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Olin [163]
3 years ago
12

PLEASE HELP ME!!!!! Thank You

Mathematics
1 answer:
IRINA_888 [86]3 years ago
8 0
An exponential regression equation is in the form  y=a(b)^x.  When you turn on your stat plot in your calculator and then enter those values into L1 for x's and L2 for y's, your calculator uses those values as coordinates to write an equation of best fit.  The stat button is used for this.  Arrow over to Calc and press enter and it will give you the equation of best fit for these data.  Our equation is  y=11.55(1.85)^x.  The coefficient of determination is .98 so it's a really close fit. 
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Evaluate the expression.
Bezzdna [24]

Answer:

cos¯¹(root 37÷37)= 80.53

80.53*2=161.07

sin(161.07)=0.32

4 0
3 years ago
Samantha soends 45 minutes at the gym for 6 days a week. how many hours does she spend at the gym
Alexxx [7]

45 minutes * 6 days = 270 minutes at the gum

but we need to change minutes to hours

1 hours = 60 minutes

270 minutes * 1 hr/60 minutes =

270/60 hours

divide top and bottom by 10

27/6

divide top and bottom by 3

9/2

4.5 hours



7 0
3 years ago
The last term of an arithmetic sequence is 14 and the ninth term is -1. Find the first four
Olegator [25]

Answer:

13

Step-by-step explanation:

where n is the number of terms, a1 is the first term and an is the last term. The sum of the first n terms of an arithmetic sequence is called an arithmetic series . Example 1: Find the sum of the first 20 terms of the arithmetic series if a1=5 and a20=62 .An arithmetic sequence is a sequence where the difference between any two consecutive terms is a constant. ... As with any recursive formula, the initial term of the sequence must be given. An explicit formula for an arithmetic sequence with common difference d is given by an=a1+d(n−1) a n = a 1 + d ( n − 1 ) .

8 0
3 years ago
Simplify y2+4y–16y+3y2.
nadya68 [22]

Answer:

4y^2-12y

Step-by-step explanation:

y^2+4y-16y+3y^2

=y^2+3y^2+4y-16y

=4y^2+4y-16y

=4y^2-12y

6 0
3 years ago
10 shared between 5 students equals how many each
masha68 [24]
10 separated into 5 groups is 10/5
5 goes into 10 2 times.
10/5=2
5 0
3 years ago
Read 2 more answers
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