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Pavel [41]
3 years ago
10

How to solve 2t + 9.4 = 39.8

Mathematics
2 answers:
Tpy6a [65]3 years ago
6 0
First subtract 9.4 on both side so you get 2t=30.4 then divide the 2 on both side to get the variable by it self and you get t=15.2
sergejj [24]3 years ago
4 0
2t+9.4=39.8
2t=39.8-9.4
2t=30.4
t=30.4/2=15.2
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2r2 + 3s3 − r2 + 4t2 − r2 if r = −2, s = −3, and t = 5
Strike441 [17]
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3 years ago
Juan decided to start saving for college. He deposited $500 into an account which earns 4% simple annual interest. At the end of
Norma-Jean [14]

Answer:

$5504

Step-by-step explanation:

Given that :

Principal amount = $500

Interest = 4% simple interest annually

Amount added at the end of each year :

First year:

Principal + (Principal * rate * time)

500 + (500 * 0.04) = 520

$520 + $250 = $770

2nd year:

770 + (770 * 0.04) = $800.80

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3rd year:

1050.8 + (1050.8 * 4) = 5254

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5 0
3 years ago
Examine the data below for a stalk of corn. Logarithmic regression Use logarithmic regression to find an equation of the form y
masya89 [10]

The value of <em>a</em> and <em>b</em> for the data values of stalk of corn using the logarithmic regression is -76.2038 and 37.6735 respectively.

<h3>What is logarithmic regression?</h3>

Logarithmic regression is a type of regression which is used to model the statement in which the growth or decay initially at rapid rate, and then slow down with respect to time.

The data of the table for the day and height of the stalk of corn is listed below.

Day (<em>x</em>)                9    12    22    40    

Height (<em>y</em>) in        5    17    45    60  

Mean of x values,

m_x=\dfrac{9+12+22+40}{4}\\m_x=17.5581

Mean of y values,

m_y=\dfrac{5+17+45+60}{4}\\m_y=31.75

For the above table, the value of correlation coefficient is 0.99133. For these values, the logarithmic regression can be given as,

y = -76.2038+37.6735\ln(x)

Compare it with the following logarithmic regression equation, we get

y = a+b\ln(x)

a=-76.2038\\b=37.6735

Hence, the value of <em>a</em> and <em>b</em> for the data values of stalk of corn using the logarithmic regression is -76.2038 and 37.6735 respectively.

Learn more about the logarithmic regression here;

brainly.com/question/25226042

5 0
2 years ago
Which question is equivalent to 5+n
Dima020 [189]

Answer:

the answer would be n+5

Step-by-step explanation:

5n is the same as saying 5 multiplied by n

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and if we used n+5 it would be 2+5=7

and if you plugin n=2 for all the equations the only correct one is N+5

7 0
3 years ago
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