1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fed [463]
3 years ago
10

An element with mass 780 grams decays by 17.1% per minute. How much of the element is remaining after 19 minutes to the nearest

10th of a gram
Mathematics
1 answer:
Anit [1.1K]3 years ago
6 0
Step 1
Formulate a recursive sequence modeling the number of grams after n  minutes.
we have that
100%-17.1%-------------- > 82.9%------------> 0.829

a(n) = 780*[0.829<span>^n]
</span>
for n=19 minutes
a(19)=780*[0.829^(19)]=22.1121 g---------------> 22.1 g

the answer is 22.1 g
You might be interested in
Given that tan theta = -4/7, and 270° &lt; theta &lt; 360°, what is the exact value of sec theta​
aleksley [76]

Answer:

sec Θ = \frac{\sqrt{65} }{7}

Step-by-step explanation:

Using the trigonometric identity

sec²Θ = tan²Θ + 1

Since 270° < Θ < 360° ← that is fourth quadrant, then

sec Θ > 0, thus

sec²Θ = (- \frac{4}{7})² + 1 = \frac{16}{49} + 1 = \frac{65}{49}, then

sec Θ = \sqrt{\frac{65}{49} } = \frac{\sqrt{65} }{7}

6 0
3 years ago
What is the simplified value of the expression below? 4.2+0.6/3-5(0.9-0.5) will mark the brainliest
makkiz [27]

Hi!

4.2+0.6/3-5(0.9-0.5) = 4.2 + 0.2 - 5*0.4 = 4.4 - 2 = 2.4

Hope this helps!

4 0
3 years ago
Read 2 more answers
Trimble Graphic Design receives $2,250 from a client billed in a previous month for services provided. Which of the following ge
krok68 [10]

Answer:

Dr   Cash/Bank $2,250

Cr   Account Receivable $2,250

Step-by-step explanation:

At the time the transaction was carried out, that is the previous month, the accounting entries was a debit to account receivable (client account) and a credit to sales account. which is as shown below:

<em>Dr   Account Receivable $2,250</em>

<em>Cr   Sales  $2,250</em>

<em>Being sales on credit to a client.</em>

The client account will have an outstanding debit balance of <em>$2,250 </em>until payment is made. once payment is made, the following entries will be made to ensure no outstanding balance in the client account.

Dr   Cash/Bank $2,250

Cr   Account Receivable $2,250.

7 0
3 years ago
What is 0.91 meter equal to 1 what?
telo118 [61]

Answer:2.986

Step-by-step explanation:

0.91 meter = 2.986 feet

Formula: multiply the value in meters by the conversion factor '3.2808398950132'.

So, 0.91 meter = 0.91 × 3.2808398950132 = 2.986 feet.

0.91 METER TO THE NEAREST FRACTIONS OR INTEGER OF FOOT:

3 feet (e* = 0.48%)

The latest values above are alternative ones for 0.91 meter. They are represented in the form of usable fractions (1

2

, 1

4

, 3

4

etc.) or of an integer. We show these results, when it is possible to convert them to a fraction or integer with a small error e* which means the maximum rounding error (positive or negative).

© coolconversion.com

Full Lenght/Height/Distance Converter

 

To calculate a meter value to the corresponding value in feet, just multiply the quantity in meter by 3.2808398950131 (the conversion factor).

Here is the formula:

Value in feet = value in meter × 3.2808398950131

Suppose you want to convert 0.91 meter into feet. Using the conversion formula above, you will get:

Value in feet = 0.91 × 3.2808398950131 = 2.986 feet

3 0
3 years ago
What is the slope intercept form of the equation of the line 5x-6y=36
irina1246 [14]
It's an easy problems. what equations are you trying to find?
3 0
3 years ago
Other questions:
  • There are 800 students at Prestfield School. 45% of these 800 students are girls
    14·1 answer
  • Find -3A+6B A=[-3 5 -6] [9 -5 3] B=[-2 6 7] [2 -1 -6]
    5·1 answer
  • Changing Throwback Thursday to Monday and I need a new name.
    12·1 answer
  • Classify the following triangle. Check all that apply.
    9·2 answers
  • 190 muitiplied by 186​
    5·2 answers
  • (44/5 ÷ 3 5/7) – (11/3)2
    7·2 answers
  • Ba
    5·1 answer
  • 1.
    7·1 answer
  • Determine the unknown side lengths.<br><br> X= ?<br><br> Y= ?
    9·2 answers
  • 7. A square pyramid has a height that is 8 centimeters
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!