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valentinak56 [21]
3 years ago
12

Evaluate the following polynomial expression when a = 2, b = 5, and c = -5. ab-3bc + 3 abc​

Mathematics
1 answer:
Likurg_2 [28]3 years ago
3 0

Answer:

2×5-3×5×-5+3×2×5×-5

10-15-25+6×-25

=-600

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An easy math question for 5 points + 3 points for brainliest!
Amanda [17]

Answer:

a

I think is the answer if I am right make me brainliest

8 0
3 years ago
Pls helppp I will mark brainlist if correct !! :)
klemol [59]

Answer:

J) 2.4

Step-by-step explanation:

8[6.3-4(1.5)] Simplify the expression 2.4

5 0
3 years ago
The difference between two integers is 32.The ratio of these integers is 1:3.Find these integers​
shutvik [7]

Answer:

16 and 48

Step-by-step explanation:

let the 2 integers be x and 3x ← ratio 1 : 3

Then

3x - x = 32 ← difference between the integers

2x = 32 ( divide both sides by  2 )

x =  16

and 3x = 3 ×  16 =  48

Since magnitude of difference is 32

We can also express the difference as

x - 3x = 32

- 2x = 32 ( divide both sides by - 2 )

x = - 16

and 3x = 3 × - 16 = - 48

The 2 integers are 16 and 48 or - 16 and - 48

7 0
3 years ago
Read 2 more answers
the blue lake trail is 11 3/8 miles long. gemma has hiked 2 1/2 miles each hour for 3 hours. how far is she from the end?
lisov135 [29]
2 4/8 x 3 = 7 4/8
11 3/8 - 7 4/8 = 3 7/8 miles from the end
8 0
3 years ago
Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76
yKpoI14uk [10]

Answer:

12 cm²

Step-by-step explanation:

Length of rectangle = 5.6 cm

Width of rectangle = 2.1 cm

Area of rectangle = Length of rectangle×Width of rectangle

⇒Area of rectangle = 5.6×2.1

⇒Area of rectangle = 11.76 cm²

11.76 has 4 significant figures in order to write this term in 2 significant terms we round of the term

The last digit in the decimal place is 6. Now, 6≥5 so we round the next digit to 8 we get

11.8

Now the last digit in the decimal place is 8. Now, 8≥5 so we round the next digit to 2 we get

12

∴ Hence the area of the rectangle when rounded to 2 significant figures is 12 cm²

5 0
3 years ago
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