Answer:
True
Step-by-step explanation:
Simplify the expression. Write your answer as a power. (-3)⁴/ (-3)¹
Answer:
(-3)^3
Step-by-step explanation:
What is the answer please help no links no links
A cone has a diameter of 20cm and a height of 12cm, what is the volume of the cone?
Answer:
The cone volume that has a diameter of 20cm and a height of 12cm is 5,026.548246 cm^3 or 5,027 cm^3
Make sure to round your answer to the nearest significant figure that you're asked.
Step-by-step explanation:
The formula for the volume of a cone is (height x π x (diameter / 2)^2)/3, where (diameter / 2) is the radius of the base (d - 2 x r), so another way to write it is (height x π x radius^2) / 3
please help want to know if this is correct the resultant of 2 forces 60N East and 20N East is 40N East
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it's not possible
I think -7 is the right answer but it's not possible actually
Answer:
c. -7
Step-by-step explanation:
(x+57) + (63+67) = 180
(x+57) + 130 = 180
x + 187 = 180
x = 180-187
x = -7
why did I make it equal to 180?
all the angles in a triangle always equal 180 :)
You have recently signed up for a new job and noticed this policy for retirement savings. Invest $200 and the employer does 70% matching for 35 years at an interest rate of 4.8%.
Find the total amount that the employer contributes each month.
What amount will you have after 35 years?
How much money have you deposited into the account yourself?
How much more money is in the account than what you have deposited?
Answer:
Amount per month contributed by employer $ = 200*0.70 = 140
Total amount employer contributes $ = 140*420 = 58800
Total amount employee contributes $ = 200*420 = 84000
Total amount after 35 years with interest calculated AT 4.8% (Employer + employee + interest) $ = 371024.67
Interest amount for 35 years accumulated $ = 228224.67
Amount deposited by employee $ = 84000
Excess amount in the account over the employee contribution
Including employer contribution $ = 287024.67
Excluding employer contribution $ = 228224.67
Step-by-step explanation:
LOOK AT THE PICTURE FOR STEPS
1) 3n² + 5n +7
A) quadratic monomial
B) cubic binomial
C) constant trinomial
D) quadratic trinomial
Answer:
D
Step-by-step explanation:
it is a quadratic trinomial
There are 60 fish in a gigantic tank at the New England Aquarium. 18 of them are sharks. What percent of the fish are sharks?
Answer:
30% of the fish are sharks
Step-by-step explanation:
18/60 = 0.3
0.3 * 100 = 30%
Answer: 30 per cent
Step-by-step explanation: 18 ·100 % /60 =30%
What is the length of de
Answer:
B. 37 units
Step-by-step explanation:
DE = 4x + 1
AB = 11x - 25
DE is a midsegment of the ∆ABC
Therefore:
DE = ½(AB) => Triangle Midsegment Theorem
4x + 1 = ½(11x - 25)
2(4x + 1) = 11x - 25
8x + 2 = 11x - 25
Collect like terms
8x - 11x = -2 - 25
-3x = -27
-3x/-3 = -27/-3
x = 9
✔️DE = 4x + 1
Plug in the value of x
DE = 4(9) + 1 = 36 + 1
DE = 37
Which of these is a safe practice when working with horses?
A . use a firm, loud voice
B . stay in the horse’s blind spot use quick-release knots for easy escape
C . if unattended, leave the horse tied up
Answer:
i think the awnser is c . if unattended, leave the horse tire up
PLEASE HELP !! ILL GIVE BRAINLIEST !!
Answer:
117
Step-by-step explanation:
angle 2 = 117 so angle 1 has to =63 because they have to equal 180 (supplementary angles)
angle 1 =63 . angle 3 =117
angle 7 is the same measurement of angle 3
hope this makes sense
Answer:
117 degrees
Step-by-step explanation:
angle 1 and 2 are supplementary angles which are angles whose measurements add up to 180 degrees
this means angle 1 = 63 degrees
63 + 117 = 180
angle 1 and 3 are linear pair angles which means they also equal 180 degrees
angle 3 = 117 degrees
angle 3 and angle 7 are corresponding angles which means their degrees are equal to each other
angle 7 = 117 degrees
The relationship between angle 2 and 7 would be alternate exterior angles
Arnold Landis made a deposit of $720 to open a savings account that pays interest at an annual rate of 5%, compounded quarterly.
a. If he keeps his original deposit in the saving account and is paid interest for four quarters, how much interest will he earn in the first year?
Answer:
Hope It Help
Step-by-step explanation:
Brainliest please
Hunter took out a $3,500 loan with interest to pay for some business supplies. He will repay the loan in 3 years with monthly payments of $109.68.
Find the total amount of Hunter’s repayment as well as the amount he will pay in interest.
He will pay back ______ in total and ______ in interest.
(Can someone help me with this!! will mark brainiest)
Answer:
he will pay back $3829.04 in total and $329.04 in interest.
Step-by-step explanation:
(Will give 50 points!) The dot plots below show the number of points scored by Sam and Daniel in 15 basketball games. What is the difference between the medians?
A) 2 points
B) 12 points
C) 16 points
D) 4 points
Answer:
C) 16 points
Step-by-step explanation:
Help with the calculus problem please
The area of the region is equal to the area under the curve y = cos(x) over the interval 0 ≤ x ≤ π/6, given by the integral
[tex]\displaystyle\int_0^{\frac\pi6}\cos(x)\,\mathrm dx = \sin(x)\bigg|_0^{\frac\pi6}=\sin\left(\frac\pi6\right)-\sin(0)=\boxed{\frac12}[/tex]
which follows from
• the fact that d/dx [sin(x)] = cos(x)
• the fundamental theorem of calculus
What is the volume of the figure below, which is composed of two cubes with side lengths of 6 units?
A.
216 cubic units
B.
360 cubic units
C.
432 cubic units
D.
36 cubic units
A recent article published in Berry Weekly reported a probability distribution for the different types of jelly that
individuals prefer. Editors from a competitive magazine, Jammin, conducted their own study to test the
distribution. The editors from Jammin surveyed a random sample of 50 individuals and recorded the observed
counts of individuals for each jelly type. They decided to test Berry Weeklys claim using a chi-square goodness-
of-fit test using Jammin's observed counts compared with the number of expected counts based on the Berry
Weekly data.
Answer:
Step-by-step explanation:
what is 6,720 divided by 14??
480 because 6,720 divided by 14 is 480
PLEASE I NEED HELP WITH THE BOTTOM QUESTION
Answer:
6/25
Step-by-step explanation:
Please help atleast tell me what the sum is
Answer:
x = 36
Step-by-step explanation:
Hi,
3x-26 + 3x - 10 = 180
6x - 36 = 180
6x = 216
x = 36
hope this helps :)
Answer:
6x-36 is your answer
Step-by-step explanation:
1. remove unnecessary parentheses
2. combine like terms
3. factor
4. your answer
A man invests $16 800 in a saving plan that pays simple interest at a rate of 5%. Find the time taken for his investment to grow to $18 900.
Please explain
Answer:
2.5 yearsStep-by-step explanation:
Given
Investment P = $16800Interest rate r = 5% = 0.05 Final amount A = $18900Time t = ?Use the formula
A = P(1 + rt), where A - final amount, P - investment, r- interest rate, t- timeSubstitute the given numbers and solve for t:
18900 = 16800( 1 + 0.05t)1 + 0.05t = 18900/168001 + 0.05t = 1.1250,05t = 0.125t = 0.125/0.05t = 2.5 years
What is the first step in solving the following system of equations?
3 x + y = 23. 8 x + 2 y = 23.
Substitute the value of y from one equation into the other equation.
Solve the first equation for y.
Subtract the second equation from the first equation.
Substitute the value of x from one equation into the other equati
Answer:
Solve the 1st equation for y and then you substitute the answer of the y value to the other equation to get the x value
help me on this pls!!!
Answer:
The length of the lake is 1.8 miles.
Step-by-step explanation:
These are similar triangles.
Help me please. I kinda need it right now.!
Step-by-step explanation:
Given
[tex]5y - 4 = 126(corresponding \: angles) \\ 5y = 126 + 4 \\ 5y = 130 \\ y = 130 \div 5 \\ = 26[/tex]
Also given
[tex]126 + (6z + 6) = 180(angles \: on \: a \: straight \: line) \\ 132 + 6z = 180 \\ 6z = 18 0 - 132 \\ 6z = 48 \\ z = 48 \div 6 \\ = 8[/tex]
Lastly,
[tex]x = 180 - 126 \\ = 54(angles \: on \: the \: same \: straight \: line \: and \: corresponding \: angles)[/tex]
Answer:
x = 126
y = 26
z = 8
Step-by-step explanation:
6z + 6 + 126 = 180
6z + 132 = 180
6z = 180 - 132
6z = 48
z = 8
6z + 6 + 5y - 4 = 180
6(8) + 6 + 5y - 4 = 180
48 + 2 + 5y = 180
50 + 5y = 180
5y = 180 - 50
5y = 130
y = 26
x = 126 (Because of alternate exterior angles thm)
Use the information to answer the question.
Juan has 5 counters. Carlos has 60 counters.
Carlos has how many times as many counters as Juan? Enter the answer in the box.
Answer:
22
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
Becuase it was simple math. Have a good day.
HELP PLEASE : For numbers 3 & 4, draw a triangle for each to find the missing side.
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 1) b = 2
2) c = 20
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
3) b = 2.24
4) c = 15.62
Step-by-step explanation:
Pythagorean formula:
a² + b² = c²
3)
a² + b² = c²
2² + b² = 3²
4 + b² = 9
b² = 5
b = 2.24
4)
a² + b² = c²
10² + 12² = c²
100 + 144 = c²
244 = c²
c = 15.62
An aquarium 4 m long, 1 m wide, and 1 m deep is full of water. Find the work needed to pump half of the water out of the aquarium. (Use 9.8 m/s2 for g and the fact that the density of water is 1000 kg/m3). Show how to approximate the required work by a Riemann sum.
Express the work as an integral.
Evaluate the integral.
Answer:
Workdone = 4900joules
Step-by-step explanation:
Work-done = force x distance
Force = mass x acceleration
If we suppose that the aquarium is at height 0 at the top and height 1 at the bottom (since it's 1m deep), then we need to lift the slide at height x by x metres.
Mass = Density x Volume, therefore force needed to lift the slice is given is
F = density*volume*∆x*acceleration
Since we the mass changes as we take out water then there will be a change in height, for this reason we have ∆x.
Acceleration is due to gravity, therefore g=9.8m/s²
Density = 1000kg/m³
Volume = 4*1*1 = 4m³
F = 1000*4*∆x*9.8 = 39200∆x
Since our distance from the top of the aquarium to the bottom is x metres, then
Work-done = 39200x∆x
To find the total workdone, we find the integral of 39200xdx and the limit will be from 0 to 0.5 since we are to pump halfway of the aquarium. Integrating that we have
19600*x² limit from 0 to 0.5
19600(0.5² – 0²) = 19600(0.25 – 0) = 19600(0.25) = 4900joules
(12x)
B
(2x + 5)
с
E
x= Answer
MAD -
Answer
BC
Answer
MDC
Answer
mDBC
Answer
D
(17x-14)
Answer:
x = 9
m(AD) = 108°
m(BC) = 23°
m(DC) = 139°
m(DBC) = 162°
Step-by-step explanation:
AD = 12x°
BC = (2x + 5)°
DC = (17x - 14)°
m<AEB = right angle = 90°
AB = m<AEB = 90° (central angle theorem)
90 + 12x + (2x + 5) + (17x - 14) = 360 (full circle)
✔️Solve for x
90 + 12x + 2x + 5 + 17x - 14 = 360
Add like terms
81 + 31x = 360
31x = 360 - 81
31x = 279
x = 279/31
x = 9
✔️Find m(AD)
m(AD) = 12x
Plug in the value of x
m(AD) = 12(9) = 108°
✔️Find m(BC):
m(BC) = (2x + 5) = 2(9) + 5
m(BC) = 23°
✔️Find m(DC) = (17x - 14)° = 17(9) - 14
m(DC) = 139°
✔️Find m(DBC) = m(DC) + m(BC) = 139° + 23° = 162°
26,720 inches are equal to _______ miles.
Answer: 0.42171717 miles
Step-by-step explanation:
for inches to mile conversion divide by 63350
so got 0.421717
The test scores of the students in four classes are summarized below. Answer the questions about them.
Class A: The mean score is 112 and the range of scores is 46.
Class B: The mean score is 110 and the range of scores is 51.
Class C: The mean score is 117 and the range of scores is 47
Class D: The mean score is 115 and the range of scores is 55
a. Based on the information above, which class's scores have the most variability?
b. Based on the information above, which class's scores have the least variability?
Answer:
Suppose that the mean score is M, and the range of scores is R.
The range is the difference between the largest score and the smallest score.
So, if the largest score is L, and the smallest score is S, we have:
R = L - S
Now, if the value of R increases, means that the difference between L and S also increases.
So having a large range usually is also a sign of having large variability.
Then:
a: Based on the information above, which class's scores have the most variability?
The class's scores with the most variability will be the class's scores with the largest range, in this case, the largest range of scores is for Class D.
b: Based on the information above, which class's scores have the least variability?
Now we need to look at the class with the least range of scores, in this case, the smallest one is the one for Class A.