3 years ago

4y−2(3/2y−5) simplify

2 answers:

ivann1987 [24]3 years ago

7 0

First you distribute:
4y - (2 * $\frac{3}{2}$ y) - (2 * 5)
4y - 3y - 10

Then you combine like terms:
(4y + -3y) - 10
1y - 10

Simplify:
y-10

GaryK [48]3 years ago

7 0

2(2y^2+y-7)/y-2. hope it helped.

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Molodets [167]

Part 1

$f(a)=4-7a+16a^2$

Part 2

$f(a+h)=4-7(a+h)+16(a+h)^2\\\\=4-7(a+h)+16(a^2 +2ah+h^2)\\\\=4-7a-7h+16a^2 +32ah+16h^2$

Part 3

$\frac{f(a+h)-f(a)}{h}=\frac{(4-7a-7h+16a^2 +32ah+16h^2-(4-7a+16a^2)}{h}\\\\=\frac{-7h+32ah+16h^2}{h}\\\\=32a+16h-7$

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2 years ago

The eqution of the diagonal of a parallelogram is 3y=5x +k. The two opposite vertices of a parallelogram are the points (1,-2),

astraxan [27]

Answer:

$k = 1$

Step-by-step explanation:

Given

$3y = 5x + k$

Opposite points: $(1,-2)$ and $(-2,1)$

Required

Find k

First, calculate the midpoint of the opposite points.

$(x,y) = 0.5(x_1 + x_2,y_1 + y_2)$

This gives:

$(x,y) = 0.5(1 -2,-2 + 1)$

$(x,y) = 0.5(-1,-1)$

Open bracket

$(x,y) = (-0.5,-0.5)$

The equation $3y = 5x + k$ becomes:

$3 * -0.5 = 5 * -0.5 + k$

$-1.5 = -2.5 + k$

Solve for k

$k = 2.5-1.5$

$k = 1$

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2 years ago

What is the value of the expression (3/7)(-2/5 •9/11)

Alex787 [66]

The answer is 54/385, or 0.14025974025974.

Hope this helps!

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The expression will look like this. (3*6)+4

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3 years ago

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