3 years ago

Write the equation of the line that passes through (7,-4) and (-1,2) in slope-intercept form.

Mathematics

1 answer:

Tema [17]3 years ago

7 0

Answer:

work is shown and pictured

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Diana invested $3000 in a saving account for 3 years. she earned $450 in interest over the time period. what interest rate did s

Lelu [443]

R=i/pt
R=450/3000*3
R=0.05*100=5%

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3 years ago

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H (t) = -t2 + t + 12 <br> Solve by using quadratic formula

Sedaia [141]

The quadratic formula is:

$x=\frac{-b+\sqrt{(b)^2-4(a)(c)}}{2a}$

and

$x=\frac{-b-\sqrt{(b)^2-4(a)(c)}}{2a}$

Let's identify our a, b, and c values:

a: -1

b: 1

c: 12

Plug in the values for a, b, and c into the equation. Let's do the first equation:

$x=\frac{-1+\sqrt{(1)^2-4(-1)(12)}}{2(-1)}$

Simplify everything in the radical:

$x=\frac{-1+\sqrt{49}}{-2}$

Simplify the radical:

$x=\frac{-1+7}{-2}$

Combine like terms:

$x=\frac{6}{-2}$

Simplify:

$x=-3$

This is one solution, now, let's solve for the other equation:

Since when simplified, everything is the same except the subtraction sign, we can skip the simplification again and change the sign to subtraction:

$x=\frac{-1-7}{-2}$

Combine like terms:

$x=\frac{-8}{-2}$

Simplify:

$x=4$

Your final answers are:

$x=-3$

$x=4$

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3 years ago

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Candace invests $636 in an investment that pays 7% interest compounded quarterly. What is her annual effective yield? Input answ

Damm [24]

Answer:

7.19%

Step-by-step explanation:

let i be the effective rate

$(1+\frac{.07}{4})^4=(1+i)\\.071859031$

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Find the equation of a line with the given points. 7, 3 , 5, -1

MissTica

Answer:

i think if its on a graph

Step-by-step explanation:

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3 years ago

Help me to choose the right answer

irga5000 [103]

Answer:

its B

Step-by-step explanation:

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2 years ago