3 years ago

Y=-x^2+2x+4 in standard form

Mathematics

1 answer:

jonny [76]3 years ago

7 0

Answer:

I think it already is in standard form.

Step-by-step explanation:

Standard form means that a quadratic function is in the form $ax^2+bx+c=y$ .

In this case, a=-1, b=2, and c=4.

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PLEASE HELP ME!!

Dimas [21]

A) 8^2 + 12^2=c^2
c= 4(13) or 14.42
B) 8^2 + b^2=12^2
b=4(5) or 8.94

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3 years ago

Find the unknown side length x write your answer in simplest radical form

Sauron [17]

Answer:

(B) $4\sqrt{37}$

Step-by-step explanation:

First, we determine the height of the triangle which we label as y.

Using Pythagoras Theorem.

$25^2=7^2+y^2\\y^2=25^2-7^2\\y^2=576\\y=\sqrt{576}\\y=24$

In the smaller right triangle with hypotenuse, x

Base = 7-3 =4 Units

Height, y= 24 Units

Therefore, applying Pythagoras Theorem.:

$x^2=24^2+4^2\\x^2=592\\x=\sqrt{592}\\ x=4\sqrt{37}$

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3 years ago

You are hiking with three friends. You pass a group of six hikers going the other way. Each person in one group greets each pers

cestrela7 [59]

12 I would think maybe

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3 years ago

What else would need to be congruent to show that ABC = PQR by sss

Katen [24]

Ab=pq
qr= bc
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3 years ago

A number plus 16 times its reciprocal equals 4. Find all possible values for the number.(My question was not answered correctly

Gwar [14]

Answer:

-8±√17 and -8±6√2

Step-by-step explanation:

1. x+16/x=4, x^2+16-4x=0. x=-8±√17

2. x+16/x=8, x^2+16-8=0. x=-8±6√2

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2 years ago