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Nookie1986 [14]

3 years ago

5

I'm thinking of two numbers. The first plus twice the second equals 11. Twice the first plus three times the second equals 50. W

hat are the numbers?

1 answer:

valentinak56 [21]3 years ago

3 0

2x + 4y - 2x - 3y = 22 - 50

y = -28

substitute into the 1st equation to find x

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Which has the same value as 5/8 ÷2.. A 5/8 × 2/1. b. 8/5 ×2/1 . c5/8 ÷2/1. .d.5/8 × 1/2

Kisachek [45]

Answer:

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To change division into multiplication, you must find the reciprocal by flipping the second fraction (note that if it is a whole number, as in this case, it is technically over 1).

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d. is your answer.

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3 years ago

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If 1 is a solution to g (X)=0 what is the other solution

Lana71 [14]

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4 years ago

Use implicit differentiation to find an equation of the tangent line to the curve at the given points. (x2 + y2)2 = 3x2y − y3;

Andrew [12]

Answer:

a. $y+1=0$

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Step-by-step explanation:

We are given that

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a.(0,-1)

Differentiate w.r.t x

$2(x^2+y^2)(2x+2yy')=6xy+3x^2y'-3y^2y'$ .....(1)

Substitute x=0 and y=-1 in equation (1)

$2(0+1)(-2y')=-3y'$

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$y'=0$

$m=y'=0$

Point-slope form:

$y-y_0=m(x-x_0)$

Using the formula

$y+1=0$

This is required equation of tangent line to the given curve at point (0,-1).

b.(-1/2,1/2)

Substitute the value in equation (1)

$2(1/4+1/4)(-1+y')=6(-1/2)(1/2)+3(1/4)y'-3(1/4)y'$

$2(2/4)(-1+y')=-3/2+3/4y'-3/4y'$

$-1+y'=-3/2$

$y'=-3/2+1=\frac{-3+2}{2}=-\frac{1}{2}$

$m=y'=-1/2$

Again using point-slope formula

$y-1/2=-1/2(x+1/2)$

$\frac{2y-1}{2}=-\frac{1}{4}(2x+1)$

$2y-1=-\frac{1}{2}(2x+1)$

$4y-2=-2x-1$

$2x+4y=2-1$

$2x+4y=1$

5 0

3 years ago