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4 years ago

What's the answer to number two

Mathematics

1 answer:

Lubov Fominskaja [6]4 years ago

5 0

You have to show more of the paper so i can calculate it. Sorry

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A car travels 65 km in 1 hour. what is its average speed in meters per second?

deff fn [24]

<span>Its speed is 18.05 m/s</span>

7 0

4 years ago

Simplify (2x + y)(x - 2y) - (x + 2y)(2x - y) as much as possible.

snow_tiger [21]

Answer:

-6xy

Step-by-step explanation:

(2x-y)x(x-2y)-(x+2y)X(2x-y)

remove the parentheses

2x^2-4xy+xy-2y^2-(2x^2-xy+4xy-2y^2)

collect terms

2x^2-4xy+xy-2y^2-(2x^2+3xy-2y^2)

remove the parentheses

2x^2-4xy+xy-2y^2-2x^2-3xy+2y^2

remove the opposites, collect the terms to get -6xy

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3 years ago

The product of two consecutive even numbers is 224. What are these two numbers?

Stells [14]

Answer:

14 and 16

Step-by-step explanation:

They are the ONLY consecutive even numbers

And also

x and (x+2)

x(x+2)=224 ( product of a number and the consecutive of that number)

x ²+ 2x-224=0

(x+16)(x-14) =0

x=-16 or 14

In this case 14 and (14+2) 14 and 16

The integers are either 14 and 16 or -14 and -16.

4 0

3 years ago

2. Triangle ABC is similar to triangle PQR. Which statement is not always true?

PilotLPTM [1.2K]

The answer would be c i think

6 0

3 years ago

Tyler is building a fish tank in the shape of a sphere that has a diameter of 14 inches. Based on Tyler's research, it is recomm

Charra [1.4K]

Answer:

Tyler should buy 2 goldfishes for his fish tank,

Step-by-step explanation:

First let's find the volume of the sphere, using the following equation:

$Volume = (4/3) * \pi * radius^3$

The radius is half the diameter, so the radius is 14/2 = 7 inches

Now, finding the volume, we have:

$Volume = (4/3) * \pi * 7^3$

$Volume = 1436.75\ in^3$

Now, we know that we need to have 1 goldfish for every 693 in3 of water, so to find the number of goldfishes, we just need to divide the volume of the sphere by 693 (and round down the result if needed):

$Number\ of\ goldfishes = 1436.75 / 693 = 2.07 = 2\ goldfishes$

Tyler should buy 2 goldfishes for his fish tank,

3 0

3 years ago

Read 2 more answers