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3 years ago

HELPP PLEASE ASAP I REALLY NEED HELP attachment below

Mathematics

2 answers:

iren2701 [21]3 years ago

6 0

When you rotate 90 degrees clockwise, (x,y) becomes (y,-x).

Therefore:
G = (3,1)
H = (0, 4)
I = (-2, -3)

ryzh [129]3 years ago

6 0

G: (-1, 3)
H: (-4, 0)
I: (3, -2)

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The question is in the screenshot

Sidana [21]

Answer:

b. -36/77

Step-by-step explanation:

As 0 < x < $\pi$ /2 => tan x > 0

As 0< y < $\pi$ /2 => tan y > 0

We have the formula:

$\frac{1}{sin^{2}x } =1 + cot^{2}x$ => $\frac{1}{(8/17)^{2} }$ = $1+cot^{2}x$ => $cot^{2} x=225/64$

As tan x = 1/(cotx) => $tan^{2}x = \frac{1}{cot^{2}x} =\frac{1}{225/64} = \frac{64}{225}$

As tan x > 0 => tan x = 8/15

$\frac{1}{cos^{2}y } = 1+tan^{2}y$ => $\frac{1}{(3/5)^{2} } = 1 + tan^{2} y$ => $tan^{2}y=\frac{16}{9}$

As tan y > 0 => tan y = 4/3

As tan (x-y)= $\frac{tan x - tan y}{1+ tanx * tany}$ $=\frac{(8/15)-(4/3)}{1+(8/15)*(4/3)} = \frac{-36}{77}$

8 0

2 years ago

Pls helppppp with my math

kow [346]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

6 0

2 years ago

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Can someone please help me <br>a<br>show your work please

sertanlavr [38]

Answer:

x= 3

Step-by-step explanation:

19x-5=7+15x

19x-15x=7+5

4x=12

x=12/4

x=3

8 0

3 years ago

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13 out of 60 people surveyed were left handed calculate the angle you would use in a pie chart

PtichkaEL [24]

Total angle for the pie chart = 360°

13 out of 60 = 13 / 60

Angle for it = 13 / 60 * 360 = 13 * 6 = 78°

Angle used = 78°

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3 years ago

A bag of potatoes has a mass of 4 kilograms.Some potatoes are taken out.The mass is now 2305 grams.What is the mass of the potat

Colt1911 [192]

First, convert the kilograms to grams. One kilogram is 1000 grams. So multiply it by 1000. Then subtract 2305 from 4000. 4000-2305=1695. So 1695 grams were taken out.

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3 years ago