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rosijanka [135]
3 years ago
5

What subsets are of 64

Mathematics
1 answer:
scoundrel [369]3 years ago
3 0
(), (64)
i think that these are the subsets but im not completely sure

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If angle 2 has a measurement of (x+4) and angle 3 has a measurement of 3x what does x equal?
deff fn [24]

Answer:

x = 44 degrees.

Step-by-step explanation:

Hi!

Since m<2 and m<3 equal 180 degrees (sum of flat line), we can form an equation

(x+4) + (3x) = 180

x + 4 + 3x = 180

4x + 4 = 180

4x = 176

Divide by 4 on both sides

x = 44 degrees

Let me know if you have any questions

6 0
3 years ago
Let x ∼ bin(9, 0.4). find
Kobotan [32]
A.
\mathbb P(X>6)=\mathbb P(X=7)+\mathbb P(X=8)+\mathbb P(X=9)
=\dbinom97(0.4)^7(1-0.4)^{9-7}+\dbinom98(0.4)^8(1-0.4)^{9-8}+\dbinom99(0.4)^9(1-0.4)^{9-9}
\approx0.025

b.
\mathbb P(X\ge2)=1-\mathbb P(X
=1-\dbinom90(0.4)^0(1-0.4)^{9-0}-\dbinom91(0.4)^1(1-0.4)^{9-1}
\approx0.929

c.
\mathbb P(2\le X
=\dbinom92(0.4)^2(1-0.4)^{9-2}+\dbinom93(0.4)^3(1-0.4)^{9-3}+\dbinom94(0.4)^4(1-0.4)^{9-4}
\approx0.663

d.
\mathbb P(2
=\dbinom93(0.4)^3(1-0.4)^{9-3}+\dbinom94(0.4)^4(1-0.4)^{9-4}+\dbinom95(0.4)^5(1-0.4)^{9-5}
\approx0.669

e.
\mathbb P(X=0)=\dbinom90(0.4)^0(1-0.4)^{9-0}\approx0.01

f.
\mathbb P(X=7)=\dbinom97(0.4)^7(1-0.4)^{9-7}\approx0.021

g, h.
For X\sim\mathcal B(n,p), recall that \mathbb &#10;E[X]=\mu_X=np and \mathbb V[X]={\sigma_X}^2=np(1-p). So

\mu_X=9(0.4)=3.6
{\sigma_X}^2=9(0.4)(0.6)=2.16
6 0
3 years ago
Reflect the given triangle over<br> the y-axis.<br> 3 6 31<br> -3 3 3
dedylja [7]

Answer:(-3,6)(-31,-3)(-3,3)

Step-by-step explanation:

4 0
3 years ago
How many sides does a polygon have if each of its interior angle is 120
vesna_86 [32]
There are six sides
8 0
3 years ago
Find the area of a triangle whose sides are 3cm,6cm and 7cm
nadya68 [22]

Answer:

See below

Step-by-step explanation:

It is NOT  a RIGHT triangle so you <u>cannot use</u>   1/2 b * h

 but you can use Heron's Formula

Area = sqrt( s (s-a)(s-b)(s-c) )

s = semi- perimeter =   (3+6+7)/2 = 8

Area = sqrt ( 8 ( 8-3)(8-6)(8-7) )   = sqrt ( 80) = 8.9 cm^2

4 0
1 year ago
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