3 years ago

What would be the quickest way to complete a rotation of 270 degrees clockwise

1 answer:

7 0

Not sure the type of answer you are looking for. Yet 270 degrees is 3/4 of a full turn. (90 x 3)

Therefore you could state 3/4 of a turn. Also, 1/4 of a clockwise turn would work.

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Mary would like to buy a laptop computer with an original price of $964.60. Which coupon should she use? 50 % off or save $400.0

soldi70 [24.7K]

She should use 50% off.

964 divided by 1/2 = $482

964 - 400 = $564

3 0

3 years ago

Read 2 more answers

What are the coefficients in 9/3+6+9a

Norma-Jean [14]

Answer:

Step-by-step explanation:

cuz it has a variable by it

7 0

2 years ago

An elevator starts at the basement with 8 people (not including the elevator operator) and discharges them all by the time it re

Rus_ich [418]

Answer:

1287

Step-by-step explanation:

Number of people in elevator , n = 8

Number of floors, r = 6

Since they all look alike, arrangement doesn't matter, the we use combination :

(n+r-1 r - 1) = (8+6-1 C 6-1) = 13C5

Recall:

nCr = n! / (n-r)!r!

13C5 = 13! / (13-5)!5!

13C5 = 13*12*11*10*9 / 5*4*3*2*1

= 1287

4 0

3 years ago

Consider the surface z = x 2+4y 2+1. Suppose you are walking on this surface directly above a curve C in the xy-plane, where the

Bess [88]

With $x(t)=\cos t$ and $y(t)=\sin t$ , we have

$z(t)=x(t)^2+4y(t)^2+1$

$z(t)=\cos^2t+4\sin^2t+1$

$z(t)=3\sin^2t+2$

Then $z(t)$ has critical points where

$\dfrac{\mathrm dz}{\mathrm dt}=6\sin t\cos t=3\sin2t=0$

$\implies\sin2t=0\implies2t=n\pi\implies t=\dfrac{n\pi}2$

where $n$ is any integer.

$z(t)$ is increasing wherever $\sin2t>0$ , which happens for

$\dfrac{2n\pi}2$

$\boxed{n\pi$

5 0

3 years ago

Pls help me, i'm giving 30 points and brainliest.

podryga [215]

Answer:

This is a 10 percent increase

Step-by-step explanation:

Last week he spent 10 hours

This week 11 hours

percent increase = (new - original )/original * 100 percent

= (11-10)/10 * 100 percent

= 1/10 * 100 percent

= 10%

This is a 10 percent increase

8 0

3 years ago