3 years ago

Find the value of x 2-x7=25

Mathematics

1 answer:

o-na [289]3 years ago

4 0

Answer: 3.285714286

Step-by-step explanation: subtract 2 from both sides then divide by 7

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Mr. Taylor filled out a bracket for the NCAA National Tournament. Based on his knowledge of college basketball, he has a 0.54 pr

boyakko [2]

Answer:

The probability is $2.7327 \times 10^{-9}$

Step-by-step explanation:

The probability of guessing correctly, P = 0.54

Probability of not guessing correctly, q = 1 – P

q = 1 – 0.54 = 0.46

Number of trials, n = 32

Now calculate the probability that Mr. Taylor will pick 32 correctly in first round of the game.

Below is the calculation using binomial distribution.

$Probability = \left ( _{k}^{n}\textrm{} \right )P^{k}(1-P)^{(n-k)} \\= \left ( _{32}^{32}\textrm{} \right )0.54^{32}(0.46)^{(32-32)} \\= 0.54^{32} \\= 2.7327 \times 10^{-9}$

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3 years ago

What is the value of the expression? 3.2(2.3)−4.8 Enter your answer in the box as a decimal.

miss Akunina [59]

2.56 is the value of the expression

4 0

3 years ago

Read 2 more answers

{c(1) = 3/16 {c(n)=c(n−1)⋅4 what is the 3rd term in this sequence?

mote1985 [20]

Answer:

$\large\boxed{c(3)=3}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}c(1)=\dfrac{3}{16}\\\\c(n)=c(n-1)\cdot 4\end{array}\right$

Put n = 2 and next n = 3 to the recursive formula:

$c(2)=c(2-1)\cdot4=c(1)\cdot4\to c(2)=\dfrac{3}{16}\cdot4=\dfrac{3}{4}\\\\c(3)=c(3-1)\cdot4=c(2)\cdot4\to c(3)=\dfrac{3}{4}\cdot4=3$

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3 years ago

Help Please!! What is the value of a? Enter your answer in the box. a =

Talja [164]

Answer:

a=15

Step-by-step explanation:

By pythagoras' theorem

25²=20²+a²

625=400+a² group like terms

a²=625-400

a²=225

$\sqrt{a {}^{2} } = \sqrt{225}$

therefore a=15

6 0

2 years ago

1. The difference of five times a number and 6 is -2.

OlgaM077 [116]

Answer:

Step-by-step explanation:

5-x+6=-2

X=13

5 0

3 years ago