Which of the following is a solution of x2 − 10x = –36? negative 5 minus i square root of 10 5 plus i square root of 61 negative 5 minus i square root of 11 5 plus i square root of 11

Answers

Answer 1

Answer: x^2 - 10x + 36 = 0;
We use the quadratic formula: x = ( - b + or - i $\sqrt{ -b^(2)+4ac }$ )/ (2a);
We have a = 1; b = -10; c = 36;
Then, x = ( 10 + or -i $√(44)$ )/2 = 5 + or - $√(11)$ )/2 ;

Answer 2

Answer:

5 plus i square root of 11

Step-by-step explanation:

I got right on the test.

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X^2 - 6x = -9 Solve using the quadratic formula. Approximate answers to the nearest tenth.

Answers

$x^2 - 6x = -9\n\nx^2 - 6x +9=0\n \na=1, \ \ b=-6, \ \ c=9 \n\n \Delta =b^2-4ac = (-6)^2 -4\cdot1\cdot 9 = 36 -36 =0 \n \nx_(o)=(-b )/(2a)=( 6)/(2 )=3$

$(a-b)^2=a^2-2ab+b^2$ <--this is formula
$x^2-6x+9=0$
$x^2-(2*1*3)x+3^2=0$ a=1,b=3
$(x-3)^2$

In a group discussion the group is typically composed of a recorder several participants and what?elevator
a host
a facilitator
a reader

Answers

The answer is a facilitator.
A facilitator is a person who facilitates discussions. He/she plays a neutral in any discussion. The facilitator guides the group to attain their objective. He/She can use different tools to help the group achieve their goals.

Answer:

a facilitator

Step-by-step explanation:

HELP PLEASE RN ASAP!!!!!

Answers

Answer:

0.05555555555555555555

Step-by-step explanation:

9-3 is 6 and 9x12 is 108

6/108 is 0.0555555555555555555555555555555555

10ft 10ft 16ft height is 8 ft what's the area of a triangle

Answers

Answer:

The area is 64ft ^2.

Step-by-step explanation:

I believe this is an isosceles triangle and if so our base will be 16ft and our height will be 8ft, knowing this we can solve for the area.

Use the form A=bh/2

Now plug it in...

A=16x8/2

A=128/2

A=64ft ^2

Hope this helps :)

What is the surface area of the rectangular prism? 155 in² 270 in² 300 in² 310 in² rectangular prism with length labeled 4 inches, width labeled 5 inches, and height labeled 15 inches155 in² 270 in² 300 in² 310 in²

Answers

The surface area of rectangular prism is $310\,\text{i}{{\text{n}}^{\text{2}}}$ .

What is surface area of rectangular prism?

The surface area of the rectangular prism is defined as the sum of the area of lateral faces and rectangular bases.

So, the formula of surface area of rectangular prism is,

$\text{SA = }2lh+2hw+2lw$

Where, $SA$ is the surface area, $l$ is the length, $w$ is the width of the rectangle and $h$ is the height.

It is given that,

$l = 4 in$

$w = 5 in$

$h = 15 in$

Put all the given values in the above formula and solve it.

So,

$\text{SA = }2lh+2hw+2lw$

$=2\left( 4\cdot 15 \right)+2\left( 15\cdot 5 \right)+2\left( 4\cdot 5 \right)$

$=120+150+40$

$\therefore \,\,\text{SA}=310$

Hence, the correct answer is option $d$ that is $310\,\text{i}{{\text{n}}^{\text{2}}}$ .

Learn more about surface area of rectangular prism here

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Answer:

I'm pretty sure the answer is 310

Step-by-step explanation:

Im on the test

An airplane took off and flew at an angle of elevation 12° with the ground. What was the approximate altitude of the airplane, (high how is the plane directly from the ground), after it had flown 8,000 meters (hypotenuse)?

Answers

Answer:

1663 m approx.

Step-by-step explanation:

We have a right triangle in which we know the hypotenuse and need to find the opposite side, so we use the sine function:

sin 12 = h / 8000

h = 8000 sin 12

= 1663 m approx.

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