PLEASE HELP! I WILL GIVE BRAINLY!! (if u troll ill report!)
A sports medicine major wanted to conduct an experiment to determine if there is a correlation between the members of the soccer team's leg strength and the time it takes for them to sprint 40 yards. He sets up the following test and records the data:
Answers
Answer:
Using linear interpolation on the interval [15,23] that would be
9.5 + (22-15)/(23-15) * (11.9-9.5) = 11.6
That is, since 22 is 7/8 of the way from 15 to 23, he should produce a value 7/8 of the way from 9.5 to 11.9
The correct answer is 11.9
I took the test, this is my third time answering this question.
I explained everything but all got erased, anyways the answer is 11.9
Related Questions
Determine the constant of proportionality in the situation below.
Every bag of peanuts costs $3.55
pls answer this serously thx.
Answers
Simplify |-33|
A.
0
B.
-33
C.
1
D.
33
Answers
Answer:
D. 33 will be your answer
Step-by-step explanation:
hope it helps...
Answer:
D. 33
Step-by-step explanation:
The two lines closing -33 in are the absolute value lines. Absolute value means how far is that number from 0. Since distance HAS to be positive, the answer is always the number inside the two lines, but positive. No matter if it starts off as negative or positive.
A store pays $275 for a table and marks the price up by 50%. What is the amount of the mark-up ?
Answers
Answer:
$387.50
Step-by-step explanation:
You can get the answer 2 different ways. First you could take $275/2 = $137.50
Or
$275*0.50 = 137.50
add $275+137.50 =$387.50
Find the missing length. Round to the nearest tenth, if necessary.
Answers
can anyone help me out with this?
Answers
Answer:
Q1-4 = Solutions are found in attachment; Q5 = 24; Q6 = 8; Q7 = 7; Q8 = 3; Q9 = 45; Q10 = 24; Q11 = 15; Q12 = 18; Q13 = 3, 6, 9, 12, 15; Q14 = 7, 14, 21, 28, 35; Q15 = 8, 16, 24, 32, 40
Step-by-step explanation:
Solution for 1 to 4 are shown in the graph in the attachment.
Bold = Answer
Equivalent fractions
5.
6/8 = x/32
32/8 = 4
x = 6 * 4 = 24
6.
4/6 = x/12
12/6 = 2
x = 4 * 2 = 8
7.
1/8 = x/56
56/8 = 7
x = 1 * 7 = 7
8.
9/12 = x/4
12/4 = 3
x = 9/3 = 3
9.
5/9 = 25/x
25 / 5 = 5
x = 9 * 5 = 45
10.
5/6 = 20/x
20 / 5 = 4
x = 6 * 4 = 24
11.
36/45 = 12/x
36/12 = 3
x = 45 / 3 = 15
12.
20/36 = 10/x
20/10 = 2
x = 36/2 = 18
Multiples
13.
3 * 1 = 3
3 * 2 = 6
3 * 3 = 9
3 * 4 = 12
3 * 5 = 15
3, 6, 9, 12, 15
14.
7 * 1 = 7
7 * 2 = 14
7 * 3 = 21
7 * 4 = 28
7 * 5 = 35
7, 14, 21, 28, 35
15.
8 * 1 = 8
8 * 2 = 16
8 * 3 = 24
8 * 4 = 32
8 * 5 = 40
8, 16, 24, 32, 40
Solve the system of linear equations by elimination. Check your solutions.
-5x + 3y = -6
9x - 4y = 1
Answers
We can divide both sides of the equation by 43 to solve for x:
90x / 43 - 47y / 43 = -49 / 43
x = -49/43
We can substitute this value for x back into either of the original equations to find y. Let's substitute it into the first equation:
-5x + 3y = -6
(-5 * -49/43) + 3y = -6
y = (-6 + 5 * 49/43) / 3
y = 17/43
The solution to the system of equations is (x, y) = (-49/43, 17/43).
To check our solution, we can substitute the values we found for x and y back into the original equations and see if they hold true.
In the first equation, -5x + 3y = -6, substituting the values we found for x and y gives us:
(-5 * -49/43) + (3 * 17/43) = -6
This simplifies to -6 = -6, which is true, so the solution holds for this equation.
In the second equation, 9x - 4y = 1, substituting the values we found for x and y gives us:
(9 * -49/43) - (4 * 17/43) = 1
This simplifies to -1 = -1, which is true, so the solution holds for this equation as well.
Therefore, the solution (x, y) = (-49/43, 17/43) is correct.
-45x+3*9y=-6*9
Equation1: -45x+27y=-54
Equation2: -45x-(4*(-5))y=1*(-5)
-45x+20y=-5
Equation1-equation2= 27y-20y=-54-(-5)
7y=-49
Y=-7
9x-4*(-7)=1
9x=1-28
X=-3
(X, y)=(-3, -7)
Please help me I will give brainliest
First dropdown positive , negative
Second dropdown real , non-real
Third dropdown in the image
Pick THREE answers
ONE FROM EACH DROP DOWN
Answers
Second drop down is NON-REAL
Third dropdown is the second to last one at the bottom (2 plus or minus 4i)
Hope this helps!
NON REAL
2 plus or minus 4
Plz help will be marked BRAINLIEST
And thanks !
Answers
2. X=6
3. X=-8
4. X= 3 (I round it to the nearest number of 2.6)
28/4= 7
x=7
2. 4(x+1)= -28
4x+4=-28
-28-4= -32
-32/4= -8
x=-8
3. x-7= -1
x= 6
in these types of question all you have to is subtract one from the other number.
4. -3x + 7= -1
-1-7=-8
-8/-3
2.6 repeating (2.666666666)
The box plot below represents some data set. What is the interquartile range (IQR) of the data?
Answers
Answer:
16
Step-by-step explanation:
36-20=16
Your welcome
Which formulas can you use to calculate the volume of a rectangular prism? Check all that apply.
V = one-half b h
V = 2l + 2w
V = Bh
V = lw
V = lwh
V = s2
Answers
Which data set could represent the scores shown in the histogram?
Answers
Answer:
Step-by-step explanation:
B, because judging the graph it looks like the numbers are the closest to the data shown.
What is
(n+8) + (n−12)
Answers
Answer:
2n - 4.
Step-by-step explanation:
(n+8) + (n−12)
= n + 8 + n - 12
= n + n + 8 - 12
= 2n - 4.
Answer:
2n-4
Step-by-step explanation:
add like terms. n+n=2n 8+-12=-4
2n-4
pleassse Help thanksss
Answers
Answer:
365 dollars
Step-by-step explanation:
PLEASE ANSWER ASAP BRAINLIEST AND 100 POINTS
Answers
Answer:
x = 2
Step-by-step explanation:
x + y = 7 - 2x + y = 5
x = 2
hope im right :)
For part B i dont know
Answer: x=−2 and y=9.
Step-by-step explanation: x+y=7
x+y+−y=7+−y
x=−y+7
2x+y=5
2(−y+7)+y=5
−y+14+-14=5+-14
−y/-1=−9/-1
y=9
x=−y+7
x=−9+7
x=−2
x=−2 and y=9
Only answer if you know the correct answer! Thanks! :)
Answers
Answer:
(21, 7)
because the x axis is the number of minutes and the y axis is the x axis divided by 3
Two of the vertices of a rectangle are plotted on the coordinate grid below.
Answers
Option A is the correct answer.
Elsa is painting his bedroom walls. Each wall requires \large 1\frac{1}{3}gallons of paint. He has \large 2\frac{1}{4} walls left to paint. How many gallons of paint will he need?
Answers
A pentagonal pyramid holds 30 cubic cm of sand. The area of the pentagon equals 9 square cm. Find the pyramid's height.
Answers
30cm divided by 9 cm to get ur answer
In this case it is recurring
Answer:
it should be 3.3 if rounded
Step-by-step explanation:
A cylinder with volume of 143^3 cm has 3 spheres inside. Each sphere has a radius of 2cm. What is the volume in the cylinder not taken up with spheres (blank space)?
Please provide the equation and steps you used!
Answers
Answer:Equation: V = πr^2h
Steps:
1. Calculate the volume of each sphere: V = 4/3πr^3 = 4/3π(2cm)^3 = 33.51 cm^3
2. Calculate the total volume of the 3 spheres: 3 x 33.51 cm^3 = 100.53 cm^3
3. Calculate the volume of the cylinder not taken up with spheres: 143^3 cm^3 - 100.53 cm^3 = 42.47 cm^3
Step-by-step explanation:
pls mark brainliest if its correct !!
how can you find the vertex of a parabola if you know it's focus and directrix? in my equation, the focus is (6,4) and the directrix is y=-2
Answers
Answer:
The vertex would be (6,1)
Step-by-step explanation:
The vertex is the midway between the focus and the directrix. The X of the vertex would be the same but to get the Y of the vertex you would need to take the average of the Y values. (6, 4 + (-2)/2) (6,1)
A color printer prints 23 pages in 9 minutes. How many pages does it print per minute? Round to the nearest hundredth. No links
Answers
Answer:
2.56
Step-by-step explanation:
To find out how many pages the printer prints per minute, you need to divide the amount of pages it printed with how long it printed.
So 23÷9
Which equals 2.55555555-
Round 2.5555555 to the nearest hundredth you get 2.56.
23 divided by 9 is 2.55555
2.55555 rounded to the nearest hundredth is 2.56
Please help me fast!
Illl give brainly
Answers
Answer:
2,050 = 2.05L and 2,050mL
7,002 = 7.002L and 7,001mL
10,050 = 10.05L and 10,050mL
Step-by-step explanation:
Answer:
2,050 = 2.05L and 2,050mL
7,002 = 7.002L and 7,001mL
10,050 = 10.05L and 10,050mL
Step-by-step explanation:
A factory makes aquariums. Each aquarium is in the shape of a triangular prism, as shown below. If the factory made aquariums that require a total of
12,600 ft 3 of water, how many aquariums did the factory make?
Answers
Answer: 420 aquariums
Step-by-step explanation:
The volume of the triangular prism is 30 because 1/2x5x4x3=30; if we divide 12,600 by 30 we get 420, which is 420 aquariums.
What is the mean of the data? Hours of TV Watched on Saturdays X Х XX 4 5 6 7 Hours 5.5 7 4 9
Answers
Answer: 5.9375
Step-by-step explanation:
The average (mean) is equal to the sum of all the data values divided by the count of values in the data set.
Average = Sum / Count
= 47.5 / 8
= 5.9375
I’m to lazy to do my own work so can anyone help? Please explain
Answers
Answer: F
Example
If you do the math correctly the mean is 1955. The median is 78. The range is 157 and the mode it what shows the most so that isn't correct in this situation. Since the question asks how much Adriana scored then you would use the mean to figure out the answer
Lol me too but the mean is 78 I don't know how it would help but there is a useful-ish piece of info
The base of a rectangular pyramid has dimensions 3 feet by 9 feet. The height of the pyramid is 11 feet.
What is the volume of the rectangular pyramid in cubic feet? Answer below, no units.
Answers
Answer:
99
Step-by-step explanation:
1. rectangular pyramid formula:
2. V=lwh/3
3. 99 = (3)(9)(11)/3
Keith has $20 in a savings account that earns 10% interest, compounded annually.
To the nearest cent, how much interest will he earn in 3 years?
Use the formula B = p(1 + r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Answers
Answer:
A = P(1 + r)t
Step-by-step explanation:
account balance, to the nearest cent, after: Year 1? Year 2? Year 3? Year 4? ... -To calculate compound interest we use the formula below where A = total balance after t years, P = principal amount (amount borrowed or invested), r = interest ... annually. a) How much money will Jack have after 1 year? b) How much money ...
Answer:
$6.62 interest
Step-by-step explanation:
B = p(1 + r)^t
= 20(1 + 0.10)^3
= 20 * (1.10)^3
= $26.62
Students are making lemonade from a powdered lemon drink mix. Adam mixes 3 cups of water and 4 cups of powdered lemon mix. Grace mixes 2 cups of water and 3 cups of powdered lemon mix. Use Adam and Grace’s percent of powdered lemon mix to determine whose mix will be more lemony.
Answers
Answer:
Ariana's percentage of the powdered lemon mix is 85%.
Andres's percentage of the powdered lemon mix is 48%.
Step-by-step explanation:
The answer is 85% and 48%
Select all ratios equivalent to 20:4 A. 8:1 B. 10:2 C. 15:3
Answers
Answer:
b 10:2 ,, c 15:3
Step-by-step explanation:
20:4 by dividing 4 from both sides you get the ratio
5 :1
so simplify the other ratios and find one that equals this one
A is already in simplest form 8:1
so it's refused
B 10:2 by dividing 2 from both sides you get the ratio 5 :1
C 15:3 by dividing 3 from both sides you get the ratio 5 :1
so both B and C are correct answers
Hope this helped! :)
Can somebody please help me. All you have to do is write an equation for a problem and answer questions about it! (I will give brainliest to whoever can answer it!)