MATHEMATICS
HIGH SCHOOL

Answer:

we are given

we can expand it

now, we can FOIL it

now, we can simplify it

we know that

so, we can plug it

..............Answer

MIDDLE SCHOOL

The tour de France bicycle race is not only challenging; at 2,300 miles, it is long! In kilometers, about how long is the race?

2,300 mi = 3701.4912 km

(1 mile = 1.609 km)

(1 mile = 1.609 km)

Answer:

3,700.7 or 3700.7

Step-by-step explanation:

1km=1.609

1.609 * 2300= 3700.7

MIDDLE SCHOOL

How can the vertical number line be used to add or subtract

A vertical number line resembles a thermometer. It emphasizes that we count up in the number system. Vertical number lines are just alternative way to look at the numbers.

This is commonly used in adding or subtracting

For example: 5 – 3

5 is the start, the sign determines whether you go down or go up, the minus sign denotes down then so the last number denotes how many steps you are going down where you land is the answer. The same goes with addition but instead of down, the plus sign denotes going up.

Answer:

- noooooooooooooooooooo

MIDDLE SCHOOL

The speed of the international space station is 27,576 kilometres per hour. a) the station travels 42,600 kilometres in one orbit.

work out the full orbits the station does in an day.

b)Convert 27,576 kilometres per hour into metres per second.

(27576km/hr)(24hr/day)(orbits/42600km)=orbits/day=15.53

So the station makes 15 FULL orbits per day

(27576km/h)(1000m/km)(h/3600s)=7660m/s

So the station makes 15 FULL orbits per day

(27576km/h)(1000m/km)(h/3600s)=7660m/s

MIDDLE SCHOOL

What is the value of the function y = 4x – 19 when x = −2.3?

y =