MATHEMATICS HIGH SCHOOL

Irwin rode his bicycle from one end of a trail to another and back at a speed of 20 miles per hour. If the trail is 4 miles long, for how many hours was Irwin riding?0.2 hours
0.4 hours
2.5 hours
5.0 hours

Answers

Answer 1
Answer:

Answer:

C. 2.5

Step-by-step explanation:

Hope this helps and please mark Brainliset!
Answer 2
Answer:

Answer:

i would say 0.4

Step-by-step explanation:

i really really really hope this is right

if it's not I'm going to be very sad

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What is 15 degrees less than 6 degrees celcius
The function p(x) = –2(x – 9)2 + 100 is used to determine the profit on T-shirts sold for x dollars. What would the profit from sales be if the price of the T-shirts were $15 apiece?
Hi can someone help me with this
Suppose that you want to model the height of a rider on a Ferris wheel as a function of time. The amplitude of the function you use as a model should be equal to which of the following?A) the area of the Ferris wheel B) the circumference of the Ferris wheel C) the diameter of the Ferris wheel D) the radius of the Ferris wheel

Johnny opened a savings account 3 years ago. The account earns 7% interest, compounded continuously. If the current balance is $200.00, how much did he deposit initially? Round your answer to the nearest cent.

Answers

Answer: the initial deposit is $162.1

Step-by-step explanation:

The formula for continuously compounded interest is

A = P x e (r x t)

Where

A represents the future value of the investment after t years.

P represents the present value or initial amount invested

r represents the interest rate

t represents the time in years for which the investment was made.

e is the mathematical constant approximated as 2.7183.

From the information given,

r = 7% = 7/100 = 0.07

t = 3 years

A= $200

Therefore,

200 = P x 2.7183^(0.07 x 3)

200 = P x 1.234

P = 200/1.234

P = $162.1 to the nearest cent

What is the domain of the relation {(2, 8), (0, 8), (–1, 5), (–1, 3), (–2, 3)}?

Answers

Hello,

dom f={-2,-1,0,2}
Range={3,5,8}

Which is equivalent to (4xy – 3z)2, and what type of special product is it?16x2y2 + 9z2, the difference of squares
16x2y2 + 9z2, a perfect square trinomial
16x2y2 – 24xyz + 9z2, the difference of squares
16x2y2 – 24xyz + 9z2, a perfect square trinomial

Answers

Answer:

16x^2y^2-24xyz +9z^2

Step-by-step explanation:

(4xy - 3z)^2

Given expression has exponent 2, so we multiply it twice

(4xy - 3z)(4xy-3z)

Apply FOIL method to multiply the parenthesis

multiply 4xy inside the second parenthesis

and multiply -3z inside the second parenthesis

4xy(4xy-3z)=16x^2y^2-12xyz

-3z(4xy-3z)=-12xyz+9z^2

16x^2y^2-12xyz-12xyz+9z^2

Combine like terms

16x^2y^2-24xyz +9z^2
Hello,

Answer D
16x²y²-24xyz+9z² a perfect square trinomial  which
le square of the difference of 3z from 4xy.

What's the answer for the value of each 5 in 15,573? a) 500 b) 50 c) 5,000 d) 5

Answers

The value of each 5 in the number 15,573 is:

b) 50

What is the area of the room in this diagram? 12 feet length 13 feet wide

Answers

To find the area of this you have to do 12 times 13 and that would give you 156 feet squared
156 is the answer when you need to find area you always do this l×w that means length times width so basically the two numbers multiplied by each other. Length times width always always gives area.

Find the slope of the line whose equation is 4x - 6y = 8.
a. 2/3
b. -2/3 3/2

Answers

 To find the y-intercept, you have to let X = 0... 

Therefore you get 4(0)-6y=12 
-6y=12 
y = -2 

To get the slope, you have to rearrange the equation into y = mx + c form. 
Therefore. -6y = -4x + 12 
You need a single y, so divide through by -6. 
y = -4x/-6 +12/-6 

Your slope is the number in front of the x variable. I.e -4/-6 
Simplify it to, 2/3.
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