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2 years ago

WHO WANTS TO PLAY TRUTH OR DARE?????!!!!!

Mathematics

2 answers:

babunello [35]2 years ago

8 0

Answer:

I am in for the game......

lawyer [7]2 years ago

7 0

Answer:

Meeeeeee

Step-by-step explanation:

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X^2+4x+20=12x-5 Solve this equation

Scrat [10]

Answer:

4 + (or -) 3i

Step-by-step explanation:

Hi!

Alright, so we're going to move all of the variables and constants to one side. Then, using the quadratic formula, we'll find the answer.

1. Move 12x-5 to the left side of the equation by

a. Subtracting 12x from both sides

b. adding 5 to both sides.

1: x^2+4x+20-12x+5

2. Group the common terms

x^2+4x-12x+20+5 --> x^2-8x+25

3. Look at the problem. We can't factor this.

Explanation for why this isn't factorable (you can skip this)

(1) 25 is positive, so its two factors will both be either positive or negative. We're looking for a negative 8, so let's go with negative.

(2) Factors of 25: 1 & 25, 5 &5

Seeing the problem? Ya, none of the factors of 25 sum to eight. So, instead, we're going to use the quadratic formula.

4. So, the quadratic formula: $\frac{-b+-\sqrt{b^2-4ac} }{2a}$

Our equation is x^2-8x+25=0

a is the constant in front of the x^2

b is the constant in front of the x

c is the term without any x values

so, a=1, b=-8, and c= 25

Into equation:

$\frac{8+-\sqrt{64-4(1)(25)} }{2a}$ = $\frac{8+-\sqrt{64-100} }{2}$ = $\frac{8+-\sqrt{-36} }{2}$

8/2 = 4

sqrt(-36) = 6i

6i/2 = 3i (remember, we still have the two in the denominator)

4 + (or -) 3i

8 0

2 years ago

Read 2 more answers

Please solve i will give brainiest 100 point question ****** do the whole page please need to pass or i will fail its my final t

dmitriy555 [2]

Answer:

1. Find the difference between the areas.

Area of the small rectangle: $(x+2)(x+7)=x^2+7x+2x+14=x^2+9x+14$

Area of the big rectangle: $(x+9)(x+11)=x^2+11x+9x+99=x^2+20x+99$

The difference is: $11x+85$

$( x^2+20x+99)- (x^2+9x+14)=x^2+20x+99-x^2-9x-14=11x+85$

You can solve this question just by looking at the graph.

a) The height is 4 meters.

$f(d)=h=-2d^2+7d+4$

To find the height of the bleachers, we should consider the moment before the shoot, when the distance is equal to 0.

$f(0)=h=-2(0)^2+7(0)+4$

$h=4$

The height is 4 meters.

b) 9 meters.

For $d=1$

$f(1)=h=-2(1)^2+7(1)+4$

$f(1)=h=-2+7+4$

$h=9$

b) The ball travels 4 meters.

But to calculate it, it is when $h=0$

$0=-2d^2+7d+4$

Using the quadratic formula:

$d=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$d=\frac{-7 \pm \sqrt{7^2-4\left(-2\right)4}}{2\left(-2\right)}$

$d=\frac{-7\pm\sqrt{81}}{-4}$

$d=\frac{-7\pm9}{-4}$

It will give us to solutions, once it is a quadratic equation, but we are talking about a positive distance.

$d=-\frac{1}{2} \text{ or }d=4$

In this question, we have to find the area of the cylinder and the sphere.

From the information given, we have

a = 5mm and d = 5mm, therefore the radius is 2.5 mm.

The volume of a cylinder:

$V=\pi r^2h$

$V=\pi (2.5)^2 \cdot 5$

$V=31.25 \pi$

$V_{c} \approx 98.17 \text{ m}^3$

The volume of the sphere:

$V=\frac{4}{3} \pi r^2$

$V_{s} \approx 65.4 \text{ m}^3$

The volume of the capsule is approximately $163.57 \text{ m}^3$

3 0

3 years ago

(WILL MARK AS BRAINLIEST) Consider the graph of quadrilateral WXYZ.

DerKrebs [107]

The first, third, fifth, and last one are right. Do you want me to show you the steps or are u good

7 0

3 years ago

Read 2 more answers

HELP HELP HELP PLS SOMEBODY PLS

Elodia [21]

Answer:

A) Both estimates are slightly larger, so it is reasonable.

Step-by-step explanation:

Since 1/2 = 5/10

And 1/5 = 8/40

Both estimates are larger

7 0

2 years ago

What is the volume of the rectangular prism? 94.5 yd3 58.0 yd3 25.5 yd3 20.5 yd3

aliina [53]

Answer:

94.5yd³

Step-by-step explanation:

volume = length × width × height

length = 7 yd , width = 4.5 yd and height = 3 yd

so volume = 7 × 4.5 × 3 = 94.5yd³

7 0

2 years ago