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3 years ago

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Mathematics

2 answers:

Oduvanchick [21]3 years ago

7 0

Answer:Coal, nuclear and natural gas power plants all transform thermal energy into electricity.

True

False

Step-by-step explanation:

steposvetlana [31]3 years ago

4 0

Uhmm very interesting :)

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Alyssa plans to borrow $3,180 at 6.5% for 3.5 years . Find the amount of simple interest she should expect to pay.

irga5000 [103]

Answer:

784.16

Step-by-step explanation:

use the formula for simple interest =

P(1+r)^t

3180(1.065)^3.5 - 3180

3 0

2 years ago

Joseph is a real estate agent who sold a home for $360,000. If his commission was $27,000, what was his exact rate of commission

Pavel [41]

None of these choices are correct.

3 0

3 years ago

Read 2 more answers

Urgent!!!!?

ExtremeBDS [4]

Answer:

C) 6 feet

Step-by-step explanation:

The diagram is shown in the attachment.

Using the Pythagoras Theorem,

$x^2=4^2+4^2$

$x^2=16+16$

$x^2=32$

We take positive square root to obtain

$x=\sqrt{32}$

$x=4\sqrt{2}$

x=5.66ft

Rounding to the nearest feet we have x=6ft

4 0

3 years ago

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;

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

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

3 0

3 years ago

On a piece of paper, graph this system of inequalities. Then determine which region contains the solution to the system.

Mashutka [201]

we have

$y\leq \frac{1}{4}x+3$ ----> inequality 1

The solution of the inequality 1 is the shaded area below the solid red line

The solution is the region D and region C

$y\geq-x+5$ -----> inequality 2

The solution of the inequality 2 is the shaded area above the solid blue line

The solution is the region B and region C

The solution of the system is the common area

The solution is the region C

see the attached figure

therefore

the answer is the option C

Region C

3 0

2 years ago

Read 2 more answers