3 years ago

Help me with this math question

Mathematics

1 answer:

aksik [14]3 years ago

7 0

Answer:

Statements A and B are both true.

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The ortho center is (6,4).

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First anserw gets brainest 8th grade, root squared question

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Identify all factors of the expression 12x^2-14x-6

Evgen [1.6K]

Let's solve this by using the quadratic formula:

$\frac{-b+-\sqrt{b^2-4ac} }{2a}$

Note that we only use the coefficients so a=12, b=-14, and c=-6.

Plug values in the quadratic equation:

$\frac{ - ( - 14)± \sqrt{ {( - 14)}^{2} - 4(12)( - 6) } }{2(12)}$

And so by evaluating those values we obtain:

$\frac{14+-\sqrt{484} }{24}=\frac{14+-22}{24} \\\\$

Now we have two answers which are our factors one where we add another where we subtract and so:

First factor:

$\frac{14+22}{24}=\frac{36}{24}=\frac{3}{2}$

Second Factor:

$\frac{14-22}{24}=\frac{-8}{24}=-\frac{1}{3}$

And so your factors are

$\frac{3}{2},-\frac{1}{3}$

meaning that those are your roots/x-intercepts.

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3 years ago

You have three bags, each containing two marbles. Bag A contains two white marbles, Bag B contains two black marbles, and Bag C

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5/6 chance that the next marble will be a white one

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3 years ago

Here are the first four terms of an arithmetic sequence. 3 10 17 24 Find, in terms of n, an expression for the nth term of this

ollegr [7]

Answer:

$a_{n}$ = 7n - 4

Step-by-step explanation:

The n th term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 3 and d = a₂ - a₁ = 10 - 3 = 7 , thus

$a_{n}$ = 3 + 7(n - 1) = 3 + 7n - 7 = 7n - 4

8 0

3 years ago