Answer: I guess High School is as bad as my big sister says it is.
Step-by-step explanation:
I'm in 8th grade, I'm going to highschool this yearrrr! Poor me...
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
A circle has a radius of twenty-one centimeters.
Find the circumference. Round your answer to the nearest hundredth. Use 3.14 for π.
Answer:
313 is the answer
Step-by-step explanation:
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How many ratios ratios are needed to solve a percent problem?
Answer:
two ratios
Step-by-step explanation:
you need two to be able to solve it
Answer:
2 ratios
Step-by-step explanation:
Someone please help with this math problem!!!
Answer:
15
Step-by-step explanation:
Find the equation of the line shown
Answer:
x+1
Step-by-step explanation:
How can you compare two ratios that are in fractional and percent form?
Hi, can someone help me with my math homework? I just need help with B.
Answer:
8
Step-by-step explanation:
========================================================
Explanation:
Let's convert the mixed number 5 & 1/3 to an improper fraction.
The formula to use is
a & b/c = (a*c + b)/c
So,
a & b/c = (a*c + b)/c
5 & 1/3 = (5*3 + 1)/3
5 & 1/3 = 16/3
Imagine you had 16 pieces of candy, and imagine you wanted to divide that up amongst 3 friends. Each friend would get 15/3 = 5 whole pieces. There would be 1 candy left over. The 5 and 1 help then form the 5 & 1/3. So this is one way to visualize how 5 & 1/3 is the same as 16/3.
Another way to see why this works is to note how 16/3 = 5.333 approximately. The '5' before the decimal point is the whole part of the mixed number 5 & 1/3; the decimal portion 0.333 is the approximate value of the fractional part 1/3.
------------------
The total length of fencing needed is 16/3 yards. Each section is 2/3 of a yard long. Since both denominators are "thirds", we can ignore them. An equivalent problem is this: "He needs 16 yards of fencing and each section is 2 yards long"
Based on the new problem without fractions involved, we can see that he'll need 16/2 = 8 sections in total.
You should find that dividing (16/3) over (2/3) will lead to 8 as well. You could say this:
(16/3) divide (2/3) = (16/3)*(3/2) = (16*3)/(3*2) = 48/6 = 8
-------------------
An alternative method:
Let's start with 2/3 of a yard. That doubles to 4/3 which is the same as 1 & 1/3. Think of it as 4/3 = (3+1)/3 = 3/3+1/3 = 1+1/3 = 1 & 1/3.
Next, we'll double 1 & 1/3 to land on 2 & 2/3. You simply multiply each '1' by 2 to end up with those '2's shown.
Now we'll double 2 & 2/3 like so:
2*(2 & 2/3) = 2*(2 + 2/3) = 4 + 4/3 = 4 + (1+1/3) = 5 + 1/3 = 5 & 1/3
The act of doubling exactly three times leads to us ultimately multiplying by 2*2*2 = 8, so he needs 8 sections that are each 2/3 of a yard long.
-------------------
Whichever method you prefer, the final answer is 8 sections.
PLEASE help me this is due tomorrow!!
Frodo goes to New Army and buys two pairs of Jeans for $19.99 each, 3 shirts at $7.99 each, and a pack of socks for $5. He has a coupon for 25% off his
entire purchase. Sales tax Is 7 3/4%. What is the total cost after the discount and tax? $
Answer:
$55.72 that is the rounded to the nearest cent the exact answer is 55.72021875
Some friends went hiking. The very top of a trail was a total of 26 miles from town, where the friends began their journey. They drove 8 more miles than they walked on the trail. How far did the friends walk? How far did the friends drive?
Please give steps.
they walked 52 and drove 16
26x2=52 and 8x2=16
Which of the following fractions is equivalent to 3/8
️ 6/14
️9/24
©️4/9
R 15/35
plzzz help I'm on a test I'll give u brainliest
Answer:
9/24
Step-by-step explanation:
This is because when we multiply 3/8 with 3 in both numerator and denominator we get,
[tex] \frac{3 \times 3}{8 \times 3} = \frac{9}{24} [/tex]
Hence, 9/24 is required answer.
Answer:
9/24
Step-by-step explanation:
Fraction Equivalent Fractions
3/8 6/16 9/24
Please help im desperate. :)
Answer:
b is ya answer hope you have a blessed day
Step-by-step explanation:
Answer:
C undefined sorry im rushing
Which points justify shading inside the conic inequality 8x² – 12x + 4y² + 4y – 20 ≤ 0? Check all that apply.
(–1, –2)
(–1, –1)
(0, 0)
(0, 2)
(1, –2)
Answer:
B. (–1, –1)
C. (0, 2)
E. (1, –2)
Step-by-step explanation:
plugged in the answers into (x) and (y)
The points (0, 0), (-1, -1), and (1,-2) inside the conic inequality option (B), (C), and (E) are correct.
What is inequality?It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.
We have:
Conic inequality:
8x² – 12x + 4y² + 4y – 20 ≤ 0
After plotting the above inequality on a coordinate plane we will get an ellipse:
From the graph:
The points:
(0, 0), (-1, -1), and (1,-2) inside the conic inequality.
Thus, the points (0, 0), (-1, -1), and (1,-2) inside the conic inequality option (B), (C), and (E) are correct.
Learn more about the inequality here:
brainly.com/question/19491153
#SPJ5
how many factors of 10 are in 10 of the third power?
Answer:2 times 5 equals 10
Step-by-step explanation:
"The factors of 10 are 1, 2, 5, and 10. You can also look at this the other way around: if you can multiply two whole numbers to create a third number, those two numbers are factors of the third. 2 x 5 = 10, so 2 and 5 are factors of 10." From ww.infoplease.com great resource
The required factor of 10 in 10 of the third power is 3.
What are the factors?A number or algebraic expression that evenly divides another number or expression—i.e., leaves no remainder—is referred to as a factor.
Here,
10 of the third power = 10³
10³ = 10×10×10
The expression 10×10×10 has 3, 10's
Thus, the required factor of 10 in 10 of the third power is 3.
Learn more about Factors here:
https://brainly.com/question/24182713
#SPJ5
What is the value of n when 13+5n=54
Answer:
n = 8.2
Step-by-step explanation:
54 - 13 = 41
5n = 41
41/5 = 8.2
n=8.2
Find the greatest common factor of 8m and 12m^3
Element X decays radioactively with a half life of 9 minutes. If there are 860
grams of Element X, how long, to the nearest tenth of a minute, would it take
the element to decay to 94 grams?
Answer:28.7 minutes
Step-by-step explanation:
what do I do plssss I don’t know it’s a number trick htw
Answer:
no sé cómo se hace porque estoy en primaria
help me pls this is 8th grade math fastest answer gets brainliest show work pls
Answer:
1: x ^11
2: y ^12
3: x^ 7
Step-by-step explanation:
In 1 we give the sum
In 2 we give the multiple
In 3 we minus
Answer:
1. x^11 2. x^7 3. y^12
Step-by-step explanation:
1. you add the exponents together 8+3 = 11 2. you subtract the exponents 9-2=7 3. you multiple the exponents 4x3=12
Please help math sucks
Please help out , i’ll mark the brainliest answer
Answer:
Step-by-step explanation:
7) The tangent angles are 90° each.
The angles of a quadrilateral add up to 360°, so ? = 360°-90°-90°-73° = 107°.
8) Solve this the same way as question 7). ? = 360°-90°-90°-57° = 123°.
Questions 9) and 10) are cut off, so I assume you don't need to know those.
Emily needs 21 feet of wire. Andy needs 15 feet of wire. How much will each of them spend for wire?
Answer:
$540.
Step-by-step explanation:
Aprrox some wire cost $15. And 21 x 15= 315. And 15 x 15= 225, so you add and you should have $540.
When simplified, the expression shown below can be written as which choice shown?
(x+3)(x-3)-(x+5)(x-5)
(1) 2(x-17)
(3) -34
(2) 2(x-8)
(4) 16
Please help with question!
What is 4 divided by 888
Answer:
0.0045045045
Step-by-step explanation:
Have a good day I hope this helps! :)
Willy is creating a garden this is the diagram of willy's garden what is the area of the garden he's going to build. 32ft,26ft,10ft driveway 20ft,7ft garden 14ft.
Answer:
the answer is 230 ft squared
Step-by-step explanation:
We can solve this by subtracting the area of the driveway from the entire rectangle
The area of a rectangle is , so multiplying 14 by 32, we get 448
Now we need to find the area of the driveway. We can split up the driveway into 2 rectangles, one big rectangle at the left and a tiny rectangle in the upper right.
To find the area of the big rectangle in the driveway, we multiply 10 by 20, getting 200.
To find the area of the tiny rectangle in the driveway, we subtract 20 from 26 to find the length, which is 6.
Now we need to find the width of the tiny rectangle. We can do this by subtracting 7 from 10, getting 3.
Multiplying 6 by 3, we get 18, so the area of the tiny rectangle is 18.
Adding 200 to 18, we get 218, so the area of the driveway is 218 ft squared.
Now we need to subtract 218 from 448.
448-218=230
DUE in a couple of minutes!!help me out with this question (geometry)
pls help !!!!!!!!!!!!!!!!
Answer: A. y = 4x + 3 is the correct answer.
Can someone help me on this plzzz??
Answer:
add to elimanate y.
Step-by-step explanation:
PLEASE HELPPPP ITS DUE IN 20 MINNNN
Answer: 2cm is the radius and 10 cm is the diameter.
Answer:
2 is the radius and 10 is the diameter!
Step-by-step explanation:
Good luck buddy!
Help I will be marking brainliest!!!
A. 4.95 feet
B. 21.44 feet
C. 22.58 feet
D. 21.99 feet
Show work, if possible. Thanks❤️
A color document measures 10 by 15 inches. It must be reduced so that the longest side measures 3 inches. What will the dimensions of the document be once it is resized?
Answer:
C
Step-by-step explanation: