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4 years ago

What angle do the minute and hour hands of a clock make at 8:00?

Mathematics

2 answers:

horrorfan [7]4 years ago

4 0

8/12 * 360= 240 you can also reduce the fraction to 2/3*360=240 either way you will get the same answer which is 240

katrin [286]4 years ago

3 0

The answer would be 120

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You and three friends order pizza for large drinks in a loaf of Chi's bread you split the cost evenly with your friends what ord

Juliette [100K]

Answer:

I believe it would be division.

Step-by-step explanation:

Sorry if its wrong, i havent done a question like this in a long time, please forgive me!

6 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

enyata [817]

Its the correct answer

85 * 120 + 75*180 = 23, 700

7 0

4 years ago

If ƒ(x) = 2x, then ƒ -1(x) =

barxatty [35]

Answer:

$f^{-1}$ (x) = $\frac{x}{2}$

Step-by-step explanation:

let y = 2x

Rearrange making x the subject

divide both sides by 2

$\frac{y}{2}$ = x

changing y back into terms of x

$f^{-1}$ (x) = $\frac{x}{2}$

8 0

3 years ago

Read 2 more answers

In triangle FGH, is an angle bisector of and perpendicular to . In triangle F G H, angle F G H is cut by perpendicular bisector

Amanda [17]

Answer:

x = 8

Step-by-step explanation:

By first drawing a photo, pasted below, you can plot your points. Then use the formula:

a/c = b/d to plan out your equation

3x - 8/x = 16/x

Cross multiply so you then have:

16x = 3x^2 - 8x

24x = 3x^2

8 = x

To check:

3(8) - 8 = 16

24 - 8 = 16

16 = 16

7 0

3 years ago

Read 2 more answers

Use the polar representation to write the following in the form a + bi (a) (-1+ i)^7 (b) (1+v3i)^10

ira [324]

Answer with Step-by-step explanation:

For any complex number x+iy the polar form is represented as

$z=re^{i\theta }$

where

$r^{2}=x^2+y^2\\\\tan(\theta )=\frac{y}{x}$

Part a) x+iy = -1+i

Thus $r=\sqrt{-1^2+1^2}=\sqrt{2}\\\\ \theta _{1}=tan^{-1}(\frac{-1}{1})=\frac{-\pi }{4}$

Thus using De-Morvier's theorem

$(-1+i)^7=(\sqrt{2}e^{i\frac{-\pi }{4}})^7\\\\\therefore (-1+i)^7=2^{7/2}\cdot e^{\frac{i-\pi }{28}}$

Part 2) x+iy = 1+3i

Thus $r=\sqrt{1^2+3^2}=\sqrt{10}\\\\ \theta _{1}=tan^{-1}(\frac{3}{1})=1.25$

Thus using De-Morvier's theorem

$(1+3i)^{10}=(\sqrt{10}e^{1.25i})^{10}\\\\\therefore (1+3i)^{10}=10^{5}\cdot e^{12.5i}$

3 0

3 years ago