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eduard
3 years ago
7

I need help with this question???

Mathematics
1 answer:
polet [3.4K]3 years ago
8 0

Answer:

7x + 3y- 2+6x-1+y^2 = y^2+ 3y+13x- 3

Step-by-step explanation:

Given

7x + 3y- 2+6x-1+y^2

Required

Simplify

Start by collecting like terms

7x + 3y- 2+6x-1+y^2 = y^2+ 3y+7x +6x- 2-1

Simplify like terms

7x + 3y- 2+6x-1+y^2 = y^2+ 3y+13x- 3

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Elanso [62]

Answer:

a) 1/800 or 0.00125

b) i) 0.0013

ii) 0.001

c) 60%

Step-by-step explanation:

T = [tan(2×30)+1][2cos(30)-1] ÷ (y²-x²)

T = (tan60 + 1)(2cos30 - 1) ÷ (41² - 9²)

T = (sqrt(3) + 1)(sqrt(3) - 1) ÷ 1600

T = (3-1)/1600

T = 2/1600

T = 1/800

T = 0.00125

Error: 0.002 - 0.00125

0.00075

%error

0.00075/0.00125 × 100

60%

4 0
3 years ago
Sears has a dishwahsher tjat cost 679 it is.on dale for 35% off how much would you pay
Kruka [31]

if its 679 and is on sale for 35% off the price now would be 441.35

8 0
3 years ago
Please help due ASAP <br> Show workings please
Nostrana [21]

Step-by-step explanation:

I don't know if this is the right way to so it, but I would do it like this

since a triangle has 180 degrees, the angles all have to add up to 180

So 180 = a + b + c

we already know a, its 95

So 180 = 95 + b + c

now we know the equation for b, so we'll just put it there instead of the b, and since the angles are the same, we should put it instead of c too

180 = 95 + (4x-15) + (4x-15)

now subtract 95 from both sides

85 = (4x-15) + (4x-15)

add the xs and numbers together

85 = 8x - 30

now add the 30 to both sides

115 = 8x

divide by 8

your x is 14 3/8 or 14.375 or 115/8

that's not your angle, that's your x

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3 years ago
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spayn [35]
I believe the answer is A goodluck
8 0
3 years ago
I need help fast plzzzzz
PolarNik [594]

Answer:

68

Step-by-step explanation:

Find the vanilla first by dividing 420 by 7 and multiplying the quotient by 2 to get 120.

Then find the banana using the equation 35/100 = x/420, cross multiply to get 147.

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Subtract 267 from 420 to get 153.

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The number of lemon cakes is 68!

(and chocolate cakes is 85)

4 0
3 years ago
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