Answer:
12
Step-by-step explanation:
4 is half of 8
12 is half of 6
You collect a random sample of size n from a population and calculate a 98% confidence interval. Which of the following strategies produces a new confidence interval with a decreased margin of error?
A: Use a 99% confidence level.
B: Use a 95% confidence level.
C: Decrease the sample size.
D: Use the same confidence level, but compute the interval n times. Approximately 2% of these intervals will be larger.
E: Nothing can guarantee that you will obtain a larger margin of error. You can only say that the chance of obtaining a larger interval is 0.02.
Answer:
B: Use a 95% confidence level.
Step-by-step explanation:
In the case when the random sample size from a population is collected and it determined the 98% confidence interval so that decrease the margin of error is to use a 95% confidence interval as it is needed to have a less critical value
So according to the given options, the option B is correct
If X:Y = 4:5 and x+y=144, then the values of x and y respectively are
A= 74 and 70
B= 70 and 74
C= 80 and 64
D= 64 and 80
Answer:
b
Step-by-step explanation:
domt knowsjsbjsodnsodndjdns
find the value of given expression
[tex] \sqrt{312 \times 312} [/tex]
Step-by-step explanation:
[tex]
\sqrt{312 \times 312} \\ = \sqrt{312 ^{2} } \\ = 312
[/tex]
Hope it will help :)❤
Answer:
√{312×312}=√312²=±312 is your answer
help me please! someone?
Answer:
105 for 3 hours
Step-by-step explanation:
First we have to find that how much he is charged for 1 hour.
140 : 4 = 35 per hour
Then we have to find how much he is charged for 3 hours by multiplying with 3.
3 x 35 = 105 per 3 hours
Answer:
£105
Step-by-step explanation:
let y represent the unknown amount
£150 = 4 hrs
y = 3 hrs
we then cross multiply
£150 x 3 hrs = y x 4 hrs
450= 4y
divide both sides by 4
450/4 = 4y/4
105 = y
How to find a side of a square when area is given?
Answer:
length =√area use this formula
The side length of square can be found by taking the square root of Area.
What are Squares?Square are closed polygons which consist of four sides and four angles.
Each angle is 90 degree.
All the sides are of equal length.
So, by the definition of square, we know that the side lengths of square are equal.
The formula to calculate the area of the square is,
Area = a², where a is the length of one side of the square.
Let Area be given, let it be equal to A.
Then,
a² = A
Taking square root on both sides,
a = √A
Hence the side length is found by taking the square root of Area.
Learn more about Area of Square here :
https://brainly.com/question/30556035
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Someone help me PLZZ
Answer:
5/3
Step-by-step explanation:
The slope is the coefficient next to the x. Therefore, the slope is 5/3.
Answer:
m= 5/3
Step-by-step explanation:
Math wizzz
Worked it out
And online calculator verified!
What is 7/10 of 650?
Answer:
455
Step-by-step explanation:
I answered first, but forgot to answer here.
PLEASE HELP ASAP!! DUE TODAY
Answer:
Step-by-step explanation:
when 1/2 inch equals 4 feet the room is 2.25 inches, then
2 1/4 = 8/4 + 1/4 = 9/4
9/4 inches is the scale distance of the room
each 1/2 inch is 4 feet so divide 9/4 by 1/2 then multiply that by 4 to find the distance of the room
9/4 ÷ 1/2 = 9/4
9/4 * 2/1 = 18/4
18/4 = 9/2
9/2 * 4 feet = 9/2 * 4/1
9/2 * 4/1 = 36/2
36/2=18
the room is 18 feet across
then if the scale is 2/3 of an inch is 4 feet , then
2/3 * 9/4 = 18/12
18/12 = 3 inches is the scale size of Quinto's room
Erik and Heather weigh a total of 260 pounds. If Erik weighs 135 pounds, how much does Heather weigh?
Answer:
subtract 260-135=120
Step-by-step explanation:
Approximately how much fuel can fit into a tanker truck with a radius of 4 feet and a height of 32 feet?
What is the slope of the line in this graph?
Answer:
90% sure it's 5/7
Step-by-step explanation:
-18+x=-x+12
This one ??
Answer:
X = 15
Step-by-step explanation:
Let's solve your equation step-by-step.
−18+x=−x+12
Step 1: Simplify both sides of the equation.
x−18=−x+12
Step 2: Add x to both sides.
x−18+x=−x+12+x
2x−18=12
Step 3: Add 18 to both sides.
2x−18+18=12+18
2x=30
Step 4: Divide both sides by 2.
2x/2 30/2 = 15
What two numbers multiply to get 7 and add to get -8
Answer:
-7 and -1
Step-by-step explanation:
-7x-1=7
-7-1=-6
-7 and -1
- have a great day
Find the area of the
trapezoid (explain ur answer)
Answer:
49
Step-by-step explanation:
8*7=56
7*6=42
56+42=98
98/2=49
how many oz are in 1 gallon and a cup
72038302229877777389Step-by-step explanation:
Explain why the relation represented by each equation is or is not linear.
a. y=2+3x
b. y=2x(x - 5) - 2x2
C. y=4x2
d. y= 500
Please help T-T
Answer:
A, b, c, y are linear becouse every value of domain has one value in range
Step-by-step explanation:
If you need any explanation in it or anything on math you can communicate with me on Whats on this number +201557831028 or in email or face or anything
suppose the expression was (12-3) to the second power would you have to still simplify 3 to the second power first explain
You would take which ever number is taken to the power sat it was 12 to the power of 2+4, you would take the 12 not the 4, Hope this helps!
WILL MAKE BRAINLIST!!!!!!
Explain when you should reverse the inequality symbol when solving an equality.
Answer:
To do this, subtract 6 from both sides. − 3_x_ + 6 − 6 > 12 − 6. −3_x_ > 6. Now divide both sides of the inequality by −3. Since you're dividing by a negative number, you need to flip the inequality sign.
Step-by-step explanation:
A test of a new car results in 370 miles on 10 gallons of gas. How far could you drive on 65 gallons of gas?
Show your work
Answer:
2405 miles
Step-by-step explanation:
370÷10 = 37
37×65 = 2405
Find the X & Y value
Answer:
Step-by-step explanation:
x = 72°
y = 61°
Using Pascal triangle, write down the binomial expansion of
[tex] {(1+y)}^{8} [/tex]
simplifying all the terms.
Answer:
1 + 8y + 28y² + 56y³ + 70[tex]y^{4}[/tex] + 56[tex]y^{5}[/tex] + 28[tex]y^{6}[/tex] + 8[tex]y^{7}[/tex] + [tex]y^{8}[/tex]
Step-by-step explanation:
For the expansion of [tex](1+y)^{8}[/tex]
Using the row of Pascal's triangle for n = 8 , that is the coefficients are
1 8 28 56 70 56 28 8 1
Decreasing powers of 1 from [tex]1^{8}[/tex] to [tex]1^{0}[/tex]
Increasing powers of y from [tex]y^{0}[/tex] to [tex]y^{8}[/tex]
Then
[tex](1+y)^{8}[/tex]
= 1 . [tex]1^{8}[/tex].[tex]y^{0}[/tex] + 8. [tex]1^{7}[/tex].[tex]y^{1}[/tex] + 28. [tex]1^{6}[/tex].y² + 56. [tex]1^{5}[/tex].y³ + 70. [tex]1^{4}[/tex].[tex]y^{4}[/tex] + 56. 1³.[tex]y^{5}[/tex] + 28. 1².[tex]y^{6}[/tex] + 8. [tex]1^{1}[/tex].[tex]y^{7}[/tex] + 1. [tex]1^{0}[/tex].[tex]y^{8}[/tex]
= 1 + 8y + 28y² + 56y³ + 70[tex]y^{4}[/tex] + 56[tex]y^{5}[/tex] + 28[tex]y^{6}[/tex] + 8[tex]y^{7}[/tex] + [tex]y^{8}[/tex]
Answer:
y⁸ + 8y⁷ + 28y⁶ + 56y⁵ + 70y⁴ + 56y³ + 28y² + 8y + 1Step-by-step explanation:
Given binomial
(1 + y)⁸Expanding using Pascal triangle (attached)
Replace a and b with y and 1 in the bottom row of the triangle
(1 + y)⁸ = (y + 1)⁸ = y⁸ + 8y⁷ + 28y⁶ + 56y⁵ + 70y⁴ + 56y³ + 28y² + 8y + 1ABC is reflected over the y-axis what are the vertices of A'B'C'
Please help this is for my final
Answer: It is D
Step-by-step explanation: its is the placement Pretty basic.
Answer: D
Step-by-step explanation:
ap3x verified!!!
Order the numbers from least to greatest 3/10, 0.34, 27%, 3/8
Answer:
3/10,3/8,27%,0.34
Step-by-step explanation:
Answer:
27%, 3/10, 0.34, 3/8
Step-by-step explanation:
I just made them all decimals (same as percent)
3/10=0.30
3/8= 0.375
hope this helps pls mark brainleist
HELPPPPP PLSSSSSSSSSWSSSS
Answer:
D.
Hope that helps!
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
Hope this helps
Joon is buying lotion for her mom's birthday. The lotion was originally priced at $18 but is now on sale for 20% off. How much will Joon pay for the lotion?
Answer:
Discount price= $14.4
Step-by-step explanation:
Giving the following information:
Original selling price= $18
Discount rate= 20% = 0.2
To calculate the discount price, we need to use the following formula:
Discount price= selling price * (1 - discount rate)
Discount price= 18 * (1 - 0.2)
Discount price= $14.4
what is your first step when solving x/15 = 3/5? Explain
I need this by tonight
Answer:
Let's solve your equation step-by-step.
x
15
=
3
5
Answer:
x=9
Step-by-step explanation:
answer these 4 questions
Answer:
11) A=84.7m²
12) A=75.2km²
13) A=28.05ft²
14) A=48yd²
Step-by-step Explanation:
11) A = 1/2(bh)
A = 1/2(14×12.1)
A = 1/2(169.4)
A = 84.7m²
12) A = 1/2(bh)
A = 1/2(16×9.4)
A = 1/2(150.4)
A = 75.2km²
13) A = 1/2(bh)
A = 1/2(5.1×11)
A = 1/2(56.1)
A= 28.05ft²
14) A = 1/2(bh)
A = 1/2(16x6)
A = 1/2(96)
A = 48yd²
Answer:
11) A=84.7m²
12) A=75.2km²
13) A=28.05ft²
14) A=48yd²
Step-by-step explanation:
please help me complete this
https://easel.teacherspayteachers.com/activities/student/18109307
Answer:
can't see the question love
Two trains, train a and train , weigh a total of 466 tons. Train A is heavier than train b. The difference of there weights is 326 tons. What is the weight of each train
Answer: A = 396 tons
B = 70 tons
Step-by-step explanation:
From the question,
Weight of A + Weight of B = 466
Weight of A - Weight of B = 326
A + B = 466 ......... i
A - B = 326 ..........ii
Subtract equation ii from I
2B = 140
B = 140/2
B = 70 tons
A = 466 - 70
A = 396 tons
What is 3/4 divided by 2
Answer:
[tex] \frac{3}{8} [/tex]
Step-by-step explanation:
[tex] \frac{3}{4} \div 2 \\ \\ = \frac{3}{4} \times \frac{1}{2} \\ \\ = \frac{3 \times 1}{4 \times 2} \\ \\ = \frac{3}{8} [/tex]