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3 years ago

Evaluate 6 + 30 divided (4-5) =

Mathematics

2 answers:

ki77a [65]3 years ago

3 0

Answer:

6 + 30 / (4-5) = - 24

Step-by-step explanation:

4-5 goes 1st then you do 6 + 30 .

36 / -1 = -24

nalin [4]3 years ago

3 0

Hey there!☺

$Answer:\boxed{-24}$

$Explanation:$

$6+30\div(4-5)$

Simplify:

$6+30\div(4-5)=-24$

-24 is the answer.

Hope this helps!☺

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On an eight question true-false quiz, a student guesses each answer. What is the probability that he/she gets at least one of th

Fantom [35]

Answer:

$P[at\ least\ 1] = 0.9961$

Step-by-step explanation:

Given

$Questions = 8$

$Quiz\ Type = True\ or\ False$

Required

Probability that s/he gets at least one correctly

First, we calculate the probability of answering a question correctly

Since, there are just 2 choices (true or false), the probability is:

$P(correct) = \frac{1}{2}$

Similarly, the probability of answering a question, wrongly is:

$P(wrong) = \frac{1}{2}$

The following relationship exists, in probability:

$P[at\ least\ 1] = 1 - P[none]$

So, to calculate the required probability.

First, we calculate the probability that he answers none of the 8 questions correctly.

$P[none] = p(wrong)^8$

$P[none] = (\frac{1}{2})^8$

Substitute $P[none] = (\frac{1}{2})^8$ in $P[at\ least\ 1] = 1 - P[none]$

$P[at\ least\ 1] = 1 - (\frac{1}{2})^8$

$P[at\ least\ 1] = 1 - \frac{1}{256}$

Take LCM

$P[at\ least\ 1] = \frac{256 - 1}{256}$

$P[at\ least\ 1] = \frac{255}{256}$

$P[at\ least\ 1] = 0.9961$

<em>Hence, the probability that s/he gets at least one correctly is 0.9961</em>

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3 years ago

EMERGENCY PLS HELP: Write a ratio that gives the tangent of

Artyom0805 [142]

Tan = opposite/hypotenuse
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3 years ago

A gardener has 140 feet of fencing to put around a rectangular vegetable garden. The function A(w)= 70w - w^2 gives the garden's

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The largest area that can be enclosed will be that of a square (140 ft)/4 = 35 ft on a side. Such a square has an area of (35 ft)² = 1225 ft², not enough for the garden to be 1300 ft². This tells us the solution to the equation you're being asked to write is non-real.

_____

Putting the given numbers in the area equation, you have

... 1300 = 70w -w²

Multiplying by -1 and completing the square, we have

... w² -70w +35² = -1300 +35²

... (w -35)² = 1225 -1300 = -75

Taking the square root shows us the solution is non-real.

... w - 35 = ±√(-75) = ±5i√3

... w = 35 ± 5i√3 . . . . . . . . . after adding 35. These are complex solutions.

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4 years ago

What is the area of the rhombus 10in and 5in

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Answer:25 in^2

Step-by-step explanation:

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3 years ago

108/40 in its simplest form

igor_vitrenko [27]

Answer:

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Step-by-step explanation:

A calculator can tell you the fraction value is 2.7. As the ratio of integers, this is ...

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3 years ago