Answer:
in x>5 x is larger than 5
Step-by-step explanation:
x=5 means x is equal to 5
x>5 means x is greater than 5
Answer:
X=5 means that the unknown variable in the equation is equal to the number 5, while x > 5 means that the unknown variable is larger then the number 5.
Step-by-step explanation:
5 tenths + 8 hundreths
Answer:
50,800
Step-by-step explanation:
Identify whether the following equation has a unique solution, no solution, or infinitely many solutions.
2( − 4) = 10 − 8 − 8
A
unique solution
B
no solution
C
infinite solutions
Someone PLEASEEE HELP ME WITH THISSS
Answer:
6 out of 100 and 3 out of 50
Step-by-step explanation:
23. -2/k=?/8k?
Need the answer ASAP please.
Answer:
-1.44859461 × 1023 m-2 kg-1 s2 K
Driving instructors Mr. Adams and Mr. Bateman teach class independently of each other. Among Mr. Adams’s students, 68% pass the driving test on the first try, while 74% of Mr. Bateman’s students pass the driving test on the first try. Suppose there are 40 students in Mr. Adams’s class and 50 students in Mr. Bateman’s class. Let A = the proportion of students who pass the driving test on the first try from Mr. Adams’s class and B = the proportion of students who pass the driving test on the first try from Mr. Bateman’s class. What is the probability that Mr. Bateman’s class has more students who pass on the first try?
Find the z-table here.
0.266
0.547
0.734
0.765
Answer:
0.989 = 98.9% probability that Mr. Bateman’s class has more students who pass on the first try
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution, the binomial approximation to the normal and subtraction of normal distributions.
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.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
Can be approximated to a normal distribution, using the expected value and the standard deviation.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
The standard deviation of the binomial distribution is:
[tex]\sqrt{V(X)} = \sqrt{np(1-p)}[/tex]
Subtraction of normal distributions:
When two normal variables are subtracted, the mean is the subtraction of the means while the standard deviation is the square root of the sum of the variances.
Among Mr. Adams’s students, 68% pass the driving test on the first try. Sample of 40.
This means that [tex]p = 0.68, n = 40[/tex].
[tex]\mu_A = np = 40*0.64 = 27.2[/tex]
[tex]s_A = \sqrt{40*0.68*0.32} = 2.95[/tex]
74% of Mr. Bateman’s students pass the driving test on the first try. Sample of 50:
[tex]p = 0.74, n = 50[/tex]
[tex]\mu_B = np = 50*0.74 = 37[/tex]
[tex]s_B = \sqrt{50*0.74*0.26} = 3.1016[/tex]
What is the probability that Mr. Bateman’s class has more students who pass on the first try?
This is the probability that B - A is greater than 0.
Distribution B - A:
Mean:
[tex]\mu = \mu_B - \mu_A = 37 - 27.2 = 9.8[/tex]
Standard deviation:
[tex]\sigma = \sqrt{s_A^2 + s_B^2} = \sqrt{2.95^2 + 3.1016^2} = 4.28[/tex]
Probability of being larger than 0:
1 subtracted by the pvalue of Z when X = 0. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{0 - 9.8}{4.28}[/tex]
[tex]Z = -2.29[/tex]
[tex]Z = -2.29[/tex] has a pvalue of 0.011
1 - 0.011 = 0.989
0.989 = 98.9% probability that Mr. Bateman’s class has more students who pass on the first try
Answer:
0.734, c
Step-by-step explanation:
If you have 8 marbles in the bag (5 blue and 3 green) and you draw 2 with replacement, what is the theoretical probability that both marbles will be green?
a.
14%
c.
23%
b.
20%
d.
39%
Answer:
d.39%
Step-by-step explanation:
Loki told me
But really, 39% should be correct
find the area of a circle whose diameter is 7cm
Answer:
3.5pi
Step-by-step explanation:
just multiply together and you'll get your answer
Answer:
38.5 cm^2
Step-by-step explanation:
Diameter ( d ) = 7 cm
Radius ( r ) = 7 / 2 cm
Formula : -
Ar ( circle ) = π r^2
π r^2
= ( 22 / 7 ) x ( 7 / 2 )^2
= ( 22 / 7 ) x ( 49 / 4 )
= 38.5 cm^2
What is the starting term of 64?
Answer:
1
Step-by-step explanation:
One is the starting term
1, 2, 4, 8, 16, 32, 64, 128, 256,
The steps below show the incomplete solution to find the value of x for the equation
5x − 2x − 3 = −2 + 15:
Step 1: 5x − 2x − 3 = −2 + 15
Step 2: 5x − 2x − 3 = 13
Step 3: 3x − 3 = 13
Which of these is most likely the next step?
3x = 16
3x = 10
3x = 39
3x = 3
The most likely step would be choice 1: 3x = 16 because in step 3, you should add 3 on both sides. So, 3's would cancel out on the left side and you solve for 13 + 3 = 16. Thus, the answer would be 3x - 16. Hope this helps :)
calculate the reciprocal of -0.07 correct to 1 decimal place
Answer:
-14.3
Step-by-step explanation:
Use a calculator.
1/(-0.07) = -14.2857...
Answer: -14.3
What is the volume of this
pyramid?
Answer:
There is not pictutre.
Step-by-step explanation:
HELP! WILL GIVE BRANLIEST
Answer:
X=11
Z=73
Step-by-step explanation:
So vertical angles are equal so to find X
107=12x-25
Solve the equation
x=11
4 angles are 360 degrees, we know 2 angles.
107+107= 214
360-214= 146
146 is the two angles added up, divide them by 2 to find each side
146/2= 73
Z=73
look at pic 10 pts will mark brainilest pls
Answer: it look like you have to do 20*10=200 and 8*4=32 the 4 where I got it from is 10-6=4 so 200+32=232 this is what I think, sorry if it wrong.
Step-by-step explanation: Hope this help :D
yo can someone please help me out. school is rlly stressful and i just need help. the question is “find the perimeter and area of each figure. use 3.14 for pi when needed.” the work is on composite figures. tysm <3
PLEASE HELP DUE IN 2 HOURS!
4.22 g/cm to lbs/ft
Answer:
I dont know if this helps
0.009 3 0 3 5 0 7
I think this is the answer
I Need Help ;-; pls its timed
A rectangle is shown on a coordinate plane with vertices A(Negative 4, 8), B(1, 8), C(1, Negative 1), and D(Negative 4, Negative 1).
On a coordinate plane, a rectangle has 4 points. Point A is (negative 4, 8), point B is (1, 8), point C is (1, negative 1), point D is (negative 4, negative 1).
What are the dimensions of the rectangle?
The base is 4 units and the height is 9 units.
The base is 5 units and the height is 7 units.
The base is 5 units and the height is 9 units.
The base is 9 units and the height is 3 units.
Answer:
The correct answer is the third option
Step-by-step explanation:
I used a graphing calculator and also did L(W). But, the length (height) was 9 and (base) width 5
Start with x2 - 6x + 8 = 0 and complete the square, what is the equivalent equation?
es -))
A)
(x + 3)2 = 1
B)
(x+3)2 = 9
C)
(x - 3)2 = 1
D)
(x-3)=9
Part c Katie started with $40. How much money did she have left after purchasing the supplies? Enter your answer in the box provided.
Answer:
gotta give me more details here Katie
Mrs. Smith is shopping for a toy chest to go
in her kids' playroom. She looks at the options
shown.
How much floor space will toy chest A take up?
Answer: 20ft
Step-by-step explanation:
floor space is only worried about the area of the base, so A would be 4*5 or 20
Answer:
20
Step-by-step explanation:
3. State if each statement is correct. If it is not correct, then fix the mistake.
For three problems explanation and work needed
SOON ASP!!!! please.
Answer:
All are incorrect
Step-by-step explanation:
Required
Determine which is correct or not
[tex](a)\ 2x * 2x = 4x[/tex]
This is incorrect because:
[tex]2x * 2x = 2 * 2 * x*x[/tex]
[tex]2x * 2x = 4x^2[/tex] ---- fixed
[tex](b)\ 3x^3 * 3x^3 = 9x^9[/tex]
This is incorrect because:
[tex]3x^3 * 3x^3 = 3 * 3 * x^3 * x^3[/tex]
[tex]3x^3 * 3x^3 = 9x^(3+3)[/tex]
[tex]3x^3 * 3x^3 = 9x^6[/tex] ---- fixed
[tex](c)\ 4x(4x + 5) =8x + 5[/tex]
This is incorrect because:
[tex]4x(4x + 5) =4x * 4x + 4x * 5[/tex]
[tex]4x(4x + 5) =16x^2 + 20x[/tex] ---- fixed
Susan and Sarah love to play their favorite frivia
video game. Susan has a total score of 87,325
points. Sarah has a total score of 46,175. How
many times larger is the 7 in Susan's score than
Sarah's score?
Answer:
please l don't understand
Please help me
X*1+ x/1
Pick one of these
x
1
2x
1+x
Answer:
2x
Step-by-step explanation:
x*1 is x
x/1 is also x
x+x=2x
what is prison break
Answer:
Erm.
The game on robl. ox
Or real life?
Breaking out of prison is real life
In robl. ox, its also kinda like that, but you steal things
Step-by-step explanation:
Can I have brainest. Im trying to level up :3
Thanks!
Have a good day!
Which equation below is decreasing across all real numbers ?
A. y=2(1/4)^x
B. y=1/3(5)^x
C. y=3x-5
D. y=3(5)^x
Answer:
A
Step-by-step explanation:
All the other exponential equations have a base greater than 1 except A and c is a linear equation with positive slope
A spherical cantaloupe is cut in half. The visible cross-section has an area of 5252 in2. The volume of the cantaloupe is _____ cm3. Round your answer to the tenths place.
Answer:
V = 286319.465 cm3
Step-by-step explanation:
First, you have to find the radius to be able to find the volume of a sphere.
The equation for the area of a circle is pi r^2 so you have to so some algebra.
5252 = pi r ^2
5252/pi = r^2
1671.76352 = r^2
sqrt(1671.76352) = r
r = 40.8872048
then you do the equation for the volume of a circle which is 4/3 pi r^3
4/3 pi (40.8872048)^3
4/3 pi 68353.7373
4/3 214739.599
286319.465
V = 286319.465 cm3
A model rocket is launched with an initial upward velocity of 62/ms. The rocket's height h (in meters) after t seconds is given by the following.
h=62t-5t^2
Find all values of t for which the rocket's height is 29 meters.
Round your answer(s) to the nearest hundredth.
9514 1404 393
Answer:
t = 0.49, 11.91
Step-by-step explanation:
A graphing calculator can show you the answers quickly. The times are 0.49 seconds and 11.91 seconds.
__
We can write the equation as ...
h = 29
62t -5t^2 = 29 . . . . . substitute for h
-5(t^2 -12.4t) = 29
-5(t^2 -12.4t +6.2^2) = 29 -5(6.2^2) . . . . complete the square
-5(t -6.2)^2 = -163.2 . . . . . simplify
t -6.2 = ±√(-163.2/-5) = ±√32.64 . . . . divide by -5, take the square root
t = 6.2 ±5.71
t = 0.49, 11.91
The rocket has a height of 29 meters at t=0.49 seconds and t=11.91 seconds.
Juan has four ties, three shirts and four pairs of pants. How many different outfits can he wear if he chooses one Tie, one shirt, one pair of pants of each outfit?
Answer:
48 outfits
Step-by-step explanation:
Using Fundamental Principal of counting
number of outfits that Juan can wear
=number of ties * number of pants * numberof pants
=4*3*4
=48 outfits
The number of different outfits can he wear if he chooses one Tie, one shirt, one pair of pants for each outfit is 48 outfits.
What is the combination?The arrangement of different things or numbers in a number of ways is called a combination.
A permutation is an orderly arrangement of things or numbers. Combinations are a way to choose items or numbers from a collection or group of items without worrying about the items' chronological order.
Given that Juan has four ties, three shirts, and four pairs of pants.
Using the Fundamental Principle of counting,
Number of outfits that Juan can wear
N =number of ties x number of pants x number of pants
N =4 x 3 x 4
N =48 outfits
Therefore, the number of different outfits can he wear if he chooses one Tie, one shirt, one pair of pants for each outfit is 48 outfits.
To know more about permutation and combination follow
https://brainly.com/question/4658834
#SPJ2
Find the surface area of the prism.
Please help
Answer:
The area of the prism is 54 ft.
Step-by-step explanation:
times 9 times 6 ft and ya get 56
but I don't know If whats you're looking for
Genies is making cookies. She needs 1 2/3 cups of flour for one batch, but she wants to make 2 1/3 batches. Write an equation that can be used to find how many cups of flour genies will need
Equation: (1 2/3)(2 1/3) = x
Answer: 3 8/9 cups
Step-by-step explanation:
x represents the amount of flour she will need in cups.
To solve, convert the mixed numbers to improper fractions and multiply...
1 2/3 becomes 5/3
2 1/3 becomes 7/3
Now we have
(5/3)(7/3) = x
35/9 = x
35/9 is 3 8/9 as a mixed number
The figure below has a volume of 60 cubic units. How many more cubes will it take to fill the figure?
5 cubic units
40 cubic units
55 cubic units
60 cubic units
Answer:
40 cubic units
Step-by-step explanation: