Find the slope and y-intercept of 2y+5x-8=0

1 answer:

3 0

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Trigonometry, can anybody help??

WINSTONCH [101]

Answer:

angle B: 39

AC: 7.288

AB: 11.58

(note: you cut off the part about rounding so make sure that it's rounded correctly before you put in your answer)

Step-by-step explanation:

To solve this we will use SOH, CAH, TOA

we have the angle and the one opposite to it which means we can use either SOH or TOA

let's use TOA

tan(51)=(9/x)

x= 7.288

We can now use pahtagaryous theroem to solve for the hyptonouse

we have

9²+7.288²=C²

C=11.58

Finally, to find angle B we will recall that the angles of a triangle must add to 180.

51+90+a=180

a=39

5 0

3 years ago

What are the domain and range of the function f(x) = x^4-2x^2-4 ?

tatuchka [14]

Answer:

Think about what domain and range is. Domain is the x and range is the y.

Step-by-step explanation: What values of x can you put in this function? Is there any number you cannot use?? Then what y's will you get back? The best way to find out might be to graph it to look. Since it is an even function whose ends go up, all the y's will be greater than or equal to the y value of the vertex.

7 0

4 years ago

Read 2 more answers

Write an equation of the line that is parallel to y=1/2x+3 and passes through the point (10,-5)

Brut [27]

Answer:

Step-by-step explanation:

x y

y=1/2x+3 and passes through the point (10,-5) 10 = x and -5 =y 1/2(10) - this mean times

-5 = 1/2(10) +3

1/2(10/1) = 1 x 10 and 2 x 1 = 10/2 = 5

-5 = 5 + 3 = 7