Answer:
Step-by-step explanation:
variance = (S.D)^2
=3.2^2
=10.24
=10
therefore , varience of a distribution is 10
An isosceles triangle has an angle that measures 120°. What measures are possible for the other two angles? Choose all that apply.
1) 10 Degrees
2) 30 Degrees
3) 120 Degrees
4) 70 Degrees
10. A sphere has a volume of 7,234.56 units?. Using 3.14
for pi, find the radius of the sphere. Record your answer
on the grid.
The radius of the sphere has a volume of 7,234.56 units^3 is 1728 units.
We have the sphere has a volume of 7,234.56units^3
V=7,234.56units^3
What is the formula for the volume of a sphere?
[tex]V=(4/3)(pi)(r^3)[/tex]
Where r is the radius.
Solving this for r^3, we get
[tex]r^3=\frac{V}{(4/3)(pi)}[/tex]
[tex]r^3=\frac{V}{(4/3)(3.14)}[/tex]
[tex]r^3=\frac{7,234.56}{4.19}[/tex]
[tex]r=1728[/tex]
Therefore we get the radius of the sphere is r = 1728 units
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Solve Me Mobiles puzzle #20 I need help please I'll give 36 points. I just need help trying to solve this puzzle!!!!
Answer:
Pink Trapezoid = 15
Green Cresent = 11
Step-by-step explanation:
The total weight of the mobile is 30.
Because the mobile is evenly balanced between both sides, and we know the diamonds weigh 2 each, we can use simple math tofind the values of the other shapes.
So the total weight (30) divided by the 2 sides = 15 on each side.
This means the pink trapezoid weighs 15 and the rigt side weighs 15.
So 15 - 2 - 2 = 11
So the green Crescent weighs 11.
on monday lexi rode 3 miles on a bike on tuesday she rode 3 times more than she did monday on wednesday she rode an additional 4 miles
Answer:
Lexi rode a total of 13 miles in 3 days.
Step-by-step explanation:
3x3+4=13
Answer: The other answer is wrong it Lexi road 16 miles and not 13
16 is rigth
A computer is programmed to generate a sequence of three digits, where each digit is either 0 or 1, and each of these is equally likely to occur. construct a sample space that shows all possible three-digit sequences of 0s and 1s and then find the probability that a sequence will contain exactly one 0. a. 000, 001, 010, 011, 100, 101, 110, 111; the probability is startfraction 7 over 8 endfraction. b. 001, 011, 101, 111; the probability is startfraction 2 over 8 endfraction. c. 000, 010, 011, 101, 111; the probability is startfraction 2 over 8 endfraction = one-fourth. d. 000, 001, 010, 011, 100, 101, 110, 111; the probability is startfraction 3 over 8 endfraction.
The probability that a sequence will contain exactly one 0 is 3/8.
What is probability?
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1,
We should consider sequences of three digits, where each digit is either 0 or 1. A sequence has three places .
where each place has two possibilities, i.e., 0 or 1, so, for the multiplication rule
we know that the sample space will have (2)(2)(2) = 8 sample points.
Specifically, the sample space is
S = {111, 110, 101, 011, 100, 010, 001, 000},
There are three sequences with exactly one 0.
Therefore the probability that a sequence will contain exactly one 0 is 3/8.
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can someone please help me work out this question i really don't understand
Answer:
108 cm^2
Step-by-step explanation:
rectangle + 2 triangle = total area
L x W + 2 * 1/2 base * height = total area
(5x12) + 2 * 1/2 * 12 * 4 = total area
60 + 48 = 108 cm^2
Answer:
108 cm²
Step-by-step explanation:
To do:
1. find area of rectangle 2. find area of triangles 3. add them together
area of a rectangle = bxh = 5x12 = 60
area of triangle = (bxh)/2 = (12x4)/2 = 24
60+24+24=108
Need help on this question
When mixed together in varying degrees, the three primary additive colors, consisting of ________, can produce all the other colors in the spectrum.
Answer:
Red, Blue, Yellow
Step-by-step explanation:
The three primary colors are red, blue, and yellow.
Ik this isn’t a math question but I just want to know how much is worth cause I think I got it like 10 years ago i don’t know I just forgot I had it
Answer:
well just look at the price tag it should cost the same price sense it was only about ten years ago its not like it is a thousand years old.
What is the perimeter? If necessary, round to the nearest tenth.
Answer:
180
Step-by-step explanation:
a^2 + b^2 = c^2
(18^2)+(80^2)=6724
square root of 6724 is 82
82+18+80 = 180
In two or more complete sentences, explain how to solve the cube root equation, 3_/x+1 -2 = 0.
Answer:
You do the thing, then the other thing than BAM! An answer!
Step-by-step explanation:
POINTS
You are buying bags of flour and bags of sugar for a bakery. You must buy three times as many bags of sugar as there is bags of flour. Also, you are on a budget of $720. Of flour costs $6 per bag and sugar costs $4 per bag, how many bags of flour and how many bags of sugar can you buy
The number of bags of flour would be 40.
And, the number of bags of sugar would be 120.
Given that,
You must buy three times as many bags of sugar as there are bags of flour.
And, you are on a budget of $720. Flour costs $6 per bag and sugar costs $4 per bag.
Let us assume that,
The number of bags of flour = x
And, the number of bags of sugar = y
Hence, we get;
y = 3x .. (i)
And, 6x + 4y = 720 .. (ii)
Substitute x = 3y in (ii);
6x + 4 (3x) = 720
6x + 12x = 720
18x = 720
x = 720/18
x = 40
From (i);
y = 3 × 40
y = 120
Thus, The number of bags of flour = 40
And, the number of bags of sugar = 120
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6. We want to build the smallest cube possible using bricks with dimensions 8 cm - 12 cm 20 cm. How many bricks do we need?
Answer:
1200
Step-by-step explanation:
We’ll need a number that is evenly dividable by all three values: 8,12 & 15. We can develop the generic common multiple by multiplying all three numbers and get 1440. But is that the smallest common multiple? The quick and dirty way to factor the number is to divide it by it’s various elements and see what works. In this case 1440/12=120 which is the smallest common multiple of the three numbers. The smallest length is therefore 120.
In order to find how many bricks just divide (120x120x120)/(8x12x15)=1200 bricks
The area of a rectangle is 44 square units. Its length measures 11 units. Find the
length of its diagonal. Round to the nearest tenth of a unit.
Answer:
about 11.7 units
Step-by-step explanation:
[tex]11w = 44[/tex]
[tex]w = 4[/tex]
[tex] \sqrt{ {11}^{2} + {4}^{2} } = \sqrt{121 + 16} = \sqrt{137} = 11.705[/tex]
Please help super fast I will give brainliest
Answer: hii
1 is the only correct expression.
Step-by-step explanation:
Anything raised to 0 is 1.
Hopefully this helps you
- Matthew <3
Answer: A, B, C, D
All four answers are to be checked off
Explanation:
Anything of the form [tex]x^0[/tex] will be equal to 1, whenever x is nonzero.
So [tex]5^0 = 1[/tex]
All of the answer choices mentioned simplify to 1. Dividing any nonzero value over itself yields 1, so that explains A and B.
Choice C should be fairly obvious, and choice D there isn't any simplification needed.
I need help asp pleaseee!!!
Answer:
Option B, [tex]396\ units^2[/tex]
Step-by-step explanation:
Step 1: Determine the area of the bottom
[tex]A = l * w[/tex]
[tex]A = 12\ units * 8\ units[/tex]
[tex]A = 96\ units^2[/tex]
Step 2: Determine the area of the back
[tex]A = l * w[/tex]
[tex]A = 9\ units * 8\ units[/tex]
[tex]A = 72\ units^2[/tex]
Step 3: Determine the hypotenuse
Pythagorean theorem → [tex]a^2 + b^2 = c^2[/tex]
[tex]12^2 + 9^2 = c^2\\[/tex]
[tex]144 + 81 = c^2[/tex]
[tex]225 = c^2[/tex]
[tex]\sqrt{225} = \sqrt{c^2}[/tex]
[tex]15 = c[/tex]
Step 4: Determine the area of the top
[tex]A = l * w[/tex]
[tex]A = 15\ units * 8\ units[/tex]
[tex]A = 120\ units^2[/tex]
Step 5: Determine the area of the triangles
[tex]A = \frac{h\ *\ b}{2}[/tex]
[tex]A = \frac{9\ units\ *\ 12\ units}{2}[/tex]
[tex]A = \frac{108\ units^2}{2}[/tex]
[tex]A = 54\ units^2[/tex]
Step 6: Determine the surface area
[tex]96\ units^2 + 72\ units^2 + 120\ units^2 + 2(54\ units^2)[/tex]
[tex]396\ units^2[/tex]
Answer: Option B, [tex]396\ units^2[/tex]
Use the Distributive Property to solve: 4(x + 2) = 32
Answer:
The value of x = 6
Step-by-step explanation:
=> 4(x + 2) = 32
=> 4x + 8 = 32
=> 4x = 32 - 8
=> 4x = 24
=> x = 24/4
=> x = 6
The new aircraft model has a passenger section that is 100 feet long. Using appropriate variables, write an equation expressing the relationship between the number of rows of seats on the airplane and the seat pitch. Assume that the seatbacks in the last row are flush against the wall
Answer:
16x257
Step-by-step explanation:this eqals that and stuff
find the slope of the line passing through the points (4,-6) and (3, -9)
btw the answer will be a fraction
Answer:
3/1 is the slope.
Step-by-step explanation:
Slope formula: y2 - y1/x2 - 1
Plugging in the given values, we get:
-9 - (-6)/3-4
-3/-1
Two negatives cancel each other out, so:
3/1 is the slope.
A box is shaped like an octagonal prism. Here is what the base of the prism looks like. I already got question one solved, but question two is If the volume of the box is 123in cubed, what is the height of the box?
Answer:
287(inches)³
!! PLEASE PLEASE PLEASE PLEASE MARK ME THE BRAINLIEST !!
Find the derivative of the following function at x = 12. f(x) = 7x2
[tex]\text{Given that,}\\\\f(x) = 7x^2\\\\f'(x) = 7\cdot 2 x = 14x\\\\\text{At x = 12,}\\\\f'(12) = 14 \times 12 = 168[/tex]
Help, please!!!
Simplify. (4/9)^2=
Answer:
Exact form: [tex]\frac{16}{81}[/tex]
Decimal form: 0.1975308
Can someone please give me the (Answers) to this? ... please ...
I need help….
Answer:
I just did for your previous posting.
please help asap il mark brainliest
Answer: Square is rhombus
Rectangle not rhombus
Last one rhombus
Step-by-step explanation:
They have to have parallel lines that never meet
All sides have to be the same size
I got the same question right to it should be right
A 95 % confidence interval for the proportion of democrat voters in the State of Florida based on a poll is (0.34, 0.43). Based on this confidence interval, is it reasonable to claim that less than 45 % of Floridian voters are democrats
Reason:
The confidence interval for the population proportion p is (0.34, 0.43)
This is equivalent to saying 0.34 < p < 0.43
We're 95% confident p is somewhere between 0.34 and 0.43
Both of these endpoints are smaller than 0.45, meaning that all of the proportions p in the interval are smaller than 0.45
So it's fairly reasonable to assume that less than 45% of the Floridian voters are democrats (since it seems to be between 34% and 43%). Keep in mind that there's always a margin of error with statistics, so we cannot say this with 100% certainty.
Yes, it is reasonable to claim that less than 45 % of Floridian voters are Democrats.
How to calculate a confidence interval for the population mean for a small sample?If the sample size is given to be n < 30, then for finding the confidence interval for the mean of the population from this small sample, we use a t-statistic.
Let the sample mean given as[tex]\overline{x}[/tex] and
The sample standard deviation s, and
The sample size = n, and
The level of significance = [tex]\alpha[/tex]
Then, we get the confidence interval in between the limits
[tex]\overline{x} \pm t_{\alpha/2}\times \dfrac{s}{\sqrt{n}}[/tex]
where, [tex]t_{\alpha/2}[/tex] is the critical value of 't' that can be found online or from tabulated values of critical value for a specific level of significance and degree of freedom n - 1.
The confidence interval for the population proportion p is given as (0.34, 0.43)
This is equivalent to 0.34 < p < 0.43
We're 95% confident that p is somewhere between 0.34 and 0.43
Both of these endpoints are smaller than 0.45, seems that all of the proportions p in the interval are smaller than 0.45
So it's fairly reasonable to assume that less than 45% of the Floridian voters are Democrats. So there's always a margin of error with statistics, so we cannot say this with 100% certainty.
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What is the volume of a cylinder with a base of 24 meters and a height of 6 meters
Answer:
Volume = 2714.34
Step-by-step explanation:
This is answer because the formula to finding cylinder volume is: [tex]\pi[/tex][tex]r^{2}[/tex]h
Radius = [tex]\frac{Diameter or Base}{2}[/tex]
Radius = 12
12 squared = 144
144*6 = 864
864[tex]\pi[/tex] = 2714.34 (rounded)
Solve for x.
X=?
5x-16 x+10
Answer:
The answer is x= 31
Step-by-step explanation:
(5x-16)+ (x+10)= 180 (Linear Pair)
Now, open the brackets
5x-16+x+10= 180
Arrange the like terms together
5x+x-16+10= 180
=> 6x-6= 180
=> 6x= 180+6
=> 6x= 186
=> x= 186/6 = 31
∴x= 31
Hope it helps!!
A salesperson sells $2100 in merchandise and earns a commission of $273, What is the commission rate?
if we take 2100 to be the 100%, what is 273 off of it in percentage?
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 2100 & 100\\ 273& x \end{array} \implies \cfrac{2100}{273}=\cfrac{100}{x}\implies \cfrac{100}{13}=\cfrac{100}{x} \\\\\\ 100x=1300\implies x=\cfrac{1300}{100}\implies x=13[/tex]
If your quiz is out of 14 and you get 80 percent how many questions did you get wrong
Answer: 2.8
Step-by-step explanation: 80/100 of 14 = 11.2
Wrong = 14 - 11.2
Answer:
You got 11.2 questions right and 2.8 questions wrong.
Step-by-step explanation:
80% * 14 is 11.2
And 14-11.2 is 2.8
determinan MAtriks beikut! -10-311-39-301-20012-4
Answer:
-20677
Step-by-step explanation:
-23 . - 29 . -31