Answer:
Step-by-step explanation:
Given that in an experiment, a number cube is rolled 4 times. The number of times a 5 shows is recorded. Sixty trials of the experiment are run.
No of 5's Freq Prob
0 6 0.1
1 9 0.15
0 33 0.55
3 3 0.05
4 9 0.15
60 1
The above is the probability distribution of the discrete variable.
Help please I need help
Answer:
x = 4Step-by-step explanation:
Look at the picture.
ΔABC and ΔACD are similar. Therefore the corresponding sides are in proportion:
[tex]\dfrac{AB}{AC}=\dfrac{AC}{AD}[/tex]
We have:
[tex]AB=2+6=8,\ AC=x,\ AD=2[/tex]
Substitute:
[tex]\dfrac{8}{x}=\dfrac{x}{2}[/tex] cross multiply
[tex]x^2=(8)(2)\\\\x^2=16\to x=\sqrt{16}\\\\x=4[/tex]
(2x^3)^2 x 6x^2
(2m^0 x 5m)^2 x 5m^2
Answer:
[tex]\large\boxed{(2x^3)^2\times6x^2=24x^8}[/tex]
Step-by-step explanation:
[tex](2x^3)^2\times6x^2\qquad\text{use}\ (ab)^n=a^nb^n\ \text{and}\ (a^n)^m=a^{nm}\\\\=2^2(x^3)^2\times6x^2=4x^6\times6x^2=(4\times6)(x^6x^2)\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=24x^{6+2}=24x^8[/tex]
tanisha office is on the 9 floor of an office building . She parks her car in the underground parking garage 4 floors below ground level how many floors are between tanisha office and her car?
Answer: 13
Step-by-step explanation: If there are 9 floors from where Tanisha's office is to the ground, but then also 4 more floors to her car, that would simply be 9+4. There are 13 floors between Tanisha's office and her car.
Solveee 3x^2 - 9 = 0
Answer:
x = ± [tex]\sqrt{3}[/tex]
Step-by-step explanation:
Given
3x² - 9 = 0 ( add 9 to both sides )
3x² = 9 ( divide both sides by 3 )
x² = 3 ( take the square root of both sides )
x = ± [tex]\sqrt{3}[/tex]
Place is highest to lowest 3/4 84% 1/3 0.82
ANSWER
84%,0.82,¾,⅓
EXPLANATION
Convert everything to decimals.
[tex] \frac{3}{4} = 0.75[/tex]
[tex] 84\% = 0.84[/tex]
[tex] \frac{1}{3} = 0.333....[/tex]
The last one is already in decimals.
[tex]0.82[/tex]
We can now see clearly, that
[tex]0.84 \: > \: 0.82 \: > \: 0.75 \: > \: 0.3333...[/tex]
This implies that,
[tex]84\% \: > \: 0.82 \: > \: \frac{3}{4} \: > \: \frac{1}{3} [/tex]
Hence from highest to least, we have
84%,0.82,¾,⅓
round 9,631.4725 to the nearest thousandth
The answer would be 9,631.473. Since there is a 5 after the two, you round up one value. Hope this helps!
Answer:
9,631.473
Step-by-step explanation:
The five would make 2 into a 3.
If p is a zero of 2x^2 - 5x + 3 then find the value of p.
The answer is zero 2x -3=0 x-1=0
How do u solve this?
Answer:
[tex]\large\boxed{\left\{\begin{array}{ccc}f(1)=5\\f(n)=f(n-1)\cdot(-2)\end{array}\right}[/tex]
Step-by-step explanation:
[tex]f(n)=5\cdot(-2)^{n-1}\\\\f(1)\to\text{put n = 1 to the equation of}\ f(n):\\\\f(1)=5\cdcot(-2)^{1-1}=5\cdot(-2)^0=5\cdot1=5\\\\\text{calculate the common ratio:}\ \dfrac{f(n+1)}{f(n)}\\\\f(n+1)=5\cdot(-2)^{(n+1)-1}=5\cdot(-2)^{n+1-1}=5\cdot(-2)^n\\\\r=\dfrac{f(n+1)}{f(n)}=\dfrac{5\!\!\!\!\diagup^1\cdot(-2)^n}{5\!\!\!\!\diagup_1\cdot(-2)^{n-1}}\qquad\text{use}\ \dfrac{a^m}{a^n}=a^{m-n}\\\\r=(-2)^{n-(n-1)}=(-2)^{n-n+1}=(-2)^1=-2\\\\\text{Therefore}\\\\f(n)=f(n-1)\cdiot(-2)[/tex]
given [tex]f(x)= 4x^2 + 6x and g(x) = 2x^2 +13x+15 \\[/tex], find (f/x) (x)
Answer: [tex](f/g)(x)=\frac{2x}{x+5}[/tex]
Step-by-step explanation:
Given the function f(x):
[tex]f(x)=4x^2+6x[/tex]
And the function g(x):
[tex]g(x)=2x^2+13x+15[/tex]
To find [tex](f/g)(x)[/tex] you need to divide the function f(x) by the function g(x).
Therefore, knowing this, you get:
[tex](f/g)(x)=\frac{4x^2+6x}{2x^2+13x+15}[/tex]
You can simplify the numerator by factoring out 2x:
[tex](f/g)(x)=\frac{2x(2x+3)}{2x^2+13x+15}[/tex]
You have to simplify the denominator:
Rewrite the term 13x as a sum of two terms whose product be 30:
[tex](f/g)(x)=\frac{2x(2x+3)}{2x^2+(10+ 3)x+15}[/tex]
Apply Distributive property:
[tex](f/g)(x)=\frac{2x(2x+3)}{2x^2+10x+ 3x+15}[/tex]
Make two groups of two terms:
[tex](f/g)(x)=\frac{2x(2x+3)}{(2x^2+10x)+ (3x+15)}[/tex]
Factor out 2x from the first group and 3 from the second group:
[tex](f/g)(x)=\frac{2x(2x+3)}{(2x(x+5))+ 3(x+5)}[/tex]
Factor out (x+5):
[tex](f/g)(x)=\frac{2x(2x+3)}{(2x+3)(x+5)}[/tex]
Simplifying, you get:
[tex](f/g)(x)=\frac{2x}{x+5}[/tex]
ANSWER
[tex]( \frac{f}{g} )(x) = \frac{2x }{x + 5}[/tex]
where
[tex]x \ne - \frac{3}{2} \: or \: x = - 5[/tex]
EXPLANATION
The given functions are:
[tex]f(x) = 4 {x}^{2} + 6x[/tex]
and
[tex]g(x) =2 {x}^{2} + 13x + 15[/tex]
We want to find ,
[tex]( \frac{f}{g} )(x) = \frac{f(x)}{g(x)} [/tex]
[tex]( \frac{f}{g} )(x) = \frac{4 {x}^{2} + 6x }{2 {x}^{2} + 13x + 15} [/tex]
[tex]( \frac{f}{g} )(x) = \frac{2x(2x + 3) }{2{x}^{2} + 10x +3x + 15} [/tex]
[tex]( \frac{f}{g} )(x) = \frac{2x(2x + 3) }{2{x}(x + 5) +3(x + 5)} [/tex]
[tex]( \frac{f}{g} )(x) = \frac{2x(2x + 3) }{(2x + 3)(x + 5)} [/tex]
We cancel out the common factors to get:
[tex]( \frac{f}{g} )(x) = \frac{2x }{x + 5} [/tex]
where
[tex]x \ne - \frac{3}{2} \: or \: x = - 5[/tex]
i am a number. i am half of the square root of 100. i am __________
Answer:
i believe it is five
Step-by-step explanation:
Answer:
The answer is 5
Step-by-step explanation:
the square root of 100=10 10/2=5
Can I get brainliest
John has a ribbon that was 1 1/2 meters long. He used 2 pieces that were each 1/3 of that length. How much ribbon did John use?
Answer:
1 meter.
Step-by-step explanation:
1 1/2 * 1/3
= 3/2 * 1/3
= 3/6
= 1/2.
So John used 2*1/2 = 1 meter of the ribbon.
Help please with workings of possible
Answer:
V = x³ + 10x² cm³
Step-by-step explanation:
The volume (V) of the triangular prism is calculated using the formula
V = area of triangular face × length
Area of triangular face = [tex]\frac{1}{2}[/tex] bh ( b is base and h is height )
here b = 2x and h = x, thus
A = [tex]\frac{1}{2}[/tex] × 2x × x = [tex]\frac{1}{2}[/tex] × 2x² = x²
length = x + 10, hence
V = x²(x + 10) = x³ + 10x²
(-3,-2) and (x,6); m=2
Answer:
x=1
Step-by-step explanation:
We can find the slope given two points by
m = (y2-y1)/(x2-x1)
2 = (6--2)/(x--3)
2 = (6+2)/(x+3)
2 = 8/(x+3)
Multiply each side by x+3
2(x+3) = 8/(x+3) * (x+3)
2(x+3) = 8
Divide each side by 2
2/2 (x+3) = 8/2
x+3 = 4
Subtract 3 from each side
x+3-3=4-3
x =1
in a city, 35% of the bus riders with a monthly pass are students. in a random sample of 50 bus riders with monthly passes, 23 are students.
what is ρ and ρ with ^
Answer:
ρ = 35% or 0.35
ρ with ^ = [tex]\frac{23}{50}=0.46[/tex] or equivalently 46%
Step-by-step explanation:
ρ represents the population proportion of the bus riders, with a monthly pass, who are students.
The population proportion is simply the percentage of the entire population with a particular characteristic. We have been informed that in a city, 35% of the bus riders with a monthly pass are students. This means that 35% of the whole population of bus riders with a monthly pass are students. Therefore, our ρ is simply 35% or 0.35.
ρ with ^ represents the sample proportion of the bus riders, with a monthly pass, who are students. This is a statistic or an estimator as it is normally used to estimate the value of ρ, the population proportion. It is calculated using the formula;
ρ with ^ = [tex]\frac{x}{n}[/tex]
where n represents the size of the sample and x the number of individuals in the sample with a certain desired characteristic. We have been informed that;
in a random sample of 50 bus riders with monthly passes, 23 are students.
Using the above formula and the values given we have;
ρ with ^ = [tex]\frac{23}{50}=0.46[/tex] or equivalently 46%
Answer: The correct answer is: ρ=0.35, ρˆ=0.46
Step-by-step explanation:
I hope this helps! :)
Johnny and his family arrived in Williamsburg Virginia at 1:15 p.m. they drove for 45 minutes after they stopped for lunch their lunch break was 20 minutes they drove for 2 hours and 10 minutes before stopping for lunch what time did they leave home?
Answer:
1:15 P.M. - (:45 + :20 + 2:10) =
1:15 P.M. - 2:75 = 13:15 - 3:15 =
10:00 A.M.
Johnny and his family left home at 10:00 A.M.
Nadia plans to paint her jewelry box. The box is shaped like a rectangular prism with the dimensions
shown. which is closest to the total surface area of the jewelry box?
Answer:
[tex]132\ in^{2}[/tex] is closest to the total surface area of the box
Step-by-step explanation:
we know that
The surface area of the box is equal to
[tex]SA=2B+PH[/tex]
where
B is the area of the base
P is the perimeter of the base
H is the height of the box
we have
[tex]L=7\frac{3}{4}\ in=\frac{7*4+3}{4}=\frac{31}{4}\ in[/tex]
[tex]W=3\frac{1}{4}\ in=\frac{3*4+1}{4}=\frac{13}{4}\ in[/tex]
[tex]H=3\frac{7}{8}\ in=\frac{3*8+7}{8}=\frac{31}{8}\ in[/tex]
Find the area of the base B
[tex]B=LW[/tex]
[tex]B=(\frac{31}{4})(\frac{13}{4})=\frac{403}{16}\ in^{2}[/tex]
Find the perimeter of the base P
[tex]P=2(L+W)[/tex]
[tex]P=2(\frac{31}{4}+\frac{13}{4}))[/tex]
[tex]P=2(\frac{44}{4})=22\ in[/tex]
Find the surface area
[tex]SA=2(\frac{403}{16})+22(\frac{31}{8})[/tex]
[tex]SA=(\frac{403}{8})+(\frac{682}{8})[/tex]
[tex]SA=\frac{1,085}{8}=135.625\ in^{2}[/tex]
Which line segment is a diameter of circle L?
1. HL
2. GJ
3. GK
4. IL
the diameter is 2. GJ as it goes across the whole circle
Answer:
GJ
Hope this helps :)
Have a great day !
5INGH
Step-by-step explanation:
Diameter = Any straight line segment that passes through the centre of the circle.
PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The line plot shows the weights of pumpkins available at a farm stand. The pumpkins cost $0.30 per pound. A baker purchases all of the pumpkins to make pies. If she uses a $100 bill to pay for the pumpkins, how much change will she receive?
If she uses a $100 bill to pay for the pumpkins, then the amount of change that she receives will be $ 32.5.
What is subtraction?It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.
The line plot shows the weights of pumpkins available at a farm stand. The pumpkins cost $0.30 per pound. A baker purchases all of the pumpkins to make pies.
Then the weight of all the pumpkins will be
→ 6 x 3 + 8 x 5 + 9 + 10 x 7 + 12 x 4 + 13 x 2 + 14
→ 225 pounds
Then the amount of money of 225 pounds will be
→ 225 x 0.3
→ $ 67.5
If she uses a $100 bill to pay for the pumpkins, then the amount of change that she receives will be
→ $ 100 - $67.5
→ $ 32.5
More about the subtraction link is given below.
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A radio transmission tower is 190 feet tall. How long should a guy wire be if it is to be attached 13 feet from the top and is to make an angle of 31 with the ground? Give your answer to the nearest tenth of a foot.
Answer:
343.7 ft
Step-by-step explanation:
The wire is anchored 190 -13 = 177 ft from the ground. That distance is opposite the given angle (31°). The measure you want is the hypotenuse of the triangle with that side and angle measures.
The mnemonic SOH CAH TOA reminds you that the relation between the opposite side, hypotenuse, and angle is ...
Sin(angle) = Opposite/Hypotenuse
Filling in the given information, you have ...
sin(31°) = (177 ft)/hypotenuse
Solving for hypotenuse gives
hypotenuse = (177 ft)/sin(31°) ≈ 343.7 ft
The length of the guy wire should be 343.7 ft.
To find the length of the guy wire attached 13 feet from the top of a 190-foot tall tower at an angle of 31° with the ground, we can use the sine function and trigonometry. The length of the guy wire is approximately 380.8 feet.
Explanation:To find the length of the guy wire, we can use trigonometry. The guy wire, the height of the tower, and the distance from the top of the tower to the attachment point form a right triangle. We can use the sine function to find the length of the guy wire: sin(31) = height of the tower / length of the guy wire. Rearranging the equation gives us length of the guy wire = height of the tower / sin(31). Plugging in the values, we get length of the guy wire ≈ 190 / sin(31) ≈ 380.8 feet. Therefore, the guy wire should be approximately 380.8 feet long.
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I am confused by this question. Can someone help
square root both sides, divide by v both sides, divide by 2 both sides, divide pCd both sides
Martin orders a pasta dish that is priced at $11.99. He also orders a drink. The total cost for the pasta and drink is $14.48. Which of the following equations can be used to find the cost of the drink?
14.48 + d = 11.99
11.99 + d = 14.48
11.99 + 14.48 = d
11.99 - d = 14.48
Nora has a coupon for $3 off of a calzone. She orders a beef and olive calzone, and her bill, with the discounted price, is $9.49. Which of the following equations can be used to find the regular price of the calzone?
c - 3 = 9.49
9.49 - c = 3
c + 3 = 9.49
c + 9.49 = 3
Martin's drink equation = option b, 11.99 + d = 14.48
Nora's calzone equation = option a, c - 3 = 9.49
Hope this helps
Your parents ask you to choose between two offers for an allowance. The first offer is to receive one penny on the first day, 2 penny’s on the second day, 4 pennies on the third day, 8 pennies on the fourth day and so on. (365 days). Second offer is to receive 10 the first week, 20 the second week, 30 the third week, and so on, for the entire year (52 weeks). Which offer should you choose to make more money?
Answer:
pennies/first offer
Step-by-step explanation:
you would be rich
1x2=2 2^364= a lot of pennies
the pennies gives u the most money
Dose anyone know number 7.
Answer: B
Step-by-step explanation: The Answer is B. 30 Sides.
The number of sides of the regular polygon each interior angle measuring 168° is 30. Thus, the correct option is B.
What is a polygon?A polygon is a planar figure characterised by a limited number of straight-line segments joined to create a closed polygonal chain in geometry. A polygon is defined as a bounded planar region, a bounding circuit, or both.
The measure of interior angles of a regular polygon is given by the formula,
[tex]\text{Measure of an interior angle} = \dfrac{(n-2) \times 180^o}{n}[/tex]
where n is the number of sides in the polygon.
Since it is given that measure of an interior angle of the polygon is 168°. Therefore, the number of sides will be,
[tex]168 = \dfrac{(n-2) \times 180^o}{n}[/tex]
168n = 180n - 360
180n - 168n = 360
12n = 360
n = 30
Hence, The number of sides of the regular polygon each interior angle measuring 168° is 30.
Learn more about Polygon:
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Solve for x
12=x^2+6x
Answer:
[tex]\large\boxed{x=-3\pm\sqrt{21}}[/tex]
Step-by-step explanation:
[tex]x^2+6x=12\\\\x^2+2(x)(3)=12\qquad\text{add}\ 3^2\ \text{to both sides}\\\\x^2+2(x)(3)+3^2=12+3^2\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(x+3)^2=12+9\\\\(x+3)^2=21\iff x+3\pm\sqrt{21}\qquad\text{subtract 3 from both sides}\\\\x=-3\pm\sqrt{21}[/tex]
what is 3/9 of 612??
Answer:
204
Step-by-step explanation:
First you divide 612 by 9 (612÷9) which gives 68.
Then multiply 68 by 3 (68×3) giving the answer 204.
Answer:
3/9 of 612 = 204
Step-by-step explanation:
Step 1: convert 3/9 into a decimal so that its easier to work with, that will be 0.3333333333
Step 2: since we know that "of" means "X" in math, we times it by 612 to get the answer of 204
Which is a solution to (x - 3)(x + 9) = -27?
х=-9 x = -3
х = 0
х = 6
Answer:
x=0
Step-by-step explanation:
x^2+6x-27=-27
x^2+6x=0
x(x+6)
x=0, x=-6
The solution to (x - 3)(x + 9) = -27 is x=6, the correct option is D.
What is a quadratic equation?A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.
We are given that;
(x - 3)(x + 9) = -27
Now,
If we plug in x = 6 into the equation,
we get: (6 - 3)(6 + 9) = -27.
Simplifying, we get: (3)(15) = -27.
Multiplying, we get: 45 = -27. This is true, so x = 6 is a solution.
The other values of x do not satisfy the equation.
For example, if we plug in x = -9, we get: (-9 - 3)(-9 + 9) = -27. Simplifying, we get: (-12)(0) = -27.
Multiplying, we get: 0 = -27. This is false, so x = -9 is not a solution
Therefore, by quadratic equations the answer will be x = 6.
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https://lh5.googleusercontent.com/nNcMGuld4KbRoBooDf5Liva-NAJyj-IEknnSniAdiBKPNhKWtKqEw2SwN2uQUidgVX1Vh4rDHA=w739
Answer:
The answer is F: 108
Step-by-step explanation:
144 - 108 = 36
108 ÷ 3 = 36
Answer:
giytg8h0ygrubigrfbk
Step-by-step explanation:
Abe Cassidy wants to deposit the following into his savings account: 32 one-dollar bills, 4 five-dollar bills, 32 quarters, 25 dimes, 82 pennies, a check for $43.56, and a check for $122.90. He wants to receive a $50.00 bill in cash. How much will he deposit?
136.22
10.44
$229.78
$179.78
Answer:
179.78
Step-by-step explanation:
Let's count how much Abe has exactly:
32 one-dollar bills: $32
4 five-dollar bills: $20
32 quarters: $8
25 dimes : $2.50
82 pennies : $0.82
First check: $43.56
Second check: $122.90
Total = $229.78
And he wants a $50 bill... so he'll deposit $179.78 ($229.78 - $50).
Final answer:
Abe Cassidy will deposit $179.78 into his savings account.
Explanation:
Let's calculate how much Abe Cassidy will deposit into his savings account, considering he wants to receive a $50.00 bill in cash. To do this, we need to add up all the various types of money he has and then subtract the $50 he wishes to keep in cash.
32 one-dollar bills = $324 five-dollar bills = $2032 quarters = $8 (since 4 quarters = $1)25 dimes = $2.50 (since 10 dimes = $1)82 pennies = $0.82 (since 100 pennies = $1)1 check for $43.561 check for $122.90Adding all these amounts gives us a total of $229.78 before removing the $50 he wants in cash.
To find the amount he will deposit, we subtract the $50 from the total amount:
$229.78 - $50 = $179.78
Hence, Abe Cassidy will deposit $179.78 into his savings account.
6(2x + 3) − 4(5x + 2)
Answer:
-8x+10
Step-by-step explanation:
=(6)(2x)+(6)(3)+(−4)(5x)+(−4)(2)
=12x+18+−20x+−8
Combine Like Terms:
=12x+18+−20x+−8
=(12x+−20x)+(18+−8)
=−8x+10
Answer:
-8x+ + 10
Step-by-step explanation:
Stop deleting my answer scooby Doo, i really need points now
What is 3log2x-(log2(x+4)) written as a single logarithm
Answer:
[tex]\large\boxed{3\log_2x-\log_2(x+4)=\log_2\dfrac{x^3}{x+4}}[/tex]
Step-by-step explanation:
[tex]3\log_2x-\log_2(x+4)\\\\\text{use}\ \log_ab^n=n\log_ab\ \text{and}\ \log_ab-\log_ac=\log_a\dfrac{b}{c}\\\\=\log_2x^3-\log_2(x+4)=\log_2\dfrac{x^3}{x+4}\\\\\text{Domain:}\\\\x>0\ \wedge\ x+4>0\to x>0\ \wedge\ x>-4\\\\\boxed{x>0}[/tex]
Answer:
c
Step-by-step explanation: