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3 years ago

Helppppppppppppppppppppppp

Mathematics

2 answers:

ss7ja [257]3 years ago

3 0

The answer is 1 11/15! Hope this helps!

Novosadov [1.4K]3 years ago

3 0

1 1/15 is the anwser

first we put in improper fraction 3 2/5 its 17/5 for 1 2/3 is 5/3

first find the common denominator which is 15 so like this:

3 6 9 12 15

5 10 15

the common denominator is 15 now we have to multiply the numerator by how many time we did to the bottom so now are new number are

51/15 -20/15

=31 15

now make it to a proper fraction and 1 1/15 is the anwser

have a good day have any question just ask in the comments also look at this is would help also if you have question please ask away

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On a map, the scale shown is 1 inch: 20 miles. If a city is 900 square miles, what is the area of the city on the map?

WITCHER [35]

Answer:

2.25 square inches

Step-by-step explanation:

we know that

The scale is $1\ inch: 20\ miles$

That means

1 inch on a map represent 20 miles in the city

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2 years ago

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How many solutions exist for the given equation?

olya-2409 [2.1K]

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3 years ago

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Q1: Identify the graph of the equation and write an equation of the translated or rotated graph in general form.

marin [14]

Answer:

C. hyperbola; $9x^2-25y^2-250y-850=0$

Step-by-step explanation:

The given conic has equation:

$9x^2-25y^2=225$

Divide through by 225.

$\frac{9x^2}{225}-\frac{25y^2}{225}=\frac{225}{225}$

$\frac{x^2}{25}-\frac{y^2}{9}=1$

This is a hyperbola centered at the origin.

The hyperbola has been translated from the origin to (0,5).

The translated hyperbola will have equation;

$\frac{(x-0)^2}{25}-\frac{(y-5)^2}{9}=1$

Multiply through by 225.

$9(x-0)^2-25(y-5)^2=225$

Expand

$9x^2-25(y^2-10y+25)=225$

$9x^2-25y^2+250y-625=225$

Rewrite in general form;

$9x^2-25y^2+250y-625-225=0$

$9x^2-25y^2+250y-850=0$

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3 years ago