3 years ago

Y2+106=10y solve the quadratic equation by completing the square

Mathematics

1 answer:

Contact [7]3 years ago

6 0

Answer:

(y-5) exponent 2 +81

Ste(p-by-step explanation:

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2 years ago

Write the equation of the line that has a slope of 2/3 and passes through (0,-7).

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3 years ago

Mrs. Juergen's class is building a model city from craft sticks. each house requires 267 sticks. the class will build 93 houses.

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2 years ago

A ball is thrown directly up in the air from a height of 5 feet with an initial velocity of 60 ft/s. Ignoring air resistance, ho

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3.8 seconds

Step-by-step explanation:

Given equation

$h= -16t^2 + 60t + 5$

When the ball hits the ground then height is 0

So we replace h with 0 and solve for t

$0= -16t^2 + 60t + 5$

a= -16 , b= 60 and c= 5

Apply quadratic formula to solve for t

$t=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

= $\frac{-60+\sqrt{60^2-4\left(-16\right)\cdot \:5}}{2\left(-16\right)}[/tex[tex]=\frac{-60+-\sqrt{3920}}{-32}$

$=\frac{-60+-28\sqrt{5}}{-32}$

$=\frac{4(-15+-7\sqrt{5})}{-32}$

$=\frac{(-15+-7\sqrt{5})}{-8}$

Now make two fractions and solve for x

t= $-\frac{7\sqrt{5}-15}{8}$ =-0.0815

t= $\frac{7\sqrt{5}+15}{8}$ =3.83

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2 years ago

the frankiln middle school jazz band plans to have a car wash to raise $468.75 for a new sound system. in the past, they washed

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Answer:

$3.75

Step-by-step explanation:

468.75/125=$3.75 per car wash

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