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Assoli18 [71]
2 years ago
12

Question 20 (5 points)

Mathematics
1 answer:
Sloan [31]2 years ago
3 0

Answer:

Question 20   3 < c < 9

Question 21    2.5

Step-by-step explanation:

hope this helps u

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What is the least common multiple (LCM) of 6 and 10?<br> OA. 2.<br> OB. 20<br> O C. 30<br> OD. 60
Naily [24]

Answer:

30

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
Simplify the given expression below: (7-3i)•(2-i)
Dimas [21]

when multiplying two binomials together we use the F.O.I.L. method:

First

Outer

Inner

Last

(7-3i)(2-i)

First: 7 * 2 ..... Outter: 7 * -i .... Inner: -3i * 2 ...... Last: -3i * -i

First: 14 ...... Outter= -7i ..... Inner: -6i .... Last: 3i^2

putting this together we get 14-7i-6i+2i^2

We combine like terms and end up with 2i^2-13i+14

5 0
3 years ago
Find 3x2 − y3 − y3 − z if x = 3, y = −2, and z = −5.
IceJOKER [234]
3x²-y³ - y³ - z        if x = 3, y = -2, z = -5

Simply plug in all the values :)

3(3²) - (-2³) - (-2³) - (-5)

Simplify.

3(9) + 2³ + 2³ + 5

Simplify.

27 + 8 + 8 + 5

Simplify.

35 + 13

Simplify.

48

~Hope I helped!~
4 0
3 years ago
Abigail flipped a coin 20 times, and it landed with heads facing up 13 times. What percent of the coin flips landed with heads f
DIA [1.3K]
65% of the coins flipped landed with heads facing up because 13 were faced up out of 20.

Divide:
13/20=0.65=65%

Hope this helped☺☺
5 0
3 years ago
Numbered disks are placed in a box and one disk is selected at random. If there are 4 red discs numbered 1 through 4, and 2 yell
Yuliya22 [10]

Answer:

0.66 = 66%

Step-by-step explanation:

If we know that a odd-numbered disk is selected, we know that the number is 1, 3 or 5.

So, if it is a red disk, is can be number 1 or 3, so we have two possibilities.

If it is a yellow disk, it needs to be number 5, so we have just one possibility.

We have a total of 3 possibilities, and 2 of them are with red disks, so the probability is 2/3 = 0.66 = 66%

3 0
3 years ago
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