The percentage change in price from $125 to $75 is 166.67%
PercentageOriginal price = $125New price = $75Percentage change = old price / new price × 100
= 125/75 × 100
= 1.66666666666666 × 100
= 166.666666666666
Approximately,
166.67%
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Answer please????????????????????????
Answer:
(-3,-1) -> (3,1)
Step-by-step explanation:
Reflection over the y-axis:
When we reflect a point (x,y) over the y-axis, it's y-coordinate is kept, while the x-coordinate changes signal. So
(3,-1) -> (-3,-1)
Clockwise rotation of 180º
Both coordinates of the point change signals. So
(-3,-1) -> (3,1)
the curve of a normal distribution extends indefinitely at the tails but does not
Answer:
But does not touch the horizontal axis.
Step-by-step explanation:
The curve of a normal distribution extends indefinitely at the tails but does not " touch the horizontal axis."
The reason for this is that the tails of the curve suggest that a variable can take on any theoretically reasonable value, although the probability of such occurrence is considerably low.
Generally, a normal distribution curve is considered to be asymptotic to the horizontal axis.
In this exercise we have to have knowledge about distribution and complete the sentence, thus we find:
The curve of a normal distribution extends indefinitely at the tails but does not but does not touch the horizontal axis.
What is a normal distribution ?The great utility of this distribution is associated with the fact that it quite satisfactorily approximates the frequency curves of physical measurements, this curve is known as the normal or gaussine distribution.
Returning to the exercise we have to:
That when we deal with a normal distribution we will have that the tail will not touch the horizontal axis since that way it would mean that it reached zero.
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I need help with this so please help chicken mcnugget
Answer:
Imao
Step-by-step explanation:
Alondra says that (12 + 31) × 5 is equivalent to 12 + 31 × 5 because of the associative property.
Describe the associative property in words.
Answer:
Step-by-step explanation:
The associative property states that you can add or multiply regardless of how the numbers are grouped.
Unit circle to find exact value of sin 180 degree
Answer:
0
Step-by-step explanation:
What is the measure of
Angles are not necessarily drawn to scale.
I hate math
x= 139°
180-41= 139°
hope this helped:)
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Answer:
-32
Step-by-step explanation:
why wealthy colonists used the Africans as workers? help asp
Answer:
they provided cheap labour
Step-by-step explanation:
this is because Africans were sold as slaves to the rich colonialists.
Please help me out tysm
Answer: 1/4 s^2 or [tex]\frac{1}{4} s^{2}[/tex]
Combine the like terms to create an equivalent expression:
-3.x - 6+(-1)
~!!!!! PLEASE HELP IM IN 7TH GRADE LEARNING 9TH AND 8TH GRADE MATH !!!!!~
QuESTION *SORRY ITS SMALL HGVCFGHJJHV*
Each circle counts as one whole. Write a mixed number giving the amount shaded. Then, write this amount as an improper fraction.
itis 8 cause we added
what does 4/6 + 2/5 equal
Answer:
= 16 /15 (Decimal: 1.066667)
Step-by-step explanation:
4 /6 + 2 /5
= 4 /6 + 2 /5
= 2 /3 + 2 /5
= 10 /15 + 6 /15
= 10+6 /15
= 16 /15 (Decimal: 1.066667)
Answer:
16/15 or 1 1/15 as a mixed number
Step-by-step explanation:
Responses which are acquired after birth are called _____ responses.
Answer:
Learned
Step-by-step explanation:
I luv u!
On a math test five out of 20 students scored 70 or below a score of 70 on this test would be the?
A. Lower quartile
B. Upper quartile
C. Median
D. 70th percentile
Lower quartile. The correct option is A
What is Lower quartile ?The lower quartile, often known as the first quartile or Q1, is a measure of central tendency that separates the bottom 25% of a data set from the rest of the data.
In this instance, five out of the 20 students received scores of 70 or lower, which equals a 25% proficiency rate.
Therefore, 70 or below is the lower quartile.
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what is this ???? ??????????????
Answer:
I READY
Step-by-step explanation:
Rewrite the equation using the distributive property
2(9x+4)
Answer:
18x+8
Step-by-step explanation:
distribute
2 x 9x = 18x
2 x 4 = 8
Hope This Helps!!
A square rug has an area of 121 ft?. Write the side length as a square root. Then decide if the side
length is a rational number.
HELP ASAP
Need help pls will give crown
2. A bag of dog food weighs 40 lb. By weight, 16% of the ingredients is turkey. Find the weight of turkey in the dog food.
a) Show the work to set up the problem. You may either use the percent equation, set up a proportion, or use a ratio table but SHOW YOUR WORK.
b) What is the weight of the turkey in the dog food according to your work in part a? Solve and show your work.
Answer: 6.4 is ur answer
Step-by-step explanation:
U need to multiply 40 and 16
Find the sum of 1005 and 296
Answer: the sum is 1301
Answer:
1301
Step-by-step explanation:
1005 + 296 = 1301
Which ordered pair is the solution set for this system of equations?
x + y = 8
y = x - 3
Answer:
(11/2, 5/2)
Step-by-step explanation:
x+x-3=8
2x=11
x= 11/2
y= 11/2-3
y= 5/2
Help me with this problem
Answer:
3
Step-by-step explanation:
8 < 3 no
8 = 3 no
8 > 3 yes
so the answer is 3
26 divided by 1690 help please once again
Answer:
[tex]26 \div 1690 \\ = 0.0154[/tex]
In a particular year, the mean score on the ACT test was 25 and the standard deviation was 5.9. The mean score on the SAT mathematics test was 480 and the standard deviation was 130. The distributions of both scores are approximately bell-shaped. Round the answers to at least two decimal places.
Required:
Find the z-score for an ACT score of 26.
Answer:
The z-score for an ACT score of 26 is 0.17.
Step-by-step explanation:
Z-score:
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.
In a particular year, the mean score on the ACT test was 25 and the standard deviation was 5.9.
This means that [tex]\mu = 25, \sigma = 5.9[/tex]
Find the z-score for an ACT score of 26.
This is Z when X = 26. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{26 - 25}{5.9}[/tex]
[tex]Z = 0.17[/tex]
The z-score for an ACT score of 26 is 0.17.
A band will sell CDs of their music at their concert for $5.00 each. The band ordered 300 CDs at a cost of $1.25 each. Which inequality represents the number of CDs, n, the band needs to sell to make a profit of at least $500?
1. x is greater to or equal to 99
2. x is greater to or equal to 100
3. x is greater to or equal to 133
4. or x is greater to or equal to 134
Given:
Selling price of each CD = $5.00
Cost price of each CD = $1.25
Number of CDs ordered = 300
Profit must be at least $500.
To find:
The number of CDs needs to sell.
Solution:
Let n be the number of CDs needs to sell.
Selling price of each CD = $5.00
Selling price of x CDs = $5n
Cost price of each CD = $1.25
Cost price of 300 CDs = 300×$1.25
= $375
We know that,
[tex]Profit=S.P.-C.P.[/tex]
[tex]Profit=5n-375[/tex]
Profit must be at least $500. it means profit must be greater than or equal to $500.
[tex]5n-375\geq 500[/tex]
[tex]5n\geq 500+375[/tex]
[tex]n\geq \dfrac{875}{5}[/tex]
[tex]n\geq 175[/tex]
All options are incorrect. The required inequality is n is greater than or equal to 175.
At a football game, 35% were supporting the visiting team. If 2119 people attending
supported the home team, what was the total number of people attending the game?
Answer:
3260
Step-by-step explanation:
yeah ok
Which of the following is equivalent to the expression shown?
Answer:
C
Step-by-step explanation
3x--x=4x
1-2=-1
1/2 x 4x=2x
1/2x-1=-1/2
Jacob's piggy bank has
18 quarters, 20 dimes, 24 nickels,
and 43 pennies. He chooses a coin,
does not replace it, then chooses
another. What is the probability
that he chose a dime then
a nickel?
Answer:
Step-by-step explanation:
Tesla Battery Recharge Time.The electric vehicle manufacturing company Tesla estimates that a driver who commutes 50 miles per day in a Model S will require a nightly charge time of around 1 hour and 45 minutes (105 minutes) to recharge the vehicle’s battery (Tesla company website). Assume that the actual recharging time required is uniformly distributed between 90 and 120 minutes.
a. Give a mathematical expression for the probability density function of battery recharging time for this scenario.
b. What is the probability that the recharge time will be less than 110 minutes?
c. What is the probability that the recharge time required is at least 100 minutes?
d. What is the probability that the recharge time required is between 95 and 110 minutes?
Answer:
a.) f(x) = [tex]\frac{1}{30}[/tex] where 90 < x < 120
b.) [tex]\frac{2}{3}[/tex]
c.) [tex]\frac{2}{3}[/tex]
d.) [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Let
X be a uniform random variable that denotes the actual charging time of battery.
Given that, the actual recharging time required is uniformly distributed between 90 and 120 minutes.
⇒X ≈ ∪ ( 90, 120 )
a.)
Probability density function , f (x) = [tex]\frac{1}{120 - 90} = \frac{1}{30}[/tex] where 90 < x < 120
b.)
P(x < 110) = [tex]\int\limits^{110}_{90} {\frac{1}{30} } \, dx[/tex]
= [tex]\frac{1}{30}[x]\limits^{110}_{90} = \frac{1}{30} [ 110 - 90 ] = \frac{1}{30} [ 20] = \frac{2}{3}[/tex]
c.)
P(x > 100 ) = [tex]\int\limits^{120}_{100} {\frac{1}{30} } \, dx[/tex]
= [tex]\frac{1}{30}[x]\limits^{120}_{100} = \frac{1}{30} [ 120 - 100 ] = \frac{1}{30} [ 20] = \frac{2}{3}[/tex]
d.)
P(95 < x< 110) = [tex]\int\limits^{110}_{95} {\frac{1}{30} } \, dx[/tex]
= [tex]\frac{1}{30}[x]\limits^{110}_{95} = \frac{1}{30} [ 110 - 95 ] = \frac{1}{30} [ 15] = \frac{1}{2}[/tex]
PLZ HURRY IT'S URGENT!!!
What are the roots of the quadratic?
-3 and 0
-3 and 1
-1 and 3
-1 and -3
Answer:
Roots are also called x-intercepts or zeros. A quadratic function is graphically represented by a parabola with vertex located at the origin, below the x-axis, or above the x-axis. Therefore, a quadratic function may have one, two, or zero roots. are given by the quadratic formula.
Step-by-step explanation: