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3 years ago

14

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1 answer:

pychu [463]3 years ago

6 0

The point slope formula of a line:

$y-y_1=m(x-x_1)$

$m=\dfrac{\Delta y}{\Delta x}\\\\\Delta y=-3,\ \Delta x=5\\\\m=\dfrac{-3}{5}=-\dfrac{3}{5}$

$(-2,\ 3)\to x_1=-2,\ y_1=3$

Substitute:

$y-3=-\dfrac{3}{5}(x-(-2))\\\\y-3=-\dfrac{3}{5}(x+2)$

Answer: B.

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wariber [46]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Find all complex solutions of 5x^2+5x+3=0.

oksian1 [2.3K]

Answer:

see explanation

Step-by-step explanation:

5x² + 5x + 3 = 0 ← in standard form

with a = 5 , b = 5 , c = 3

Solve using the quadratic formula

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= $\frac{-5+/-\sqrt{25-60} }{10}$

= $\frac{-5+/-\sqrt{-35} }{10}$

= $\frac{-5+/-\sqrt{-1(35)} }{10}$

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Then

x = $\frac{-5}{10}$ ± $\frac{1}{10}$ i $\sqrt{35}$ , that is

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3 years ago

Ash buys 5 bunches of flowers. Each bunch contains 10 flowers. He gets 8 more flowers from his yard.

Semenov [28]

Answer:

5 x 10 + 8 = f

Step-by-step explanation:

The reason it is 5 x 10 + 8 = f, is because each bunch has 10 and Ash has five.

In order to find how many flowers he has in 5 bunches is to multiply by how many flowers each bunch has.

Then he gets 8 more flowers which is why it has +8 in the equation.

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2 years ago

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zheka24 [161]

Answer:

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Step-by-step explanation:

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$log_{10}y=0.4785+1.468x$ , which can then be written in exponential form as:

$10^{0.4785+1.468x}=y$

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2 years ago