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lana [24]
3 years ago
15

What are the

Mathematics
1 answer:
mario62 [17]3 years ago
5 0

Answer:

x = 1+√83 i/6 and 1-√83 i/6

Step-by-step explanation:

Given the quadratic expression;

3x^2-x+7 =0

Using the general foemula to find x

x = -b±√b²-4ac/2a

From the equation

a = 3, b = -1 and c = 7

Substitute

x = -(-1)±√(1)²-4(3)(7)/2(3)

x = 1±√1-84/6

x = 1±√-83/6

x = 1±√83 i/6

x = 1+√83 i/6 and 1-√83 i/6

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Step-by-step explanation

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Cara randomly chose a date in the month of
AfilCa [17]

Answer: D. 3/40

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There is a 6/30 chance that Cara got a date that was a multiple of 5 since there are 6 multiples of 5 in a matter of the 30 days of June (5, 10, 15, 20, 25, 30). There is also a 3/8 chance that she will chose a vowel in the word MATHLETE since there are 3 vowels within these 8 letters (A, E, E). With this information, you must multiply the fractions of 6/30 and 3/8 together in order to find the probability of chosing both a multile of 5 as well as a vowel. This can be done by multiplying the numerators together and the denonimators together and then simplifying the fraction to receive an answer of 3/40.

6 0
3 years ago
If m∠A + m∠B = 88° and m∠A + m∠B + m∠C = 150°, which property of equality will you use in the first step to find m∠C? Question 3
Verdich [7]

Answer:

Substitution Property of Equality

Step-by-step explanation:

The substitution property of equality states that if x = y, then x can be substituted in for y in any equation, and y can be substituted for x in any equation.

In this case, m∠A + m∠B in the second equation is substituted by 88°, from the first equation. This allows as to find m∠C as follows:

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6 0
3 years ago
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ExtremeBDS [4]

Answer:

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Step-by-step explanation:

First, we figure out the formula for areas of trapezoids is (a+b)/2*h.

Next, we plug in the numbers which will give use the equation:

22/2*10

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-60 lovee , you welcome .
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