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3 years ago

Find sin(a), cos(a), and tan(a). show your work.

Mathematics

1 answer:

katen-ka-za [31]3 years ago

8 0

Answer:

sin is 8/17

cos is 15/17

tan is 8/15

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This problem demonstrates the concept of redundancy, the principle of improving reliability of systems by using redundant or bac

AysviL [449]

Answer:

hello,

Step-by-step explanation:

p(fail)=0.05

p(not fail)=1-0.05=0.95

p(3 fails)=0.05³=0,000125

p(1 or more system not fail)=1-0.05³=0.999875

it increase the security.( here 4/100 for 3 systems)

3 0

3 years ago

What is the probability that a randomly selected person supports the new station??

mezya [45]

Answer:

.52

Step-by-step explanation:

We can write an equation

supports/all

we can see that 27 males and 25 females support which means that

27+25= 52 total people support

now we just need to find the number of people surveyed

we do this by summing everything

27+25+18+13+5+12=100

52/100 = .52

4 0

3 years ago

Read 2 more answers

ajwad went apple picking.He picked a total of 84 apples and brought them all to school.If there are 21 students,how many apples

Grace [21]

I'm pretty sure the answer is 4 because, 4*21= 84.

4 0

3 years ago

Read 2 more answers

What is the slope of y = - x + 7

svet-max [94.6K]

$\green{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}}$

What is the slope of y = - x + 7

$\red{ \bold{ \textit{STANDARD \: EQUATION}}}$

$y = mx + c$

$WHERE \\ m = SLOPE \\ c = Y - INTERCEPT$

$\huge\green{\boxed{\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}}}$

$\blue{A.T.Q}$

$y = mx + c \sim y = ( - 1)x + 7$

$\orange{SO}$

m= (-1)

which is equal to the slope of the equation .

$\red \star{Thanks \: And \: Brainlist} \blue\star \\ \green\star If \: U \: Liked \: My \: Answer \purple \star$

3 0

3 years ago

Please help

ASHA 777 [7]

Answer:

(-6,4)

Step-by-step explanation:

The equations are:

$x^2+4y^2=100\\4y-x^2=-20$

Solving for x^2 of the 2nd equation and putting that in place of x^2 in the 2nd equation we have:

$4y-x^2=-20\\x^2=4y+20\\-------\\x^2+4y^2=100\\4y+20+4y^2=100$

Now we can solve for y:

$4y+20+4y^2=100\\4y^2+4y-80=0\\y^2+y-20=0\\(y+5)(y-4)=0\\y=4,-5$

So plugging in y = 4 into an equation and solving for x, we have:

$x^2=4y+20\\x=+-\sqrt{4y+20} \\x=+-\sqrt{4(4)+20} \\x=+-\sqrt{36} \\x=6,-6$

So y = 4 corresponds to x = 6 & x = -6

The pairs would be

(6,4) & (-6,4)

<u><em>we see that (-6,4) falls in the 2nd quadrant, thus this is the solution we are looking for.</em></u>

5 0

3 years ago

Find sin(a), cos(a), and tan(a). show your work.​

Find sin(a), cos(a), and tan(a). show your work.