplify:
[tex]a=8[/tex]
So we now have:
[tex]y = 8( b )^x[/tex]
Likewise, the point (2, 200) tells us that y = 200 when x = 2. Therefore:
[tex]200=8(b)^2[/tex]
Solve for b. Dividing both sides by 8 yields:
[tex]b^2=25[/tex]
Thus:
[tex]b=5[/tex]
Hence, our exponential function is:
[tex]y=8(5)^x[/tex]
Answer:
[tex]y = 8(5) {}^{x} [/tex]
Step-by-step explanation:
The normal exponential function is in form
[tex]y = ab {}^{x} [/tex]
let plug in 0,8
[tex]8 = ab {}^{0} [/tex]
b^0=1
so
[tex]8 = a \times 1 = \: \: \: \: a = 8[/tex]
So so far our equation is
[tex]y = 8b {}^{x} [/tex]
So now let plug in 2,200
[tex]200 = 8b {}^{2} [/tex]
Divide 8 by both sides and we get
[tex]25 = b {}^{2} [/tex]
[tex] \sqrt{25} [/tex]
Which equal 5 so b equal 5. So our equation is
[tex]y = 8(5) {}^{x} [/tex]
Hina buys a laptop for Rs 45,500 and pays 16% general sales tax. What is the amount of tax?
plz i need it urgent on paper
Answer: Rs 7,280
Step-by-step explanation:
The technique to find tax is by multiplying the sales price and the percent of tax.
If you are still confused, I can provide some examples:
Price: 100$, Tax: 20%⇒100×20%=20$Price: 50$, Tax: 30%⇒50×30%=15$------------------------------------------------------------------------
Given
Price: Rs 45,500
Tax: 16%
Calculate
45,500×16%=Rs 7,280
Hope this helps!! :)
Please let me know if you have any questions
Can someone please help me on this
Answer: y=2
Step-by-step explanation: 2 is the y intercept and the slope is 0
Use synthetic division to divide the polynomials.
(2y^3 + 6y² + 7y - 6) / (y + 1)
Answer:
Step-by-step explanation:
-1_| 2 6 7 -6
-2 -4 -3
2 4 3 -9
2y^2 + 4y + 3 - 9/(y + 1)
Madison saves 40% of all that she earns for washing cars. So far she has saved $72. How much has she earned in all?
Answer:
Madison has earned 180 dollars in all.
Step-by-step explanation:
Let [tex]x[/tex] denotes amount earned by Madison.
Percentage of amount saved by Madison [tex]=\frac{40}{100} x[/tex]
Amount saved by Madison [tex]=72[/tex] dollars
Therefore,
[tex]\frac{40}{100}x=72\\x=72(\frac{100}{40})[/tex]
[tex]=180[/tex] dollars
So,
Madison has earned 180 dollars in all.
cos 45 degrees exact value. Plz help. I will mark brainliest.
Answer:
cos45° = [tex]\frac{1}{\sqrt{2} }[/tex] = [tex]\frac{\sqrt{2} }{2}[/tex]
Step-by-step explanation:
Using the 45- 45- 90 triangle with legs 1, 1 and hypotenuse [tex]\sqrt{2}[/tex] , then
cos45° = [tex]\frac{1}{\sqrt{2} }[/tex] = [tex]\frac{\sqrt{2} }{2}[/tex] if the denominator is rationalised
please help, will be grateful and give brainliest!
Answer:
x=216°
Step-by-step explanation:
100%=360°
To find 10% divide by 10
10%=36°
x4
40%=144°
in a full circle thered 360°
360-144=216°
x=216°