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VashaNatasha [74]
3 years ago
7

Plz help me with this!! Thank you so much!!

Mathematics
2 answers:
Kazeer [188]3 years ago
3 0
30 divided by 5 is 6
igomit [66]3 years ago
3 0

Answer: 5 is correct,

6: the answer is 6 and you subtract by doing 30-5, 25 - 5, etc

7: answer is 9, count backwards from 9 so 45, 36, 27, 18, 9

8: answer is 7 and do the same thing as you did for number 7

Step-by-step explanation:

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Element X decays radioactively with a half life of 6 minutes. If there are 140 grams of
Yuki888 [10]

Answer:

28.6

Step-by-step explanation:

3 0
3 years ago
The total charge that has entered a circuit element is q(t) = 6 (1 - e-7t) when t ≥ 0 and q(t) = 0 when t < 0. The current in
Bess [88]

Answer:

A=42, B=-7

Step-by-step explanation:

The current function of time is defined as follows:

I(t)=\frac{dq(t)}{dt}

where q(t) is the charge function.

For the given charge function of time q(t)=6\left( 1-e^{-7t}\right) we have the following current function:

I(t)=\frac{d}{dt} \left(6\left( 1-e^{-7t}\right)\right)=42e^{-7t}

In the problem it is proposed that I(t)=Be^{-At}.

Examining the expression of I(t) we obtained by deriving q(t) with the expression proposed by the problem and comparing term by term:

I(t)=Be^{-At}=42e^{-7t}

We conclude that A=-7 and B=42.

4 0
3 years ago
Broccoli costs $1.50 per pound at a grocery store.how much money does 64 ounces of broccoli cost,before tax.
Pani-rosa [81]
The answer for that question is 6$

8 0
4 years ago
Read 2 more answers
Select 2 points PLEASE ANSWER THANKS YOU SO MUCH
Xelga [282]

Answer:

1) The graph is as shown at the attached figure.

2) The line passes with (1,-3) and (2,-2)

Step-by-step explanation:

graph the line that passes with (3,-1) and has a y-intercept of -4

y-intercept is the value of y when x = 0

So, the line passes with (0 , -4)

The general form of the line  y = mx + c

Where m is the slope and c is y-intercept

given y-intercept = -4 ⇒ ∴ c = -4

using the other point to find m

So, when x = 3 , y = -1

So,  -1 = 3m - 4

Solve for m

3m = -1 + 4 = 3

m= 3/3 = 1

So, the equation of the line ⇒ <u>y = x - 4</u>

See the attached figure which represents the graph of the line

As shown at the graph the line passes through the points <u>(1,-3) and (2,-2)</u>

7 0
3 years ago
Mom and Dad had four daughters. Each daughter had a brother. How many people are in the family including Mom and Dad?
Natalija [7]

Answer: 7 people

Step-by-step explanation: The answer is 7. 1 mother, 1 father, 4 daughters, but the daughters are sisters and they all have the same brother. If they ha 4 sons it would be 4 brothers each. 4+1+1+1=7.

6 0
3 years ago
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