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3 years ago

PLEASE HELP (IM GIVING 100 POINTS)

Mathematics

1 answer:

Natasha2012 [34]3 years ago

6 0

Answer:

Step-by-step explanation:

area of triangle = 1/2*base*height

small triangle = 1/2*4*3 = 6

Big triangle = 1/2*8*6= 24

24/6=4

the big triangle is 4 times the size of the big triangle. so the small triangle would be 1/4 the size. hence D1/4(xyz) answer is A

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which represents the solution(s) of the system of equations, y=x^2-2x-15 and y=8x-40? determine the solution set algebraically

Harrizon [31]

y=x^2-2x-15 (1) y=8x-40 (2)

8x-40=x^2-2x-15
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3 years ago

Eight over twelve equals x over thirty solve for x

xenn [34]

Answer:

8x12x30=2880

Step-by-step explanation:

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3 years ago

The difference of a number mand thirty is ten. How do you write this as a equation?

777dan777 [17]

Answer: x - 30 = 10

Step-by-step explanation:

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3 years ago

If 3f(x) - f(1/x) = x^2 , what is the value of f(1/2)? and it's from R-{0} to R obviously.

GarryVolchara [31]

Answer:

0.59375‬

Step-by-step explanation:

3f(x) - f(1/x) = x^2

x = 2: 3f(2) - f(1/2) = 2^2

x = 1/2: 3f(1/2) - f(2) = (1/2)^2

Let a = f(1/2) and b = f(2):

3b - a = 4; 3a - b = 1/4

3b - 4 = a

3(3b-4) - b = 1/4

8b = 12 + 1/4

b = 1.53125‬

3 * 1.53125‬ - 4 = a

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3 years ago

A rhino can run at speeds of about 28 miles per hour. What is that speed in

swat32

Given:

A rhino runs at a speed of about 28 miles per hour.

We need to determine the speed in feet per second.

Converting miles to feet:

The miles can be converted to feet by multiplying 5280 with 28 miles per hour.

Thus, we have;

$28\times 5280=147840$

Thus, the speed of the rhino in feet per hour is 147840

Converting hours to seconds:

The hours can be converted into seconds by dividing 147840 by 3600 (Because an hour has 60 seconds in a minute and 60 minutes in an hour)

Thus, we get;

$Speed=\frac{147840}{3600}$

$Speed = 41.066667$

Rounding off to the nearest whole number, we get;

$Speed =41$

Therefore, the speed of the rhino is 41 feet per second.

Hence, Option B is the correct answer.

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3 years ago