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2 years ago

Rewrite cot 80° in terms of its cofunction.

Mathematics

1 answer:

zysi [14]2 years ago

8 0

Answer:

tan 10 degrees.

Step-by-step explanation:

tan x = cot (90 - x) so:

cot 80 = cot (90 - 10)

= tan 10.

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Evaluate the expression<br> (-2)3•(-6)

den301095 [7]

(-2)3•(-6)
=-6•(-6)
=36

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2 years ago

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The answer and you got it

Ksju [112]

It would be nice If I could read it better. The answer is C if is says angle 3 and angle 5.

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2 years ago

30 POINTS!! Write the slope-intercept form of the equation for the line.

Anton [14]

Answer:

B. $y = -\frac{3}{10}x + \frac{1}{2}$

Step-by-step explanation:

Well slope-intercept form is $y = ax + b$ .

Let's start with the slope.

In this case, finding the slope is easy.

It should have a negative slope.

So we can cross out answer choices A. and C.

Also, we can cross out D. because it just makes no sense, -10/3, if you start from the y-intercept and go down 10 and across 3, yeah that's

not the slope.

So we can cross out D.

The only answer choice left is B.

We can tell the y-intercept is 1/2 because like come on so B is the correct answer.

B. $y = -\frac{3}{10}x + \frac{1}{2}$

8 0

2 years ago

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Find the value of questions

Zolol [24]

Answer:

The simplified expression is:

$\frac{3^9y}{2\times \:81}=\frac{243y}{2}$

Step-by-step explanation:

Given the expression

$\frac{3^9\times \:y}{2\times 81}$

solving the expression

$\frac{3^9\times \:y}{2\times 81}=\frac{3^9y}{162}$

$=\frac{3^9y}{3^4\times \:2}$ ∵ $162=3^4\times \:2$

$=\frac{3^5y}{2}$ ∵ $\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}$

$=\frac{243y}{2}$ ∵ $3^5=243$

Therefore, the simplified expression is:

$\frac{3^9y}{2\times \:81}=\frac{243y}{2}$

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2 years ago

2 3/4 x 2 1/2 as a fraction

pentagon [3]

Answer:

Step-by-step explanation:

2*4+3= 11/4

2*2+1= 5/2

11/4 * 5/2 = 55/8

Simplified 6 7/8

7 0

1 year ago

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