Business Email The average number of email messages sent and received per corporate user per day in year t between 2011 (t = 1) and 2015 (t = 5) is projected to be f(t) = 3t + 69 (1 ≤ t ≤ 5). The average number of spam emails sent per corporate user per day for the period under consideration is projected to be g(t) = −0.2t + 13.5 (1 ≤ t ≤ 5). (a) Find a function, h, giving the projected average number of legitimate (non spam) emails sent and received per corporate user per day in year t. Hint: h(t) = f(t) − g(t).

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

30.5*10=350$

you have to multiply the number without the decimal point then add it later but if its tenn u must move the place value of the decimal point 1 to the right.

you are playing an adventure game on your computer. you come across a troll who won't let you pass and there is no other way to get to the other side of the river except over the bridge he is guarding.

the troll is a nerd. he takes great delight in watching people struggle with his problems. very few get them. he only gives you one chance and then he changes the puzzle. you have to solve this one.

before you are four blocks. they are numbered 11,6, -7,21.

he tells that the answer he wants is minus and between -1 and - 2. you can use +, -, ×, ÷   ( and ) as many times as you like or no times at all. you don't like the way he's looking at you, but you need to cross the bridge. what do you do?