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anastassius [24]

3 years ago

15

Which expression is equivalent to (3x-1) (-5x+6)?

1 answer:

Gnoma [55]3 years ago

8 0

Answer:

−15x2+23x−6

Step-by-step explanation:

(3x−1)(−5x+6)

=(3x+−1)(−5x+6)

=(3x)(−5x)+(3x)(6)+(−1)(−5x)+(−1)(6)

=−15x2+18x+5x−6

=−15x2+23x−6

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Please answer ASAP. The question is down below.

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Answer: 1) c 2) d

<u>Step-by-step explanation:</u>

Use Pythagorean Theorem to find the hypotenuse (r): x² + y² = r²

Given: x = 2, y = 6

2² + 6² = r²

4 + 36 = r²

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3 years ago

A six-sided number cube is labeled with the numbers 1-6, one number on each face. Each number is used exactly once.

olchik [2.2K]

Answer:

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3 years ago

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The terminal side of an angle θ in standard position passes through the point (3, 1). Calculate the exact values of the six trig

patriot [66]

Answer:

sin α = $\frac{y}{r}$ = $\frac{1}{\sqrt{10} }$

cos α = $\frac{x}{r}$ = $\frac{3}{\sqrt{10} }$

tan α = $\frac{y}{x}$ = $\frac{1}{3}$

cot α = $\frac{x}{y}$ = $\frac{3}{1}$

sec α = $\frac{r}{x}$ = $\frac{\sqrt{10} }{3}$

csc α = $\frac{r}{y}$ = $\frac{\sqrt{10} }{1}$

Step-by-step explanation:

If the point is given on the terminal side of an angle, then:

Calculate the distance between the point given and the origin:

r = $\sqrt{x^2+y^2}$

Here it is: $\sqrt{3^2+1^2}$ = $\sqrt{9+1}$ = $\sqrt{10}$

So we have:

x = 3

y = 1

r = $\sqrt{10}$

Now we can calculate all 6 trig, functions:

sin α = $\frac{y}{r}$ = $\frac{1}{\sqrt{10} }$

cos α = $\frac{x}{r}$ = $\frac{3}{\sqrt{10} }$

tan α = $\frac{y}{x}$ = $\frac{1}{3}$

cot α = $\frac{x}{y}$ = $\frac{3}{1}$

sec α = $\frac{r}{x}$ = $\frac{\sqrt{10} }{3}$

csc α = $\frac{r}{y}$ = $\frac{\sqrt{10} }{1}$

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