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kakasveta [241]
3 years ago
12

(-t^2+5t^2-6t)+(8t2 – 8t) Answer should be an expanded polynomial in standard form

Mathematics
2 answers:
docker41 [41]3 years ago
6 0
The answer should be

12t^2 - 14t

Let me know if it’s right.
MakcuM [25]3 years ago
3 0

Answer:

Step-by-step explanation:

[ -t² + 5t² - 6t] + [8t² - 8t] =  -t² + 5t² - 6t + 8t² - 8t  

 {bring the like terms together}

= -t² + 5t² + 8t² - 6t - 8t   {add/subtract the like terms}

= 12t² - 14t

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Determine a25
posledela
I believe it’s 16/21 but I’m not sure.

4 0
3 years ago
Help me please i will give brainliest.
kari74 [83]

Answer:

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8 0
3 years ago
Read 2 more answers
numerele a, b si c sunt direct proportionale cu 2, 3 si 5. Daca media aritmetica a celor trei numere este egala cu 100, determin
Fynjy0 [20]

Answer:

a = 60

b = 90

c = 150

Step-by-step explanation:

Numerele a, b și c sunt direct proporționale cu 2, 3 și 5.

Unde k este constantă de proporționalitate

a ∝ 2

a = 2k

b ∝ 3

b = 3k

c ∝ 5

c = 5k

Dacă media aritmetică a celor trei numere este egală cu 100, determinați numerele a, b și c

= 2k + 3k + 5k / 3 = 100

= 10k / 3 = 100

Cross Multiply

= 10k = 3 × 100

= 10k = 300

Împărțiți ambele părți la 10

k = 300/10

k = 30

Pentru numărul a

a = 2k

a = 2 × 30

a = 60

Pentru numărul b

b = 3k

b = 3 × 30

b = 90

Pentru numărul c

c = 5k

c = 5 × 30

c = 150

Prin urmare, a = 60, b = 90, c = 150

3 0
3 years ago
Can someone explain how to do this? I don't get it.
mihalych1998 [28]

Answer: I think 91.9

Step-by-step explanation:

If I remember right, all the angles of a triangle add up to 180 degrees. So taking 22.8 + 65.3 = 88.1, then 180 - 88.1 = 91.9

Sorry if that’s not right! I just wanted to take a crack at it.

4 0
3 years ago
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The first 32 whole numbers are evenly spaced around the circumference of a circle. Which number will be opposite of 26?
Ludmilka [50]

Answer:

"10"

Step-by-step explanation:

This is rather thinking "pictorially". Picture it.

You can match it with a round clock that has numbers 1 - 12 written on it.

So,

32 and 16 would be opposite of each other [top and bottom]. And, 1 - 15 would be on right side and 17 - 31 would be on left side.

Now,

Going counter-clockwise from 32, 26 would be the 6th number. Going counter-clockwise from 16, 10 would be the 6th number.

Hence, they would be opposite of each other.

10 would be opposite of 26

6 0
3 years ago
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