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3 years ago

A teacher gives a test with questions that fall into 3 levels of difficulty (easy, moderate, and hard).

1 answer:

4 0

When a teacher gives a test with questions that fall into 3 levels of difficulty (easy, moderate, and hard) The scoring method that would best allow her to identify the students who need help is:
B. weight each question by its difficulty: 1 for easy, 2 for moderate, and 3 for hard.

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A recursive rule for a geometric sequence is a1=49;an=3an−1.

dalvyx [7]

I think it should be an= 49x3^(n-1)

3 0

3 years ago

Which of the numbers below are whole numbers A 0.328 B.678.79 C.159113 D.3809 E.757 F.0

Naily [24]

Answer:

Step-by-step explanation:

zero

Anytime you have zero as a possible answer, you have to consider it carefully. Part of the whole number system is 0. They go up from there. No fraction is a whole number. No decimal is a whole number except those that are equal to a whole number.

The rest are all decimals so they are not whole numbers. Note I just noticed that the other numbers have periods after the choice. There are other whole numbers there if that is the case.

C D E and F are all whole numbers if that is a period after their choice letters.

4 0

3 years ago

Find the unknown value in proportion 2.3/6.7 = 4.6/x <br> a)13.4<br>b)20.1<br>c)1.6<br>d)3.4

Dominik [7]

2.3/6.7 = 4.6/x

using cross products

2.3*x = 6.7 * 4.6

divide by 2.3

x = 6.7 * 4.6 / 2.3

x = 6.7 * 2

x = 13.4

Choice A

5 0

3 years ago

Solve A = 1/2bh for h

Delicious77 [7]

Answer:

C i think

Step-by-step explanation:

divide both sides by b, then multiply both sides by 2 and get 2A/b =h

6 0

3 years ago

Can somebody help me with this plz......

adelina 88 [10]

Answer:

He must score 83 in the last test.

Step-by-step explanation:

To get a mean of 80 Terry must score a total of 4*80 = 320 over the 4 tests.

So his score for the last test must be 320 - (71 + 80 + 86)

= 320 - 237

= 83.

5 0

3 years ago