Answer:
confidence interval:
This tells us the degree of certainty or uncertainty that is existent in a sampling method. It gives us a range of values, telling us we are fairly sure that our true value or parameter lies within the range.
Degree of confidence:
This tells us that the confidence interval has captured the true/exact population parameter.
If we have 95% degree of confidence, we are 95% sure that that the exact/true parameter are in the confidence interval
1. What is the solution of n^2-49=0?
a.-7
b.7
c.+7
d. no solution
2.What is the solution of x^2+64=0?
a.-5
b.8
c.+8
d.no solution
3.What is the side length of a square with an area of 144x^2?
a.12
b.12x
c.+12x
d.no solution
4.What is the value of z so that -9 and 9 are both solutions of x^2+z=103?
a.-22
b.3
c.22
d.184
Answer:
it would be d for #1 because it has no solution for the question
bob's family has completed 40% of a trip. they have traveled 20 miles. how far is the trip?
Answer:
The trip is 50 miles long
Step-by-step explanation:
40 percent (or 20 miles) times 2 is 40 miles (80 percent).
Half of 40 percent is 20. And half of 20 is ten. 40 + 10 equals 50 miles! Hope this helps ^^
if any of you can help me AND get the right answer i will give you brainleist!
Answer:
7(1+2)
Step-by-step explanation:
So find the Greatest common factor first which is7 in this case
now we divide each number by 7
1+2 now
now we put that around parthesis and multiply it by 7
7(1+2)
Thats how you factpr
Check:
using distributive property
7+14, same answer.
Answer:
7(1+2)
Step-by-step explanation:
Find the factors of each number
7 has factors of 1,7
14 has factors of 1,2,7,14
The greatest common factor is 7
7*1 + 2*7
Factor out the 7
7(1+2)
Which equation represents the vertical line shown on the graph?
Answer:
The answer is A. X - 4 = 0 because it represents the vertical line shown on the graph
Calculate the area of a triangle ABC with altitude CD, given A (-3, -4), B (-6, 2), C (0, 0), and D (-4, -2). A. 14 square units b. 15 square units c. 18 square units d. 20 square units
Answer:
15
Step-by-step explanation:
took the test
The area of the triangle is 15 square units if the triangle ABC with altitude CD, given A (-3, -4), B (-6, 2), C (0, 0), and D (-4, -2) option (b) is correct.
What is a triangle?The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.
We have a triangle ABC with altitude CD.
The coordinates for the triangle are A (-3, -4), B (-6, 2), C (0, 0), and
D (-4, -2)
From the figure, the distance between C and D will be the height of the triangle:
We can calculate the distance between the points by using the distance formula:
[tex]\rm d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
h = √20
b = √45
Area of triangle = (1/2)bh = (1/2)√20×√45
= (1/2)30
= 15 square units
Thus, the area of the triangle is 15 square units if the triangle ABC with altitude CD, given A (-3, -4), B (-6, 2), C (0, 0), and D (-4, -2) option (b) is correct.
Learn more about the triangle here:
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Look at the picture and answer 1,2,3 and if it is right i will mark you brainless ❤️
Answer:
1) angle d
2) angle e
3) angle f
Step-by-step explanation:
0.5 kilograms is equal to how many grams
Answer:
500 grams.
Step-by-step explanation:
1kg = 1000grams.
0.5 * 1000 = 500grams.
Answer:
500 grams
Step-by-step explanation:
Because 1000grams = 1kg so 100 = 0.1
So to get this you multiply 0.5 with 1000
which is equivalent to the expression 2/3(d + 6)
Put these integers in order from least to greatest.
34, 0, – 17, - 56 , 5
Answer: -56 -17 0 5 34
Step-by-step explanation:
The more left you go on a number line the smaller it is
Answer:
-56,-17,0,5,34
Step-by-step explanation:
negatives are less than the positives so you start with the greatest negative and then go to the positives. The 0 is the origin.
7. Jose's mother is trying to decide whether or not she should buy a 12 ounce package of coffee on
sale for $7.50 or the same coffee for $9.00 per pound. Which is the better buy?
(10 Points)
Enter your answer
8. In question 7 what is the price per ounce for the $9.00 coffee?
(10 Points)
Enter your answer
Pls help :/
Answer:
7. She should choose the $9 coffe because its cheaper per ounce.
9. 57 cents
Step-by-step explanation:
$7.50/12 ounces = 63 cents
$9/16 ounces = 57 cents
Three apples (x) plus two
oranges (y) costs $16.
Five apples plus two
oranges costs $24. How
much do each apples and
oranges cost?
Answer:
Each apple cost $4
Each orange costs $2
Step-by-step explanation:
5x4=20
2x2=4
20+4=$24
The ratio of dogs to cats at an animal center 4to3. There are 16 dogs at the animal shelter. How many cats are their
Answer:
yo wassup
Step-by-step explanation:
Answer:
12 cats
Step-by-step explanation:
An angle measures 78° less than the measure of its complementary angle. What is the
measure of each angle?
Can someone answer my past questions thanks
Response:
I'll try if I can but
BRAINLIEST? Thanks!ill give the crown things
The school book fair has a great deal on the last day of the book fair! The first two books you buy costs a total of $7 and then each book purchased after that costs $3.50. How much do you owe if you purchase 8 books?
Answer:
28$
Step-by-step explanation:
You subtract 2 from 8 which is 6, you then multiply 6 times 3.50. Then add 7, which you get 28$
Answer:
$28.000000000000000000000000000000000
Step-by-step explanation:
Lol they're called, wait, what are they called again? ;-; no no I really forgot this time.
Onto the Problamo
We purchase 8 books in total. The first two books cost $7. So that 2/8 books purchased. now we need to purchase 6 more. Because It says: $3.50 per book, we do 3.50*6 or 3.50+3.50+3.50+3.50+3.50+3.50. so 7$ from the 2 books from the first statement plus $21 from the leftover 6 books.
7+21=28$
so I owe the school book fair $28 in the end
help me plzzzzzzzzzzzzzzzz i have untel 5
Answer:
First image:
27 / 9 = 3
2.7 / 0.9 = 3
33.3/0.09 = 3
Second image:
168 / 2 = 84
16.8 / 0.2 = 84
1.68 / 0.02 = 84
Step-by-step explanation:
27 ÷ 9 = 3
2.7 ÷ 0.9 = 3
0.27 ÷ 0.09 = 3
that's all I got, hope this helps!
Can someone answer this and tell me how to find it?[tex]x^{2} -x+6/x-3[/tex]
Answer:
go to symbolab
it gives steps and answers. Its also free
Step-by-step explanation:
How do you Estimate the Product of Decimals and Whole
Numbers
Estimate each product. You can round to the greatest position or
use compatible numbers. Show how you estimated.
Answer:
1) 8.5
2) 60
3) 69.3
4) 6.8
5) 3.6
6) 10.5
Step-by-step explanation:
Take out the decimal of the estimated factors and multiply. Count how far to left the decimal is in the factors. In the product, put the decimal as many to the left as it was in the factors. (ex. 6.93 x 42, 6.93 rounds to 6.9, 42 rounds to 40, 69 x 40 = 2,760, move the decimal over one for correct place value, 6.9 x 40 = 276.0 or 276)
hwo wants brainlist?
567x357+65-76=?
Answer:
Hewo, Mee
202408
Answer:
202408
Step-by-step explanation:
(I really do need help)
Answer:
90 i think
Step-by-step explanation:
The ratio of yellow flowers to the total number of flowers in a bucket 5 to 9.How many flowers are yellow if there are 45 flowers in all?
Answer:
if there is any pictures so i can answer it
y + 2 = -3(x - 4). What is the slope?
Answer:
m=-3
Step-by-step explanation:
in how many ways can 7 of 10 mice can be arranged in a row for geentics experiments?
Answer:
Number of arrangements is 604800
Step-by-step explanation:
Given
[tex]Mouse = 10[/tex] --- Total
[tex]Mouse = 7[/tex] --- Arrangement
Required
Determine the number of ways
Since, it is an arrangement, then we make use of the following permutation formula to answer this question.
[tex]^nP_r = \frac{n!}{(n-r)!}[/tex]
Where
[tex]n = 10[/tex]
[tex]r = 7[/tex]
So:
[tex]^nP_r = \frac{n!}{(n-r)!}[/tex]
[tex]^{10}P_7 = \frac{10!}{(10-7)!}[/tex]
[tex]^{10}P_7 = \frac{10!}{3!}[/tex]
[tex]^{10}P_7 = \frac{3628800}{6}[/tex]
[tex]^{10}P_7 = 604800[/tex]
Hence, number of arrangements is 604800
A 6-ounce drink costs $2.16. What is the unit rate (cost / 1 oz.)?
Answer:
im pretty sure its 0.36
Step-by-step explanation:
The unit rate or cost of one ounce of the drink is $0.36.
Given that:
A 6-ounce drink costs $2.16.
It is required to find the unit rate.
Now, the unit rate can be defined as the quantity of something with respect to another quantity.
Here, the unit rate is the cost of the drink per ounce of the drink.
Cost of 6-ounce drink = $2.16
Let the cost of one ounce drink = x
Here, the proportional concept can be used.
6 / 2.16 = 1 / x
Cross multiply.
6x = 2.16
Divide both sides by 6.
x = 0.36
Hence the unit cost is $0.36.
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Which division problem is represented with this model? 14÷3 15÷3 13÷2 15÷4
Answer:
The division model is 15 ÷ 3
Step-by-step explanation:
Required
Interpret the division model
A division model is of the form: Dividend ÷ Divisor
In the attached figure (in the question), there are 5 vertical partitions.
This vertical partitions represents the result of the model
Also from the question attachment;
The horizontal partitions on the left, if traced to the right side of the diagram means that each vertical partition is divided into 3 and this represents the divisor of the model.
So, we have:
[tex]Divisor = 3[/tex]
To get the quotient of the model, I'll make use of my attached file.
Counting the number of boxes, we can see that there are 15 boxes in total.
So, we have:
[tex]Dividend = 15[/tex]
Hence, the division model is: 15 ÷ 3
Answer:
1/5 ÷ 3
Step-by-step explanation:
pick the answer If you trust me ._.
Solve the following to find the quotient, 6.42 ÷ 3 =
Answer:
2.14
Step-by-step explanation:
Answer:
2.14
Step-by-step explanation:
hope this helps
Plz mark brainliest :)
It takes Jada 20 minutes to walk to school. It takes Andre 80% as long to walk to school. How long does it take Andre to walk to school?
6th grade math
(20 points)
a sixth grade football team has 3 quarterbacks, 4 running backs and 5 wide receivers what is the ratio of wide receivers to the total
Answer: 5.5
Step-by-step explanation:
Ratio
noun
the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
Which expression is equal to 2xx−2−x+3x+5?
Answer:
It's the fourth one
Following are the solution to the given expression:
Given:
[tex]\bold{\frac{2x}{x-2}- \frac{x+3}{x+5}}[/tex]
To find:
Expression =?
Solution:
[tex]\to \bold{\frac{2x}{x-2}- \frac{x+3}{x+5}}\\\\\to \bold{\frac{2x(x+5) -(x+3) (x-2)}{(x-2)(x+5)}}\\\\\to \bold{\frac{2x^2+10x -(x^2 -2x+ 3x-6)}{(x-2)(x+5)}}\\\\\to \bold{\frac{2x^2+10x -(x^2 +x-6)}{(x-2)(x+5)}}\\\\\to \bold{\frac{2x^2+10x -x^2 -x+6)}{(x-2)(x+5)}}\\\\\to \bold{\frac{x^2+9x+6}{(x-2)(x+5)}}\\\\[/tex]
Therefore, the answer is "last choice".
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The data represent the results for a test for a certain disease. Assume one individual from the group is randomly selected. Find the probability of getting someone who tests ​negative, given that he or she has the disease.
Answer:
[tex]Probability = 0.0470[/tex]
Step-by-step explanation:
This question has missing detail. (See attachment for the data)
Required
Determine the probability that a selected individual who has the disease test negative.
This type of probability is referred to as conditional probability.
First, we need to get the number of individuals who have the disease.
[tex]Disease =142 + 7[/tex]
[tex]Disease =149[/tex]
Next, we list out the number of individual who have the disease but is negative.
[tex]Negative = 7[/tex]
The probability is then calculated as:
[tex]Probability = \frac{Negative}{Disease}[/tex]
[tex]Probability = \frac{7}{149}[/tex]
[tex]Probability = 0.04697986577[/tex]
[tex]Probability = 0.0470[/tex] (approximated)