Answer:
wow 1555
Step-by-step explanation:
no no dont touch me there this is y uhbeyufbeb
For questions 8 - 15, use the following set of data to find the equation of the line of
best fit and assess the fit of the equation by plotting and analyzing residuals.
The data below show the mean swimming speed (m/s) of basking sharks of various
lengths (m)
Length (m) Speed (m/s) Predicted speed Residual
2.5
3
3.5
4.5
5
4.8
5.5
5.2
6
5.5
a Calculate the line of best fit Round a and b to the nearest hundredth.
Answer:
Y^= 1.767 + 0.6294X when rounded give s Y^= 1.77 +0.63X
b= 0.6294 rounded to 0.63
a= 1.77
The predicted lines are for each X and Y
3.340,3.96, 4.914, 5.228, and 5.543
Step-by-step explanation:
The data given is
Length (m) Speed (m/s) Predicted Line
2.5 3 3.340
3.5 4.5 3.96
5 4.8 4.914
5.5 5.2 5.228
6 5.5 5.543
The calculations are
Xsquare XY Y X
6.25 7.5 3 2.5
12.25 15.75 4.5 3.5
25 24 4.8 5
30.25 28.6 5.2 5.5
36 33 5.5 6
Total 109.75 108.85 23 22.5
The estimated regression line of Y on X is
Y^ = a +bX
and two normal equations are
∑Y = na + b∑X
∑XY= a∑X + b∑X²
Now X`= ∑X/ n= 22.5/5=4.5
Y`= ∑Y/ n= 23/5= 4.6
b= n∑XY- (∑X)(∑Y) / n∑X²- (∑X²)
Putting the values
b= 5(108.85) - (23)(22.5)/ 5(109.75)- (22.5)²
b= 544.25-517.5/ 548.75-506.25
b= 26.75 /42.5
b= 0.6294
and
a= Y`- bX~= 4.6- 0.6294(4.5)= 4.6-2.823= 1.767
Hence the
desired estimated regression line of Y on X is
Y^= 1.767 + 0.6294X
Y^= 1.77 +0.63X
The estimated regression co efficient b= 0.6294 indicates that the values of Y increase by 0.6294 units for a unit increase in X.
Puppy A weighs 6 kilograms, which is about 30% of its adult weight.
a. Write an equation of this situation using the variable w for the adult weight.
b. What will be the approximate adult weight of the puppy?
Pls solve both a and b as fast as possible thank you :))
Answer:
a.
Required equation is
6 kg is 30% of w0.3w = 6b.
Solve the equation
w = 6/0.3w = 20 kgHELLO PLS HELP I NEED THIS DONE BY TODAYYY
Answer:
2
Step-by-step explanation
Multiply 16 by 1/8 and you get 2
Answer:
128
Step-by-step explanation:
For every mile, there are 8 signs. (Sign for every 8th of a mile). There are 16 mikes so 8x16=128
Which statement about the number 726,483.19 is true?
Answer:
It is a number with 6 whole numbers and 2 decimals, Its a Hundred thousand number
Step-by-step explanation:
if i have a 100.91 as my grade and let's just say i would get a 0/100 what would be my grade?
May someone please help me with this :)
Answer:
163°.
Step-by-step explanation:
Sum of any pentagon is 540°.
So.
x + 68° + 121° + 103° + 85° = 540°.
x + 377° = 540°.
x = 540° - 377°
x = 163°.
Suppose you brought 8 oranges and 1 grapefruit for a total price of $4.60. Later that day, you brought 6 oranges and 3 grapefruits for a total price of $4.80.What's the price of each type of fruit.
Answer:
assuming the prices did not change during the day,
8o+g=460
6o+3g=480
18o=900
o=50
g=60
so, oranges cost $0.50, grapefruit cost $0.60
Step-by-step explanation:
do good !
Answer:
oranges $0.5 grapefruit 0.6
Step-by-step explanation:
o = oranges
g= grapefruit
8o +1 g = 4.60
6o+3g= 4.80
Multiply the first by -3
-24o -3g = -13.80
6o +3g = 4.80
ADD BOTH (3g will be cancelled)
-18o = -9.00
o = 9/18 = 0.5
8(0.5) +1g= 4.60
4.00 +g = 4.60
g = 0.60
Free point.s! Just answer these two questions and write your first/last name down I am creating a project. I am doing. probability one.
Answer:
Rhiannon Taylor :)
Step-by-step explanation:
I do not speak spanish and I love spicy chips!
Suppose a normal distribution has a mean of 48 and a standard deviation of 5. What is the probability that a data value is between 48 and 52? Round your answer to the nearest tenth of a percent. O A. 26.2% . B. 30.5% O c. 31.1% O D. 28.8%
Answer:
31.1 best answer
sorry if it's wrong
28.8% is the probability that a data value is between 48 and 52.
What is probability?Probability is a number that expresses the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
First, we need to standardize the values and use a standard normal distribution table or calculator.
The standardized value of 48 is:
z = (48 - 48) / 5 = 0
The standardized value of 52 is:
z = (52 - 48) / 5 = 0.8
Now we need to find the probability that a data value is between z = 0 and z = 0.8 in a standard normal distribution. We can use a standard normal distribution table or calculator to find this probability.
Using the table or calculator, we can find that the probability of a data value being between z = 0 and z = 0.8 in a standard normal distribution is approximately 0.2881.
Rounding this answer to the nearest tenth of a percent, we get:
P(48 < x < 52) ≈ 28.8%
Therefore, the answer is D, 28.8%.
Learn more about probability here:
https://brainly.com/question/30034780
#SPJ2
Find the value of K, for which 7k - 7-2 = 75
Answer:
7k-7-2=75
7k-9=75
7k=75+9
k=84/7
k=12
Step-by-step explanation:
How many different 12-letter arrangements can be made using the letters in the word CARELESSNESS?
From 12 different letters, 3326400 arrangements can be made using the letters in the word CARELESSNESS.
What is permutation?When the order of the arrangements counts, a permutation is a mathematical approach that establishes the total number of alternative arrangements in a collection. Choosing only a few items from a collection of options in a specific sequence is a common task in arithmetic problems.
Among the 12 letters in CARELESSNESS,
there are 4 S’s, 3 E’s, and 1 each of C, A, R, L, N.
There are 12! = 479,001,600 arrangements (permutations) of the 12 letters,
most of which are identical because of repeated letters.
In order that each permutation be distinct, repeat letters have to be accounted for.
4 S’s be in 4! = 24 ways,
3 E’s, in 3! = 6 ways.
And 1! = 1 way.
Distinct permutations as requested,
thus = 12!/(3!)(4!)(1!)
= 3326400.
Therefore, 3326400 different 12-letter arrangements can be made using the letters in the word CARELESSNESS.
To learn more about the permutation;
https://brainly.com/question/1216161
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Veronica bought a house. Her property taxes are $2080 per year and she also needs to
pay $800 per year for homeowner's insurance. What is the monthly amount she needs
to budget to her monthly mortgage payment?
What is the measure of xº?
A. 26°
B. 58°
C. 64°
D. 116
Answer:
64º
Step-by-step explanation:
180 - 116 = 64
what are the coordinates of point R
Answer:
(0, -3)
Step-by-step explanation:
:)
geometry question will give brainly!!
central angle measure
This recipe makes 20 cupcakes. Deepak only wants to make 15 cupcakes. How much of each ingredient does he need? Recipe: Makes 20 cupcakes 10 ounces butter 12 ounces sugar 8 ounces flour 4 eggs
Answer:
9.6 ounces of butter, 8 ounces of sugar, 12 ounces of flour, 4 eggs
Explanation: 20 / 16 = 4/5. 16 is four-fifths of 20. So multiply 4/5 with everything.
12 * 4/5 = 9.6 ounces
10 * 4/5 = 8 ounces
15 * 4/5 = 12 ounces
5 * 4/5 = 4 eggs
WILL MARK BRAINLIEST NEED HELP PROBABILITY
Answer:
1/10
Step-by-step explanation:
P(blue picked) = 8/20 = 2/5
P(green picked with replacement) = 5/20 = 1/4
P(blue, then green) = (2/5)(1/4) = 1/10
The dimensions of a rectangular prism are measured in feet, what units will the surface area of the prism be measured in?
feet
yards
cubic feet
square feet
Answer:
Square Feet, area is always measured in square units
PLEASE HELP WILL GIVE BRAINLIEST!!
Answer:
b. side-angle-side
Step-by-step explanation:
2
6
+
2
Area
HELP PLEASE
Answer:
X= 40
Step-by-step explanation:
if you compare the shapes, the X square is half of 6. so i added 6 and 3, then 2 and 3, then multiplied it, and the answer is 40.
PLSSSSS HELPPP PLSSSSS ITS MATHHH PLSSSSS 20 POINTSSS
Find the volume of the shape
A. 170.1 m^3
B. 340.2 m^3
C. 1786.05 m^3
D. 3572.1 m^3
Answer:
the answer is d, sorry for the late answer, I just saw this
Step-by-step explanation:
ok so finding the volume of a prism, the formula for that is volume= base area * height or v=b*h
when I saw this problem I realized that I had to find the base area, in this case it's a hexagon. The formula for a regular polygon is A= 1/2 p*a p is perimeter and a is the apothem.
- I suggest you write those formulas down if you have trouble memorizing them.
So now time for the math!!!
so the perimeter of the hexagon is simply
[tex]7 \times 6 = 42 [/tex]
and the apothem is the perpendicular line so now simply plug those in to the polygon formula and you get...
[tex]42 \times 8.1 = 340.2[/tex]
[tex]340.2 \div 2 = 170.1[/tex]
now that you have the base area, simply plug in the height and area into the volume of a prism formula, and you get
[tex]170.1 \times 21 = 3572.1m ^{3} [/tex]
- I really hope this helps, I'm not the best at math and when I don't understand something it really stresses me out so pls ask questions if you have them :)
during the sale, the price of the book was marked down 20 percent.
If the sale price of the book was $480, how much did the book originally cost?
Answer:
$576
Step-by-step explanation:
Because the sales price was $480, and the book was marked down 20%, we have to add 20%. 480+20% is now $576.
Thus, the answer is $576.
A triangle has side lengths 11, 12, and 15. Is it acute, obtuse, or right?
O Acute
O Obtuse
O Right
Answer:
right triangle
Step-by-step explanation:
because 15 would be the base so 11 and 12 would be the sides and fot the triangle to be acute or obtuse the total of the sides (11+12) has to be lass than the base (15), but it is more 23 so it has to be a right triangle.
Amanda decreased the amount of sugar she eats every day from 150g to 25g. By what percent did Amanda decrease the amount of sugar she eats?
Answer:
83.33%
Step-by-step explanation:
Amount she eats everyday = 150g
Amount she eats now = 25g
By what percent did Amanda decrease the amount of sugar she eats?
Percentage decrease in the amount of sugar she eats = (150 g - 25g) / 150g × 100
= 125g / 150g × 100
= 0.8333333333333 × 100
= 83.33%
Percentage decrease in the amount of sugar she eats = 83.33%
How much is a $450 snowboard with 7.25% sales tax?
Answer:
$482.625 ≈ $482.63
Step-by-step explanation:
[tex]\frac{y}{450}: \frac{7.25}{100}[/tex]
y · 100 = 450 · 7.25
100y = 3262.5
100y ÷ 100 = 3262.5 ÷ 100
y = 32.625
$450 + $32.625
$482.625
Factor 1/7 out of 1/7x+11/7
Answer:
x+10/7.......................
What’s the solution for x+3/4> 1 1/2?
Answer:
x > 19/4
interval notation is (19/4, infinity)
Step-by-step explanation:
hope this helps
Which expression is equivalent to the expression below?
8(2r)+9r
8(2r)+9r
If sin*theta=1/3 and tan*theta<0, what is that value of cos*theta?
a. 2 sqrt(2)/3
b. -2sqrt(2)/3
c. 2sqrt(2)
d.-2sqrt(2)
Answer:
https://brainly.com/question/2507596
Step-by-step explanation:
hope you found it
GIVING BRAINLIEST URGENT!!
can someone solve this, thank you!!
7. 16.48
8. 9
I hope this helped!
Step-by-step explanation:
pls mark brainliest
Answer:
7. 16.485 feet
8.answer is 9.42 feet but when u round off it is 9 feet.
Step-by-step explanation:
