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3 years ago

How to Graph 12x−2y=8

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

6 0

Answer: Slope is 6 and y-int is -4. Go from there.

Step-by-step explanation: Put the equation in y= mx + b form or just find the slope from the ax + by = c formula using -a/b. -12/-2 is 6, which gives you to the slope. To find one point to start from to graph, plug in 0 for x and fin dy, which is the y int. In thins case, y int is -4, so you have a point (0,-4) on this line. Now you're set to graph.

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Find the exact value by using a half angle identity.tan 75°

kramer

The trigonometric function is given as

$\tan 75^{\circ}$

Apply the half angle identity to find the value of tan 75 ,

$\tan (\frac{u}{2})=\frac{\sin u}{1+\cos u}$

Here,

$\tan (\frac{150^{\circ}}{2})=\frac{\sin150^{\circ}}{1+cos150^{\circ}}$ $\tan (75^{\circ})=\frac{\frac{1}{2}}{1-\frac{\sqrt[]{3}}{2}}=\frac{\frac{1}{2}}{\frac{2-\sqrt[]{3}}{2}}^{}$ $\tan 75^{\circ}=\frac{1}{2-\sqrt[]{3}}$

Now rationalize the function.

$\tan 75^{\circ}=\frac{1}{2-\sqrt[]{3}}\times\frac{2+\sqrt[]{3}}{2+\sqrt[]{3}}=\frac{2+\sqrt[]{3}}{4-3}=\frac{2+\sqrt[]{3}}{1}$

Again simplify the trigonometric function,

$\tan 75^{\circ}=2+1.732=3.732$

Hence the answer is 3.732.

5 0

1 year ago

−7 − 3a = 17, then \frac{3}{4}a = ____?

Ilia_Sergeevich [38]

Answer:

-9/2

Step-by-step explanation:

-7-3a=17

-1-17=3a

-18=3a

a=-18/3

a=-6

The value of fac{3}{4} a = (3/4)(-6)

= -18/4

= -9/2

3 0

3 years ago

Lesson 6 Homework Practice Select an Appropriate Display

Naddika [18.5K]

Can’t answer this as it gives no information?

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3 years ago

How do you evaluate the expression to this problem 24 divided by (-4)+(-2) times (-5)

Tju [1.3M]

24/-30 would be the answer

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3 years ago

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il63 [147K]

Answer: I think it it 5 if

Step-by-step explanation:

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3 years ago