Answer:
30.99
Step-by-step explanation:
31 - 0.01 = 30.99
PLEASE ANSWER ANY QUESTIONS ASAP THANK YOU SO MUCH
A golf instructor is interested in determining if her new technique for improving players’ golf scores is effective. She takes four (4) new students. She records their 18-hole scores before learning the technique and then after having taken her class. She conducts a hypothesis test. Player 1 Player 2 Player 3 Player 4 Mean score before class 83 78 93 87 Mean score after class 80 80 86 86 This is which of the following and Why? 1. a test of two independent means. 2. a test of two proportions. 3. a test of a single mean. 4. a test of a single proportion.
Answer:
A test of two independent means.
Step-by-step explanation:
The test above is comparing the two independent mean scores (mean before taking her class ; μ1 and mean score after taking her class, μ2. This two mean values are tested to ascertain if there exist any statistical difference between them. This differs from the proportion which is ecekuared by the ratio of success or failure. The single mean and single proportion test only has one group which its mean or proportion is tested.
The null and alternative hypothesis for two independent sample means may be expressed thus :
H0 : μ1 = μ2
Alternative hypothesis
H1 : μ1 ≠ μ2
Angel got 4 problems wrong on a test of 50 questions. What percent of the questions did he get CORRECT
Answer:
12.5%
Step-by-step explanation:
Answer:
92%
Step-by-step explanation:
50-4 = 46
46/50 *100 = 92%
Answer choices
36
32
28
Please help due now
Answer:
36 it should be pretty easy but no problem
the spinner above is used in a game. what is the theoretical probability of the given event with one spin? p(5)
a. 7/8
b. 1/8
c. 5/8
d. 0
The theoretical probability of the given event with one spin p(5) is,
⇒ p (5) = 1 / 8
What is mean by Probability?The word probability refers to the likelihood of an event occurring. Probability means possibility. And, It is branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
We have to given that;
The spinner is used in a game.
Since, There are total 8 outcomes in spin.
Hence. The theoretical probability of the given event with one spin p(5) is,
⇒ p (5) = 1 / 8
Thus, The value of theoretical probability of the event with one spin p(5) is,
⇒ p (5) = 1 / 8
Learn more about the probability visit:
https://brainly.com/question/13604758
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Which rectangle represents dilation by a scale factor of 2 from the rectangle's center?
Answer:
it’s D
Step-by-step explanation:
I took the test
what expressions are equivalent to 10 - 12
Answer:
B
Step-by-step explanation:
(*￣3￣)╭ When subtracting they both equal the same of -2
Tai has 1/2 gallon of milk left in his
refrigerator. He pours the milk into
glasses that can each hold a 5/64 gallon.
How many glasses can Tai fill
completely with milk?
Answer:
He can completely fill six glasses, and there will be one glass 2/5 of the way full.
Step-by-step explanation:
3 7/10 + 5 3/4 + 3/4
Answer: 10.2 = 10 1/5
Step-by-step explanation:
Write the equation of this circle in standard form.
Answer:
x² + y² = 16
Step-by-step explanation:
(x-h)² + (y-k)² = r² -- The standard form of equation of circle
(x-0)² + (y-0)² = 4²
Celesta and Sam found that 14 marbles would fill each pouch. There were 12 pouches. How many marbles
did they need to fill all the pouches?
HELPP! I"LL GIVE THE FIRST RIGHT ANSWER BRAINLIEST!!!
Answer:
61
Step-by-step explanation:
Heights of Smith's Adult grandchildren median: 339
Heights of Thompsons' Adult Grandchildren median: 400
400 - 339 = 61
I need help will mark you the brainliest
Answer:
i thinnk A
Step-by-step explanation:
SYSTEM OF EQUATIONS
The sum of three times Sophia's age and twice Nick's age is 73. Twice Sophia's age plus four times Nick's age is 86. How old is Sophia?
3x + 8 < 4(x - 3)Solve the inequality and graph the solution set.
Step-by-step explanation:
3x+8<4x−12
Move all terms containing x
to the left side of the inequality.
Tap for more steps...
−x+8<−12
Move all terms not containing x
−x<−20
x>20
Interval Notation:(20,∞)
What is the area? Write your answer as a fraction or as a whole or mixed number.
Answer:
81 or 20 1/4
Step-by-step explanation:
im not sure sorry
Answer:
[tex] \frac{1681}{4} [/tex]
or
[tex]105 \frac{1}{4} [/tex]
Step-by-step explanation:
[tex]10 \frac{ + 1}{ \times 4} [/tex]
10×4=40+1=41, that will be your numerator (number at the top of the fraction) and the denominator 4 will stay the same. (bottom number)
[tex] \frac{41}{4} [/tex]
the base and the height will remain the same.
Formula : base × height = Area
[tex] \frac{41}{4} \times \frac{41}{4} = \frac{1681}{16} [/tex]
16 goes into 1681 105 times remainder 1.
so as a mixed number it will be
[tex] 105 \frac{1}{4} [/tex]
PLEASE HELP ME FAST!!!!!!
WILL MARK BRAINLIEST!!!!!!!
Phillip is ordering an ice cream sundae that consist of ice cream and
toppings. He can get either chocolate or vanilla as his ice cream. For his
toppings, he can get either sprinkles, almonds, or hot fudge. How many
different ways can Phillip order ice cream?
EDITED: Answer: Phillip can order 12 different ways of ice cream.
Step-by-step explanation:
Ahem.
He can only have Vanilla or Chocolate. So let's pet them in a separate Row.
Vanilla
With SprinklesWith AlmondsWith Hot FudgeWith Sprinkles and AlmondsWith Sprinkles and Hot FudgeWith Almonds and Hot FudgeChocolate
1.With Sprinkles
2.With Almonds
3.With Hot Fudge
4.With Sprinkles and Almonds
5.With Sprinkles and Hot Fudge
6.With Almonds and Hot Fudge
what would the class size be if 30 people represent 40% of the class?
Answer:
110 students
Step-by-step explanation:
%40 Divide 30
30 divided by %40 is 0.75
SO there is 60% left
%60 divided by 0.75
That is 80
80 + 30 =
110
Simplify: -6(x + 5) show work plz
Answer:
The answer is -6x - 30
Step-by-step explanation:
1) Expand by distributing terms.
[tex] - 6x - 6 \times 5[/tex]
2) Simplify 6 × 5 to 30.
[tex] - 6x - 30[/tex]
Thus, the answer is -6x - 30.
Answer:
-6x - 30
Step-by-step explanation:
Multiply using the distributive property.
-6x - 30
Hope this helps
A number is twice the other number. The sum of four times the smaller number and three times the larger number is 10. Find the numbers.
Please teach me how to do this. I'll give 90 points.
Answer:
1 and 2
Step-by-step explanation:
Let the first number be x
Let the other number be y
x = 2y.....eqn 1
From eqn 1, the smaller number is y while the bigger number is x.
3x + 4y = 10.... eqn 2
Substitute x = 2y into eqn 2
3(2y) + 4y = 10
6y + 4y = 10
10y = 10
Divide both sides by 10
y = 10/10
y = 1
Substitute y= 1 into eqn 1
x = 2y
x = 2(1)
x = 2
Nick is splitting 4 quarts of ice cream with 9 members of the team. If the ice cream is split evenly, how many will each person get? Explain.
Answer:
Each member will get 3 and 1/2 cups or 3.5 cups of ice cream.
Write the linear inequality shown in the graph. The gray area represents the shaded region. y ≤ –x + 4 y ≤ –x – 4 y ≥ –x – 4 y ≥ –x + 4
For Example:
Write the linear inequality shown in the graph. The gray area represents the shaded region.
A. y ≤ 3x + 4
B. y ≤ 3x – 4
C. y ≥ 3x + 4
D. y ≥ 3x – 4
Answer: C
Step-by-step explanation:
1. The graph indicates that the line intersect the y-axis at -4.
2. Then, you must choose any point that are located within the region and replace them to see if the inequality is satisfied. Therefore, you have:
Point (0,2)
I hope this helps! :)
Can someone help me with this problem number 4
Answer:
m = -11/7
Step-by-step explanation:
change equation into slope-intercept form:
7y = -11x + 2
y = -[tex]\frac{11}{7}[/tex]x + 2/7
slope is the coefficient of the 'x' term
-2×-7y=30
7×+4y=18
×=
y=
Answer:
Answer is -7 Hope this helps :D
Step-by-step explanation:
write an equation in slope intercept form (4,-2) (0,-5)
Answer:
y=-7/4x+5
Step-by-step explanation:
The line contains points at (4,-2) and (0,-5)
(y1-y2) / (x1-x2) = slope
(4,-2) =(x1,y1)
(0,-5) = (x2,y2)
(-2-5) / (4-0)
-7 / 4 = -7/4
y= -7/4x + b
plug in points for x and y to find b
-2=-7/4(4)+b
-2=-7+b
5=b
y=-7/4x+5
What is the median in the box plot?
50
60
70
80
90
100
Answer:75
Step-by-step explanation:
50,60,(70,80),90,100
70+80=150
150÷2=75
Therefore, 75is the median
How many solutions does x2 - 2x + 9 = 0 have and what type are they? Do NOT find the
actual solutions.
Answer:
3
Step-by-step explanation:
Plssss help with answer !!!!!....
Answer:
Step-by-step explanation:
From the graph, the initial distance of the cyclist decreases with time before it starts to increase at the same rate.
i. When t = 60 minutes,
distance = (60 -60)
= 0
ii. When t = 120 minutes,
distance = (120 -60)
= 20 km
This implies that the endpoint of the cyclist's race was 20 km from the water station which took 60 minutes. So that on meeting the endpoint, the cyclist cycled back towards the water station at the same rate.
Mean = 25
Standard Deviation = 3.8
P(X
Find the value of k.
Round to 2 decimal values.
Answer:
The normal distribution is explained for the solution of this question.
Step-by-step explanation:
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.
Mean = 25, Standard Deviation = 3.8
This means that [tex]\mu = 25, \sigma = 3.8[/tex]
So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{X - 25}{3.8}[/tex]
If P(X > k) = a
We have to find [tex]X = k[/tex] when Z has a pvalue of 1 - a.
If P(X < k) = a
We have to find [tex]X = k[/tex] when Z has a pvalue of a.
at the market Miss Winn bought 3/4 IB of grapes and 5/8 idea of cherries how many ounces of grapes did Miss win by
Answer:
12 oz of grapes
Step-by-step explanation:
1 lb = 16 oz so 16*3/4 = 12