Answer:
D. 100
Step-by-step explanation:
1. Find the z-score: 165-176/11.4 = -1.2
2. Find the percentage of the z-score. Here it's 16.85%
3. Because we are searching for the amount of members that weigh MORE than 165 pounds and not LESS, we need to find the greater percentage by subtracting 16.85% from 100% which is 83.15%. This is the percentage of people that weigh more than 165 pounds.
4. Multiply the percentage by the number of members: 83.15%*120 = 99.78
5. Round it to a whole number because someone can't be 0.78 of a person. You get 100 members.
Also, I took the test :)
23. The mean weight of trucks traveling on a particular section of 1-475 is not known. A state highway inspector needs an estimate of the mean. He selects a random sample of 49 trucks passing the weighing station and finds the mean is 15.8 tons, with a standard deviation of the sample of 4.2 tons. What is probability that a truck will weigh less than 14.3 tons
Answer:
0.3594 = 35.94% probability that a truck will weigh less than 14.3 tons
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean is 15.8 tons, with a standard deviation of the sample of 4.2 tons.
This means that [tex]\mu = 15.8, \sigma = 4.2[/tex]
What is probability that a truck will weigh less than 14.3 tons?
This is the pvalue of Z when X = 14.3. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{14.3 - 15.8}{4.2}[/tex]
[tex]Z = -0.36[/tex]
[tex]Z = -0.36[/tex] has a pvalue of 0.3594
0.3594 = 35.94% probability that a truck will weigh less than 14.3 tons
i will mark you brainless if you can solve this
Answer:
1.cube
6faces
2.i can't understand it what is it but I think rectangle
3.i think it's pyramid if it is it has
5 faces
3. cone
1 face
WILL MARK BRAINLY FOR FIRST ANSWER
Answer:
(5,-6)
Step-by-step explanation:
Diego decided to paint his bedroom walls. His room is 12 feet long 11 feet wide, and 9 feet tall.how many square feet will Diego be painting
Answer:
396
Step-by-step explanation:
if his walls are 11 feet wide and 9 feet tall multiply 11 times 9 which equals 99 times for which equals 396
What is the value of q?
s
O 4,5
O2/14
s
O 20/5
R
r
O 64/5
4
T
10
Answer:
the value is 36
Step-by-step explanation: so you add
The value of q is 36 in the equation q+9=45
What is Equation?Two or more expressions with an Equal sign is called as Equation.
The given equation is q+9=45
q plus nine equal to forty five
We have to find the value of q
Plus is the operator
q is the variable
Subtract 9 from both sides
q=45-9
q=36
Hence, the value of q is 36 in the equation q+9=45
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Find the value of q in equation q+9=45
Could I get some help with this app
Answer:
you but question you don't understand and some one will help you with it can take a bit though
Step-by-step explanation:
PLZ ANSWER I WILL MAKE YOU THE BRAINLIEST NO FAKE LINKS
Answer:
b. At Field Day,...
Step-by-step explanation:
In order to solve for the answer to the problem, one would have to calculate 1/2 divided by 5. So, b. is your answer.
I would appreciate Brainliest, but no worries.
A probability model includes p(red)=2/7 and P(blue)=3/14. Select all the probabilities that could complete the model.
Answer Key:
A: P(green)= 2/7, P(yellow)=2/7
B: P(green)=3/8, P(yellow)=1/8
C: P(green)=1/4 P(yellow)=1/4
D: P(green)= 5/21 Pyellow)= 11/21 E. P(green)= 3/7 P(yellow)=1/14
Answer:
The answer is "Option D".
Step-by-step explanation:
In this question, the shape of the model is not declared that why we assume that it has four sides in which two sides are given that is:
[tex]\to P(red)=\frac{2}{7} \\\\\to P(blue)=\frac{3}{14}[/tex]
other probabilities are:
[tex]\to P(green)= \frac{5}{21} \\\\\to P(yellow)= \frac{11}{21}[/tex]
-2 is the ________ of 2
Answer: -2 is the numerical opposite of the number 2. Any numbers opposite is it's negative form. (except for 0 due to there being no opposite for something that is not negative or positive.)
Given that v = (5,-4,4) and w = (9,-2,7) evaluate v • w.
A. 81
B. 19
C. (45,8,28)
D. (-40,-16,-8)
Answer:
81
Step-by-step explanation:
Evaluating v • w
Recall: Given vectors a and B in Cartesian plane, x, y and z
vector a = [ax ay az] and b = [bx by bz]
The dot product is :
a•b = axbx + ayby + azbz
Using the relation above,
v • w = (5*9) + (-4*-2) + (4*7)
v • w = 45 + 8 + 28
v • w = 81
Hence, v • w = 81
I REALLY NEED HELP pls I didn’t study at all
Answer:
ok so the numbers are 21%, 3/20, 25.6%, 2.24, and .24 we are ordering from least to greatest
Step-by-step explanation: First we need to figure out what 3/20 is and its 0.15 so 3/20 comes first then 0.24 then 2.24 then 21% then 25.6%
what is 5.706 correct to 2d.p
5.71 that's it! no more I hope I helped in any thing
Devora explored a secret cave. 48\text{ m}48 m48, start text, space, m, end text from the entrance, she found an empty chest with a map drawn on it. The map showed treasure buried 95\text{ m}95 m95, start text, space, m, end text from the entrance to the cave. From the treasure, the map showed a 30\degree30°30, degree angle between the chest and the entrance, as shown below. Devora faced the entrance, then turned a certain number of degrees to her left and walked until she got to the treasure.
Answer:
82°
Step-by-step explanation:
help me with this pls
The answer is 144 cm squared
225 - 81 = 144 (cm squared)
I NEED HELP FAST> THIS PROBLEM IS SO CONFUSING!! the ^ mean exponents
after simplifying, what will x be equivalent to? (a^4)^6=a^x
Answer:
x will be equivalent to 24
Step-by-step explanation:
apply the multiplication rule to the exponents in (a^4)^6
4 times 6= 24, so (a^4)^6 is equivalent to a^24
What point is 4 points from m
Answer:
A
Step-by-step explanation:
Have a nice day :)
Answer:
point A
Step-by-step explanation:
counting m 4 steps down to A
Draw the two-dimensional shape
that makes up the faces of this
solid shape.
Answer:
like this?
Step-by-step explanation:
(6 points) which answer describe the shape below? Check all that apply
Answer:
(E) square
Step-by-step explanation:
because it's all side's are equal
A, B, C, D, E, F
A square is all of them :D
please help i am giving away brainliest
What would be the volume of this solid if the height were halved and the other dimensions were reduced proportionally? Round to the nearest whole number.
A. 13 cm3
B. 26 cm3
C. 15 cm3
D. 21 cm3
no dam links
Answer:
The height for the original part is 10 cm
Never mind that the solid is standing at the angle of 60 degrees.
If you cut the bottom of the solid at the angle of 30 degrees, and put that part on the top of the solid,
the height is going to be exactly 10 cm.
So, we have... V = (10 * 4 * 3) / 8
or V = 5 * 2 * 1.5
Step-by-step explanation:
Answer:c
Step-by-step explanation:
Which statement about this figure is true?
Answer:
We need the figure
Explanation:
Can't describe a figure with no knowledge on what is it like.
Answer:
It has no rotational symmetry
Will you find the volume for 30 points?
Answer:
56
Step-by-step explanation:
Answer:
45.5
Step-by-step explanation:
5x7=35
3/2x3/2 = 4.5
7-3=4
4/2x3/2=6
35+4.5+6= 45.5
What is the volume of this
find the product 3X×15X²
Answer:
45x³
Step-by-step explanation:
Given
3x × 15x²
= 3 × 15 × x × x²
= 45 × x³
= 45x³
Answer:
45x^3
Step-by-step explanation:
Multiply the digits that is 15 x 3
Then multiply the Variable x^2 and x
variables are added when multiplied keep this rule in mind always
ILL GIVE BRAINLEST- select each classification that describes the triangle shown.
Answer:
Obtuse, isosceles
Step-by-step explanation:
Classify. Two same length sides make it isosceles
A larger angle than 90° make it obtuse
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
On a map, the distance between Los Angeles, CA and San Francisco, CA is 51.5 cm. What is the actual distance if the map scale is 1 cm:8 mi.?
A) 4 mi
B) 4.12 mi
C) 41.2 mi
D) 412 mi
Answer:
it's D) (412 mi) trust me
Step-by-step explanation
The actual distance if the map scale is 1 cm:8 mi is 412 meters.
We have given that,
On a map, the distance between Los Angeles, CA and San Francisco, CA is 51.5 cm.
We have to determine
The actual distance if the map scale is 1 cm:8 mi.
What is the actual distance?
Distance is a numerical measurement of how far apart objects or points are. In physics or everyday usage, the distance may refer to a physical length or an estimation based on other criteria.
Therefore the total distance is 412 meters.
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What are some advantages of different ways to solve an equation?
Answer:
When you have different forms of equations you can then see equivalencies. the different forms of equations can then be solved, each in its own manner. meaning sometimes you can not solve one way because the equation is nested within another, a function in a function. F(x)=f(g(x)) Then you can work the problem around to different forms until you get your solution
7. Lines that intersect forming a square corner is called
a. Parallel lines b. Intersecting lines c. Perpendicular lines
Answer:
c. Perpendicular lines
Step-by-step explanation:
grand pa gave $35 to linda and diane. linda received $19. find the ratio of the amount of money linda received to the amount of money diane received
solve for x i will give brainlest
Answer:
[tex] \displaystyle x = 3.97[/tex]
Step-by-step explanation:
we are given a exponential equation
[tex] \displaystyle {3}^{x} = 78[/tex]
we want to figure out x
remember that,
[tex] \displaystyle \log_{a}( {a}^{c} ) = c[/tex]
thus
take [tex]\log_3[/tex] both sides:
[tex] \displaystyle \log_{3}( {3}^{x} ) = \log_{3}(78) [/tex]
use the formula:
[tex] \displaystyle x = \log_{3}(78) [/tex]
by using calculator
[tex] \displaystyle x = 3.97[/tex]
What is the measure of the angle shown? Will mark brainliest!
Answer:
142
Step-by-step explanation: