Answer:
40
Step-by-step explanation:
The clock loses 2 minutes every 1/5 hour. A whole hour, or 5/5 would be 10 minutes lost. For four hours, multiply that by 4, so 10x4=20.
f(x) = 9x2 - 4
Find the zeros of the function
Answer:
I believe that the answer is 14.
Step-by-step explanation:
hope it helped
(3RD TIME POSTING THIS)
Write the word sentence as an inequality
A number x is no more than - 8
Answer:
x ≤ -8
Step-by-step explanation:
"A number x": x
"is no more than": ≤*
"-8": -8
x ≤ -8 is your answer.
*Note the choice of less than or equal too. "No more than" implies that it can technically be -8, only that it can't be greater than -8 (-7 or more).
~
Factoring Explanations Classwork
Directions:
For the following problems, you need to explain what method of factoring you will use and explain all the steps in English words. Do your best to format the math answers. *Some are much easier than others!*
Below are two examples:
Example #1: Factor 18x^2-200y^2 completely.
Answer: For this problem, we will use the difference of squares method.
First, we will factor out the greatest common factor which is 2.
2(9x^2-100y^2 )
Second, we must determine what a and b is.
a=√(〖9x〗^2 )=3x
b=√(〖100y〗^2 )=10y
Third, we put our answer in the form (a+b)(a-b), making sure to include the GCF 2.
Answer: 2(3x+10y)(3x-10y)
Example #2: Factor 2x^2-7x-15 completely.
Answer: For this problem, we will use the X method.
There is no GCF, so we will draw an x and put a*c on top (-30) and b on bottom (-7)
-10 and 3 multiply to get -30 and add to get -7.
Second, we split up the equation to now be this:
2x^2-10x+3x-15
Third, we group it together and factor out the GCF from each group.
(2x^2-10x)+(3x-15)
2x(x-5)+3(x-5)
Fourth and Last, we re-group it together to get our final answer.
Answer: (2x+3)(x-5)
Explain the method used and explain fully how to factor a^2-25
Explain the method used and explain fully how to factor 100-9x^2
Explain the method used and explain fully how to factor 12w^2-300
Explain the method used and explain fully how to factor q^3+125
Explain the method used and explain fully how to factor 27g^3-8f^3
Explain the method used and explain fully how to factor 4xy-14x+16y-56
Explain the method used and explain fully how to factor x^2+13x-30
Explain the method used and explain fully how to factor 9x^2+36
Explain the method used and explain fully how to factor 4x^2+15x+14
Explain the method used and explain fully how to factor 3x^2+15x+18
Answer: Set your trinomial equal to 160(360), then solve for "x". I think from your instructions that this is what it is asking you to do. But, there is a simpler way.
Step-by-step explanation:
2/5 to the third power
Answer:
[tex]\frac{8}{125}[/tex]
Step-by-step explanation:
[tex]\frac{2}{5} *\frac{2}{5} *\frac{2}{5} =\frac{8}{125}[/tex]
Help me WILL PICK BRAINLIEST
Ok so the equation is 5 (n - 4) = -60. We're supposed to find out what n is but I don't know. help meeeee
n is 7 :] ...
Step-by-step explanation:
pls mark brainlest
Answer:
n = -8
Step-by-step explanation:
5 (-8 - 4) = -60
5 (-12) = -60
-60 = -60
Do it on any calculator that's what you'll get
5x+6y+4, 3x+7z+6, and t+6h+2s+5
Answer:
1st x=66y
2nd x=35z
3rd 6h+2s+t+5
Step-by-step explanation:
MArk BRAINLIEST FOR 4 MATH ALGEBRA CALCULATORS
Please Help Me With This Question File Is Attached
I NEED HELP ASAP PLEASE
Answer:
20
Step-by-step explanation:
A company needed copy paper for their office staff. The cost was $52 per box of copy
paper. They also had to pay $48 to have it shipped. Write the function for the cost of the
copy paper per box.
a) If they bought 6 boxes of paper, how much did it cost?
Answer:
$600
Step-by-step explanation:
52+48=100
100x6=600
John invests $6750 in an account that pays 6.25% interest per year. After how many years will her
investment be worth $20,000? Show your work.
A = Pert
Answer:
32 years
Step-by-step explanation:
fist find how much of 6750 is 6.25%
6750 * .0625 = 421.875
then use trial and error until u get the number u want
421.875 * 10 = 4218.75 + 6750 = 1096875 NO
421.875 * 20 = 84375 + 6750 = 151875 NO
421.875 * 30 = 12656.25 + 6750 = 19406.25 NO
421.875 * 31 = 13078.125 + 6750 = 19828.125 NO
421.875 * 32 = 13500 + 6750 = 20250 YES
Can someone Help? thank you! :)
Answer:
$3
Step-by-step explanation:
Since he’s leaving a 20% tip, we need 20% of 15.
To solve, multiply 20/100 (20%) by 15:
20/100*15 = 300/100 = 3
He will leave a $3 tip.
Answer:
$3
Step-by-step explanation:
To solve this problem, first, one must convert the percent of the tip to decimal form. This can be done by dividing the percent by 100. Then one will multiply this value by the total bill.
20% * 15
= 0.2 * 15
= 3
8. Terry, a plumber, worked 9 months out of the year. What percent of the year
was Terry NOT WORKING? *
Answer:
25%
Step-by-step explanation:
9/12 = 3/4
1/4 (the months he wasn't working) = 25%
"The difference between the circumference and diameter of a wheel is 18cm. Find the radius of the wheel. Use 3.14 for Pi. Round to the nearest tenth."
Answer:
[tex]4.2\ \text{cm}[/tex]
Step-by-step explanation:
d = Diameter of wheel
The difference between the circumference and diameter of a wheel is 18 cm.
[tex]2\pi r-d=18\\\Rightarrow \pi d-d=18\\\Rightarrow d(\pi-1)=18\\\Rightarrow d=\dfrac{18}{\pi -1}\\\Rightarrow d=\dfrac{18}{3.14-1}\\\Rightarrow d=8.41\ \text{cm}[/tex]
The diameter of the wheel is 8.41 cm so the radius will be [tex]\dfrac{8.41}{2}=4.205\approx 4.2\ \text{cm}[/tex].
I don’t get this help!
A family wants to rent a car to go on vacation. Company A charges $30.50 and 11¢ per mile. Company B charges $60.50 and 16¢ per mile. How much more does Company B charge for x miles than Company A?
Answer:
30.05
Step-by-step explanation:
9. Which
of the following is a proper fraction?
A 12/10
B. 5/4
C.7/10
D.10 1/9
Answer:
c
Step-by-step explanation:
because in a proper fraction the numerator is less than the denominator
You earn $8.50 per hour. How many hours will it take you to earn $1,088.00?
Answer:
the answer is exactly 128 hours.
Answer: It will take 128 hours.
Step-by-step explanation: 1088 divided by 8.50 is 128, therefore, it would take 128 hours to make 1088 dollars off of a wage of 8.50.
Hope it helps, if not, comment below please!!!
:L
An alternating current. I Amperes, is given by i = 10sin2nft.where f is the frequenct in Hertz and t the time in seconds.What is the rate of change of current when t = 20ms given that f = 150 Hzπ
Answer:
150
Step-by-step explanation:
range of f(x)=3x^2-30x-9
Answer:
y ≥ -84
Step-by-step explanation:
-84 id the vertex so it is the lowest possible value for the range
Suppose demand d for a company's product at cost x is predicted by the
function d(x)=0.36x + 810, and that the price p that the company can charge
for the product is given by p(x) = x+14. Find the company's revenue function.
Answer:
0.36x ² + 815.04x + 11,340
Step-by-step explanation:
Revenue = price × quantity
p(x) = x+14
d(x) = 0.36x + 810
Revenue = price × quantity
= (x + 14) * (0.36x + 810)
= 0.36x² + 810x + 5.04x + 11,340
= 0.36x ² + 815.04x + 11,340
Company's revenue = 0.36x ² + 815.04x + 11,340
A population of wolves in a county is represented by the
equation P(t) = 80(0.98)', where t is the number of years
since 1998. What is the percent decrease of wolves per year?
Answer:
P(t)=80(0.98)t P ( t ) = 80 ( 0.98 ) t , where t is the number of years since 1998 Step-by-step explanation:
P(t)=80(0.98)t P ( t ) = 80 ( 0.98 ) t , where t is the number of years since 1998
The percent decrease of wolves per year is 2%.
To understand more, check below explanation.
Percentage decrease :A population of wolves in a county is represented by the equation,
[tex]P(t)=80(0.98)^{t}[/tex]
where t is the number of years.
Let us consider that, 1998 is base year. so that, t = 0
[tex]P(0)=80[/tex]
Population of wolves in 1999, substitute t=1
[tex]P(1)=80*0.98=78.4[/tex]
the percent decrease of wolves per year is computed as;
[tex]=\frac{80-78.4}{80} *100\\\\=\frac{1.6}{100}*100\\ \\=0.02*100=2\%[/tex]
The percent decrease of wolves per year is 2%.
Learn more about the percentage here:
https://brainly.com/question/24304697
2/17=X/9
what does x equal??
Answer: Multiply to remove the fraction, then set equal to
0
and solve.
Exact Form:
X = 18 /17
Decimal Form:
X = 1.05882352 …
Mixed Number Form:
X = 1 1 /17
2
17
=
X
9
what does
x
equal??
Multiply both sides of the equation by
9
.
2
17
⋅
9
=
X
9
⋅
9
Simplify.
Tap for more steps...
18 /17 = X
Rewrite the equation as
X = 18 /17 .
X = 18 /17
The result can be shown in multiple forms.
Exact Form:
X = 18 /17
Decimal Form:
X = 1.05882352 …
Mixed Number Form:
X = 1 1 /17
Step-by-step explanation:
2/17=X/9
what does x equal??
This data represents the number of books checked out of the school library by five students: 10, 15, 5, 10, 20 Find the mean absolute deviation. FIRST PERSON TO ANSWER GET BRAINLIEST!
Answer:
the answer is 12
Step-by-step explanation:
you are welcome
Answer:
12......................
PLEASE HELP THANK U SO MUCH
Answer:
Add the area of the rectangle to the area of the triangle.
6 x 7 = 42
3 x 6 x 0.5 = 9
So the area is 42+9=51
Let me know if this helps!
Please tell me the answer to 8 to the tenth power times 6 to the 4 power? I really need to know
Answer:
1391569403904
Step-by-step explanation:
Answer:
1.3915694e+12
Step-by-step explanation:
Triangle DEF is on a coordinate plane with its
vertices located at D( – 3,5), E( – 3, - 2), and
F(3,0). What is the area of ADEF in square
units?
Answer:
[tex]21\ \text{square units}[/tex]
Step-by-step explanation:
The points are [tex]D(-3,5), E(-3,-2)[/tex] and [tex]F(3,0)[/tex].
Area of a triangle is given by
[tex]A=\dfrac{D_x(E_y-F_y)+E_x(F_y-D_y)+F_x(D_y-E_y)}{2}[/tex]
[tex]\Rightarrow A=\dfrac{-3(-2-0)+-3(0-5)+3(5-(-2))}{2}[/tex]
[tex]\Rightarrow A=21\ \text{square units}[/tex]
The area of the given triangle is [tex]21\ \text{square units}[/tex].
Charley has 1 ⅞ pounds of trail mix. If each bag can hold 1/12-pound of mix, how many full bags can be made?
Answer:
9
Step-by-step explanation:
Answer:
22
Step-by-step explanation:
1 7/8 = 15/8
15/8 ÷ 1/12 = 15/8 × 12/1 = 45/2 or 22 1/2
Simplify to a single power of 2
Answer:
[tex]2^{4}[/tex]
Step-by-step explanation:
Answer:
2^4
Since the answer is 16.
ILL MARK AS BRAINLIST IF U GET IT RIGHT it’s khan
Answer:
5
Step-by-step explanation:
given that x and y are proportional, they can be expressed as y = rx, where r is the proportionality constant. Thus, we can solve for r by doing y/x in any given point.
[tex]\frac{8}{1.6} = \frac{15}{3} = \frac{22}{4.4} = 5[/tex]
How many degrees is angle A?
Answer:
128 degrees
Step-by-step explanation:
Answer: 112 degrees
============================================================
Explanation:
If we assume ABCD is a parallelogram, then the adjacent angles are supplementary.
So,
A+D = 180
A+68 = 180
A = 180-68
A = 112