Find x! Please help!!

Mathematics

1 answer:

a_sh-v [17]3 years ago

5 0

${(8 + x)}^{2} = {8}^{2} + {15}^{2} \\ {(8 + x)}^{2} = 64 + 225 \\ {(8 + x)}^{2} = 289 \\ {(8 + x)}^{2} = {17}^{2} \\ 8 + x = 17 \\ so \: x = 17 - 8 = 9$

You might be interested in

Is X-1 a factor of x^5-1?

Musya8 [376]

Answer: No

Explanation:

According to factor theorem, if f(x)=0 then x is a factor of the given function or equation.

As x-1 is a factor

We equate x-1=0

x=1

Substituting in x^5-1, we have 1^5-1 =1-1=0.

Hence, it's a factor.

When coming to x^5+1, it would become 1^5+1=1+1=2

So x-1 isn't a factor of x^5+1.

4 0

2 years ago

Here’s another one thank u all for helping me. I really appreciate it!

nikdorinn [45]

Answer:

628 feet..............

6 0

3 years ago

Please answer this question I f0ll0w u and mark brainiest and give many thanks

Elena L [17]

Answer:

look above

Step-by-step explanation:

hope it helps

8 0

2 years ago

Arc MNP equals 126. O is the center. Find angle MOP

Paha777 [63]

We know that

the angle MOP is equal to arc MNP because is a central angle

the answer is
angle MOP=126°

3 0

3 years ago

Prove that root 7 is irrational by the method of contradiction

Alchen [17]

Let assume that $\sqrt7$ is a rational number. Therefore it can be expressed as a fraction $\dfrac{a}{b}$ where $a,b\in\mathbb{Z}$ and $\text{gcd}(a,b)=1$ .