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3 years ago

Find the exact value of tan-1(1). (5 points)

Mathematics

2 answers:

zzz [600]3 years ago

6 0

Step-by-step explanation:

you can see that in log table

morpeh [17]3 years ago

6 0

Answer:

pi/4

Step-by-step explanation:

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The area of circle Z is 64 t ft?.

barxatty [35]

Answer:

O r= 32 ft

Step-by-step explanation:

im not sure this is right sorry i tried lol

5 0

3 years ago

Could someone explain why the value of x is (-2).

irina [24]

Answer:

$x=-2$

Step-by-step explanation:

Given equation:

$2x^3+16=0$

To solve for the unknown variable x, apply arithmetic operations to isolate the variable.

Subtract 16 from both sides:

$\implies 2x^3+16-16=0-16$

$\implies 2x^3=-16$

Divide both sides by 2:

$\implies \dfrac{2x^3}{2}=\dfrac{-16}{2}$

$\implies x^3=-8$

Take the cube root of both sides:

$\implies \sqrt[3]{x^3}=\sqrt[3]{-8}$

$\implies x=-2$

When taking the cube root of a negative number, the result will be negative. To understand why, examine what happens when we cube a negative number.

When a number is cubed, it is multiplied by itself, then by itself again.

When multiplying a negative number by another negative number, the result is always positive.

When multiplying a positive number by a negative number, the result is always negative.

Therefore:

$\begin{aligned}\implies (-2)^3 &= -2 \cdot -2 \cdot -2\\ & = 4 \cdot -2\\& = -8\end{aligned}$

So if -8 is cube rooted, the result is -2.

8 0

2 years ago

Read 2 more answers

Can someone help me with this one please

Step2247 [10]

Answer:

Step-by-step explanation:

Find the Rate of Change

The rate of change = Δy/Δx

(20 - 16) / (8 - 6) = 4/2 = 2 gal / minutes

Slope and Graph

The graph is given below. It shows the various points plotted and labeled.

The box near the y axis should be labeled gallons [in the tank]

The box under the x axis (if you have such a thing) should be labeled Time in minutes.

5 0

4 years ago

Does anybody know how to make a pie chart out of this

garri49 [273]

Answer:

Step-by-step explanation:

since it is 100% and the pie chart circle is 360°, then for each % it will be 3.6°

applying this into drawing, just times 3.6° to the percentage and then get the final angle for the data.

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if you don't need to be so concise, just see as you fit

3 0

4 years ago

Help me please!!!!!!!!!!!!!!!!!

RSB [31]

Answer:

3x^4+13x^3−3x^2+18x+4

The correct answer is A

Hope This Helps!

3 0

3 years ago