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3 years ago

HELP NEEDED PLEASE! Solve for x, rounding to the nearest tenth.

Mathematics

1 answer:

KonstantinChe [14]3 years ago

5 0

Answer:

C. x = 6.0

Step-by-step explanation:

If you use the Pythagorean Theorem, you'll see that x^2 + 5^2 = 8^2. That'll simplify down to

x^2 + 25 = 64. Then you subtract 25 from 64 and that'll give you 39. You then have to find what √39 is and that is 6.244, so that is 6.0 simplified to the nearest tenth.

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An article in USA Today stated that Internal surveys paid for by directory assistance providers show that even the most accurate

MariettaO [177]

Answer:

a. 11.26 % b. 6.76 %. It appears so since 6.76 % ≠ 15 %

Step-by-step explanation:

a. This is a binomial probability.

Let q = probability of giving out wrong number = 15 % = 0.15

p = probability of not giving out wrong number = 1 - q = 1 - 0.15 = 0.75

For a binomial probability, P(x) = ⁿCₓqˣpⁿ⁻ˣ. With n = 10 and x = 1, the probability of getting a number wrong P(x = 1) = ¹⁰C₁q¹p¹⁰⁻¹

= 10(0.15)(0.75)⁹

= 1.5(0.0751)

= 0.1126

= 11.26 %

b. At most one wrong is P(x ≤ 1) = P(0) + P(1)

= ¹⁰C₀q⁰p¹⁰⁻⁰ + ¹⁰C₁q¹p¹⁰⁻¹

= 1 × 1 × (0.75)¹⁰ + 10(0.15)(0.75)⁹

= 0.0563 + 0.01126

= 0.06756

= 6.756 %

≅ 6.76 %

Since the probability of at most one wrong number i got P(x ≤ 1) = 6.76 % ≠ 15 % the original probability of at most one are not equal, it thus appears that the original probability of 15 % is wrong.

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3 years ago

Samia created the following tables of values for a linear system. She concluded that there is no

DaniilM [7]

Answer:

Step-by-step explanation:

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3 years ago

What is 6 1/4 - 3 1/3

Anettt [7]

Hey There!

Remember, first find the gcf of 4,3 in this problem it is 12.

Steps to solve

1.6 $\frac{1}{4}$ - 3 $\frac{1}{3}$

2.6 $\frac{1}{4}$ - 3 $\frac{1}{3}$ = 2 $\frac{11}{12}$

So, The answer is <span>2 $\frac{11}{12}$ </span>

Hope This Helps :)

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3 years ago

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The length of a rectangle is 7 inches more than the width. The perimeter is 30 inches. Find the length and the width of the rect

saul85 [17]

Answer:

that's all about my answer