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NNADVOKAT [17]
3 years ago
10

Help me plz fast and I will mark the brainiest

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
6 0

Answer:

a is the answer -3

Step-by-step explanation:

-3 (-3) ^2 =81

have a nice day

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NOW FOR REAL ITS MISSING DUE YESTERDAY I NEED THIS DONE NOW
Whitepunk [10]

Answer:

6.45

Step-by-step explanation:

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This is the middle between 18 and 21.

Hope this helps and give brainliest, thank me and rate it 5 please. :)

4 0
3 years ago
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From a club 25 people in how many ways can a group of five members be selected to attend conference? A group of 5 members can be
IgorLugansk [536]

Answer:

²⁵C₅ = 53130

Step-by-step explanation:

number of people in the club = 25

number of people to be selected in the group to attend conference = 5

number of ways of selecting this group from 25 people is same as selecting 5 objects from 25 distinct objects = ²⁵C₅ (Selection)

= \frac{25!}{5!(25-5)!}

= \frac{25!}{5!(20)!}

= 21×22×23×5

= 53130

∴ <u>Number of ways of selecting this group from 25 people = 53130</u>

8 0
3 years ago
Find the value of x <br><br> show your work
madreJ [45]

Answer:

x = 8√3

Step-by-step explanation:

Using the Pythagorean Theorem:

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x² = 192

√x² = √192

x = √64 √3

x = 8√3

8 0
3 years ago
Simplify.−1/2x+3−4x+5+3/2xEnter your answer in the box.
allochka39001 [22]
-3x+8. That is your answer.
3 0
3 years ago
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I need help with this geometry problem!
Gwar [14]
Line a and Line b are parallel.

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4 0
3 years ago
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