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4 years ago

What is the value of x

Mathematics

1 answer:

zaharov [31]4 years ago

8 0

We use the Pythagorean theorem here, because we have the two sides and a right angle between them, so we calculate the hypotenuse like this:

x^2 = 6^2 + 8^2

x^2 = 36 + 64

x^2 = 100

x = square root of 100

x = 10

The correct answer is B.10.

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a man drives x miles the first day, y miles the second day, and z miles the third day. the averge mileage covered per day is

statuscvo [17]

The average mileage covered per day is = number of miles / number of days.

The average mileage covered per day is =(x+y+z)/3

6 0

3 years ago

Pls helpppp asap it would mean alot also its not 12

erica [24]

Answer:

16 comets

Step-by-step explanation:

This is like a simple versions of systems of equations.

You'd want to create 2 equations describing the two pieces of information they give you. First, define the variables:

# of Fantails = f

# of Comets = c

You know Gloria has 22 total, so f + c = 22

You also know there are 10 fewer f than c, so c - 10 = f

In this case, you can substitute "f" in and solve for c.

(c - 10) + c = 22

2c - 10 = 22

2c = 32

c = 16

I hoped this helped!

8 0

4 years ago

A quarter-circle with a diameter of 4 meters. What is the area?

Zarrin [17]

First, just find the area of the whole circle:

πr²
π(2)²
4π

Now, just multiply by 1/4.

4π * 1/4
π

Hope this helps!

7 0

4 years ago

Which system has no solutions?

Lapatulllka [165]

$\left\{\begin{array}{ccc}y \ \textgreater \ 6\\y \ \textless \ 2\end{array}\right\\\\\text{Look at the picture}$

3 0

4 years ago

A certain region currently has wind farms capable of generating a total of 2500 megawatts (2.5 gigawatts) of power. Complete p

marishachu [46]

Answer:

The correct answer is A. 7,665'000,000 kilowatt-hours per year and B. 766,500 households.

Step-by-step explanation:

1. Let's review the information provided to us for solving the questions:

Power capacity of the wind farms = 2,500 Megawatts or 2.5 Gigawatts

2. Let's resolve the questions a and b:

Part A

Assuming wind farms typically generate 35% of their capacity, how much energy, in kilowatt-hours, can the region's wind farms generate in one year?

2,500 * 0.35 = 875 Megawatts

875 Megawatts = 875 * 1,000 Kilowatts = 875,000 Kilowatts

Now we calculate the amount of Kilowatts per hour, per day and per year:

875.000 Kw generated by the farms means that are capable of produce 875,000 kw per hour of energy

875,000 * 24 = 21'000,000 kilowatt-hours per day

21'000,000 * 365 = 7,665'000,000 kilowatt-hours per year

Part B

Given that the average household in the region uses about 10,000 kilowatt-hours of energy each year, how many households can be powered by these wind farms?

For calculating the amount of households we divide the total amount of energy the wind farms can generate (7,665'000,000 kilowatt-hours) and we divide it by the average household consumption (10,000 kilowatt-hours)

Amount of households = 7,665'000,000/10,000 = 766,500

4 0

3 years ago