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stira [4]
3 years ago
11

Looking back on previous tests and quiz questions can benefit you in determining what to study because they

Mathematics
2 answers:
dexar [7]3 years ago
5 0

answer b because it most likely that it wont be used word for word on another test


Artyom0805 [142]3 years ago
4 0

Answer: (b) Provide hints on what the teacher thinks is important

Explanation: Clearly, the teacher selects what to ask in the tests, and it is plausible to think that (s)he will select problems that they deem important.

The teacher will know that students look at past tests, and so they will tend to change the wording and values in the tests to prevent plagiarism, so (a) is not the right choice.

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What is the value of 3x squared when x = 2?
KonstantinChe [14]

Answer:

Step-by-step explanation:

(3x)^{2}=(3(2))^{2} =36

(OR)

3(x^{2})=3(4)=12

Its depend on your sentence structure, what u r asking!!

7 0
3 years ago
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What are the coordinates on the coordinate plane?
Lyrx [107]

Answer:

0.9 1.8 2.9

Step-by-step explanation:

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A grocery store has 14 cartons of yogurt for sale, of which 6 are blackberry.
Juli2301 [7.4K]

Answer:

3 out of 7

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6 0
3 years ago
DJ Giovanni is making a playlist for a friend; he is trying to decide what 12 songs to play and in what order they should be pla
Elena L [17]

Answer:

5.78×10¹⁵

Step-by-step explanation:

The playlist has 12 songs, and he wants the same number of songs for each genre, so he must pick 4 songs per genre.

The number of ways he can choose 4 country songs (ignoring the order) is ₂₂C₄ = 7315.

The number of ways he can choose 4 reggae songs (ignoring the order) is ₁₁C₄ = 330.

The number of ways he can choose 4 pop songs (ignoring the order) is ₅C₄ = 5.

The total number of combinations is 7315 × 330 × 5 = 1.21×10⁷.

Once he has his 12 songs selected, the number of ways he can arrange them is ₁₂P₁₂ = 12! = 4.79×10⁸.

So the total number of possible playlists is:

(1.21×10⁷) × (4.79×10⁸) = 5.78×10¹⁵

4 0
3 years ago
a baker mixes 8 3/4 cups of white flour with 2 1/2 cups of rye flour for a bread recipe. how many cups of white flour does the b
mr_godi [17]

Answer: 3.5 or 3 2/4 a cup of white flower for each cup of rye flower

Step-by-step explanation:

8 3/4 divided by 2 2/4

that's it

5 0
3 years ago
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