All categories

3 years ago

Is the function tan t positive or negative in Quadrant IV?

2 answers:

6 0

C means that only the Cosine is positive in quadrant IV
A in quadrant I means that All signs are positive
S means that only the Sine is positive in quadrant II
T means that only the Tangent is positivein quadrant III

Remember C.A.S.T.

Hoped I Helped :D

-Nullgaming650

Zinaida [17]3 years ago

5 0

The A in quadrant I means that All signs are positive in quadrant I, the S means that only the Sine is positive in quadrant II, the T means that only the Tangent is positive in quadrant III, and the C means that only the Cosine is positive in quadrant IV.

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GIven f(x) = 3x + 2, Find f(x) = 8 (Solve for x)

vodomira [7]

F(x)=8
3x+2=8
-2 both sides
3x=6
Divide 3 both sides
X=6/3
X=2

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3 years ago

Solve the quadratic. x^2+8x+3=0

Reil [10]

Factor
find wht 2 numbers add to 8 and multiply to 3
none do

use quadratic formula which can be used when
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}}-4ac }{2a}$

a=1
b=8
c=3

x= $\frac{-8+/- \sqrt{8^{2}-4(1)(3)} }{2(1)}$
x= $\frac{ -8+/- \sqrt{64-12} }{2}$
x= $\frac{ -8+/- \sqrt{52} }{2}$
x= $\frac{ -8+/- 2 \sqrt{13} }{2}$
x= $-4+/- \sqrt{13}$

x= $-4+ \sqrt{13}$ or x= $-4- \sqrt{13}$
aprox x=-7.60555 or x=-0.394449

6 0

3 years ago

Read 2 more answers

4/x - 3/y = 1 ; 6/x + 15/y = 8 solve this equation

Soloha48 [4]

Answer:

x=2

y=3

Solution:

First we find common denominators. It is "xy". Then we multiply numerators by common denominator. We get followings:

(4y-3x)/xy=1; (6y+15x)/xy=8

Then

4y-3x=xy;

6y+15=8xy

Multiply first equasion by 5

20y-15x=5xy

Now we add two equasions to get one

20y-15x=5xy

6y+15x=8xy

We get

26y=13xy

Cut "y" and we will find "x"

26=13x

x=2

Put x value into the first equasion(4y-3x=xy) to find out "y"

4y-6=2y

2y=6

y=3

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3 years ago

Lamar wants to determine the movie preferences

shepuryov [24]

Answer:

male comedy: 31 male drama: 9

female comedy: 36 female drama: 24

Step-by-step explanation:

add f+m=100 total

31 males for comedy

40 males - 31 males = 9 males for drama

55% chose comedy so 55-31 males = 24 females for comedy

60 total females - 24 for comedy = 36 females for drama

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3 years ago

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which of the following is the algebraic expression that best describes the sequence 3, 9, 27, 81, 243,...?

Anton [14]

${3}^{n}$

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3 years ago