Answer:
Incomplete question, but I gave a guide to solve using the Empirical Rule.
Step-by-step explanation:
The Empirical Rule states that, for a normally distributed random variable:
68% of the measures are within 1 standard deviation of the mean.
95% of the measures are within 2 standard deviation of the mean.
99.7% of the measures are within 3 standard deviations of the mean.
It is also important to note that the normal distribution is symmetric. This means of the 68% of the measures are within 1 standard deviation of the mean, for example, 68/2 = 34% are between 1 standard deviation below the mean and the mean, and 34% are between the mean and 1 standard deviation above the mean.
In this question:
You take the mean and the standard deviation. Then you take both bounds that the percentage asks, and see how many standard deviations each are from the mean, and you then use the empirical rule to solve.
Alex ate 1/3 of a pizza. Katelyn ate 2/7 of the same pizza. How much larger of a portion did Alex eat than Katelyn?
Answer:
1/21
Step-by-step explanation:
1/3 - 2/7 = 7/21 - 6/21 = 1/21
Hope I helped!
NEED HELP ASAP!!! for geometry class
Answer:
B) AAS
Step-by-step explanation:
B) AAS
karen works for 85 hours throughout a two-week period. She earns $2,891.25 throughout this period. How much does karen earn for 8 hours
pls help me giving 33 points! enjoy <3
What is the slope of the equation y- 5 = -3x?
Answer:
-3/1
Step-by-step explanation:
It's always the x value over the y value, so whatever's in the x
Answer:
-3
Step-by-step explanation:
the equation is y=-3x+5, so m=-3
Consider the arithmetic sequence: 6,2,-2,-6,...
If n is an integer, which of these functions generate the sequence?
Choose all answers that apply:
a(n) = 10 – 4n for n > 0
b(n) = 10 – 4n for n > 1
c(n) = 18 - 4n for n > 2
d(n) = 14 - 4n for n > 3
Answer: b(n)=10-4n for n >1
The function a(n) = 10 – 4n for n > 0 generates the given arithmetic sequence.
What is an arithmetic sequence?"It is a number sequence with a common difference between successive terms."
For given example,
Given arithmetic sequence: 6, 2, -2, -6, . . .
Here, 2 - 6 = -4
-2 - 2 = -4
-6 - (-2) = -4
This means, the common difference is d = -4
If n is a positive integer, then the function a(n) = 10 - 4n (n > 0) generates given sequence.
For n = 1
⇒ a(1) = 10 - 4(1)
⇒ a(1) = 6
For n = 2,
⇒ a(2) = 10 - 4(2)
⇒ a(2) = 2
For n = 3,
⇒ a(3) = 10 - 4(3)
⇒ a(3) = -2
For n = 4,
⇒ a(4) = 10 - 4(4)
⇒ a(3) = -6
Therefore, the function a(n) = 10 – 4n for n > 0 generates the given arithmetic sequence.
Learn more about an arithmetic sequence here:
https://brainly.com/question/10396151
#SPJ2
The difference of the square of a number and 10 is equal to 3 times that number. Find the negative solution.
Answer:
-2
Step-by-step explanation:
Let's call the number x. The statement tells us that
x^2 - 10 = 3x, or
x^2-3x-10 = 0
Factoring:
(x-5)(x+2) = 0. Here, we see that there are two solutions: x = 5 and x = -2. So, the negative solution is x = -2.
I would appreciate it if someone could help me
Emily is three years older than Carla and five years younger than Dante. if Carla is c years old, how old is Dante in terms of c?
A. c + 6
B. c + 8
C. c + 10
D. 2c + 3
E. 2c + 5
Answer:
I think that Dante is
D. 2c +3
hope this helps
Answer:
B
Step-by-step explanation:
Emily is three years older than Carla so
Emily = C + 3
Emily is 5 years older than Dante so
Dante is (C + 3) +5
which is C + 8
How can you rewrite a^7 using exponent rules?
The hypotenuse of a right triangle measures 15 cm and one of its legs measures 4 cm.
Find the measure of the other leg. If necessary, round to the nearestytenth.
Answer:
14.5 cm
Step-by-step explanation:
Pythagorean theorem: a^2 + b^2 = c^2
c = hypotenuse (15)
to solve for b (other leg), the equation is b^2 = c^2-a^2
15^2 - 4^2 = 209
[tex]\sqrt{209}[/tex] = approx. 14.5
the other leg is (rounded to the nearest 10th) 14.5 cm
You drinking soda while playing a video game. You drank 4 full drinks over 3 1/3 rounds. If you drank the same amount each round, how much did you drink each round?
Solve for X.
Х
3 ft.
6 ft.
9 ft.
Help please i am stuck
Answer:
it is because so you can evenly add it
Step-by-step explanation:
because it is easyer to add 5/10 + 2/10
than 5/10 + 1/5 isnt it?
HELP PLEASE!!!
14 + 3x = 8x − 3(x − 4)
Also show work
Answer:
x=1
Step-by-step explanation:
14+3x=8x-3(x-4)
Solve for the value of n.
Answer:
3n-4= 44
3n=40
no u can solve
Answer:
17°
Step-by-step explanation:
3n - 5° + 90° + 44° = 180° { being linear pair }
3n + 129° = 180°
3n = 180° - 129°
3n = 51°
n = 51° / 3
n = 17°
Hope it will help :)
Given an initial quantity Q0=150 and a growth rate of 7% per unit time, give a formula for the quantity Q as a function of time t, and find the value of the quantity at t=10.
a) Assume the growth rate is not continuous. Round your answer for Q(10) to three decimal places.
Q(t)=
Q(10) =
b) Assume the growth rate is continuous. Round your answer for Q(10) to three decimal places.
Q(t)=
Q(10)=
Answer:
Step-by-step explanation:
From the given information:
(a)
Since growth quantity is not continuous
[tex]Q(t) = 150 (1.07)^t[/tex]
For t = 10
[tex]Q(10) = 150 (1.07)^{10}[/tex]
[tex]\mathbf{Q(10) = 295.073}[/tex]
(b)
Here, for a continuous growth rate, the growth quantity can be computed in terms of initial quantity and the growth rate.
i.e.
[tex]Q(t) = 150 e^{0.07t}[/tex]
At t = 10 for a continuous growth rate;
[tex]Q(10) = 150 e^{0.07 \times 10}[/tex]
[tex]Q(10) = 150 e^{0.7}[/tex]
[tex]\mathbf{Q(10) = 302.063}[/tex]
What is the distance between the points (2, 1) and (14, 6) on a coordinate
plane?
Answer:
the answer is 13 units
Step-by-step explanation:
What is 7x - 62 > 1 ?
Answer:
X>9
Step-by-step explanation:
Move all terms not containing x to the right side
7x>63
divide each term by 7 and simplify
7x/7 >63/7
cancel the common factor of 7
x>63/7
divide 63 by 7 x>9
x>9
what is the image point of (0,8) after a translation right 3 units and down 5 units
Answer:
(3,3)
Step-by-step explanation:
(0+3,8-5)
(3,3)
A lumber yard has scrap wood for sale. One employee recorded the measurements for the lengths of 50 different wood boards. The median length was recorded as 47.78 inches and the IQR was recorded as 14.54 inches. Someone discovers the measuring tape used started at 5 inches instead of 0. This means that each piece of wood is actually 5 inches shorter than the value recorded by the employee. What is the updated IQR
Answer:
The updated IQR is 14.54.
Step-by-step explanation:
The interquartile range is given by the difference between the 75th percentile(value that is greater than 75% of the measures) and the 25th percentile.
This means that each piece of wood is actually 5 inches shorter than the value recorded by the employee.
This means that the length of each wood is less than 5. However, the difference between the 75th percentile and the 25th percentile will stay the same, since both were subtracted by 5.
The updated IQR is 14.54.
The updated IQR is 14.54.
Interquartile range:The interquartile range should be provided by the difference between the 75th percentile and the 25th percentile.Since IQR was recorded as 14.54 inches. So the updated IQR is 14.54.Learn more about the range here: https://brainly.com/question/4135956?referrer=searchResults
What are all the factors of 142
Answer:
142 is a composite number. Factor pairs: 142 = 1 x 142 or 2 x 71. Factors of 142: 1, 2, 71, 142. Prime factorization: 142 = 2 x 71
Answer:
1, 2, 71, 142
Pairs would be (1 x 142), (2 x 71), (71 x 2), (142 x 1)
Step-by-step explanation:
Evaluate the expression [2³ ×(140 ÷ 7)] - 32
Answer:
128
Step-by-step explanation:
(2³) (140/7)-32 =128
Answer:
128
Step-by-step explanation:
[2³ ×(140 ÷ 7)] - 32
[2³ ×( 20)] - 32
[8×(20)] - 32
[160] - 32
128
Rayna has 5 pounds of ground beef to make hamburgers for a picnic. Each hamburger uses 1/4 pound of ground beef. How many hamburgers can Rayna make?
2+5x+1/2x^3dx
Answer
Answer:
[tex]2x+\frac{5x^2}{2}+\frac{x^4}{8}+C[/tex]
Step-by-step explanation:
I notice you have a dx at the end of the equation, this leads me to believe this is an integral. With no bounds of integration, I will solve for the indefinite integral. I will also interpret your equation as follows:
[tex]\int \:2+5x+\frac{1}{2}x^3dx[/tex]
Sum rule tells us:
[tex]\int \:2dx+\int \:5xdx+\int \frac{1}{2}x^3dx[/tex]
From this we get:
[tex]2x+\frac{5x^2}{2}+\frac{x^4}{8}[/tex]
Don't forget to add the constant!
[tex]2x+\frac{5x^2}{2}+\frac{x^4}{8}+C[/tex]
After Halloween, pumpkins were 25% off. Amy bought 2 big
pumpkins that were originally $7 each. How much did she
spend (before tax)?
What is 1 + 1 :)))))) EZ 100
Answer:
2
Step-by-step explanation:
You add i guess? Umm, seems pretty hard to explain such a simple question, lol
Answer:
2
Step-by-step explanation:
find b and round to the nearest tenth... (geometry) plz help fast i’m behind
Answer:
5.51 cm
Step-by-step explanation:
What is the solution for the equation shown below?
x^2+4=0
The equation of line WX is y = −2x − 5. Write an equation of a line perpendicular to line WX in slope-intercept form that contains point (−1, −2).
Answer:
Step-by-step explanation:
y = -2x - 5.....slope here is -2. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the slope we will need is : 1/2. See how I flipped the slope of -2/1 and changed it to -1/2.....now I change the sign making our new slope be 1/2.
y = mx + b
slope(m) = 1/2
(-1,-2).....x = -1 and y = -2
now sub and find b, the y int
-2 = 1/2(-1) + b
-2 = -1/2 + b
-2 + 1/2 = b
-4/2 + 1/2 = b
-3/2 = b
so ur perpendicular line is : y = 1/2x - 3/2
Answer:
y = -2x - 5
m = -2
Step-by-step explanation:
The perpendicular line has a negative reciprocal slope.
m = 1/2
You are also given a point, so use the point slope formula.
y - y1 = m(x - x1)
y + 2 = 1/2(x + 1)
y + 2 = 1/2x + 1/2
y = 1/2x - 3/2
So the line perpendicular to y = -2x - 5 in slope intercept form is:
y = 1/2x - 3/2
or
y = 0.5x - 1.5
Chilling and dying
Spending lonely nights
Pandemic gotta go no cap, especially since it got me on this brainly app