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4 years ago

Part 2:

Mathematics

1 answer:

anastassius [24]4 years ago

5 0

Answer:

Whats the question?

Step-by-step explanation:

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If you multiply -13 by itself 35 times will the answer be negative?

e-lub [12.9K]

Answer:

Yes, the answer is -972786042517719014174576083150881262357

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

How many ways can the words in d-r-a-g-o-n-f-l-y be arranged

GarryVolchara [31]

Answer:

362880 ways

Step-by-step explanation:

The word dragonfly has 9 different letters.

So, to find how many ways this word can be arranged, we just need to calculate the factorial of 9:

First letter has 9 possibilities

Second letter has 8 possibilities (one used)

Third letter has 7 possibilities (two used), and so on.

So the number of ways is:

9*8*7*6*5*4*3*2*1 = 362880 ways

7 0

3 years ago

If the area of a triangle is 48, what is the value of x to the nearest degree?

Jobisdone [24]

Answer:

x ≈ 56°

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = $\frac{1}{2}$ bh ( b is the base and h the height )

Here b = 8 and A = 48, thus

$\frac{1}{2}$ × 8 × h = 48, that is

4h = 48 ( divide both sides by 4 )

h = 12

Using the tangent ratio in the right triangle

tan x = $\frac{opposite}{adjacent}$ = $\frac{12}{8}$ , thus

x = $tan^{-1}$ ( $\frac{12}{8}$ ) ≈ 56° ( to the nearest degree )

7 0

3 years ago

I’ve been stuck on question 1 for a while, can you guys help?

MakcuM [25]

Answer:

$h=20$ **

**The picture is not accurate for this problem.

Step-by-step explanation:

I would use Pythagorean Theorem to setup two equations since there are two triangles with no angle information.

Let $BC=x+(99-x)$ where $x$ is equal to the first partition of $BC$ (reading from left to right) and $(99-x)$ is equal to the second partition of $BC$ (reading from left to right).

We have the following system to solve:

$20^2=h^2+x^2$

$101^2=h^2+(99-x)^2$

I will use elimination to first solve for $x$ .

Subtract the equations:

$20^2-101^2=x^2-(99-x)^2$

Factor both sides using $a^2-b^2=(a-b)(a+b)$ :

$(20-101)(20+101)=(x-(99-x))(x+(99-x))$

Simplify inside the $($ $)$ .

$(-81)(121)=(2x-99)(99)$

Divide both sides by 9:

$(-9)(121)=(2x-99)(11)$

Divide both sides by 11:

$(-9)(11)=(2x-99)(1)$

Simplify both sides:

$-99=2x-99$

Add 99 on both sides:

$0=2x$

Divide both sides by 2:

$x=0$

Now go to either equation we had in the beginning to find $h$ .

$20^2=h^2+x^2$ with $x=0$

$20^2=h^2$

$20=h$

4 0

3 years ago

How do I solve this equation?

muminat

Answer:

x=4,-3

step-by-step

8 0

3 years ago