Answer:
The value is [tex]E =19.6 [/tex]
Step-by-step explanation:
From the question we are told that
The mean of Jo cows is [tex]\= x_1 = 1350[/tex]
The standard deviation of Jo cow is [tex]s_1 = 50[/tex]
The mean of Val cows is [tex]\= x_2 = 1420 [/tex]
The standard deviation of Val cows is [tex]s_2 = 50[/tex]
The sample size for both Val and Jo is n = 25
Let assume that the level of significance is [tex]\alpha = 0.05[/tex]
Generally from the normal distribution table the critical value of [tex]\frac{\alpha }{2}[/tex] is
[tex]Z_{\frac{\alpha }{2} } = 1.96[/tex]
Generally the margin of error is mathematically represented as
[tex]E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }[/tex]
Hence margin of error for Jo is
=> [tex]E = 1.96 * \frac{50}{\sqrt{25} }[/tex]
=> [tex]E =19.6 [/tex]
The total cost in dollars to buy calculator sets for the students in Mr. Engle’s math class can be found using the function C = 75.95 s + 12.25, where s is the number of calculators purchased. If there are at least 27 students but not more than 31 students in Mr. Engle’s math class, what is the range of the function for this situation?
A {2062.90, 2138.85, 2214.80, 2290.75, 2366.70}
B 0 < c ≤ 2366.70
C 0 < s ≤ 31
D {27, 28, 29, 30, 31}
(60)x = 1, what are the possible values of x? Explain your answer.
Answer:
[tex]\frac{1}{60}[/tex]
Step-by-step explanation:
Problem:
The possible values of x in the equation (60)x = 1;
Solution:
Such a problem like this in which the highest power of the unknown is 1 will have just one solution.
60x = 1
To solve this, we take the multiplicative inverse of 60;
the multiplicative inverse of 60 = [tex]\frac{1}{60}[/tex]
Use this inverse to multiply both sides of the expression;
[tex]\frac{1}{60}[/tex] [tex]x[/tex] 60x = 1 x [tex]\frac{1}{60}[/tex]
x = [tex]\frac{1}{60}[/tex]
If you can walk 3 miles in an hour, how many miles can you walk in 30 minutes, given the
3
same pace?
A. 1 1/6 miles
B. 1 2/3miles
C. 6 2/3miles
D. 1 1/3 miles
Both questions in picture! Will give brainliest!!
Answer:
See belolw
Step-by-step explanation:
[tex]P=53\text{ft}[/tex]
[tex]P = a+b+c[/tex]
[tex]53=2x-15+x+1+3x-29[/tex]
[tex]53=6x-43[/tex]
[tex]96=6x[/tex]
[tex]x=16[/tex]
[tex]a=2x-15[/tex]
[tex]a=2(16)-15[/tex]
[tex]\boxed{a=17}[/tex]
[tex]b=x+1[/tex]
[tex]b=16+1[/tex]
[tex]\boxed{b=17}[/tex]
[tex]c=3x-29[/tex]
[tex]c=3(16)-29[/tex]
[tex]\boxed{c=19}[/tex]
Answer:
1. x=16, a=17, b=17, c=19
2. k=-2
Step-by-step explanation:
1.
We can set up an equation where all the labeled sides add up to 53, and then find x:
(2x-15)+(x+1)+(3x-29)=53
6x-43=53
6x=96
x=16
Now that we know x, we can plug it back in to the expressions of the triangles to find their side lengths:
a=2(16)-15=17
b=16+1=17
c=3(16)-29=19
2.
Reminder: the slope of a line is its change in y over its change in x. We can then set up an equation:
[tex]\frac{2-k}{k-(-3)}=4\\\frac{2-k}{k+3}=4\\2-k=4k+12\\5k=-10\\k=-2[/tex]
6. A spinner is divided into 8 equals sections and the sections are labeled 1 through 8. What is the probability of a success and a failure for this experiment? P (success) = one-fourth; P (failure) = Seven-eighths P (success) = one-fourth; P (failure) = Three-fourths P (success) = three-fourths; P (failure) = one-fourth P (success) = seven-eighths; P (failure) = One-eighth
Answer:
P (Success) = 1/8
P (Failure) = 7/8
Step-by-step explanation:
It is provided that a spinner is divided into 8 equals sections and the sections are labeled 1 through 8.
Only one section is considered as success and the remaining seven are failures.
So, the probability of a success is,
P (Success) = 1/8
And the probability of a failure is,
P (Failure) = 7/8
Answer:
a
Step-by-step explanation:
what is square root of √120 please help me ?
Answer:
The square root of 120 is about 10.95
Step-by-step explanation:
for every 5 hours that he works, andre is paid $60.20.
how much is he made in hour 1?
how much did he make in hour 2?
how much did he make in hour 3?
how much did he made in hour 4?
how much did he make in hour 5?
Answer:
here it is
Step-by-step explanation:
Simply divide 5 INTO 60.20 to get $ per hour.
Another way of saying this is divide $60.20 BY 5.
what is the y intercept of the equation shown below?
a -1/2
b -2
c 0
d 4
Please help, will mark brainliest for the correct answer
Answer:
C. 23/21
Step-by-step explanation:
HELP ASAPPPP
(8x - 14)*
(2x + 4)*
Answer:
X is 17
Step-by-step explanation:
Evaluate: -8/9 + 4/9 - 2/9
A. -14/9
B. -2/3
C. 10/9
D. -1/3
Answer:
-2/3
Step-by-step explanation:
Add the first two then subtract
The answer to the equation is B, [tex]-\frac{2}{3}[/tex]
First, you must add the the fractions. You add the numerator because all three fractions have like denominators.
[tex]-\frac{8}{9} +\frac{4}{9} -\frac{2}{9}=\frac{6}{9}[/tex]
Then, you must simplify [tex]-\frac{6}{9}[/tex]
[tex]-\frac{6}{9} =-\frac{2}{3}[/tex]
The answer to the equation is [tex]-\frac{2}{3}[/tex]
what is the difference between the mean and the median of the set ( 3 ,8 ,10 ,15)
Answer:
You can think of the mean being acually mean because you have to do more work. When solving for the mean you add all the answers together then divide by the amount of numbers you have. For example, you have the numers (1, 2, 3) add them together (1+2+3) to get 6 then divide by 3 (6/3) to get a mean of two. The median is also fairly easy to remember. You line your numbers up least to greatest, left to right. and mark one off of each side at a time. If you have a even amount of numbers and reach the center, you add the two centers together then divide by to to get the median. If you have an odd amount of numbers, there should be one in the exact center left over.
Step-by-step explanation:
Mean) 3+8+10+15=36, 36/4=9 ANSWER=9
Median) 8+10=18, 18/2=9 ANSWER=9
In the case, the mean and median are the same and depending on context you could choose either method. It also helps that there is no outlyer. If there were on I would recomend finding the median.
Given g(x) = 2x - 4, solve for x when g(x) = 0
Answer:
2
Step-by-step explanation:
2×2=4 4-4=0 so the answer is 2
Answer:
2
Step-by-step explanation:
g(x)=2x-4
x=? when g(x)=0
we know,
g(x)=2x-4
0=2x-4
4=2x
x=4/2
x=2#
Evaluate -8a - b if a = 10 and b = 6
-86 is the value of -8a-b when a = 10 and b = 6.
What is Expression?An expression is combination of variables, numbers and operators.
The given expression is -8a-b
a and b are the variables in the given expression.
Minus is the operator of subtraction in the expression.
The value of a is given as 10 and b is 6.
Now we have to substitute the values of a and b in expression.
-8(10)-6
Eight times of ten is eighty
-80-6
Minus eighty minus six is minus eighty six.
-86
Hence, -86 is the value of -8a-b when a = 10 and b = 6.
To learn more on Expressions click:
https://brainly.com/question/14083225
#SPJ2
help me please!!!!!!!!!!!!!!!!!
im not for sure but Step-by-step explanation: 3,000=102938884.00919377299
Answer:
3,000=102938884.00919377299
Step-by-step explanation:
☺ ANSWER THIS MATH QUESTION FOR ME ☺
IGNORE THE ALREADY SELECTED ANSWER CHOICE !
Answer:
D, x = 7
Step-by-step explanation:
This is essentially a transformed square root function
√(30-2x) - x can be rewritten as -x + √-2(x - 15)
Answerr this. Will also give branliest. helpp
Answer:
Angles 1 and 9 are corresponding angles
2 and 3 same side interior angles
8 and 12 are OTHER
6 and 12 are alternate interior
1 and 2 are linear pairs
15 and 11 are alternate interior
8 and 9 are same side interior
2 and 4 are corresponding
Step-by-step explanation:
Use the graph!
Brainliest??Hope it helped!
∠1 and ∠9 = Corresponding angles
∠2 and ∠3 = Same side interior angles
∠8 and ∠12 = Other
∠6 and ∠12 = Alternate interior angles
∠1 and ∠2 = Lineae pair
∠15 and ∠11 = Alternate interior angles
∠8 and ∠9 = Same side interior angles
∠2 and ∠4 = Corresponding angles
How do you write 2x^5-9x^4-2x^2+10 in standard form?
Answer:
[tex]2x^5-9x^4+0x^3-2x^2+0x+10[/tex]
Step-by-step explanation:
A polynomial is in standard form when its terms are ordered from highest to lowest degree.
If the polynomial is missing terms, it must be completed by setting their coefficients to 0.
The given polynomial is:
[tex]2x^5-9x^4-2x^2+10[/tex]
The terms are ordered, but it's incomplete. The terms with exponent 3 and 1 must be included with zero coefficient.
Thus the polynomial in standard form is:
[tex]\boxed{2x^5-9x^4+0x^3-2x^2+0x+10}[/tex]
Explain! Prize! Thank you!!!!
Answer:
B.
Step-by-step explanation:
The answer is B since it cost $3 for 5, it would be $6 or double for 10.
Answer:
B. $6
Step-by-step explanation:
3 divided by 5 = 0.6
0.6 multiplied by 10 = $6
(I might be wrong. Sorry if I am. Don't get mad at me)
Hope I helped :)
Please consider Brainliest :)
Jeff lost 50 acres of wheat because of a late freeze. This was 25% of his total wheat crop. How many acres of wheat were planted? This is a type 2 percent problem: 25 percent of what number is 50?
Answer:
200
Step-by-step explanation:
I put the numbers in a cross multiply scenario:
So it looks like 25/100 and 50/?
So multiply 50 by 100.
Then divide that by 25!
Happy Halloween!
Mrs. Lovejoy makes flower arrangements. She has 36 red carnations, 60 white carnations, and 72 pink carnations. Each arrangement must have the same number of each color. What is the greatest number of arrangements she can make if she uses every carnation? Using the information from the question above, how many of each color carnation will Mrs. Lovejoy have in each arrangement? **Enter in your answer as a list using commas in the following order "# of red, # of white, # of pink"
Answer:
36
Step-by-step explanation:
-3
3m2n)
Which expression is equivalent to
?
6mn-2
Answer:
a
Step-by-step explanation:
0.435 repeated into a fraction
Answer:145/333
Step-by-step explanation:
Answer:
see the picture hope this helps
HELP ME PLS IT"S DUE TODAY. JUST GIVE ME THE ACTUAL ANSWER IF YOU KNOW IT PLUS ILL GIVE YOU 5 STARS!!!!
Answer:
the answer is we dont know cuz theres no question
ok then it should be the bag wit 8lb
Answer:
Obviously, it's the 8lb bag of dog food because it's the cheapest, but it may vary with the type of animal (a dog in this case).
need help pease its due at 11;59pm today explian
Answer:
65
Step-by-step explanation:
you add all the numbers inside.
80+35= 115
You have to make sure it equals to 180 to find angle 1.
Therefore, 180-115=65.
Find the slope of 12,-7 and 2,-2
Answers: -0.5 m
here you go
37.28 for 2 pair of jeans how much did they cost
Answer:
One pair of jeans costed 18.64
Step-by-step explanation:
37.28 divided by 2.
How much greater is (2^3)^2 than 2^3 x 2^2
Answer:
(2^3)^2/2^3X2^2 = 6/4 = 3/2
Step-by-step explanation:
(2^3)^2 = 6^2 = 36
2^3 X 2^2 = 6 X 4 = 24
Answer:
(2^3)^2 is 32 greater than 2^3 * 2^2
Step-by-step explanation:
(2^3)^2 = 2^(3 * 2) = 2^6 = 64
2^3 * 2^2 = 8 * 4 = 32
Difference:
64 - 32 = 32
Answer: (2^3)^2 is 32 greater than 2^3 * 2^2
A school has a total enrollment of 800 students. Twenty percent of those students play a sport. How many play a sport?
Answer:
160
Step-by-step explanation:
... ...... ..
....i
Answer It should be 40%
What is the final cost of a "$29" meal with a %20 tip?
Last one!!
Answer:
34.8 dollars
Step-by-step explanation:
multiply 29 by 1.2 to get the final answer
