3 years ago

I need help on this question

Mathematics

1 answer:

MakcuM [25]3 years ago

4 0

The intercepted arc is twice as much as the intercepted angle.

Multiply the intercepted angle by 2.

110 x 2 = 220 degrees.

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What is the slope of a line containing the points (12, 6) and (3, -5)?

Gelneren [198K]

answer:

9/11

Step-by-step explanation:

(12-3)/(6-(-5))=9/11

7 0

3 years ago

Express 4x^2 − 12x in the form (2x + a)^2 + b.

gladu [14]

Answer: $(2x-3)^2-9\\$

a=-3

b=-9

Step-by-step explanation:

$4x^2-12x=(2x)^2-2*2x*3+9-9\\=(2x-3)^2-9\\$

8 0

2 years ago

The joint probability mass function of XX and YY is given by p(1,1)=0p(2,1)=0.1p(3,1)=0.05p(1,2)=0.05p(2,2)=0.3p(3,2)=0.1p(1,3)=

inessss [21]

Answer:

P(Y=1|X=3)=0.125

Step-by-step explanation:

Given :

p(1,1)=0

p(2,1)=0.1

p(3,1)=0.05

p(1,2)=0.05

p(2,2)=0.3

p(3,2)=0.1

p(1,3)=0.05

p(2,3)=0.1

p(3,3)=0.25

Now we are supposed to find the conditional mass function of Y given X=3 : P(Y=1|X=3)

P(X=3) = P(X=3,Y=1)+P(X=3,Y=2) +P(X=3,Y=3)

P(X=3)=p(3,1) +p(3,2) +p(3,3)

P(X=3)=0.05+0.1+0.25=0.4

$P(Y=1|X=3)=\frac{P(X=3,Y=1)}{P(X=3)} =\frac{p(3,1)}{P(X=3)}=\frac{0.05}{0.4}= 0.125$

Hence P(Y=1|X=3)=0.125

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3 years ago

Write in standard notation. 6.9 × 10^-3

Dafna1 [17]

0.0069

Step-by-step explanation:

6.9 move the decimal 3 places to the left

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3 years ago

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Alexus [3.1K]

Answer:

x= 8.5 and y= 2

Step-by-step explanation:

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2 years ago