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3 years ago

What is the sum of 3 3/4 + 1 1/2=?

1 answer:

5 0

You need to find the least common denominator first which is 4. 3 3/4 can stay the same but you must have like denominators to add so change 1 1/2 to 1 2/4 by multiplying by 2/2. You know have like denominators and you can add whole numbers first 3+1=4 and then the fractions 3/4+2/4= 5/4 which is also 1 1/4. Now you add 4 so your answer is 5 1/4

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Select two ratios that are equivalent to 2 : 9.<br>

stira [4]

Answer:

4:18 6:27 plenty more but you said to so

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3 years ago

Jose surveyed the length of TV commercials (in seconds). Find, to 3 decimal places, the experimental probability that a randomly

Lynna [10]

Answer:

≈0.487

Step-by-step explanation:

I think this is your full question right?

Jose surveyed the length of TV commercials (in seconds). Find, to 3 decimal places, the experimental probability that a randomly chosen TV commercial will last:

Length Frequency

0-19 17

20-39 38

40-59 19 20 to 39 seconds.

60+ 20 to 4

Here is my anwer:

experimental probability = relative frequency = $\frac{number of oserved occuerencies}{total number of oserved occuerencies}$

Total frequencies = 17 + 38 +18 + 4 = 78

P(20 to 39s) = 38/78 ≈0.487

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3 years ago

What's (0,2) and 4, -4) ? need help please .

Umnica [9.8K]

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3 years ago

Read 2 more answers

The polynomial of degree 3, P(x), has a root of multiplicity 2 at x=4 and a root of multiplicity 1 at x=−2. The y-intercept is y

Sedbober [7]

Answer:

Step-by-step explanation:

P(x) = a(x - 2)2(x + 4), a ≠ 0

Use the given point (0,-10) to find a.

-10 = a(0 - 2)2(0 + 5) = a(4)(5) = 20a

a = -10/20 = -1/2

P(x) = (-1/2)(x - 2)2(x + 5)

You can expand this if you wish

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3 years ago

21×9=9×21 what property is used

kvv77 [185]

Hello There =)

Commutative property is used. The commutative property <span>states that two numbers can be multiplied in either order.</span>

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3 years ago