Answers
Using soh cah toa and the pythagorean theorem, the final side of 21 was calculated to give tan = 20/21
Related Questions
About what percentage of the data lies within 2 standard deviations of the mean in a normal distribution? 47. 5% 68% 95% 99. 7%.
Answers
The percentage of data that lies within 2 standard deviations of the mean in a normal distribution is 95%.
A normal distribution is a probability distribution that is symmetric around the mean of the distribution. This means that the there are more data around the mean than data far from the mean. A normal distribution is also known as the Gaussian distribution. When depicted on a graph, a normal distribution is bell-shaped.
For a normal distribution:
About 68% of the data lie within one standard deviation of the mean. About 95% of the data lie within two standard deviations of the mean. About 99.7% of the data lie within three standard deviations of the mean.Please find attached an image of a normal distribution. A similar question was answered here: https://brainly.com/question/17101164
Answer:
I believe it is 95%
Step-by-step explanation:
Find the domain of function F defined by
F(x) =1/√|x-1|
Answers
Answer:
Therefore, |x-1|>0
=> (x-1)>0 or - (x-1)>0
=> x > 1 or x < 1
=> (- infinity, 1) U (1, infinity)
Find the surface area of a cylinder with radius 8m and height 5 m
Answers
Answer:
A≈653.45
Step-by-step explanation:
Solution
A=2πrh+2πr2=2·π·8·5+2·π·82≈653.45127
will mark brainliest (NO LINKS OR ANSWERS WITHOUT EXPLANATION)
Answers
Answer:
6x² -xy -35y²
Step-by-step explanation:
Use the distributive property, and combine terms.
(2x +5y)(3x -7y) -2xy
= 2x(3x -7y) +5y(3x -7y) -2xy
= 6x² -14xy +15xy -35y² -2xy
= 6x² +(-14 +15 -2)xy -35y²
= 6x² -xy -35y²
Rafael runs 7 miles in 60 minutes. at the same rate, how many miles would he run in 24 minutes
Answers
Answer:
2.8 miles
Step-by-step explanation:
Speed of Rafael = 7 miles / 60 min = 7/60 miles/min
Time for next run = 24 min
Length of the next run = 7/60 miles/min *24 min = 2.8
A math student goes to an office supply store and purchases a total of 16 spirals and pencils. Each spiral costs $3. 50, and each pencil costs $1. 25. If the student spent a total of $29, how many pencils did the student purchase?.
Answers
The student purchase 12 pencils
Let the total number of pencils purchased be xLet the total number of spirals purchased be yIf a math student goes to an office supply store and purchases a total of 16 spirals and pencils, then;
x + y = 16 .................. 1
If each spiral costs $3. 50, and each pencil costs $1. 25 and the student spent a total of $29, hence;
1.25x + 3.5y = 29 ................. 2
Solve both equations simultaneously
x + y = 16 .................. 1 * 1.25
1.25x + 3.5y = 29 ................. 2 * 1
__________________________________
1.25x + 1.25y = 20.
1.25x + 3.5y = 29
Subtract both equations
1.25y - 3.5y = 20 - 29
-2.25y = -9
y = 9/2.25
y = 4
Substitute y = 4 into equation 1:
x + y = 16
x = 16 - 4
x = 12
This means that the student purchase 12 pencils
Learn more on simultaneous equations here: https://brainly.com/question/15165519
HELPP PLEASEE! pleaseeeeee
Answers
Answer:
a = 14 km
Step-by-step explanation:
The area of a triangle is
A = 1/2 bh where b is the base and h is the height
112.7 = 1/2 ( a) 16.1
112.7 = 8.05a
Divide each side by 8.05
112.7/8.05 = a
14 =a
a = 14 km
2/3x=21 for x
the 2/3 is supposed to be a fraction
I'm bad with fractions and I need help x)
Answers
Answer:
x = 14
Step-by-step explanation:
21 ÷[tex]\frac{2}{3}[/tex] = 14
Answer:
x = 31 1/2
Step-by-step explanation:
- Isolate x by multiplying 2/3 on each side, cancelling out the one of its original placement
- You can't divide by a fraction, so KCF (Keep Change Flip):
x = 21 * 3/2
= 63/2 or 31 1/2
Pls help fast i need this done
-Angle ACB is bigger than angle GDE
-Angle ACB is smaller than angle GDE
-Angle ACB is the same size as angle GDE
-There isn't enough information to decide
Answers
blank % of $10 = $5
thank u for anyone who helps!!
Answers
Answer:
50%
Step-by-step explanation:
Because you don't know the percentage, you can do 5/10, and you will get 1/2, or 0.5. 1/2 is 50%, so the answer would be 50%
Please help me :)
ty ty
Answers
Answer:
the slope is stepper and the line is shifted up
May I please receive help?
Answers
Answer:
a=√2, c=4√3
Step-by-step explanation:
Recall that in a 45-45-90 triangle, the side lengths are the same but the hypotenuse is the side length times the square root of 2. Therefore, a=2/√2=√2.
Recall that in a 30-60-90 triangle, the shorter side length is x, the longer side is x√3, and the hypotenuse is 2x. Therefore, c=4√3
Which of the following is a function equivalent to f(x) = 3(1. 7)4x? f(x) = 25. 06x f(x) = 3(8. 35)x f(x) = 3(8. 25x) f(x) = 487. 97x.
Answers
The correct equivalent function can be found by using exponent rule.
The correct option is [tex]f(x)=3(8.35^x)[/tex].
Given:
The given expression is as follows,
[tex]f(x)=3(1.7)^{4x}[/tex]
Write the exponent rule.
[tex]a^{mn}=(a^m)^n[/tex]
To simplify the given expression apply the exponent rule.
[tex]f(x)=3(1.7)^{4x}\\f(x)=3(1.7^4)^x[/tex]
Using calculator find the value of [tex]1.7^4[/tex].
[tex]f(x)=3(1.7^4)^x\\f(x)=3(8.35)^x\\f(x)=3(8.35^x)[/tex]
Thus, the correct option is [tex]f(x)=3(8.35^x)[/tex].
Learn more about exponent rule here:
https://brainly.com/question/2254060
The conditional relative frequency table was calculated by row using data from a survey of one station’s television programming. The survey compared the target audience with the type of show, either live or recorded, over a 24-hour time period. A 4-column table with 3 rows titled television programming. The first column has no label with entries adult, children, total. The second column is labeled live with entries 0. 625, 0. 5, nearly equal to 0. 583. The third column is labeled recorded with entries 0. 375, 0. 5, nearly equal to 0. 417. The fourth column is labeled total with entries 1. 0, 1. 0, 1. 0. Which is the best description of the value 0. 375 in the table? Given that the program was targeted at adults, there is a 37. 5% chance that it was recorded. Given that the program was recorded, there is a 37. 5% chance that it was targeted at adults. 37. 5% of the programs are targeted at adults. 37. 5% of the programs are recorded.
Answers
The conditional relative frequency presents the result of the survey that conveys information about the programming and the audience.
The best description of the value 0.357 in the table is; Given that the program was targeted at adults, there is a 37.5% chance that it was recorded.Reasons:
The table is presented as follows;
[tex]\begin{tabular}{|c|c|c|c|}&Live&Recorded&Total\\Adult&0.625&0.375&1.0\\Children&0.5&0.5&1.0\\Total&\approx 0.583&\approx 0.417&1.0\end{array}\right][/tex]
Based on the given table, we have that the programs are categorized based on the intended audience.
Therefore, the 0.375, indicates that 37.5% of the program targeted at adults are recorded.
Therefore, the correct option is;
Given that the program was targeted at adults, there is a 37.5% chance that it was recorded.
Learn more about relative frequency table here:
https://brainly.com/question/8470699
https://brainly.com/question/3712144
Answer:
A
Step-by-step explanation:
its a
Classify the percentages based on their value.
50% of 40
20% of 150
25% of 80
12% of 250
60% of 50
10% of 200
Answers
a=20
b=30
c=20
d=75
e=30
f=2
If f(x) = 1 - X, which value is equivalent to Ol?
O o
1
2
V-1
Answers
The answer to your question is 1
The half life of a radioactive substance is 10 years. If 64 grams are placed in a
container, how much will remain after 50 years?
Answers
Answer:
2 grams
Step-by-step explanation:
50 years is 5 half lives as 1 half life is 10 years.
64 divide 2 = 32-1 half life
32 divide 2 =16-2nd half life
16 divide 2 = 8-3rd half life
8 divide 2 = 4-4th half life
4 divide 2 = 2-5th half life
This means we will have 2 grams left of the radioactive substance after 50 years.
Need help with this math problem
Answers
Answer:
A)
Step-by-step explanation:
Given expression:
[tex] \boxed{\mathsf{c = 15 + am}}[/tex]
subtracting 15 from both sides, and combining like terms on the RHS
[tex] \implies\mathsf{c - 15 = (15 - 15)+ am}[/tex]
Dividing both sides by a
[tex] \implies\mathsf{ \frac{c - 15}{a} = am \times \frac{1}{a} }[/tex]
a On the RHS gets canceled for being present in both Numerator as well as denominator, and were left with the following equation:
[tex] \implies\mathsf{ \frac{c - 15}{a} = m }[/tex]
helpppppppppppppppppppppppppppppppppppppppppppp
Answers
Answer:
18/66 (or 27%)
Step-by-step explanation:
6/11 chance of pink and 3/6 chance of odd number
6/11 * 3/6 = 18/66
1943 divided by 67.Show steps please.
Answers
Answer: Long Division Calculator with Decimals
look this up see if it helps
Step-by-step explanation:
Solution:
0029
67| 1943
-0
19 (bring down the 9)
-0
194 (bring down the 4)
− 134
603 (bring down the 3)
603
0
can someone plz help with math?!
Answers
Answer:
1. L = 3D +59
2. 158 miles
Step-by-step explanation:
For the second part:
Since each day 3 miles of the road is being added, we can simply multiply the number 33 by 3, getting 99. If the road started with 59 miles, we need to add 59 to 99, getting 158 miles.
A baby gains 11 pounds in its first year of life. The baby gained 45 pounds during the first four months and 3 pounds in
4
its second four months. How much did the baby gain in the last four months?
o 3 apo
pounds
O
1
3
2 pounds
O O
4 pounds
O 5 pounds
Answers
Answer:
4 pound is the right answer
Mark me as a brilliant
if 10 servings are 4 ounces how many ounces is 7 servings
Answers
Answer:
2.8 ounces
Step-by-step explanation:
4/10= 0.4
0.4*7= 2.8 ounces
Answer:
2.8 ounces per 7 servings.
Step-by-step explanation:
set a proportion
10 servings 7 servings
---------------- = ---------------
4 ounces x ounces
7/10 = 0.7
4 x 0.7 = 2.8
x = 2.8
While flying against the wind, the plane covered 1800 km in 2 hours and 40 minutes. On the return flight it spent 16 minutes less because the plane was moving on the direction of the wind. What was the speed of the wind and the speed of the plane?
Answers
Answer:
PLANE SPEED --
While flying against the wind - 675 km/h
While flying along with the wind - 750 km/h
WIND SPEED --
Speed of the wind - EXPLANATORY LOOK AT ABOVE DATA
Step-by-step explanation:
If you need the explanation, just comment yes :)
It's a bit long, so I'm not sure if you just wanted the answer or the whole step-by-step explanation.
Mr.Keaton planted 918 cornstalks there are 9 cornstalks in each row how many rows of corn did he plant
Answers
Answer:
I think 102 rows of corn
Step-by-step explanation:
918 ÷ 9 = 102
I promise y’all this is the last question I need to be answered
Answers
Answer:
sorry there's no results
Step-by-step explanation:
just skip it
Help please, and explanation.
According to my teacher the answer is not 1/4.
Answers
Answer:
1/9
Step-by-step explanation:
There are 3 even numbers. 2,4, and 6. There is a 1/3 chance of rolling one on each dice.
So 1/3*1/3=1/9
what is equivalent to
−−(2+5)−(3−7)?
Answers
Answer: [tex]\frac{-6}{2}, \frac{-9}{3} , \frac{-12}{4}[/tex]etc
Step-by-step explanation: -(2 + 5) - (3 - 7) = -3 To turn -3 to a fraction put 1 as it's denominator so it's [tex]\frac{-3}{1\\}[/tex]. [tex]\frac{-3}{1}[/tex] 's equivalent frations are [tex]\frac{-6}{2}, \frac{-9}{3} , \frac{-12}{4}[/tex] and etc.
URGENT! WILL MARK BRAINLIEST!!
Write an inequality that represents the graph.
(it’s #4)
Answers
Hope this helps! :)
y > 2
Explanation:
- The dot is open, indicating that the inequality symbol must be greater than or less than (nothing with equal too).
- Since the graph is shaded to the right, that would mean that the inequality symbol would be greater than (>)
- The dot is placed at the value 2, therefore the solutions to the inequality would be all numbers greater than 2, or y > 2
Hope that helped!
3⋅ (3⁴) = 3x=
What does x equal to?
Answers
81 = 3x= 27
So x means 27
