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BabaBlast [244]

3 years ago

10

Could someone please help with this

1 answer:

Marizza181 [45]3 years ago

6 0

It is 13 over 31 your welcome

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If sin–¹x +sin–¹y+sin–¹z=π/2, prove that x²+y²+z²+2xyz=1

Slav-nsk [51]

Answer:

Step-by-step explanation:

Points

4 0

3 years ago

A car is purchased for 28,000 after each year, the resale value decreased by 25% what will be the resale value be after 3 years?

alisha [4.7K]

Answer:

11,812.5

Step-by-step explanation:

25% = 0.25

(YEAR ONE)

$28,000*0.25 -- > 21,000$

↓ (why?)

28,000 * 0.25 = 7,000

$28,000 - 7,000 = 21,000$

(YEAR TWO)

$21,000 * 0.25 -- > 15,750$

↓ (why?)

$21,000 * 0.25 = 5250$

$21,000 - 5,250 = 15,750$

(YEAR THREE)

$15,750 * 0.25 -- > 11,812.5\\$

↓ (why?)

$15,750 * 0.25 = 3,937.5\\15,750 - 3,937.5 = 11,812.5$

Answer = 11, 812.5

8 0

2 years ago

The variables x and y vary inversely. Use the given values to write an equation relating x and y. Then find y when x=−3.

-BARSIC- [3]

Answer:

xy-3x=40, x=5

x(y-3)=40

y-3=(40/x)

y=(40/x)+3

y=(40/5)+3

y=8+3

y=11

6 0

3 years ago

What is the range of the following relation?

Ray Of Light [21]

Y is less than or equal to 0
y<0

8 0

3 years ago

SWAN85 please help help

vodka [1.7K]

Answer:

undefined

Step-by-step explanation:

y2-y/x2-x1=

(11/7-4/7)/(2/3-2/3) =(3/11)/0

undefined

6 0

4 years ago