What would be the value of Pearson’s r (simply the square root of r2)? R² = 0.785

Answers

Answer 1

Answer:
Every equation that has anything squared in it is
going to have two solutions.

The solutions of R² = 0.785

are R = 0.886... (rounded)
and R = -0.886... (rounded) .

When you multiply EITHER of those numbers by itself, you get
0.785 , so both of them make the equation a true statement.

Answer 2

Answer: R^2 = 0.785

Take the square root of both sides

√R^2 = √0.785
R= 0.886

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The volume of a cube depends on the length of its sides. This can be written in function nation as v(s). What is the best interpretation of v(3)=27

How many solutions?
1
2
3
0

Answers

Answer:

The number of solutions of the system is 0

Step-by-step explanation:

we know that

When solving a system of equations by graphing, the solution of the system is equal to the intersection point both graphs.

In this problem the graphs do not intersect

therefore

The number of solutions of the system is 0

On a vacation to Puerto Rico Rose jumped off a cliff into a river in Elion forest preserve her height as a function of time to be modeled by the function HFT equal 16 T squared +16 T +480 where T is the time after jumping in seconds and H is the height in feet how many seconds it take Rose to hit the water round your answer to the nearest hundredth

Answers

To solve for t, you will use the equation given: -16t^2 + 16t + 480 = 0. First, simplify the equation by dividing everything by 16: -t^2 + t + 30 = 0. Then complete reverse FOIL: (-t + 6)(t + 5) = 0. Next, set each of these equations to 0 separately, and solve for t. You will get t = 6, and t = -5. Since time can't be negative (Rose can't have hit the water after a negative number of seconds), the answer is 6.

Simplify 5t + (t - 3) - [(7t + 5) - (8 - 3t)].

Answers

This process is:

Distribute of the Negative Sign:
5t+t−3+−1(7t+5−(8−3t))
5t+t+−3+−1(7t)+(−1)(5)+(−1)(−8)+−1(3t)
5t+t+−3+−7t+−5+8+−3t
Now simple, Just Combine Like Terms:
5t+t+−3+−7t+−5+8+−3t
(5t+t+−7t+−3t)+(−3+−5+8)
−4t

-4t would be the answer.

~Evie

I presume that this is talking about simplification with the rule of PEMDAS. First, look at the parenthesis and brackets. Let's do the [(7t + 5) - (8 - 3t)] part first. The parenthesis can go away on the inside if you distribute the negative in (8 - 3t), which flips the signs of those. You should then have [7t + 5 - 8 + 3t], then work it out to form just (10t - 3). The negative will also carry for the brackets that were there before, so - (10t - 3) turns into -10t + 3. Now, you just have 5t + t - 3 - 10t + 3. Work that out to get your final answer of -4t.

-4t is the answer.

Irene received $425 in annual interest on a principal investment sum of $5,000. What was the simple interest rate for his return???

Answers

Irene received 425 dollars as interest rate for his principal investment which is 5000 dollars.
Let's solve for the interest rate:
=> 425 / 5000 dollars = 0.085
=> 0.085 * 100% = 8.5%
Thus the simple interest or annual interest to her investment is 8.5%

Geometric mean of 10 and 18 in simplest radical form