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xxTIMURxx [149]

3 years ago

11

A year has 365 days, and a day has 24 hours. If an hour has 60 minutes and a minute has 60 seconds, how many seconds are there i

n 1 year?

1 answer:

borishaifa [10]3 years ago

3 0

Answer:

<h2>hey there!</h2>

Step-by-step explanation:

hope it is correct

The number of seconds in 365 days is 31536000 seconds in a year

<h3>hope it helped and have a nice day!</h3>

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What is the vertex of (x) = –16x² + 64x + 80.

cricket20 [7]

Answer:

<h3> (2, 124)</h3>

Step-by-step explanation:

f(x) = a(x - h)² + k - the vertex form of the equation of the parabola with vertex (h, k)

$f(x) = -16x^2+ 64x + 80\\\\f(x) = -16(x^2- 4x) + 80\\\\f(x) = -16(\underline {x^2-2\cdot2x\cdot2+2^2}-2^2) + 80\\\\f(x) = -16\big[(x-2)^2-4\big] + 80\\\\f(x) = -16(x-2)^2+64 + 80\\\\\bold{f(x)=-16(x-2)^2+124\quad\implies\quad h=2\,,\quad k=124}$

<u>The vertex is </u><u>(2, 124)</u>

7 0

3 years ago

Which of the following is a linear function?

Amiraneli [1.4K]

I got y = two over three x

6 0

3 years ago

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sesenic [268]

Answer:

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Step-by-step explanation:

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8 0

3 years ago

27.) Find the sum of the length of line segments EF and CD

Lelechka [254]

Answer:

5√10

Step-by-step explanation:

The distance between two points A( $x_1,y_1$ ) and B( $x_2,y_2$ ) on the coordinate plane is given by:

$|AB|=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2 }$

From the image attached the coordinates of the points are E(-1, -1), F(8, -4), C(-7, -4) and D(-1, 2).

Hence the lengths of the line segment EF and CD are:

$|EF|=\sqrt{(8-(-1))^2+(-4-(-1))^2} =\sqrt{90}=3\sqrt{10} \\\\CD=\sqrt{(-1-(-7))^2+(-2-(-4))^2}=\sqrt{40} =2\sqrt{10} \\\\Therefore:\\\\|EF|+|CD|=3\sqrt{10} +2\sqrt{10} =5\sqrt{10}$

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3 years ago

This is the numbers 3-4

Shtirlitz [24]

Answer:

3) x= 3, -2

4) 36

Step-by-step explanation:

3) x= 3, -2

4) 36

6 0

3 years ago