4 years ago

Simplif the expression -3 ÷ (- 2/5)

Mathematics

1 answer:

kati45 [8]4 years ago

6 0

Answer:

15/2

Step-by-step explanation:

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Tan 45°. tan² 30° tan 60° <br>slove it

makvit [3.9K]

Answer:

$\frac{\sqrt{3} }{3} or \frac{1}{\sqrt{3} }$

Step-by-step explanation:

We can break the problem into three parts,

tan45 = sin(45)/cos(45)= $\frac{\frac{\sqrt{2}}{2} }{\frac{\sqrt{2}}{2} } =1$

$tan^{2}30 =(tan30))^{2}=(sin30/cos30)^2=((1/2)/(\sqrt{3}/2))^2 =(1/\sqrt{3})^2$

$tan60=sin60/cos60=\frac{\sqrt{3}/2 }{1/2} =\sqrt{3}$

Then, $tan45*tan^230*tan60=1*(1/sqrt(3))^2*sqrt(3)=1/sqrt(3)=sqrt(3)/3$

Therefore, the solution is sqrt(3)/3

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2 years ago

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Answer:

frdg

Step-by-step explanation:

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3 years ago

Find the midpoint of the line segment joining the points p1 and p2 <br> P1=(3,-5);p2=(5,-1)

swat32

Find mid pt formula is
$x \: intercept \: \frac{x {}^{2} + x{}^{1} }{2} \\ y \: intercept\frac{y {}^{2} + y {}^{1} }{2}$
so the answer is
$x \: intercept \: \\ \frac{3 + 5}{2} = 4$
$y \: intercept \: \\ \frac{( - 5) + ( - 1)}{ 2} = - 3$
mid pt is (4,-3)

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4 years ago

Which type of function correctly describes the exponential function

Dennis_Churaev [7]

the answer is a. increasing function

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4 years ago

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What is the value of 1/2 divide by 1/3?

Sloan [31]

Answer:

3/2

Step-by-step explanation:

1/2 ÷ 1/3

Keep - Change - Flip

Keep 1/2

Change ÷ to ×

Flip 1/3 to 3/1

1/2 × 3/1 = 1 · 3/2 · 1 = 3/2

6 0

3 years ago

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