Answer:
Statement Reason
1. m∠AOC+m∠COB= 90° 1. complementary angles
2. m∠30° + BOC+m∠BOC=90° 2. Substitution
3. m∠BOC = 30° 3. Algebra
4. m∠AOC = 60° 4. Algebra
I think I got it
If the population of this town is 7428 in 15 years what was its initial population?
Answer:
About 495 people
Step-by-step explanation:
Divide 7428 by 15 years.
A baseball player hit a ball what that went 325feet.How many meters in this
Answer:
99.06 meters
Step-by-step explanation:
Answer:
≈ 99.1 meters
Step-by-step explanation:
1 foot = 0.3048 meters
325 / 3.281
99.055166
Best of Luck!
Suppose you are an expert on the fashion industry and wish to gather information to compare the amount earned per month by models featuring Liz Claiborne attire with those of Calvin Klein. The following is the amount ($000) earned per month by a sample of 15 Claiborne models:_______.
$3.5 $5.1 $5.2 $3.6 $5.0 $3.4 $5.3 $6.5 $4.8 $6.3 5.8 4.5 6.3 4.9 4.2
The following is the amount ($000) earned by a sample of 12 Klein models.
$4.1 $2.5 $1.2 $3.5 $5.1 $2.3 $6.1 $1.2 $1.5 $1.3 1.8 2.1
1. Find the degrees of freedom for unequal variance test.
2. State the decision rule for 0.01 significance level:
H0:μLC≤μCK; H1:μLC>μCK.
3. Compute the value of the test statistic.
Answer:
(1) The degrees of freedom for unequal variance test is (14, 11).
(2) The decision rule for the 0.01 significance level is;
If the value of our test statistics is less than the critical values of F at 0.01 level of significance, then we have insufficient evidence to reject our null hypothesis. If the value of our test statistics is more than the critical values of F at 0.01 level of significance, then we have sufficient evidence to reject our null hypothesis.(3) The value of the test statistic is 0.3796.
Step-by-step explanation:
We are given that you are an expert on the fashion industry and wish to gather information to compare the amount earned per month by models featuring Liz Claiborne's attire with those of Calvin Klein.
The following is the amount ($000) earned per month by a sample of 15 Claiborne models;
$3.5, $5.1, $5.2, $3.6, $5.0, $3.4, $5.3, $6.5, $4.8, $6.3, $5.8, $4.5, $6.3, $4.9, $4.2 .
The following is the amount ($000) earned by a sample of 12 Klein models;
$4.1, $2.5, $1.2, $3.5, $5.1, $2.3, $6.1, $1.2, $1.5, $1.3, $1.8, $2.1.
(1) As we know that for the unequal variance test, we use F-test. The degrees of freedom for the F-test is given by;
[tex]\text{F}_(_n__1-1, n_2-1_)[/tex]
Here, [tex]n_1[/tex] = sample of 15 Claiborne models
[tex]n_2[/tex] = sample of 12 Klein models
So, the degrees of freedom = ([tex]n_1-1, n_2-1[/tex]) = (15 - 1, 12 - 1) = (14, 11)
(2) The decision rule for 0.01 significance level is given by;
If the value of our test statistics is less than the critical values of F at 0.01 level of significance, then we have insufficient evidence to reject our null hypothesis. If the value of our test statistics is more than the critical values of F at 0.01 level of significance, then we have sufficient evidence to reject our null hypothesis.(3) The test statistics that will be used here is F-test which is given by;
T.S. = [tex]\frac{s_1^{2} }{s_2^{2} } \times \frac{\sigma_2^{2} }{\sigma_1^{2} }[/tex] ~ [tex]\text{F}_(_n__1-1, n_2-1_)[/tex]
where, [tex]s_1^{2}[/tex] = sample variance of the Claiborne models data = [tex]\frac{\sum (X_i-\bar X)^{2} }{n_1-1}[/tex] = 1.007
[tex]s_2^{2}[/tex] = sample variance of the Klein models data = [tex]\frac{\sum (X_i-\bar X)^{2} }{n_2-1}[/tex] = 2.653
So, the test statistics = [tex]\frac{1.007}{2.653 } \times 1[/tex] ~ [tex]\text{F}_(_1_4,_1_1_)[/tex]
= 0.3796
Hence, the value of the test statistic is 0.3796.
What value of a makes the solution to the equation 5x-10=3x+a equal to 12
Answer:
a=-1.2
Step-by-step explanation:
5x-10=3x+a=12
let's first find x:
5x-10=12
add 10 to both sides:
5x=22
divide both sides by 5:
x=4.4
now that we know what x is, we can plug it back into the equation to find a:
3*4.4+a=12
first, simplify both sides:
13.2+a=12
then, subtract 13.2 from both sides:
and our answer is: a=-1.2
3 Cindy want to make some lemonade for the family picnic. She added 47 cups of water to 32 cups of lemon drink mix. How much lemonade did Cindy make? 4. 0 76 cups 0 7 cups 1 0 84 cups 1 0 74 cups 1 2 3 3 4 Support | Schoology Blog | PRIVACY POLICY | Terms of Use
Answer:
79 cups of lemonade
Step-by-step explanation:
47 cups of water plus 32 cups of lemonade mix added together equals 79 cups of lemonade.
8^2 + b^2 = 10^2
what is b?
HELP HELP FAST
Answer:
2
Step-by-step explanation:
10^2 - 8^2 = B^2
B = 2
Answer:
b=6
Step-by-step explanation:
8 squared equals 64, 10 squared equals 100. 100-64 is 36. square root of 36 equals 6. Thus b=6.
is y=7x-3 proportional
5+5+5+5+5+5+5+5+5+5 answer this please
Answer:
50
Step-by-step explanation:
— 7x — бу = — 15 Determine the intercepts of the line.
Answer:
see below
Step-by-step explanation:
— 7x — бу = — 15
To find the x intercept set y = 0 and solve for x
-7x - 0 = -15
-7x= -15
Divide by -7
-7x/-7 = -15/-7
x = 15/7
The x intercept is (15/7,0)
To find the y intercept set x = 0 and solve for y
o— бу = — 15
— бу= -15
Divide by -6
— бу/-6= -15/-6
у= 5/2
The y intercept is (0,5/2)
Which compound inequality has no solution? x ≤ –2 and 2x ≥ 6 x ≤ –1 and 5x ≤ 5 x ≤ –1 and 3x ≥ –3 x ≤ –2 and 4x ≤ –8 ANSWER ASAP!!!
Timed! Solve |4-7x|-5<8
Answer: x> −9 /7 and x< 17 /7
Step-by-step explanation:
brainliest:)
Answer:
B
Step-by-step explanation:
ABC ~ AYZ , what's the value of x?
Answer:
Step-by-step explanation:
6cm
What is the value of when x = 16 and y = 2?
32
02
2
2
4
Hi
A survey asks 184 people "What beverage do you drink in the morning?", and offers choices:
• Coffee only
• Tea only
• Both tea and coffee
• Neither tea nor coffee
Suppose 52 report tea only, 44 report coffee only, and 68 report both.
what is the question?
Which term must be inserted in the dividend before you begin long division?
(2x^3 + 5x^2 +9) / (x + 3)
Answer:
2x2 −x+3
Step-by-step explanation:
If Jill bought 2 dozen bagels, how many of each type of bagel did she buy?
There are 72 new houses being built in a neighborhood. Last month, 1/3 of them were sold. This month, 5/6 of the remaining houses were sold. How many are left to be sold ?
Answer:
8
Step-by-step explanation:
72x(2/3)=48
48/6=8
Pls help I forgot how this works
Classify the four angles of the quadrilateral
Answer:
<A= obtuse
<B= acute
<C= obtuse
<D= right
Step-by-step explanation:
In triangle PQR if PQ = QR then which one of the following relation is TRUE? *
∡P < ∡R
∡P = ∡ Q
∡ P = ∡ R
∡ P is greater than ∡R
Answer:
Triangle PQR is an isoceles triangle since PQ=QR, where angle P= angle R (property of isoceles triangle)
Suppose you have the following information about the costs of a new video game and new board game, along with the utility generated from each purchase for Libby. The video game costs $25 and would provide Libby with a marginal utility of 50 utils. The board game costs $15 and would provide Libby with a marginal utility of 45 utils.
Answer:
holoiejk
Step-by-step explanation:
Deena drove 585 miles in 9 hours . Kristen drove 605 miles in 11 hours who drove faster?
Answer:
deena
Step-by-step explanation:
585/9=65mph
605/11=55mph
brainliest plz
Answer:
Deena
Step-by-step explanation:
Deena drove 585 miles in 9 hours divide 585 by 9=65
Kristen drove 605 miles in 11 hours divide 605 by 11=55
11, 13, 17, 25, 32, 37,
A) 58. B) 67
C) 47
D) 65
E) 59
Answer:
C 47
omae wa mou
0.7 is 10 times as great as?
Answer: 0.7 is 10 times larger than 0.07
Step-by-step explanation:
Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm^2. Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two significant figures, your answer will fall outside of the grading tolerance and be graded as incorrect.) Write your answer to two significant figures and include the appropriate units
Answer:
The area of the rectangle is 12 cm² (to two significant figures)
Step-by-step explanation:
To determine the area of a rectangle that is 2.1-cm wide by 5.6-cm long,
The area of a rectangle is given by
Area = l × w
where l is the length
and w is the width
From the question,
l = 5.6 cm
and w = 2.1 cm
Hence, Area of the given rectangle will be
Area = 5.6 cm × 2.1 cm
Area = 11.76 cm²
Now, we will convert the answer to two significant figures
Then,
Area = 12 cm²
Hence, the area of the rectangle is 12 cm² (to two significant figures)
The equation of line AB is y = 5x + 1. Write an equation of a line parallel to line AB in slope-intercept form that contains point (4, 5). (5 points)
O y = 5x - 15
O y = 5x + 15
9.(06.04 MC)
answer is y=5x-15 for the parallel line
Answer:
y = 5x - 15
Step-by-step explanation:
Took test.
Ella's hair grew from 10 3/4 inches to 13 1/4 inches over 5 months. At what rate did Ella's hair grow per month?
Answer:
530 inches.........0.009434 in every month
Step-by-step explanation:
13.25-10.75=2.5
13.25/2.5=5.3
5.3*100=530
5/540
negative -4.6 times 5 equals
Answer:
-23
Step-by-step explanation:
What is the value of f(-2) when f(x)=2x2-3x+28
Answer:
[tex]f(x)= 2x^{2} - 3x +28\\f(-2) = 2(-2^{2}) - 3(-2) +28\\f(-2) = 8 +6+28\\f(-2) = 42[/tex]
Find the volume. *
10 in
11 in
