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Elza [17]
3 years ago
12

How on the earth you do this ?

Mathematics
1 answer:
Musya8 [376]3 years ago
6 0
@@@@@    @@@-black(8)

@@@@@@-blue(6)
in all- 14 pens
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Gemma’s mum runs the merchandise shop. She buys 60 t-shirts from the wholesaler at £13 each. She sets the selling price of each
SashulF [63]

Answer:

132.6 profit

Step-by-step explanation:

13 plus 30 percent

$16.9 times 40

$676

16.9 - 30%

$11.83 times 20

$236.6 plus 676

$912.6 - 13 × 60

$912.6 - $780

132.6 profit

3 0
3 years ago
What is the solved equation for x+4=-14?
ira [324]

Answer:

-18

Step-by-step explanation:

3 0
3 years ago
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Prove that:- (1-sinA)(1+sinA)÷(1+cosA)(1-cosA)=cot^2A​
astraxan [27]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x and cos²x = 1 - sin²x

Consider the left side

\frac{(1-sinA)(1 + sinA)}{(1+cosA)(1-cosA)} ← expand numerator/denominator using FOIL

= \frac{1-sin^2A}{1-cos^2A}

= \frac{1-(1-cos^2A)}{1-(1-sin^2A)}

= \frac{1-1+cos^2A}{1-1+sin^2A}

= \frac{cos^2A}{sin^2A}

= cot²A = right side , thus proven

6 0
3 years ago
Solve for y<br> (y/x+6)+1 =(4x/x+6)<br> Enter your answer in the box.<br> y=
k0ka [10]

y = 3x :) hope this helps!

7 0
3 years ago
Please help I'm so depressed:(
Mashcka [7]

omi god..... I used http://convert-to.com/202/speed-units.html and got

1.64 maybe if u try it would be different idk

6 0
3 years ago
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