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3 years ago

I need help with this thank you

Mathematics

1 answer:

Svetach [21]3 years ago

7 0

Answer:A

Step-by-step explanation:You know that t is unknown, so you put that at the left of your equation since that is what you are trying to find out. You know that d is the number of ours and that Toshma is making 15 dollars per hour so you can put 15d and since she already earned 35 dollars for her birthday money, you can just add 35 dollars to the right side of the equation

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Suppose Tommy walks from his home at (0, 0) to the mall at (0, 7), and then walks to a movie theater at (5, 7). After leaving th

BaLLatris [955]

For this case, what we must do is find the distance between each ordered pair.
For this, we use the formula of distance between points.
We have then:
$d = \sqrt{(x2-x1)^2+(y2-y1)^2}$

For (0, 0) and (0, 7):
$d1=\sqrt{(0-0)^2+(7-0)^2}$
$d1=\sqrt{(0)^2+(7)^2}$
$d1=\sqrt{0+49}$
$d1=\sqrt{49}$
$d1=7$

For (0, 7) and (5, 7):
$d2=\sqrt{(5-0)^2+(7-7)^2}$
$d2=\sqrt{(5)^2+(0)^2}$
$d2=\sqrt{25+0}$
$d2=\sqrt{25}$
$d2=5$

For (5, 7) and (5, 0):
$d3=\sqrt{(5-5)^2+(7-0)^2}$
$d3=\sqrt{(0)^2+(7)^2}$
$d3=\sqrt{0+49}$
$d3=\sqrt{49}$
$d3=7$

before returning home the total distance is:
$d1 + d2 + d3 = 7 + 5 + 7

d1 + d2 + d3 = 19$

Answer:
before returning home Tommy walks about 19 blocks

5 0

3 years ago

Find the number of possible 5 card hands that contain the cards specified the cards are taken from a standard 52 card deck

Zarrin [17]

Answer:

Step-by-step explanation:

Find the number of possible 5-card hands that contain the cards specified. The cards are taken from a standard 52-card deck.

5 red cards.

Ans: 26C5 = 26!/[21!*5!] = 65780

--------------------------------------------

4 spades and 1 card that is not a spade.

Ans: [13C4*39C1] = 27885

--------------------------------------------

3 face cards (kings, queens, or jacks) and 2 cards that are not face cards.

Ans: 12C3*40C2 = 171,600

============================

5 0

3 years ago

Find the derivative of f(x) = -9/x at x = 6

Svet_ta [14]

F(x)=-9/x which is equal to:

f(x)=-9x^(-1) So the power rule for differentiation is used...

Power rule: f(x)=x^e, df/dx=ex^(e-1) so:

df/dx=-9(-1)x^(-1-1)

df/dx=9x^(-2) or if you prefer...

df/dx=9/x^2

df/dx(6)=9/36=1/4

3 0

4 years ago

Answer this math question for 10 points

MatroZZZ [7]

Which question and if you have the name of the assignment or it has a copy right at the bottom you can most likely find it online hope that helps

6 0

3 years ago

Alana ate breakfast at a restaurant. The bill came to $79.75. If she left 20% tip, how much was the tip?

Lana71 [14]

$79.75*0.2= 15.95
$79.75-15.95= $63.80
63.80+15.95= $79.75

Answer= $15.95

3 0

3 years ago