NEED HELP! DUE TOMORROW 2/4/2021

1 answer:

6 0

The second Version of the game is greater for hitting the down button because substituting any number for x, the second equation would always end up having a greater amount.

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Find the exact value of cos(arcsin(1/4)). For full credit, explain your reasoning.

Westkost [7]

First way
arcsin(1/4) means that 1/4 sin of the angle.

sin(α)=1/4
sin²α+cos²α=1
(1/4)²+cos²α=1
cos²α=1-1/16 =15/16
cosα=+/-(√15)/4

Second way

sin(α)=1/4 =opposite leg/hipotenuse
cos(α)=adjacent leg/hypothenuse
adjacent leg =√(hypotenuse²- Opposite²)=√(16-1)=√15
cosα=+/-√15/4

For one value of sinα, possible 2 values of cosα.

5 0

3 years ago

Find the difference (4ab-9a-8)-(7ab-1)

OLga [1]

(4ab - 9a - 8) - (7ab - 1)
distribute (multiply) the negative through the parenthesis
(4ab - 9a - 8) - 7ab + 1
No need for other parenthesis because nothing in front or to combine inside. 
4ab - 9a - 8 - 7ab + 1 
Combine like terms
- 3ab - 9a - 7

7 0

3 years ago

A manufacturing company produces parts that are good (90%), partially defective (2%), or completely defective (8%). These parts

Schach [20]

Answer:

The probability that a part is good given that it passed the inspection machine is P=0.978.

Step-by-step explanation:

As the inspection machine detect and discard any part that is completely defective, only the good and partially defective parts passed this inspection.

Then, if we have:

Probability of being a good part P(G)=0.90

Probability of being a patially defective part P(P)=0.02

Probability of being a completely defective part P(D)=0.08.

Probability of passing the inspection machine = 1-P(D)=1-0.08=0.92

Then, the probability of having a good part, given that it passed the inspection machine is:

$P(G|Pass)=P(G)/P(Pass)=0.90/0.92=0.978$

4 0

3 years ago

If f(1)=3 and f(n)=3f(n-1) then find the value of f(6).

trapecia [35]

Answer:

(n-1)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

X+y=8 and 3x+2y=14 for soliving system

kumpel [21]

X+y=8
multiply the first equation by 3 to get rid of x
3x+3y=24
3x+2y=14
subtract equation 1 from 2
y=10
substitute to find the value of x
x+10=8
x=-2

7 0

3 years ago