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2 years ago

A horse can run at a top speed of 18 miles

Mathematics

1 answer:

Novay_Z [31]2 years ago

8 0

Answer:

18 miles per hour

Step-by-step explanation:

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The arch of a bridge forms the upper half of an ellipse. The arch is 6 meters above the 20-meter-wide river. Write an equation f

aksik [14]

Answer:

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

Step-by-step explanation:

Required

The equation of the ellipse

This is calculated as:

$\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$

Where:

$b =6$ ---- height

$a = 0.5 * 20 =10$ --- width

So:

$\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$

$\frac{x^2}{6^2} + \frac{y^2}{10^2} = 1$

$\frac{x^2}{36} + \frac{y^2}{100} = 1$

3 0

2 years ago

Im having trouble figuring out what this question means |7| + -4=?

OverLord2011 [107]

Answer:

Step-by-step explanation:

It means absolute value 7 plus -4

This means that if it were a -7, it would become positive because it is under absolute value bars...since it is positive nothing changes

7-4= 3

7 0

2 years ago

What is 0.5 repeating as a fraction in simplest form

Solnce55 [7]

Answer:

5/9

Step-by-step explanation:

Start be letting x = 0.555...

Our original equation is:

x = 0.555...

There is only one digit repeating, the 5, so we multiply both sides of that equation by 10 and write it above the original equation.

10x = 5.555...

x = 0.555...

Now we subtract the second equation from the first equation as written above.

9x = 5

Divide both sides by 9.

x = 5/9

0.555... = 5/9

6 0

2 years ago

10=1+w solve for w please help me

ivann1987 [24]

Answer:

W=9

Step-by-step explanation:

=> 10-1=W (Transpose 1 of R.H.S to L.H.S)

=> 9=W

Hope this helps you.

5 0

2 years ago

Read 2 more answers

Set questions need immediate help

kompoz [17]

60-35%=25%
50-35%=15%
25%=Math
35%=(mns)
15%=science

4 0

1 year ago