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3 years ago

Help me please quick!

Mathematics

1 answer:

docker41 [41]3 years ago

3 0

Answer:

Step-by-step explanation:

All angles together in the triangle are 180.

62+90+x=180

x=180-(90+62)

x=180-152

x=28

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Write the sum using summation notation, assuming the suggested pattern continues. 6, -18, 54, -162, +… Is this sequence arithmet

telo118 [61]

Answer:

Hello,

This sequence is geometric with a ratio of -3

the first term is 6

Step-by-step explanation:

$u_1=6\\u_2=-18=6*(-3)=u_1*(-3)\\u_3=54=-18*(-3)=u_2*(-3)=u_1*(-3)^2\\u_4=-162=u_3*(-3)=u_1*(-3)^3\\\\...\\u_{n+1}=u_1*(-3)^n\\\\\displaystyle \sum\limits^\infty _{i=1}u_i = \lim_{n \to \infty} \sum\limits^n _{i=1}u_1*(-3)^{i-1}\\=6*\lim_{n \to \infty} \sum\limits^\infty _{i=1}(-3)^{i-1}\\=6*\frac{1-(-3)^n}{1-(-3)} \\=\dfrac{3}{2} *({1-(-3)^n)\\$

serie does not converge.

7 0

3 years ago

Find the probability that a randomly selected person

Inga [223]

Answer:

The probability that a randomly selected person from this sample liked recreational reading or disliked recreational reading is 1.

Step-by-step explanation:

The probability of an event E is the ratio of the favorable number of outcomes to the total number of outcomes.

$P(E)=\frac{n(E)}{N}$

Mutually exclusive events are those events which cannot occur together. They are also known as disjoint events.

If events A and B are mutually exclusive then:

$P(A\cap B)=0$

The data provided is:

Opinion Like academic Dislike academic Total

reading reading

Liked recreational 136 40 176

reading

Disliked recreational 16 8 24

reading

Total 152 48 200

Denote the events as follows:

X = a person liked recreational reading.

Y = a person disliked recreational reading.

Compute the probability that a randomly selected person from this sample liked recreational reading or disliked recreational reading as follows:

$P(X\cup Y)=P(X)+P(Y)-P(X\cap Y)$

$=\frac{176}{200}+\frac{24}{200}-0\\\\=\frac{176+24}{200}\\\\=1$

Thus, the probability that a randomly selected person from this sample liked recreational reading or disliked recreational reading is 1.

7 0

3 years ago

Can someone explain how to get the right answers thx

Free_Kalibri [48]

Idk exactly what those angles are called. I think supplementary interior. Which means they add up to 180°
So, (4x-2)+(6x-8)=180
Simplify. 10x-10=180
Now we need to get x by itself so add 10 to both sides to get 10x=190
Then divide by 10 to get x by itself x=190/10
So x=19

Hope this helped!!!

4 0

3 years ago

Make L the subject of the formula T=2π√L\G

Trava [24]

Answer:

T^2=4π^2*L/G

L=(T^2*G)/4π^2

Step-by-step explanation:

hope this helps

4 0

3 years ago

Read 2 more answers

In a Create of 30 eggs only 60 % is good how many are bad?

andrew11 [14]

Answer:

In my point of view 40% are bad

5 0

3 years ago