0
Add your answer:
Earn +20 pts
Pqr when p equals 2 q equals 4 andd r equals 5?
PQR P=2 Q=4 R=5 2 x 4 x 5 = 40
What is the pi if the radius is 5?
You cannot calculate pi with a radius, but pi as a constant is 3.14159265358979323846, and continues on as an irrational number. If you are trying to calculate the area of a circle, the formula is pi X R squared. If R = 5, the the are is 25 X pi.<br><p></p><p> </p>
A student takes a 10 question multiple choice exam and guesses on each question Each question has five choices What is the probability of getting at least 6 correct out of the ten questions?
By guessing, the probability of getting at least 6 correct is 62201/9765625 which is approx 0.0064 or 0.64 % Using the binomial theorem of: (p + q)^n = Σ nCr p^r q^(n-r) with r = 0, 1, ..., n Each term gives the probability of r successes P(r) out of n trials: p is the probability of success and q = 1 - p is the probability of failure for each trial; for this question: p = 1/5 q = 4/5 n = 10 and to get the probability of at least 6, P(≥ 6) is the sum P(6) + P(7) + P(8) + P(9) + P(10) which is: 10C6 p^6 q^4 + 10C7 p^7 q^3 + 10C8 p^8 q^2 + 10C9 p^9 q^1 + 10C10 p^10 q^0 = 210 x (1/5)^6 x (4/5)^4 + 120 x (1/5)^7 x (4/5)^3 + 45 x (1/5)^8 x (4/5)^2 + 10 x (1/5)^9 x (4/5)^1 + 1 x (1/5)^10 x (4/5)^0 = (210 x 1^5 x 4^4 + 120 x 1^7 x 4^3 + 45 x 1^8 x 4^2 + 10 x 1^9 x 4 + 1 x 1^10) x (1/5)^10 = 62201/9765625 ≈ 0.0064 = 0.64 %
P varies jointly as q r and s One set of values is p equals 70 q equals 7 r equals 5 and s equals 4 Find p when q equals 2 r equals 15 and s equals 7?
If P varies jointly as q, r and s - assume this is in direct proportion, then P ∝ qrs so P = kqrs where k is a constant.70 = k x 7 x 5 x 4 = 140k : k = 140/70 = 0.5When q = 2, r = 15 and s = 7 then,P = 0.5 x 2 x 15 x 7 = 105
What is the algebraic expression of 5 times the sum of p and r?
" 5(p+r) " is.
Pqr when p equals 2 q equals 4 andd r equals 5?
PQR P=2 Q=4 R=5 2 x 4 x 5 = 40
What is the algebraic expression for 5 times the sum of p and r?
the sum of p and r is p + r5 times this sum is 5 × (p + r) = 5(p + r)Multiplication is not written as it looks like an 'x' - it is implied by two things next to each other.The brackets are needed as the addition needs to be done before the multiplication.
What is the pi if the radius is 5?
You cannot calculate pi with a radius, but pi as a constant is 3.14159265358979323846, and continues on as an irrational number. If you are trying to calculate the area of a circle, the formula is pi X R squared. If R = 5, the the are is 25 X pi.<br><p></p><p> </p>
Formulas on Percentage Base and Rate?
P=B×RB=P÷RR=P÷B
A student takes a 10 question multiple choice exam and guesses on each question Each question has five choices What is the probability of getting at least 6 correct out of the ten questions?
By guessing, the probability of getting at least 6 correct is 62201/9765625 which is approx 0.0064 or 0.64 % Using the binomial theorem of: (p + q)^n = Σ nCr p^r q^(n-r) with r = 0, 1, ..., n Each term gives the probability of r successes P(r) out of n trials: p is the probability of success and q = 1 - p is the probability of failure for each trial; for this question: p = 1/5 q = 4/5 n = 10 and to get the probability of at least 6, P(≥ 6) is the sum P(6) + P(7) + P(8) + P(9) + P(10) which is: 10C6 p^6 q^4 + 10C7 p^7 q^3 + 10C8 p^8 q^2 + 10C9 p^9 q^1 + 10C10 p^10 q^0 = 210 x (1/5)^6 x (4/5)^4 + 120 x (1/5)^7 x (4/5)^3 + 45 x (1/5)^8 x (4/5)^2 + 10 x (1/5)^9 x (4/5)^1 + 1 x (1/5)^10 x (4/5)^0 = (210 x 1^5 x 4^4 + 120 x 1^7 x 4^3 + 45 x 1^8 x 4^2 + 10 x 1^9 x 4 + 1 x 1^10) x (1/5)^10 = 62201/9765625 ≈ 0.0064 = 0.64 %
P varies jointly as q r and s One set of values is p equals 70 q equals 7 r equals 5 and s equals 4 Find p when q equals 2 r equals 15 and s equals 7?
If P varies jointly as q, r and s - assume this is in direct proportion, then P ∝ qrs so P = kqrs where k is a constant.70 = k x 7 x 5 x 4 = 140k : k = 140/70 = 0.5When q = 2, r = 15 and s = 7 then,P = 0.5 x 2 x 15 x 7 = 105
If Lynn can type a page in p minutes what piece of the page can she do in 5 minutes?
1/p=x/5 x=5/p so 5/p pages 1/p=x/5 x=5/p so 5/p pages
How are the factors of polynomial P of x related to the roots of polynomial equation P of x equals to 0?
If p, q, r, ... are the roots of the equations, then (x-p), (x-q), (x-r), etc are the factors (and conversely).
P 2x-9y q 5y plus 6-4x r 3x plus 3y-5 then p plus q plus r?
p + q + r = (2x - 9y) + (5y + 6 - 4x) + (3x + 3y - 5) = x - y + 1
What are polynomials that can be factored?
A polynomial can be factored if it has a rational root. If f(x) is a polynomial function of x and if there is a rational number p such that f(p) = 0 then f(x) = (x-p)*g(x) where g(x) is a polynomial whose order is one less than the order of f(x). If p = q/r where q and r are integers, then (x - p) = (x - q/r) = (rx - q)/r which is a rational binomial factor. This does not work if p is irrational which is why p must be rational.
What is the algebraic expression of 5 times the sum of p and r?
" 5(p+r) " is.
If a certain sum of money at SI doubles itself in 5 yrs then what is d rate?
it is fifth root of 2 = exp (log 2)/5) = 1.1487 = 14.87% The above applies to Compound Interest: At Simple Interest I = PTR/100. In this case I = P, T = 5 and R is unknown. 100 x I = I x 5 x R ie 100 = 5 x R so R = 20%
