Answer:
im sorry
Step-by-step explanation:
i dont kno
Please help me to see if this is correct
Answer:
You are correct
Step-by-step explanation:
Answer: yes, you are correct :)
Step-by-step explanation:
Which of the following is a statistical question?
What color is the principal's car?
What is the most common color car in the school parking lot?
Does Jalen own a cell phone?
What is your favorite color?
HELP
Answer:
so the question is going to be .B
Step-by-step explanation:
Anna juices 8 quarts of juice in 1 minute. How many gallons does she have in 1 hour? (4 quarts = 1 gallon)
Answer: 120
Step-by-step explanation: 8 times 60 is 480 then converted to gallons do
480/4
A sample from a population with μ = 40 and σ = 8 has a mean of M = 36. If the sample mean corresponds to a z = –1.00, then how many scores are in the sample?
Answer:
There are 4 scores in the sample.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
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 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.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
In this question, we have that:
[tex]\mu = 40, \sigma = 8, X = 36, Z = -1, s = \frac{8}{\sqrt{n}}[/tex]
We want to find n. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]-1 = \frac{36 - 40}{\frac{8}{\sqrt{n}}}[/tex]
[tex]-4\sqrt{n} = -8[/tex]
[tex]4\sqrt{n} = 8[/tex]
Simplifying by 4
[tex]\sqrt{n} = 2[/tex]
[tex](\sqrt{n})^2 = 2^2[/tex]
[tex]n = 4[/tex]
There are 4 scores in the sample.
PLEASE HELP!!!!!! ILL GIVE BRAINLIEST *EXTRA 40 POINTS** !! DONT SKIP :((
Answer:No
Step-by-step explanation:
i really need helpl lol pleasehelppppppppppppplplplppplplpl ?
Answer:
1,050
Step-by-step explanation:
3.5x
12x
25
=
1,050
PLEASE HELP! The AHS football team did a weigh-in at the start of training camp. The weights of the players were distributed normally with a mean of 98kg and a standard deviation of 6kg. What percentage of players are under 86kg?
=============================================================
Explanation:
Notice how 98-2*6 = 98-12 = 86. So we're 2 standard deviations below the mean.
Start at the center, which is where the highest point is located. The value 98 is at the center. Then move 2 spots to the left, which has us move 2 standard deviations lower than the mean, and we arrive at 86. Refer to the diagram below.
From here, we add up the percentages in that diagram that are below the 86 mark. Those percentages are the 0.15% and 2.35%
So we get (0.15%) + (2.35%) = 2.5% which is the answer
Side note: This diagram is using the Empirical Rule. Some textbooks call it the "68-95-99.7 rule", but that's more clunky of a name in my opinion. The three values 68, 95 and 99.7 refer to the approximate percentage values within 1, 2 and 3 standard deviations of the mean.
The measure of the interior angles of four refusal
Answer:
B) 180(n-2)
Step-by-step explanation:
B) 180(n-2)
Jason wants to score at least 15 points in his basketball game. He scored 8 points in the first half of the game. He needs to score b points to reach his goal. Which inequality can be used to find the possible values for b?
A. b +8 ≥ 15
B. b +8 > 15
C. b - 8 ≤ 15
D. b - 8 < 15
Answer:
A.
Step-by-step explanation:
Let's say that b=7. This would mean that he has equaled his goal. If it is greater than 7, the equation still makes since.
What is the name of the special angle pair relationship between 1 and 2?
O corresponding angles
O same-side interior angles
o alternate interior angles
O alternate exterior angles
The measure of <1 and <2 are alternate exterior angles
Alternate exterior anglesFrom the given diagram, the horizontal lines are parallel to each other with a transversal.
The alternate angles are formed from the shape formed by a letter Z. From the given diagram, the measure of <1 and <2 are alternate exterior angles
Learn more on exterior angles here: https://brainly.com/question/17972372
An equilateral triangle has a side length of 10 units. What is its area?
Answer:
Hope my ans help you plz if u can mark me brainlist
Step-by-step explanation:
A = 43.3
The area of an equilateral triangle has a side length of 10 units is 43.3 square units.
What is an equilateral triangle?An equilateral triangle is one with equally long sides on both sides. The three angles opposite the three equal sides are equal in size because the three sides are equal. As a result, with each angle measuring 60 degrees, it is sometimes referred to as an equiangular triangle.
Given the side of an equilateral triangle = 10 units
the area is given by,
A = √3/4 × a²
where a is the length of the side,
A = √3/4 × 10²
A = 1.732 x 100/4
A = 43.3 square units.
Therefore, the area of a triangle is 43.3 square units.
Learn more about equilateral triangle;
https://brainly.com/question/3461022
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7.
Judy can decorate 3 cakes in 5 hours. Which graph has a slope that best represents the
number of cakes per hour Judy can decorate?
A
Cake Decorating
Cake Decorating
Number of Cakes
30
27
24
21
18
15
12
Number of Cakes
30
27
24
8 21
18
15
12
9
G
3
0 1 2 3 4 5 6 7 8 9 10
Time (hours)
0 1 2 3 4 5 6 7 8 9 10
Time (hours)
B
Cake Decorating
D
Cake Decorating
y
30
2
30
27
24
21
Number of Cakes
200
18
15
Number of Cakes
19
Answer:
B
Step-by-step explanation:
is the one that shows how many cakes were made in an hour
hour is 60 minutes so u will divide 60 by 3 it equal to 20
it means they make 20 cakes in 1hour
Whoever answers first will get marked Best!A cheetah runs 177 miles in 3 hours,at this rate how many hours will it take to travel 531 miles?
Answer:
9 hours
Step-by-step explanation:
brainliest plss???
What part of an hour passed from 4:30 P.M. to 4:45 P.M.?
Answer:
15 minutes it what we call it pretty sure its 10
Step-by-step explanation:
Answer:
15min or a quarter of an hour.
Step-by-step explanation:
Find the distance between P and Q. P(-3, -4), Q(6, -7)
Answer:
Please find attached pdf
Step-by-step explanation:
Step-by-step explanation:
P=(-3,-4)=(X1,Y1)
Q=(6,-7)=(X2,Y2)
Pq=root under( x2-x1)^2+(y2-y1)^2
= root under {6-(-3)}^2+{-7-(-4)}^2
= {6+3}^2+{-7+4}^2
= 9^2+(-3)^2
= 81+9
= 90
= 3root under10 unit.#
Rewrite the expression by combining like terms.
3y + 5x2 + 10x + 2x2 + 15x - 3y
2 + 2xy + 2x
3x2 + 3x + 6y
7x24
30x² + 6y² + y
Answer:
Factoring 3x2 - 2x - 1
The first term is, 3x2 its coefficient is 3 .
The middle term is, -2x its coefficient is -2 .
The last term, "the constant", is -1
Step-1 : Multiply the coefficient of the first term by the constant 3 • -1 = -3
Step-2 : Find two factors of -3 whose sum equals the coefficient of the middle term, which is -2 .
-3 + 1 = -2 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -3 and 1
3x2 - 3x + 1x - 1
Step-4 : Add up the first 2 terms, pulling out like factors :
3x • (x-1)
Add up the last 2 terms, pulling out common factors :
1 • (x-1)
Step-5 : Add up the four terms of step 4 :
(3x+1) • (x-1)
Which is the desired factorization
Final result :
5xy2 • (x - 1) • (3x + 1)
how do i solve this 14 − x = 5
Answer:
9
Step-by-step explanation:
because 14-5=9
A triangle has one angle that measures 81° and one that measures 37° what is the measure of the third angle
Answer:
the third angle of the triangle is 62°
62 grad
Step-by-step explanation:
solve the equations by factorization method:
(ii) x² - 2ax + a²-b=0
Answer:
x=a+ b x=a-b
Step-by-step explanation:
BRAINLIEST PLSSSSSSSS
USE SYMBOLAB IT WORKS AND MATHPAPA
Can someone help me out please ? Will give brainiest answer. Need all 6
Step-by-step explanation:
tell me the math problem I will tell u the answer its blurry
1.7. Examine parallelogram ABCD below.
B
5x+12
с
9y - 2
7y+4
A
8x - 6
D
Determine which of the following values are correct. Select all that apply.
A. y=1
B. x = 2
C. y=3
D. X = 6
E. AD = 42
F. AB = 25
Answer:
So.
The correct is (C, D, E and F)
And (A and B) isn't correct
Step-by-step explanation:
I hope that is useful for you :)
what is the value? when r equals 0
Answer:
I do not know the answer to this question
Step-by-step explanation:
How is basic math used in a business? Give me three examples.
Answer:
Understanding basic business math is necessary for profitable operations and accurate record keeping. Knowing how to add, subtract, multiply, divide, round and use percentages and fractions is the minimum you need to price your product and meet your budget.
Solve the equation for y: 2 y – 25 = 19
Answer:
2y - 25 = 19
2y = 19 + 25
2y = 44
y = 44 / 2
y = 22
Hope it helps
A meteorologist stated that 1 foot of snowfall would melt to make 2 inches of water. Based on this rule, how much water should result from 84 inches of snowfall ?
Jillian measured how far each of her paper airplanes flew in feet.
Complete the table to how how far each paper airplane flew in inches.
Answer:
72
Step-by-step explanation:
there are 12 inches per foot, so if five feet is equal to 60 inches then just add 12 and you get 72. 6 feet would be equal to 72 inches
Answer:
26 + 35 + 37 + 46 = 144
Every 3 feet is one yard, so 144/3 = 4
Step-by-step explanation:
48 Yards
Please need help thank
Answer:
7
Step-by-step explanation:
If each amount of time is a separate person, then 7
Observa la siguiente tabla que muestra los precios de un libro de cuentos y sus
respectivos descuentos en cuatro librerías.
Libreria
Answer:
No conozco este pero puedo ayudarte con otros
Step-by-step explanation:
Based on the table given, the bookstore that discounts more pesos from the original price is Leer es saber.
Which bookstore has the highest discount?Discount from El cuentacuentos:
= 100 x 20%
= $20
Discount from Leer es saber:
= 125 x 25%
= $31.25
Discount from El librote:
= 80 x 5%
= $4.00
Discount from Imagina:
= 90 x 10%
= $9
The highest is therefore Leer es saber.
The rest of the question is:
Qué librería descuenta más pesos del precio original?
Find out more on discounts at https://brainly.com/question/1548141.
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plss answer Part A #1 abc . i will give brainliest. late answers accepted
Answer:
a. (3x² - 2x - 5) units²
b. (x² - x) units²
c. (2x² - x - 5) units²
Step-by-step explanation:
a. Area of the frame = L*W
L = (x + 1) units
W = (3x - 5) units
Area of the frame = (x + 1)(3x - 5)
Apply distributive property
x(3x - 5) +1(3x - 5)
3x² - 5x + 3x - 5
Area of the frame = (3x² - 2x - 5) units²
b. Area of the picture = L*W
L = x units
W = (x - 1) units
Area of the picture = x(x - 1)
Apply distributive property
= x² - x
Area of picture = (x² - x) units²
c. Area of the frame that surrounds the picture = area of frame - area of picture
= (3x² - 2x - 5) - (x² - x)
= 3x² - 2x - 5 - x² + x (distributive property)
Add like terms
= 3x² - x² - 2x + x - 5
= 2x² - x - 5
Area of the frame that surrounds the picture = (2x² - x - 5) units²
PLEASE HELP!! WILL GIVE BRAINLIEST An artist has been commissioned to make a stained glass window in the shape of a regular octagon. The octagon must fit inside an 16-in. square space. Determine the length of each side of the octagon. Round to the nearest hundredth of an inch.