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3 years ago

Help! 30 POINTS!

Mathematics

1 answer:

nordsb [41]3 years ago

6 0

V>-29/25

solve for v, isolate then solve

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What is the area of the circle? Use 3. 14 as an estimate for pi.

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153.86m^2

Step-by-step explanation:

diameter=14

radius=14/2=7

area of circle=pi×r^2

"" =3.14×7^2

=3.14×7×7

=153.86m^2

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3 years ago

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Step-by-step explanation:

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Answer:

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3 years ago

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Mademuasel [1]

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3 years ago

Please help me solve these are quadratic equations: I

julia-pushkina [17]

Answer:

$\boxed {\boxed {\sf a= 3, b=7, c=2}}$

$\boxed {\boxed {\sf Y-intercept = c }}$

$\boxed {\boxed {\sf Minimum}}$

Step-by-step explanation:

a. a, b, c

Quadratic equations in standard form are written as:

$f(x)= ax^2+bx+c$

The exponents are listed from greatest to least. The quadratic is already in this form, so match up the variables and values in the equation.

$f(x)= 3x^2+7x+2$

$a=3 \\b=7 \\c=2$

b. Y-intercept

The y-intercept for a quadratic is c.

You can also substitute 0 in for x, because the y-intercept occurs when the quadratic crosses the y-axis (at x=0).

$f(0)= 3(0)^2+7(0)+2$

$f(0)=3(0)+7(0)+2\\f(0)= 0+0+2\\f(0)=2$

We know that c=2, so the y-intercept is c.

c. Maximum/minimum

The entire quadratic is positive, so the quadratic opens up and has a minimum.

8 0

3 years ago