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2 years ago

Help me pleeaaseeeee

Mathematics

2 answers:

kykrilka [37]2 years ago

7 0

Answer:

120 degrees

Step-by-step explanation:

the angle is larger than 90 degrees but smaller than 180. if you add 90+15 you'd get 105 degrees but that seems a little too small so your best bet is 120

zhenek [66]2 years ago

5 0

Answer:

100?

Step-by-step explanation:

Yan po sagot ko e natama naman kami

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Evaluate C_n.xP^xQn-x For the given n=7, x=2, p=1/2

r-ruslan [8.4K]

Answer:

The value of given expression is $\frac{21}{128}$ .

Step-by-step explanation:

Given information: n=7, x=2, p=1/2

$q=1-p=1-\frac{1}{2}=\frac{1}{2}$

The given expression is

$C(n,x)p^xq^{n-x}$

It can be written as

$^nC_xp^xq^{n-x}$

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.

$^7C_2(\frac{1}{2})^2(\frac{1}{2})^{7-2}$

$\frac{7!}{2!(7-2)!}(\frac{1}{2})^2(\frac{1}{2})^{5}$

$\frac{7!}{2!5!}(\frac{1}{2})^{2+5}$

$\frac{7\times 6\times 5!}{2\times 5!}(\frac{1}{2})^{2+5}$

$21(\frac{1}{2})^{7}$

$\frac{21}{128}$

Therefore the value of given expression is $\frac{21}{128}$ .

7 0

3 years ago

I need help now it’s due soon

zalisa [80]

Answer:

Ordered pairs are ( -3, 0) (0, 3)

Step-by-step explanation:

Now when your graphing, go up 3 spots in the y-axis ( up & down) and plot your point now do the same for your x-axis (( left and right), so go over to the left 3 places, and there now connect the 2 points and your done. Hope that helps!

7 0

3 years ago

What is the index? <img src="https://tex.z-dn.net/?f=%20-%2012%20%5Csqrt%5B5%5D%7B7x%7D%20" id="TexFormula1" title=" - 12 \s

Lyrx [107]

12(7x)^1/5

This is simplification into index form, the index itself is the 5th root of 7x if you just wanted to state what it is

7 0

3 years ago

Read 2 more answers

Pleaseeeee helppp me quick

Mamont248 [21]

Answer:

-2 x -3/2