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Anon25 [30]
3 years ago
8

A scientific model doesn’t need to be something physical. It can also be a mathematical __________

Mathematics
2 answers:
love history [14]3 years ago
5 0
Equation, a mathematical equation.
MAVERICK [17]3 years ago
4 0

Answer:

2+4

Step-by-step explanation:

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To gain access to his account, a customer using an automatic teller machine (ATM) must enter a four-digit code. If repetition of
VMariaS [17]
I’m not really much sure, I tried.
8 0
3 years ago
The 12th term of a sequence is 41 and the 15th term is 140. What is the nth term?
OLga [1]
An= mth term.
an=a₁+(n-1)*d

a₁₂=41
a₁₅=140

a₁₂=41
41=a₁+(12-1)*d
41=a₁+11d 
a₁+11d=41    (1)

a₁₅=140
140=a₁+(15-1)*d
140=a₁+14d 
a₁+14d=140    (2)

With the equiations (1) and (2)  build a system of equations
a₁+11d=41
a₁+14d=140

we solve it.
-(a₁+11d=41)
  a₁+14d=140
--------------------
       3d=99  ⇒d=99/3=33

a₁+11d=41
a₁+(11*33)=41
a₁+363=41
a₁=41-363=-322

an=a₁+(n-1)*d
an=-322+(n-1)*33
an=-322+33n-33
an=-355+33n

an=-355+33n

To check:
a₁₂=-355+33*12=-355+396=41
a₁₅=-355+33*15=-355+495=140.
3 0
3 years ago
Simplify the expression using properties of exponents.<br><br> 12a-9b-4<br><br> 9a2b6
Free_Kalibri [48]
Check out -m-a-t-h-w-a-y-.-c-o-m- (This helps a lot!)
5 0
3 years ago
Check all of the ordered pairs that satisfy the equation below.
stiv31 [10]

Answer:

Hey there!

y=3/4x shows that the y-value is always 3/4 of the x-value.

Thus, if x is 4, y is 3. It always fits the 4:3 ratio.

The ordered pairs that satisfy this equation are: 28:21 and 16:12

Let me know if this helps :)

6 0
3 years ago
The temperature outside Monday morning was -14. On Tuesday morning it was 4 degrees colder. Create an equation to show temperatu
Illusion [34]

Answer:

Temperature on Tuesday morning is -18^{o}.

Step-by-step explanation:

Temperature is the measure in degrees how cold or hot a substance is. The three scale of measurements are: Celsius, Fahrenheit, and Kelvin.

In the given question, temperature on Monday morning is -14 degrees. Since it was given that the temperature on Tuesday morning is 4 degrees colder than that of Monday, then;

Temperature on Tuesday = -14 + (-4)

                                          = -14 -4

                                          = -18

Therefore, the temperature on Tuesday morning is -18^{o}.

6 0
3 years ago
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