Answer:- 8
Step-by-step explanation:
-4 + 4(3)/ -4+3
-4 +12 / -1
8/-1
The duration of a professor's class has continuous uniform distribution between 49.2 minutes and 55.5 minutes. If one class is randomly selected and the probability that the duration of the class is longer than a certain number of minutes is 0.468, then find the duration of the randomly selected class, i.e., if P ( x > c )
Answer:
The duration of the randomly selected class is 52.6 minutes.
Step-by-step explanation:
The random variable X is defined as the duration of a professor's class.
It is provided that, [tex]X\sim Unif(49.2, 55.5)[/tex].
The pdf of X is:
[tex]f_{X}(x)=\frac{1}{55.5-49.2};\ 49.2<X<55.5[/tex]
It is provided that the probability that the duration of the class is longer than c number of minutes is 0.468.
That is, P (X > c) = 0.468.
Compute the value of c as follows:
[tex]P(X>c)=0.468\\\\\int\limits^{55.5}_{c}{\frac{1}{55.5-49.2}}=0.468\\\\\frac{1}{6.3}\times [x]^{55.5}_{c}=0.468\\\\55.5-c=2.9484\\\\x=52.5516\\\\x\approx 52.6[/tex]
Thus, the duration of the randomly selected class is 52.6 minutes.
Olivia wants to cut off 3 3/4inches from a piece of string. She has already cut off
2 9/16 inches from the piece of string. How much more string should she cut off?
Answer:
1 3/16 inches
Step-by-step explanation:
3 3/4 = (3+12) / 4
2 9/16 = ( 9+ 32) / 16
15 / 4 - 41/ 16 make the denominators equal
15 × 4 / 4×4 - 41/ 16
= 60/16 - 41/16
= 19/16 convert it to Fractional number
= 16 + 3 / 16 = 1 3/16
Which statement is TRUE for the given triangles?
A)
The triangles are similar because the ratios of the corresponding sides are
the same.
B)
The triangles are not similar because they are not the same size.
C)The triangles are not similar because they are not equilateral
D)
Similarity cannot be determined because angle measurements are not
given
Answer:
we need the pic to answer it
Step-by-step explanation:
Answer:
I have no idea
Step-by-step explanation:
Katrina stacked 2 blocks on top of each other. The height of the first block
was 3 2/3 inches. The height of the second block was 2 /2 inches. What was
the height of the stack of | blocks? Must convert to mixed number
Answer:3 2/3
Step-by-step explanation:3 2/3 + 2/2=3 2/3
PLZZZZZ HELP ME WHOEVER ANSWERS FIRST I WILL MAKE BRAINLIESTTTT
Answer:
2
Step-by-step explanation:
Answer:
Step-by-step explanation:
ok i want brainly ut idk the answer jk the 1st one is 60 and idk the rest
PLEASE HELP QUICK
What is the simplified expression for the expression below?
–1(2x + 3) – 2(x – 1)
–4x + 1
–4x – 2
–4x + 2
–4x – 1
Answer:
-4x - 1
Step-by-step explanation:
i used a calculator and got that
There are 39.37 inches in 1 meter. How many inches are in 8 · 104 meters?
Step-by-step explanation:
[tex]1meter = 39.37inches \\ 8.104meters = (39.37 \times 8.104)inches \\ = 319.05448inches[/tex]
There are [tex]3.1496\cdot 10^6[/tex] inches in [tex]8\cdot 10^4[/tex] meter.
Important information:
There are 39.37 inches in 1 meter.Convert meter to inches:Using the given information,
1 meter = 39.37 inches
Using this conversion, we get
[tex]8\cdot 10^4[/tex] meter = [tex]39.37\times (8\cdot 10^4)[/tex] inches
[tex]8\cdot 10^4[/tex] meter = [tex]39.37\times 80000[/tex] inches
[tex]8\cdot 10^4[/tex] meter = [tex]3149600[/tex] inches
[tex]8\cdot 10^4[/tex] meter = [tex]3.1496\cdot 10^6[/tex] inches
Therefore, there are [tex]3.1496\cdot 10^6[/tex] inches in [tex]8\cdot 10^4[/tex] meter.
Find out more about 'Convert meter to inches' here:
https://brainly.com/question/2284603
solve for x (19×-18) (7×+1) (10×-9)
Answer:
use a calculator and thank me lator
Step-by-step explanation:
that rhymed
1. Write 1/5 as a decimal
2. Write 1/5 as a percent
3. Write 10% as a fraction
4. Reduce 35/100 to lowest terms
5. Write 35/100 as a percent
6. Write 8/20 as a percent
7. Write 8/20 as a decimal
Answer:
1.5
1.5%
10/0
7/20
35.1%
8.20%
8.20
Step-by-step explanation:
there u go
Charlie rented a moving truck. He pays for each mile traveled and a rental fee for the truck. The table below shows the amount Charlie paid
Answer:
20
Step-by-step explanation:
i got 15 points out of 20 what is my grade
Answer:
75% (Letter grade = C)
Step-by-step explanation:
15 ÷ 20 = 0.75Multiply by 100: 0.75 × 100 = 75So, your grade was a 75% (letter grade = C)Answer:
75%
Step-by-step explanation:
We need to find out what your grade is.
Since we know that you got 15 out of 20 points we need to find the Greatest Common Factor of these two numbers.
1. [tex]5\left \{ {{15 / 5} \atop {20 / 5 }} \right}} = \frac{3}{4}[/tex]
Now we need to turn this fraction into a decimal.
In order to do that we need to divide our 3 by our 4.
2. [tex]\frac{3}{4} = .75[/tex]
Finally, we need to turn this decimal into a percentage.
In order to do this we must multiply our decimal by 100.
3. .75 * 100 = 75%
Feel free to give brainliest.
Have a great day!
In one school, 5/6 of the sixth graders take a foreign language. Of these students, 2/5 take French. What fraction of the sixth graders take French? If there are 150 sixth grade students, how many take French?
My sister needs help before the end of the day please help me.
The options for the 2nd question are 3, 50, 100, 150, and 200.
Answer:
[tex]50[/tex]
Step-by-step explanation:
The prorportion of students that take a foreign language is [tex]\dfrac{5}{6}[/tex]
The total number of students is 150
Number of students who take a foreign language
[tex]\dfrac{5}{6}\times 150=125[/tex]
Out of these students [tex]\dfrac{2}{5}[/tex] portion of students take French.
Number of students that take French
[tex]\dfrac{2}{5}\times 125=50[/tex]
So, number of students that take French is [tex]50[/tex].
prove that sin²∅+cos²∅=1 ?
Step-by-step explanation:
Let ABC be a right angled triangle where there's a right angle in B . Let the measure of the angle BAC be ∅. So,
[tex] \sin(∅) = \frac{BC}{AC} [/tex]
[tex] = > {\sin}^{2}∅ = \frac{ {BC}^{2} }{ {AC}^{2} } [/tex]
Also,
[tex] \cos(∅) = \frac{AB}{AC} [/tex]
[tex] = > { \cos}^{2}∅ = \frac{ {AB}^{2} }{ {AC}^{2} } [/tex]
Now adding the values of sin^2∅& cos^2∅,
[tex] { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {BC}^{2} }{ {AC}^{2} } + \frac{ {AB}^{2} }{ {AC}^{2} } [/tex]
[tex] = > { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {AB}^{2} + {BC}^{2} }{ {AC}^{2} } [/tex]
But we know that
[tex] {AC}^{2} = {AB}^{2} + {BC}^{2} [/tex] by applying Pythagorean Theorem
So ,
[tex] = > { \sin}^{2} ∅ + { \cos}^{2} ∅ = \frac{ {AC}^{2} }{ {AC}^{2} } = 1[/tex]
Just in case some of you have this question
Answer:
lol
Step-by-step explanation:
lllooooooooool
vivian is going to do some yard work, but she needs to leave her house at 2:00 to go to a football game. She is going to mow the lawn for 1 hour and 15 minutes, trim some bushes for 40 minutes, and put down some mulch for 25 minutes, She will also need 30 minutes to shower and get dressed. What time should she start the work so that she will be ready at 2:00?
Answer:
11:10
Step-by-step explanation:
1h15m + 40m + 25m + 30m = 2h50m
She'd need to start 2h50m before 2:00, which would be 11:10 I think
12 1/2 gal= qt
can you help me plsssssss
Answer:
50 qrts
Step-by-step explanation:
12.5 gal = 4x qrts
12.5 * 4 = 50
in 1/2 a gal. there is 2qt.
so that makes a gal = 4qt.
12 x 4 =48qt plus 2qt equals 50 qt
Please help me ASAP
Answer: y = mx + b
Step-by-step explanation:
Answer:
y=-1x+4
Step-by-step explanation:
A recipe calls for 3 cups of sugar for
every 1 cup of butter. How many cups
of butter does the recipe need for 4.5
cups of sugar?
Answer:8.5 cups
ithink
im not sure
Step-by-step explanation:
Which graph is a possible graph of the points (5, -3) and
(-5, -3)?
Answer:
y=-3
I hope this is good enough:
What is the solution to the equation 1/2 x + 3 = 2/3 x + 1
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[tex] \frac{1}{2} x + 3 = \frac{2}{3} x + 1 \\ [/tex]
Subtract sides 3
[tex] \frac{1}{2} x + 3 - 3 = \frac{2}{3} x + 1 - 3 \\ [/tex]
[tex] \frac{1}{2} x = \frac{2}{3} x - 2 \\ [/tex]
Multiply sides by 6
[tex]6 \times \frac{1}{2} x = 6 \times \frac{2}{3} x + 6 \times ( - 2) \\ [/tex]
[tex]3x = 4x - 12[/tex]
Subtract sides 4x
[tex] - 4x + 3x = - 4x + 4x - 12[/tex]
[tex] - x = - 12[/tex]
Negatives simplifies
[tex]x = 12[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
CHECK :
[tex] \frac{1}{2} (12) + 3 = \frac{2}{3} (12) + 1 \\ [/tex]
[tex]6 + 3 = 8 + 1[/tex]
[tex]9 = 9[/tex]
Thus the solution is correct .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Angela’s car leaked 6 ounces of oil in 9 days what is the unit rate of the oil leak ??
angelas car leaked=6ounces
angeales car leaked in 9days = 6×9=54
A number cube has a volume of 27 mm3. What is the length of one edge of the cube
the length of the rectangular field is 7 times of its breadth its area is 1792 square metres find the cost of fencing it at the rate of rupees 1.5 per metre
Answer:
Step-by-step explanation:
first you would need to find the perimeter in order to find the cost of fencing.
x(7x)=1792
7x^2=1792
x^2=256
x=16
so you have x which is the width. now time to find the length
16 times 7 is 112
112 is your width
112+112+16+16 is 256, which is your perimeter.
256 times 1.5 is your cost, or 384 rupees
If Big Bun won 5 out of 25 matches, what percent did he win?
Answer:
5/25*100=
1/5*100=100+5=20
Which statements accurately describe this equation?
Check all that apply.
Answer:
The second and the last one
Step-by-step explanation:
There is no solution to the problem, meaning that nothing you plug in will make the equation equal to each other
Answer:
any input value for the variable will generate a true equation
Step-by-step explanation:
cuz the last answer will be 0x = 35
so it does not matter what value x hold cuz the answer will stay the same
What is the y-intercept (b) of the line? (Use frame 5 in Jamboard to answer this question) please help!! thank you!!
mZTRI = 3x - 5, mZIRB = x + 27,
and mZTRB = 86. Find the mZTRI.
Answer:
m∠TRI = 43
Step-by-step explanation:
m∠TRI + m∠IRB = m∠TRB
3x - 5 + x + 27 = 86
3x + x - 5 + 27 = 86 {Combine like terms}
4x + 22 = 86 {Subtract 22 from both sides}
4x = 86 - 22
4x = 64 {Divide both sides by 4}
x = 64/4
x = 16
m∠TRI = 3x - 5
= 3*16 - 5
= 48 - 5
= 43
Name two transformations and a composite transformation that will produce the image.
Answer:
Translation. The translation transformation shifts a node from one place to another along one of the axes relative to its initial position. ...
Rotation. The rotation transformation moves the node around a specified pivot point of the scene. ...
Step-by-step explanation:
Answer:
Translation and rotation.
Thank you and please rate me as brainliest as it will help me to level up
PLZZ HELP MEEEE
The length of the house is 50 m. In the plan, it is 12.5 cm. What is the scale of the house plan?
Answer:
Step-by-step explanation:
lol i think 800 m imao if im not corecct
Answer: 1:400
Step-by-step explanation:
What value makes of x makes the equation 1.25(4x-10)=7.5 true
A. 3.5
B -1
C -0.5
D 4