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3 years ago

Solve: f(x)=2x^2+10x+12 using the Quadratic Formula, show work. Will mark brainiest

Mathematics

2 answers:

Archy [21]3 years ago

3 0

F(x)=2+10+-12 using the

VikaD [51]3 years ago

3 0

The answer is x = - 6 by 7

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If 2x+3y = 4 and y = 34, what is the value of x?

weeeeeb [17]

Answer:

Step-by-step explanation:

2x + 3y = 4

When y = 34

2x + 3(34) = 4

2x + 102 = 4

2x = 4 - 102

2x = - 98

x = -98/2

x = - 49

4 0

3 years ago

Find the 9th term of the geometric sequence 6,-24,96...

spin [16.1K]

Answer:

A9 = 393216

Step-by-step explanation:

the first thing that will help you solve this question is finding the common ratio between each terms

the first thing that I like to do that usually helps is to take the second term (-24) and divide it by the first term (6) --> this will usually help you spot the common ratio fairly quickly

in your case, the common ratio is -4

- you can also check this by following my note above and then multiplying the second term by the common ratio to see if it matches the third term, which it does!

so now you can go about this two different ways

1. solve directly for the 9th term

2. use the nth term formula for geometric sequences

METHOD 1:

if you continue to multiply by -4 to solve for each term you would end up with:

6, -24, 96, -384, 1536, -6144, 24576, -98304, 393216

and you will recieve 393216 as your answer

METHOD 2:

the nth term formula is An = A1*r^(n-1)

where An = the nth term of the sequence

A1 = first term of the sequence (6)

and r = common ratio

using this formula, you would get:

A9 = 6(-4)^8

A9 = 393216

I hope this helped :)

5 0

3 years ago

Y= (x - 2)²-7 how do I graphic this

WITCHER [35]

Hmmm it would be kind of hard to graph as it will be a curved line but the middle of the line would be at (2,-7). Not (-2,-7).

And it will be curving upwards, meaning it will start by going down and end by going up.

Hope this helps some.

7 0

3 years ago

The midpoint of AB is M(-5,1). If the coordinates of A are (-4,-5), what are the coordinates of B?

Elenna [48]

ANSWER:

The midpoint of AB is M(-5,1). The coordinates of B are (-6, 7)

SOLUTION:

Given, the midpoint of AB is M(-5,1).

The coordinates of A are (-4,-5),

We need to find the coordinates of B.

We know that, mid-point formula for two points A $(x_{1}, y_{1})$ and B $(x_{1}, y_{2})$ is given by