Please answer all
1.Let y be a random variable that has the standard normal distribution. If P(y
Select one:
a. 0.8416
b. 0.5244
c. 0.1584
d. -0.5244
2.Let y be a random variable that has the standard normal distribution. If P(-a
Select one:
a. 0.3255
b. -0.3255
c. 0.6745
d. 0.000
3.Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. If 15 students are randomly selected, find the probability that the mean of their test scores is at most 40.
Select one:
a. 0.4749
b. 0.5250
c. 0.0251
d. 0.9749
4. Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. What is the probability that a randomly selected student get at most 40 in the test?
Select one:
a. 0.6935
b. 0.3065
c. 0.6730.
d. 0.3270
5. Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. What is the probability that a randomly selected student get a score from 36 to 40 in the test?
Select one:
a. 0.1981
b. 0.1751
c. 0.1684
d. 0.8249
6.For a given x score, its standardized score z = (x - μ)/σ is
Select one:
a. the probability between that score and the mean
b. negative for values below the mean
c. the number of means that score is from the standard deviation
d. not changed by the addition of one more score to the data set
7.Scores on a Math test are normally distributed with a mean of 35.6 and a standard deviation of 8.7. What is the probability that a randomly selected student get at least 37 in the test?
Select one:
a. 0.4588
b. 0.5412
c. 0.4361
d. 0.5639
8.For the standard normal distribution,
Select one:
a. P(0< z <2) = 2 P(0< z <1)
b. P(0< z < 1) = 0.3413
c. P(z = 1.00) = 0.3413
d. P(-1 < z < 0) = -P( 0< z <1)
9.Let y be a random variable that has the standard normal distribution. The value of P(-1.5 < y < 0) is
Select one:
a. 0.5668
b. 0.4332
c. 0.9332
d. -0.4332
10.Let y be a random variable that has the standard normal distribution. The value of P(y<-1.5) is
Select one:
a. 0.0668
b. 0.4332
c. -0.0668
d. 0.9332
Answer:
there was many questions an this much questions we don't have time
Helps pls...... help help help
Answer:
IQR = 10
Step-by-step explanation:
1. Find the median (middle data point.)
2. Find the median of the upper quartile (70 - 80.)
3. Find the median of the lower quartile. (60 - 70.)
4. Subtract the lower quartile from upper quartile.
1. median of the data = 70
2. median of Q2 = 75
3. median of the Q3 = 65
4. 75 - 65 = 10
IQR = 10
List three factors that must be considered when designing and building a house? Describe how each factor can influence the design and the building of the house.
I will be giving brainiest to correct and best explained answer! :)
Step-by-step explanation:
I would say the area its getting built. imagine wanting to build a house but you can't dig the sewer (if thats the spelling) pipes bc the area you want doesn't have any water or something like that. definitely money. without it, you can't do anything, you can't buy materials or even hire people to help you because you cannot tell me that you can build a house on your own. Another I would say is Labor cause like I said, if you ain't got nobody to help you, you're probably going to take a few years or more. so if you want to build a house in an area where there is a few architects and designers, you're just going to have to suck it up and get what you get.
Charls invested $140. She earned a simple interest of 3% pee year on the initial investment. If no money was added or removed from the investment, what was the amount of interest Charls received at the ned of two years?
Answer:
$148.4
Step-by-step explanation:
140 times 0.03=4.2
4.2=8.4
140+8.4=148.4
33 miles per gallon is approximately equal to how
many kilometers per liter? (Use 1 kilometer =
0.62 mile and 1 gallon = 3.79 liters.)
Answer:
14.04 km/L
Step-by-step explanation:
I km = 0.62 mile
or
1 mile = 1/0.62 km
1 gallon = 3.79 liters
So, 33 miles per gallon is:
= [tex]\frac{33*(1/0.62)}{3.79}[/tex]
= 14.04 km/L
Hope this helps you. Do mark me as brainliest
33 miles per gallon is approximately equal to 14.01 kilometers per liter
What is conversion?"Conversion is the process of changing the value of one form to another."
For given example,
We know, 1 kilometer = 0.62 mile and 1 gallon = 3.79 liters
We need to convert 33 miles per gallon.
1 mile = 1.61 km
1 gallon = 3.79 liters
⇒ 33 × (1.61/3.79) = 14.01 kilometers per liter
Therefore, 33 miles per gallon is approximately equal to 14.01 kilometers per liter
Learn more about measurements here:
https://brainly.com/question/18828615
#SPJ2
(-1/4) divided by 2/3 times (-1/2)
Answer:
Step-by-step explanation:
3/16
Answer:
3/16
Step-by-step explanation:
-1/4*3/2*-1/2
1/8*3/2
3/16
Use the sequence {0.3, 0.03, 0.003, 0.003, ... } to answer the question.
What is the explicit rule that describes the sequence?
1 an = 0.3(0.01)(n-1)
2 an = 0.3(0.001)(n-1)
3 an = 0.3(10)(n-1)
4 an = 0.3(0.1)(n-1)
Answer:
2 an ? Im pretty sure hope it helped
Answer:
an = 0.3(0.1)^(n - 1)
Step-by-step explanation:
so it's number 4 ;)
The radius of a circle is 20 cm. Find its circumference in terms of Pi
Based on the calculations, the circumference of this circle in terms of Pi is equal to [tex]40\pi\;cm[/tex].
How to calculate the circumference of a circle.Mathematically, the circumference of a circle is given by the formula:
[tex]Circumference = 2\pi r[/tex]
Where:
r is the radius of a circle.Given the following data:
Radius of a circle = 75 in.
[tex]\pi = 3.14[/tex]
Substituting the given parameters into the formula, we have;
[tex]Circumference = 2\pi \times 20\\\\Circumference = 40\pi\;cm[/tex]
Read more on circumference here: brainly.com/question/14478195
Help please ASAP....
What is the simplified form of i^15?
O A. -1
O B. 1
O C. -i
O D. i
Answer:
the answer is B........
What is 600 minus 258?
Answer:
342
Step-by-step explanation:
Answer:
342
Step-by-step explanation:
600 - 258 = 342
Note:
Please mark as Brainliest! <3
plz help?
Find the value of x in this proportion.
621=10x
Answer:
x = 62.1
Step-by-step explanation:
Note the equal sign in this equation, what you do to one side, you do to the other. Isolate the variable, x, by dividing 10 from both sides of the equation:
[tex]621 = 10x\\\\\frac{621}{10} = \frac{10x}{10} \\\\x = \frac{621}{10} \\x = 62.1[/tex]
Answer:
x = 62.1
Step-by-step explanation:
Part A choose the inequality and solution to represent the number of cans, c, that Xander must still correct.
Answer:
Part A:
C.) c + 64 ≥ 120; c ≥ 56
Part B:
Graph B
Step-by-step explanation:
Part A:
Since the least number of cams she could collect is 120, it therefore means the number of cans must be ≥ 120
If he has already collected 64, and c represents the number of cans that she must still collect, therefore we would have the following inequality,
c + 64 ≥ 120
thus,
c ≥ 120 - 64
c ≥ 56
Part B:
Since c ≥ 56, it means that the possible value of c would range from 56 and above. The graph would start from 56, and point towards our right since c is greater than or equal to 56.
The graph is B.
What is 9,167.364 in expanded form?
Answer:
9,000+100+60+7+.3+.06+.004
Step-by-step explanation:
1. What concept does this picture illustrate?
A. radiation
B. conduction
c . contraction
D. convec
Answer:
c
Step-by-step explanation:
Answer:
Convection.
Step-by-step explanation:
Convection is where warm air rises and cool air falls. This picture is an example of Convection.
Need help ASAP
questions in the pics i have sent
Answer:
Step-by-step explanation:
Picture 1
In right triangle ABC,
Side AB is the opposite side of angle C.
Picture 2
In triangle MKL,
tan(∠M) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
= [tex]\frac{KL}{KM}[/tex]
= [tex]\frac{15}{8}[/tex]
Option (1) is the answer.
Picture 3
In ΔXYZ,
sin(∠Z) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{XY}{XZ}[/tex]
For the length of XY we will apply Pythagoras theorem in ΔXYZ,
XZ² = XY² + YZ²
XY² = XZ² - YZ²
= (40)² - (32)²
XY = √576
= 24
sin(Z) = [tex]\frac{24}{40}[/tex]
sin(Z) = [tex]\frac{3}{5}[/tex]
Picture 4
In right triangle DEF,
Cos(D) = [tex]\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]
= [tex]\frac{EF}{DF}[/tex]
= [tex]\frac{75}{72}[/tex]
= [tex]\frac{25}{24}[/tex]
Picture 5
In ΔABC,
tan(63°) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
tan(63°) = [tex]\frac{BC}{AB}[/tex]
AB = [tex]\frac{BC}{\text{tan}(63)}[/tex]
AB = [tex]\frac{8}{\text{tan}(63)}[/tex]
AB = 4.0762 ≈ 4 m
Option (3) will be the answer.
if the diameter of a circle is 65 what is the area
Answer:
(4225/4)pi units^2
Step-by-step explanation:
So we need to know the area of a circle formula to find the answer to this question
the formula is A = r^2(pi)
So we have the diameter but we need the radius. The radius is half the diameter so r = 65/2
Now we can plug the radius into the area formula
(65/2)^2*pi =
(4225/4)pi units^2
Answer:
3318.31
Step-by-step explanation:
write the ratio 75g:3kg in its simplest form
What is tan K? i need help ..
[tex] \huge \purple{\tt{Answer:}} [/tex]
[tex]\sf {tan~K} = \sf{{\dfrac{opposite~side}{adjacent~side}}} =\sf{{\dfrac{24}{51}}} [/tex]
None of the answers are correct
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Answer lit
Step-by-step explanation:
22
g(x) =
*+
+7
What is the average rate of change of g over the interval —2, 4):
Answer:
[tex]Rate = 1[/tex]
Step-by-step explanation:
Given
[tex]g(x) = x + 7[/tex]
Interval: (-2,4)
Required
Determine the average rate of change
This is calculated using:
[tex]Rate = \frac{g(b) - g(a)}{b-a}[/tex]
Where:
[tex](a,b) = (-2,4)[/tex]
So, we have:
[tex]Rate = \frac{g(4) - g(-2)}{4-(-2)}[/tex]
[tex]Rate = \frac{g(4) - g(-2)}{4+2}[/tex]
[tex]Rate = \frac{g(4) - g(-2)}{6}[/tex]
Calculate g(4) and g(-2)
[tex]g(4) = 4 + 7 = 11[/tex]
[tex]g(-2) = -2 + 7 = 5[/tex]
So:
[tex]Rate = \frac{11 - 5}{6}[/tex]
[tex]Rate = \frac{6}{6}[/tex]
[tex]Rate = 1[/tex]
Hence, the average rate of change is 1
27a3 - 863 - 64c9- 72abc
Answer:
So, I'll give it my best shot. Here it is factored:
Factor the polynomial.
− ( 64 c ^9 + 72 a b c − 27 a^ 3 + 863 )
It's the same thing simplified, just without the parentheses.
Step-by-step explanation:
Hope this helps!
have a nice day
Sean runs 2/3 of a mile in 10 minutes. at this rate, how many miles can Sean run in 30 minutes? Explain how you found this answer. Please I need it quick!
Answer:
2 miles.
Step-by-step explanation:
In this case, we would multiply the numerator by 3 since we know that it takes him 10 minutes to run 2/3 of a mile. So, 2x3 = 6. Which gives us 6/3. Simplified that would be 2 miles. Hope this helps!
ANSWER ASAP AND I WILL MARK YOU BRANLIEST. Tomas makes balloon sculptures at a circus. In 96 minutes, he uses 160 balloons to make 32 identical
balloon sculptures.
Part 1 out of 3
How many minutes does it take to make one balloon sculpture? How many balloons are used in one
sculpture?
It takes him
minutes to make one balloon sculpture.
balloons are used in one sculpture.
Part 2 of 3
What is Tomas unit rate for balloons used per minute? Round to the nearest Tenth
Answer:
Step-by-step explanation:
(96 minutes)/(32 sculptures) = (96/32 minutes)/sculpture = (3 minutes)/sculpture
It takes 3 minutes to make one sculpture.
(160 balloons)/(32 sculptures) = (160/32 balloons)/sculpture = (5 balloons)/sculpture
It takes 5 balloons to make one sculpture.
(160 balloons)/(96 minutes) ≈ 1.7 balloons used per minute.
Answer:
(96 minutes)/(32 sculptures) = (96/32 minutes)/sculpture = (3 minutes)/sculpture
It takes 3 minutes to make one sculpture.
(160 balloons)/(32 sculptures) = (160/32 balloons)/sculpture = (5 balloons)/sculpture
It takes 5 balloons to make one sculpture.
(160 balloons)/(96 minutes) ≈ 1.7 balloons used per minute.
Step-by-step explanation:
Why am i helping people well i literally need to do school rn. SMH
HELP ASAP PLS! The ratio of bows to headbands of Monique’s hair accessories is 8:4. Select all true statements.
A. For every 8 hair accessories, 4 are bows.
B. For every 8 bows, there are 4 headbands.
C. For every 8 headbands, there are 4 bows.
D. For every 8 hair accessories, 4 are headbands.
E. For every 12 hair accessories, 4 are headbands.
The ingredients for your skillet brownie cost $2. Your want your food cost for
this item to be 30% or lower. What's the lowest price you can charge? Round
to the nearest cent.
the graph of which function will contain the point(2,10)
Answer:
point (2 , 10)
Y= 5X
10 = 5(2)
10= 10
120 coins what is the ratio if 2/6 is nickels and 2/6 are dimes and the rest is quarters. What is the ratio of nickels to dimes to quarters?
Hi there!
If the nickels and dimes ratioe are both 2:6, then the quarter is also 2:6.
The total of of all together is also 6:6 and 6:6 is also 120 coins.
120 divide by 3 different kinds of coins are 40.
This means that there are 40 of 1 coin out of 3 different kinds of coins. What I really mean is that each coins all have 40 each...
Therefore, the ratios of nickels to dimes and to quarters are 40:40:40...
QUICK 2 YES/NO QUESTION SURVEY FOR MATH CLASS (BASICALLY FREE POINT)
1) Do you like cats(yes/no)
2) Do you like dogs(yes/no)
Ya can answer by reply btw
Answer:
yes
yes
:D
Step-by-step explanation:
Answer:
1) Yes
2) No
Explanation:
I need to type at least 20 words to submit
PLSS HELP DUE TMR PLSS 25 POINTS I BEGG
Answer:
7tifi6diyd8ydiy
Step-by-step explanation:
ust75dutsjtsutxxhtshfxhrsfhzyrahrsursusutsutsuttus5usutsutxtu