Answer:
y = 147.56 - 10.78x
Step-by-step explanation:
Given :
x = 10.2 ; y = 37.6 ; Sx = 2.8 ; Sy = 30.8 ; r = - 0.98
The regression equation :
y = mx + c
Where ;
m = slope ; c = intercept
Slope = r * (Sy/Sx)
Slope = - 0.98 * (30.8 / 2.8)
Slope = - 0.98 * 11 = - 10.78
To obtain c :
y = mx + c
y - mx = c
37.6 - (-10.78)(10.2) = c
37.6 + 109.956 = c
147.556 = c
Hence, equation becomes :
y = 147.556 - 10.78x
y = 147.56 - 10.78x
Answer:
y = 147.56 + -10.78x
Step-by-step explanation:
blopie help me :(((((
Step-by-step explanation:
first you have to see the triangle BCD
then hypotheses and perpendicular are given so you have to find base
after finding base. In rectangle ABCD DC is length and BC is breadth so now you can find area by using the formula A = l×b
Write an expression to show the total amount in Trey's savings account after m months
Answer:
75 +25m
Step-by-step explanation:
You should add the starting amount which is 75 to the 25m and plus I got it right . lol
At what coordinate would you place point B so that it is 1/4 of the distance from A to C?
Answer:
-3
Step-by-step explanation:
-3 = 1/4 distance to c
-1 = 1/2 distance to c
1 = 3/4 distance to c
what number is 0.1 more then 149.99
Answer:
150.09
Step-by-step explanation:
Adding one tenth to 149.9 will equal 150. The remaining 0.09 will be added to 150 and the final answer is 150.09
I agree, 150.09. Hope it helps!!!!!
Find value of f(4) its on a graph so
I will give brainiest to whoever answers correctly !!
Please do not steal my points I'm tired of it put a legit answer or leave!! I will give brainiest to whoever answers correctly!!
How can angle relationship to solve problems
Answer:
angle can't solve your problem u hve to understand each other
After Teotihuacan and the Zapotec collapsed, who rose to power?
A. Toltec
B. Maya
C. Aztec
D. Chavin
Answer:
A. Toltec
Step-by-step explanation:
Historical records show that after the collapse of the Teotihuacan and the Zapotec empire, the Toltec empire rose to power and it became the dominant power in Mexico.
the first 500naira of a man's income is tax free. if he pays tax on the rest at the rate of 10kobo on every naira,how much tax will he pay if he earns 2400naira as income?
Answer:
Tax on 2400 naira = 190 kobo
Step-by-step explanation:
Given that:
The first 500 naira is tax free.
Amount earned = 2400 naira
Amount to be taxed = 2400 - 500 = 1900 naira
Payable tax = 10 kobo on every naira
1 naira = 10 kobo
1900 naira = [tex]\frac{1900*10}{100}[/tex]
1900 naira = 190 kobo
Hence,
Tax on 2400 naira = 190 kobo
Which of the m-values satisfy the following inequality?
5m +1<4
Choose all answers that apply:
A.M=0
B.M=1
C.M=2
Answer:
a m=0
Step-by-step explanation:
5(0)+1 = 0+1 = 1
1<4
hope this helps
help me please!
I need help
Answer:
-7
Step-by-step explanation:
-1 x -1 = 1
4 x -2 = -8
1 + (-8) = -7
Company X has $128,000 in a saving account that pays 6% interest per year. How much interest will earn at the end of 1/2 year?
Answer:
3% interest
$171392
Step-by-step explanation:
128000 x 0.03 = 171392
4992 + 128000 = 171392
Hope this helped!
3838383837373838382828283837373838382929293837474737373838382882828282822828822828282828823828282999 + 19192393839383929393939339393939 = (bonus points awarded if correct)
3.8383838e+99 THATS EZ MAN!
WILL MARK BRAINLIEST FOR BEST ANSWER! John has a loyalty card good for a 8% discount at his local grocery store. What would his total in dollars and cents be, after the discount and before tax, if the total cost of all the items he wants to buy is $7? Round to the nearest cent.
Answer:
$6.44
Step-by-step explanation:
100% - 8% = 92%
92% = 0.92
7 x 0.92 - $6.44
What is the area of the shaded region? Use 3.14 for and round your answer to the nearest
tenth.
50.2 cm2
12.6 cm2
6 cm
78.5 cm
10 cm
201.0 cm2
Apples are on sale at four different grocery stores. Which store offers the
lowest unit rate for apples, in dollars per pound?
$4.50
.McCoyS Dounds
$
• Greenland :
pound
$3.00
2 pounds
Eat Smart
• Mother Nature: S0.95/pound
OA. McCoy's
OB. Eat Smart
OC. Mother Nature
OD. Greenland
Full question attached
Answer:
Greenland offers the lowest unit rate, dollars per pound
Step-by-step explanation:
For McCoy, $4.5 = 5 pounds
Therefore $1 = 5pounds/4.5= 1.11 pounds
1 pound= 1/1.11= $0.9009
For Eat smart
$3=2 pounds
Therefore $1=2pounds/3 = 0.667 pounds
1 pound = 1/0.667= $1.499
For Greenland
$1/5= 1/4 pounds
$0.2=0.25 pounds
$1= 1.25 pounds
Therefore 1 pound= 1/1.25= $0.8
For Mother Nature
$0.95= 1 pound
Therefore Greenland offers the lowest unit rate at $0.8 per pound
John can run 3 1/2 miles in 3/4 hours. What is his average speed in miles per hour?
Marissa used the set of ordered pairs below to graph a relation.
{(3, 4), (2, 3), (2,0), (4, 2), (3, 6)}
What is the domain of the relations?
Question 6 options:
{0, 2, 3, 4, 6}
{2, 3, 4}
{0, 2, 3, 4}
{0, 3, 6}
0, 2, 3, 4, 6
my answer has to be 20 questions long
what's popping?
Cat behavior: A report stated that the average number of times a cat returns to it's good bowl during the day is 37. Assuming the variable is normally distributed with a standard deviation of 3, what is the probability that a cat would return to it's dish between 34 and 39 times a day. Use the graphing calculator. Round the answer to four decimal places.
P (34<X<39) =?
Answer:
P (34<X<39) = 0.5899
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
[tex]\mu = 37, \sigma = 3[/tex]
What is the probability that a cat would return to it's dish between 34 and 39 times a day.
This is the pvalue of Z when X = 39 subtracted by the pvalue of Z when X = 34. So
X = 39
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{39 - 37}{3}[/tex]
[tex]Z = 0.67[/tex]
[tex]Z = 0.67[/tex] has a pvalue of 0.7486
X = 34
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{34 - 37}{3}[/tex]
[tex]Z = -1[/tex]
[tex]Z = -1[/tex] has a pvalue of 0.1587
0.7486 - 0.1587 = 0.5899
So
P (34<X<39) = 0.5899
Divide the following problem:
4/5 ÷ 37
Please give me a answer that helps.
Answer:
4/185 or 0.0216...
Step-by-step explanation:
What is 2.97239915 rounded to the nearest ten?
Answer:
3.0000
Step-by-step explanation:
Answer:
i'm assuming you mean tenth so 3
Step-by-step explanation:
you start by looking at just 2.97, the seven will round the 9 up to a ten so you will add one to the 2 and end up with 3 as your answer
I75,986
1a. Write the number.
seventy-five thousand ni
1b. Write in word form.
1c. Write in expanded form.
1d. Write the value of the first underlined number.
1e. Write the value of the second underlined number
1f. x10
1g. x10
1h. x10
Step-by-step explanation:
1a. 75,986
1b. Seventy five thousand nine hundred eighty six.
1c. 75,986=this one
[tex]7 \times10000 + 5 \times 1000 + 9 \times 100 + 8 \times 10 + 6 \times 1[/tex]
1d. 70,000
1e 80
I did not understand the rest. Hope it's useful.....
Answer:
heres that plot you needed for that one glasses of water thing
Arrón had $60 and spent $36 on a new video game. Brynn had $77 and bought a chemistry set. Afterward, Arrón and Brynn had the same amount of money left over. Which equation can be used to find b, the cost of Brynn's chemistry set?
Answer:
24 = 77 - c
Step-by-step explanation:
Since both started off with an initial amount of money and then made a purchase to end up with the same amount of money this can be represented as the following where x is the amount of money left over and c is the cost of the chemistry set.
60 - 36 = x
77 - c = x
Since both are equal to x we can simply make both equations equal to one another.
60 - 36 = 77 - c ... simplify it by subtracting 60 - 36
24 = 77 - c
We can now solve this equation
24 = 77 - c ... subtract 77 from both sides
-53 = -c ... the negatives cancel out
53 = c
Estimate each product 5.8 x 4 =
7. Which equation best represents the relationship
between x and y in the graph?
1
Answer:
A. y = 4x + 2
B. y =1/4x + 2
c. y = 2x + 4
D. y =3x + 2
Please help I give brainlests
Answer:
B. y=1/4x+2
Step-by-step explanation:
Equation of a Line
We are given a graph and we must select which of the proposed equations corresponds with the graph.
Let's identify two clear points in the graph. They are (0,2) and (4,3)
Substituting x=0 in the correct equation should give y=2. All the equations but C. give y=2 when x=0
Now when x=4, y should be 3.
Substituting in the each equation:
y=4x+2 = 4*4+2=18
y=1/4(4)+2=3
y=3x+2=3*4+2=14
The only equation that passes through both points is:
B. y=1/4x+2
Answer:
The equation best represents the relationship between x and y in the graph is:
y =1/4x + 2
Hence, option B is correct.
Step-by-step explanation:
The slope-intercept form of the line equation
[tex]y = mx+b[/tex]
where
m is the slopeb is the y-intercept
Taking two points from the given graph
(0, 2)(4, 3)Determining the slope between (0, 2) and (4, 3)
(x₁, y₁) = (0, 2) (x₂, y₂) = (4, 3)Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [3 - 2] / [4 - 0]
= 1 / 4
Thus, the slope of the line = m = 1/4
We know that the value of the y-intercept can be determined by setting x = 0, and determining the corresponding value of y.
From the graph, it is clear
at x = 0, y = 2
Thus, the y-intercept b = 2
now substituting m = 1/4 and b = 2
y = mx+b
y =1/4x + 2
Therefore, the equation best represents the relationship between x and y in the graph is:
y =1/4x + 2
Hence, option B is correct.
A lighthouse is located on an island 200 feet from the shore of the mainland as
shown. If x=0.29 rad, what is d?
Answer: Approximately d = 208.72
============================================================
Work Shown:
Make sure your calculator is in radian mode
A quick way to check is to compute cos(pi) and you should get -1
cos(angle) = adjacent/hypotenuse
cos(x) = 200/d
cos(0.29) = 200/d
d*cos(0.29) = 200
d = 200/cos(0.29)
d = 208.715135166392 which is approximate
d = 208.72
I rounded to two decimal places since x is rounded in that manner as well. Round however else you need if your teacher instructs.
Cheldelin Middle School has 12 doors to enter or leave the building. In how many ways is it possible to enter the building by one door and leave the building by a different door?
Answer:
24 ways
Explanation:
What is the y and x intercepts .
Answer:
y-intercept: (0, -5)
x-intercepts: (-5, 0) , (1, 0)
At the deli counter Sandy bought 1 3/4 pounds of cheese for 4$ per pound and 2 1/4 pounds of turkey for 6$ per pound. How much did Sandy spend at the deli counter?
Answer:
10 dollars
Step-by-step explanation:
4 + 6 = 10 which mean 10 dollars spent
Write the equation below in standard form.
[tex] \frac{8}{3}y = \frac{5}{6}x - 2 [/tex]
