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Mandarinka [93]
3 years ago
6

Answers and the top is to read it pls help for BIG BRAIN!

Mathematics
2 answers:
Rzqust [24]3 years ago
8 0
B-4 because your subtracting the number of books read.
Nata [24]3 years ago
4 0

Answer:

C. b-4

Step-by-step explanation:

The number -4 shouldn't change since she read 4 fewer books

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A physiological psychologist has performed an experiment to determine if a particular drug, smartozine, affects maze learning in
Elis [28]

Answer:

The critical value of F for this situation is 2.975.

Step-by-step explanation:

A test is being performed to determine if a particular drug, smartozine, affects maze learning in rats.

The groups are divided as follows:

  • Three groups of 8 rats each are injected with one of three different doses of smartozine.
  • The fourth group of 6 rats is injected with a saline solution as a control.

So, there were in total <em>k</em> = 4 groups with <em>n</em> = 30 rats.

The significance level of the test is, <em>α</em> = 0.05.

Compute the critical value of <em>F</em> as follows:

F_{\alpha, (k-1, n-k)}=F_{0.05, (4-1, 30-4)}=F_{0.05, (3,26)}=2.975

*Use the <em>F</em>-table.

Thus, the critical value of F for this situation is 2.975.

5 0
3 years ago
Triangle ABC has vertices at A(−3, 4), B(4, −2), C(8, 3). The triangle translates 2 units up and 1 unit right. Which rule repres
asambeis [7]

Answer:

a(-2.6) b(5, 0) c(9,5)

Step-by-step explanation:

the rule is x+1 y+2 for each of the vertices

6 0
2 years ago
Julia owns a coffee shop. She experimented with mixing City Roast Colombian coffee that costs $7.80 per pound with French Roast
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Answer:

Step-by-step explanation:

x = City Roast Colombian coffee

y = French Roast Colombian coffee

x + y = 20

6 0
3 years ago
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Identify the explicit function for the sequence in the table
nignag [31]
The common difference is 19-7 = 31-19 = 12, so this is an arithmetic sequence. The initial term (when n=1) is 7.

The explicit formula for the terms of an arithmetic sequence is
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  B. a(n) = 7+(n-1)·12
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My sister asks you guys for help once more!<br> What is the value of 7/10 - 3/6?
nirvana33 [79]

Answer:

Part 1: 10, Part 2: 6

Step-by-step explanation:

8 0
3 years ago
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