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3 years ago

Write the equation of the line in slope-intercept that has passes through the points and (4, -8). (-3, 27)

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

4 0

Answer:

It's y = -5x + 12 and/or 5x + y = 12

Step-by-step explanation:

(x,y) is really helpful

*I believe that I'm correct, but I would recommend a quick double-check (just like any other math-related question)

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Solve: 5a + 15 = 45<br> O a = 12<br> O a = 6<br> O a = -6<br> O a = -12

anygoal [31]

I believe it’s a = 6

4 0

3 years ago

What is 6+ -5 2/3 in fraction form

aleksklad [387]

Answer:

1/3

Step-by-step explanation:

6+-5 2/3 = 6-5 2/3, so the difference is 1/3

6 0

3 years ago

Use a half-angle identity to find the exact value

Tatiana [17]

Given:

$\cos 15^{\circ}$

To find:

The exact value of cos 15°.

Solution:

$$\cos 15^{\circ}=\cos\frac{ 30^{\circ}}{2}$

Using half-angle identity:

$$\cos \left(\frac{x}{2}\right)=\sqrt{\frac{1+\cos (x)}{2}}$

$$\cos \frac{30^{\circ}}{2}=\sqrt{\frac{1+\cos \left(30^{\circ}\right)}{2}}$

Using the trigonometric identity: $\cos \left(30^{\circ}\right)=\frac{\sqrt{3}}{2}$

$$=\sqrt{\frac{1+\frac{\sqrt{3}}{2}}{2}}$

Let us first solve the fraction in the numerator.

$$=\sqrt{\frac{\frac{2+\sqrt{3}}{2}}{2}}$

Using fraction rule: $\frac{\frac{a}{b} }{c}=\frac{a}{b \cdot c}$

$$=\sqrt{\frac {2+\sqrt{3}}{4}}$

Apply radical rule: $\sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}$

$$=\frac{\sqrt{2+\sqrt{3}}}{\sqrt{4}}$

Using $\sqrt{4} =2$ :

$$=\frac{\sqrt{2+\sqrt{3}}}{2}$

$$\cos 15^\circ=\frac{\sqrt{2+\sqrt{3}}}{2}$

5 0

3 years ago

runners in a marathon are randomly assigned to one of ten corrals to start, and each given a green, blue, or red shirt to wear.

OleMash [197]

Answer:

There isn't a question

Step-by-step explanation:

8 0

2 years ago

Whats 2+2 i dont know what it is

SOVA2 [1]

Answer:

Step-by-step explanation:

2+2=4

thanks:D

5 0

3 years ago

Read 2 more answers

Write the equation of the line in slope-intercept that has passes through the points and (4, -8). (-3, 27) ​

Write the equation of the line in slope-intercept that has passes through the points and (4, -8). (-3, 27)