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3 years ago

Please answer correctly !!!!! Will mark brainliest answer !!!!!!!!!!

Mathematics

1 answer:

AnnZ [28]3 years ago

7 0

Answer:

type 2 in the first box,

13/4 in the second box, and

-9/8 in the third one

Step-by-step explanation:Notice that you are asked to write the following quadratic expression in vertex form, so you need to find the "x" value of the vertex, and then the "y" value of the vertex:

$x_{vertex}= -b/2a$

Which in our case is: -13/4

and the value of the y for the vertex is obtained using the functional expression when x equals -13/4:

$f(-13/4)= -9/8$

Then your expression for this quadratic should be:

$f(x)=2\,(x+\frac{13}{4} )^2+(-\frac{9}{8})$

Then type 2 in the first box, 13/4 in the second box, and -9/8 in the third one

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Marcus count a total of 40 wheel from bicycle and tricycles while sitting on a park bench.Marcus counted 8 bicycles. How many tr

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The tricycles have 8.:)

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4 years ago

Need help asap please

jonny [76]

Answer:

B. x= 4

Step-by-step explanation:

We know that,

The result for the intersection of the secant and the tangent is given by by the figure below,

$UV^{2}=UX\times UY$

According to the question, we have,

$8^{2}=x(12+x)$

i.e. $64=12x+x^2$

i.e. $x^2+12x-64=0$

Now, the solution of a quadratic equation $ax^2+bx+c=0$ is given by, $x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$

So, we get,

$x^2+12x-64=0$ implies a= 1, b= 12 and c= -64.

Thus, the solution is given by,

$x=\frac{-12\pm \sqrt{12^{2}-4\times 1\times (-64)}}{2\times 1}$

i.e. $x=\frac{-12\pm \sqrt{144+256}}{2}$

i.e. $x=\frac{-12\pm \sqrt{400}}{2}$

i.e. $x=\frac{-12\pm 20}{2}$

i.e. $x=\frac{-12-20}{2}$ and i.e. $x=\frac{-12+20}{2}$

i.e. $x=\frac{-32}{2}$ and i.e. $x=\frac{8}{2}$

i.e x= -16 and x= 4.

Since, length cannot be negative.

So, we have, x= 4.

8 0

3 years ago

HELP WILL MARK RIGHT ANSWER BRAINLIEST

kumpel [21]

Answer: The temperature decreased at a rate of 6 C per minute.

5 0

3 years ago

What will be the perimeter and the area of the rectangle below if it is enlarged using a scale factor of 2.5?

Elanso [62]

Answer:

300 cm

Step-by-step explanation:

8 x 2.5 = 20

6 x 2.5 = 15

20 x 15 = 300 cm²

7 0

3 years ago

Why you are enjoy math it makeing me angry!?

stealth61 [152]

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i.d.k :)

3 0

3 years ago