3 years ago

Identify the like terms of 6d: 3c, 3d, 6c, 6, 4d, 3

Mathematics

1 answer:

Goryan [66]3 years ago

4 0

The answer would be 3d and 4d

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The question is in the screenshot

Sidana [21]

Answer:

b. -36/77

Step-by-step explanation:

As 0 < x < $\pi$ /2 => tan x > 0

As 0< y < $\pi$ /2 => tan y > 0

We have the formula:

$\frac{1}{sin^{2}x } =1 + cot^{2}x$ => $\frac{1}{(8/17)^{2} }$ = $1+cot^{2}x$ => $cot^{2} x=225/64$

As tan x = 1/(cotx) => $tan^{2}x = \frac{1}{cot^{2}x} =\frac{1}{225/64} = \frac{64}{225}$

As tan x > 0 => tan x = 8/15

$\frac{1}{cos^{2}y } = 1+tan^{2}y$ => $\frac{1}{(3/5)^{2} } = 1 + tan^{2} y$ => $tan^{2}y=\frac{16}{9}$

As tan y > 0 => tan y = 4/3

As tan (x-y)= $\frac{tan x - tan y}{1+ tanx * tany}$ $=\frac{(8/15)-(4/3)}{1+(8/15)*(4/3)} = \frac{-36}{77}$

8 0

3 years ago

If three times a number is increased by 4, the results is -8. find the number

skad [1K]

Answer: -4

Step-by-step explanation:

3x + 4 = -8

3x= -12

x = -4

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6 0

3 years ago

Read 2 more answers

Write the equation of the line that passes through(-2,1)and is prependicular of the line 3x-2y=5

almond37 [142]

The equation is y=-2/3x-1/3 i think

6 0

4 years ago

If (x + 1)(x-3) = 5, then which of the following statements is true?

bixtya [17]

Answer:

x=−2 or x=4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

x2−2x−3=5

Step 2: Subtract 5 from both sides.

x2−2x−3−5=5−5

x2−2x−8=0

Step 3: Factor left side of equation.

(x+2)(x−4)=0

Step 4: Set factors equal to 0.

x+2=0 or x−4=0

x=−2 or x=4

5 0

4 years ago

What is the answer for this equation? <br> -6x = -36

Anuta_ua [19.1K]

-6x=-36 then u divide by -6 so it is...
x=6

5 0

4 years ago

Read 2 more answers