Answer:
b
Step-by-step explanation:
a 95% confidence interval is found to be (24, 30). The sample standard deviation is 7.5, and the sample size is 25. If you wanted a smaller interval what could you do?
A. increase the confidence level to 99.7%.
B. increase the sample size to 36.
C. decrease the sample size to 20.
D. None of these.
Answer:B. Increase the sample size to 36
Step-by-step explanation:
First of all, the size of the sample must be greater than 30. Then the correct option is B.
What is a normal distribution?It is also called the Gaussian Distribution. It is the most important continuous probability distribution. The curve looks like a bell, so it is also called a bell curve.
A 95% confidence interval is found to be (24, 30).
The sample standard deviation is 7.5, and the sample size is 25.
First of all, the size of the sample must be greater than 30. Then we have to increase the sample size up to 36.
More about the normal distribution link is given below.
https://brainly.com/question/12421652
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the product of 5 and a number K is less than 60
Answer:
11
Step-by-step explanation:
The required inequality would be 5k < 60 which represents the product of 5, and the number K is less than 60.
What is inequality?Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.
To determine the product of 5 and a number K is less than 60
Here the word "Product" represents multiplication,
So the product of 5 and a number K would be 5×K = 5K
As per the given condition,
So the required inequality would be 5k < 60
Therefore, the required inequality would be 5k < 60 which represents the product of 5, and the number K is less than 60.
To learn more about the inequalities click here:
brainly.com/question/20383699
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The question seems to be incomplete the correct question would be
Find the inequality if the product of 5 and a number K is less than 60.
ZA is a supplement of 2B. ZA is a complement of LC, and m2B= 124. Thus,
m2B + m2
degrees.
What is 18.75 divided by 1 and 1/2
Answer: 12.5
18.75/1 ½ = 12.5
find solution and show work for: (3.4^17)4
Answer:
231.2
Step-by-step explanation:
first multiply 34 and 17 which will give you 578. Then put the decimal after the 7 because you only have one decimal in the tenths place: 57.8. Then multiply 578 by 4: 2312. Then put the decimal after the 1 to get 231.2
You deposit $1,200 in a savings account that earns simple interest at a rate of 3% per year. How much interest will you have earned after 3 years? Formula I= Prt
Answer: $ 1,311.27
Step-by-step explanation:
Hope this helps!
5/16 ÷ 5/12
3 1/5 • 2 3/4
6 3/8 ÷ 2 1/4
i need all of these to be reduced to lowest term, if someone could do a step by step process that'd be great. thank you :)
Answer:
1.) 3/4
2.) 44/5 or 8 4/5
3.) 17/6 or 2 5/6
Step-by-step explanation:
1.) 5/16 ÷ 5/12
To divide a fraction by another fraction, reciprocate (put the numerator to denominator and vice versa) the divisor then change the sign to multiplication:
5/16 × 12/5
5 × 12 / 16 × 5
Cancel out 5 since both numerator and denominator has it:
12 / 16
Divide both by 4:
12 ÷ 4 / 16 ÷ 4
3/4
2.) 3 1/5 • 2 3/4
You have to convert the fractions first to improper fractions by multiplying the denominator to the whole number then adding the numerator to the product:
3 1/5 = 3×5 + 1 = 16/5
2 3/4 = 2 × 4 + 3 = 11/4
Now you can multiply the numerator to numerator then denominator to denominator:
Since 16 is a factor of 4, you can cancel it out, which leaves 4:
16 / 5 × 11/4
4 × 11 / 5 × 1
44/ 5
3.) 6 3/8 ÷ 2 1/4
Convert to improper fraction:
6 3/8 = 6× 8 + 3 = 51/8
2 1/4 = 4 × 2 + 1 = 9/4
(51 × 4)/ (9×8)
51 × 1/ 9× 2
51 / 18
Divide by 3:
17/6
How would a line with the fraction (below the graph) look like on a graph. How do you know? PLEASE HELP!!! LOTS OF POINTS!!!
Answer:the line would be going down because - 5/3 is negative
Step-by-step explanation:the line would have a slope of - 5/3 so 5 down 3 right
Plz help! Is this right? Question is below!
Answer: I believe it's correct. Good Job! :D
Are Figures A and B congruent? Explain your reasoning.
Answer:
no
Step-by-step explanation:
figure b is wider than figure a
Answer:
no
Step-by-step explanation:
figure b is wider than figure a
Find the greatest common factor of 20 and 32.
A. 11
B. 8
C. 4
D. 2
Answer:
C
Step-by-step explanation:
1.The sales tax for a $49.30 sandals with a 8.25% sales tax is $
2.The total cost of the sandals is $
Answer:
$53.36
Step-by-step explanation
rationalise the denominator of 5√7 / √5
Rationalize the denominator of 5√7/ √5
Answer5√7 / √5
=> 5√7/√5×√5/√5
=> 5√7×5/(√5)^2
=> 5√35/5
=>√35
=> 5√7
So, the required answer is 5√7 .A continuous function graph shows unbroken lines or curves or part of a line or curve.
This is very true for a function that is continuous.
I don't understand (I'm getting a tutor)
Step-by-step explanation:
draw the last one by yourself.
im sure you can do it buddy.
good luck♥️♥️♥️♥️♥️.
why is algebra so hard
School was starting and James had $300 to spend on clothes. He bought a pair of shoes for$62.50, 3 shirts for $17.25 each, and 5 pairs of jeans at $27.75 each. How much change will James get back? *
Answer:
$47
Step-by-step explanation:
Multiply the quantities of each by the prices, then add it all together to find total spent. Subtract total spent from what he has to spend to find the change:
3 shirts x 17.25 = 51.75
5 jeans x 27.75 = 138.75
Total pent : 62.50 + 51.75 + 138.75 = $253.00
Change : 300 - 253 = $47.00
how do i simplify 6⁴ 6⁸ please help its dou today
Answer: 6^12 (or 2176782336)
When you multiply exponents with the same base, you add the exponents together. (e.g., x^m · x^n = x^m+n)
6^4 · 6^8 = 6^4+8 = 6^12
Simplify each of the following expressions and then put each simplified expression in order from greatest to least. −6+(−2) 2−6−2 2(−2)−2 −6+2 (−2−6)+22 6−(−2) −6−2 6+(−2) 2(−6)÷(−2) (−2)(6)
Answer:
8,6,4,3,2,-3,-4,-6,-8,-12
Step-by-step explanation:
Answer:
8
,
6
,
4
,
3
,
2
,
−
3
,
−
4
,
−
6
,
−
8
,
−
12
Step-by-step explanation:
SOLVE QUESTION 3 PART A AND B !! WILL GIVE BRAINLIST ..
Answer:
28π, reasonable
Step-by-step explanation:
A. Circumference is 2πr (or dπ), so we plug in 14 for r
this leaves us with 2π14, in which the 2 and 14 can multiply, so we get 28π
B. if we plug 28π into the calculator, you'll get 87.96, so 85cm is reasonable
While performing a vertical line test on a graph, you notice that the graph intercepts the vertical line twice. Which of the following correctly interprets the result of the test?
Because the vertical line intercepted the graph more than once, the graph is of a relation, but it is not a function.
Because the vertical line intercepted the graph more than once, the graph is of a function, but it is not a relation.
Because the vertical line did intercepted the vertical line exactly twice, the graph is a function and relation.
Because the vertical line intercepted the graph exactly twice, the graph is a function.
Answer:
The correct option is;
Because the vertical line intercepted the graph more than once, the graph is of a relation, but it is not a function
Step-by-step explanation:
Given that a function maps a given value of the input variable, to the output variable, we have that a relation that has two values of the dependent variable, for a given dependent variable is not a function
Therefore, a graph in which at one given value of the input variable, x, there are two values of the output variable y is not a graph of a function
With the vertical line test, if a vertical line drawn at any suitable location on the graph, intercepts the graph at more than two points, then the relationship shown on the graph is not a function.
Answer:
a
Step-by-step explanation:
(9,3) (0, 12) dtermine the slope of the line
Answer:
-1
Step-by-step explanation:
(9,3) (0,12)
(x1,y1) (x2,y2)
to find the slope, use this equation:
y2-y1/x2-x1
12-3/0-9
the slope is 9/-9 = -1
How do I simplify (-4x^2+2x-3)+(7-2x^2+x)???
Answer: -6x^2 + 3x + 4
Step-by-step explanation:
What is the slope-intercept form of the linear equation 2x + 3y = 6? Drag and drop the appropriate number, symbol, or variable to each box
Answer:
[tex]y=-\frac{2}{3}x+2[/tex]
Step-by-step explanation:
[tex]2x+3y=6\\\\2x+3y=6\\\\2x-2x+3y=6-2x\\\\3y=6-2x\\\\\frac{3y=6-2x}{3}\\\\ y=2-\frac{2}{3}x\\\\ \boxed{y=-\frac{2}{3}x+2}[/tex]
Hope this helps.
(–1) + 5 – (–6) – 5 =
Answer:
The answer is 5
Answer:
The answer is 5
Step-by-step explanation:
You are a photographer Acustomer wants you to make
a photographic display that is 4.} feet tall by 21 feet
wide. Each photograph is sa inches tall by 3 - inches
wide. The photographs are to be displayed with the
longer dimension vertical and with no overlaps.
How many photographs will fit on the display?
8
9
30
54
72
given : 2x+8=5x-13; prove x=7
Answer:
True
Step-by-step explanation:
The left side 22 is equal to the right side 22 , which means that the given statement is always true.
Step-by-step explanation:
If we want to prove that x is equal to seven, we should first solve the equation for x so:
2x + 8 = 5x - 13
We should first add 13 on both sides and subtract 2x from both sides:
2x + 8 + 13 - 2x = 5x - 13 + 13 - 2x
21 = 3x
We can then divide both sides by 3 to get:
x = 7
Divide. Write in simplest form.
2/3 divided by 1/5
Answer:
3 1/3 or 3.3(repeated)
Step-by-step explanation:
2/3 ÷ 1/5
= 2/3 × 5
= 10/3
= 3 1/3 or 3.3(repeated)
I hope this helped!
Can someone help me ?please
Answer:
maybe try 672cm?
A ladder is placed against a wall. The foot of the ladder is 3 feet away from the wall and the top of the ladder hits the wall 15 feet off the ground. What is the slope of the ladder?
Answer:
Slope = 15.2970585
Step-by-step explanation: