2 years ago

To write the equation of a line you need to know what 2 things

Mathematics

1 answer:

borishaifa [10]2 years ago

4 0

You need to know the slope and the y intercept

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Your class earned $110.00 Saturday afternoon by washing cars to raise money for a class trip. This is 14 of the money needed for

I am Lyosha [343]

Answer

D. 440

Step-by-step explanation:

you had me confused so I had to go in my mathmetics book it was 1/4 not 14 thats what had me confused

4 0

3 years ago

It is 2.3 km from Salma's house to the nearest mailbox. How far is it in meters?

Ivenika [448]

Answer:

2.3km in meters is 2300 Meters

Step-by-step explanation:

Multiply the length value by 1000

7 0

3 years ago

In the formula A(t) = A0ekt, A(t) is the amount of radioactive material remaining from an initial amount A0 at a given time t an

Alenkasestr [34]

Answer: 693 years

Step-by-step explanation:

Expression for rate law for first order kinetics is given by:

$A(t) =A_0e^{kt}$

k = rate constant

t = time taken for decomposition = 1

$A_0$ = Initial amount of the reactant

$A_t$ = amount of the reactant left = $A_0-\frac{0.1}{100}\times A_0=0.999A_0$

$0.999A_0=A_0e^{k\times 1}$

$0.999=e^k$

$k=-0.001year^{-1}$

for half life : $t=t_\frac{1}{2}$

$A_t=\frac{1}{2}A_o$

Putting in the values , we get

$\frac{1}{2}A_0=A_0e^{-0.001\times t_\frac{1}{2}$

$t_\frac{1}{2}=693 years$

Thus half life of this isotope, to the nearest year is 693.

8 0

3 years ago

evelyn drinks 8 glasses of water a day,which is56 glasses a week. How many glasses of water does she drink

vlada-n [284]

1 year=52 weeks

So just multiply it by 56

52*56= 2912 glasses per year

6 0

3 years ago

PLEASE PLEASE HELP!!!!

kow [346]

Answer:

Step-by-step explanation:

8 0

2 years ago