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Zina [86]
3 years ago
7

Work out 30 – 3 + 7 x 2

Mathematics
2 answers:
strojnjashka [21]3 years ago
7 0
The correct answer is 41
zhenek [66]3 years ago
5 0
30 - 3 + 7 x 2

30 - 3 + 14

27 + 14

41
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- 4/9 times - 5/8 in fractions.
omeli [17]

Answer:

5/8 x 4/9 = 20/72 as simplified as 5/18 in fraction form. 5/8 x 4/9 = 0.2778 in decimal form.

Step-by-step explanation:

5 0
3 years ago
Correct 33.246 to 2 significant figures​
WITCHER [35]
Correct 33.246 to 2 significant figures:

the answer is 33 :)
4 0
4 years ago
Need some help on this question please provide evidence on how you came up with the answer aswell.
nika2105 [10]

Answer:

22

Step-by-step explanation:

the first three set of dots are 11

if you combine them

they'll look like the last one

11 + 11

=22

5 0
3 years ago
Read 2 more answers
Complete the following table for residuals for the exponential function: f(x) = 49.3(1.47)
agasfer [191]

Answer:

Predicted values:

\hat y_1 = 49.3 (1.47)^1 =72.471

\hat y_2 = 49.3 (1.47)^2 =106.5324

\hat y_3 = 49.3 (1.47)^3 =156.6026

\hat y_4 = 49.3 (1.47)^4 =230.2058

\hat y_5 = 49.3 (1.47)^5 =338.4025

\hat y_6 = 49.3 (1.47)^6 =497.4517

\hat y_7 = 49.3 (1.47)^7 =731.254

\hat y_8 = 49.3 (1.47)^8 =1074.943

Residuals:

e_1 = 65-72.471=-7.471

e_2 = 90-106.5324=-16.5324

e_3 = 162-156.6026 = 5.3974

e_4 = 224-230.2058 = -6.2058

e_5 = 337-338.4025 = -1.4025

e_6 = 466-497.4617 = -31.4517

e_7 = 780-731.254 = 48.7459

e_8 = 1087-1074.493 = 12.0566

Step-by-step explanation:

For this case we assume the following exponential function:

\hat y_i = 49.3 (1.47)^x

Where x represent the hours and y the predicted values for each hour. We can find the estimated values like this:

\hat y_1 = 49.3 (1.47)^1 =72.471

\hat y_2 = 49.3 (1.47)^2 =106.5324

\hat y_3 = 49.3 (1.47)^3 =156.6026

\hat y_4 = 49.3 (1.47)^4 =230.2058

\hat y_5 = 49.3 (1.47)^5 =338.4025

\hat y_6 = 49.3 (1.47)^6 =497.4517

\hat y_7 = 49.3 (1.47)^7 =731.254

\hat y_8 = 49.3 (1.47)^8 =1074.943

Now we can find the residuals with this formula:

e_i = Y_i -\hat y_i

And replacing we got:

e_1 = 65-72.471=-7.471

e_2 = 90-106.5324=-16.5324

e_3 = 162-156.6026 = 5.3974

e_4 = 224-230.2058 = -6.2058

e_5 = 337-338.4025 = -1.4025

e_6 = 466-497.4617 = -31.4517

e_7 = 780-731.254 = 48.7459

e_8 = 1087-1074.493 = 12.0566

6 0
3 years ago
PLEASE HELP!!
DaniilM [7]
Prime factorization is finding which prime numbers multiply together to make the original number.
8 0
3 years ago
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