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3 years ago

Heather drove a constant rate

Mathematics

2 answers:

mrs_skeptik [129]3 years ago

3 0

Answer:

cool

Step-by-step explanation:

bazaltina [42]3 years ago

3 0

Answer:

What?, haha... can you finish the sentence, or put a picture, cause i'm not understanding this

Step-by-step explanation:

confusion 101

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2/v + 2 = 9 solve for v

kenny6666 [7]

2/v+2=9
-2 -2
2/v=7
(2)2/v=7(2)

V=14

6 0

3 years ago

Read 2 more answers

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

4 years ago

2(3w-5y) expanded <br>please

Snezhnost [94]

<h2><u>DISTRIBUTIVE PROPERTY</u></h2>

The distributive property indicates that multiplying a number by the sum of two addends is equal to multiplying each addend individually by the number and then adding the products together.

In general terms:

‎ ‏‏‎

<u>In this exercise</u>:

Let's apply the distributive property:

$\mathsf{2(3w - 5y)}$

$= \mathsf{2(3w) - 2(5y)}$

$= \boxed{\mathsf{6w - 10y}}$

‎ ‏‏‎

<h3><u>Answer</u>: 6w - 10y</h3>

‎ ‏‏‎

7 0

3 years ago

Suppose that 9 is a factor of a number. Which statement must be true?

Tresset [83]

Since 9 is a factor of an unknown number, that means that that number has to be a multiple of 9. If 9 is the factor of something then that something HAS to be a multiple of 9.

4 0

3 years ago

The price of an item has been reduced by 30%. The original price was $30. What is the price of the item now ?

Anit [1.1K]

Answer:

Step-by-step explanation:

30 multiply by 30 and divide by 100

6 0

4 years ago