I need help here with explanation pleaseeeee

Mathematics

1 answer:

Murrr4er [49]3 years ago

4 0

(4,80) it’s easy because x comes before y

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Solve the equation x2 + 64 = 100

anyanavicka [17]

Answer:

x = ± 6

Step-by-step explanation:

Given

x² + 64 = 100 ( subtract 64 from both sides )

x² = 36 ( take the square root of both sides )

x = ± $\sqrt{36}$ = ± 6

7 0

3 years ago

How do I solve for X?

lidiya [134]

We use the theory of Pythagoras because the triangle is right.

$AB {}^{2} = AC {}^{2} + BC {}^{2}$
since AB = AC = x
$8 {}^{2} = x {}^{2} + x {}^{2}$
$64 = 2x {}^{2}$
$32 = x {}^{2}$
$x = \sqrt{32}$
$x = \sqrt{16 } \times \sqrt{2}$
$x = 4 \sqrt{2}$

6 0

3 years ago

Read 2 more answers

I need help finding this answer please

Maslowich

To solve this you need to use the formula for Chord-Chord length. You need to know it, it is ab=cd. with this, we can plug numbers in.
a=30
b=x+1
c=2x-6
d=21
So our new equation is:
30(x+1)=21(2x-6)
30x+30=42x-126
156=12x
x=13
This isn't what the question is askign for though, it wants YZ
Which is A+B or 30+x+1 or 21+13=34.
YZ=34

8 0

3 years ago

Find BC if B(8, -7) and C(-4, -2).

polet [3.4K]

4, -8

add the x's and add the y's

4 0

3 years ago

Point-Slope Form Practice

Lana71 [14]

Answer:

$y=-x-7$