3 years ago

I NEED HELP no need for explanation (I jus need letter answers

Mathematics

1 answer:

9966 [12]3 years ago

8 0

Answer:

Step-by-step explanation:

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I would really appreciate if someone would help me i don’t understand

alekssr [168]

Answer:

D. 48

Step-by-step explanation:

In the experiment, 16/40 landed exactly on heads. If you do 16/40 * 3/3 = 48/120.

This means that you can estimate 48 of the next 120 trials have 2 coins showing heads.

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3 years ago

Find the product of (x^2+2x-3)(4x^2-5x+6)

Evgesh-ka [11]

Answer:

$x^{4}$ + 3x³ - 16x² + 27x - 18

Step-by-step explanation:

Each term in the second factor is multiplied by each term in the first factor, that is

x²(4x² - 5x + 6) + 2x(4x² - 5x + 6) - 3(4x² - 5x + 6)

Distribute all 3 parenthesis

= 4 $x^{4}$ - 5x³ + 6x² + 8x³ - 10x² + 12x - 12x² + 15x - 18

Collecting like terms

= 4 $x^{4}$ + 3x³ - 16x² + 27x - 18

5 0

3 years ago

Simplify the following expression<br> 3(7n-8)

OLga [1]

Answer:

21n - 24

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

There are 30 students in a class of 18 of them own at least one pet what fraction of the class own pets? Give your answer in its

Verdich [7]

Answer:

18/30 simplified is 3/5

Step-by-step explanation:

3 0

3 years ago

What’s the answer???

VladimirAG [237]

The mean remains the same

3 0

3 years ago