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Anettt [7]
3 years ago
7

What is the sum of the coefficients of the expression 3x^4 + 5x^2 + x?

Mathematics
1 answer:
lukranit [14]3 years ago
7 0

Answer:

9

Step-by-step explanation:

coefficients = numbers in front of variables (x, x^2 etc)

so 5 + 3 + 1 = 9

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Find the missing side of each triangle. i need help!!!
Nezavi [6.7K]

Answer:

√161 yd

Step-by-step explanation:

Hi there!

We're given a right triangle (notice the right angle), the measure of one of the legs (one of the sides that make up the right angle) as 8 yd, and the hypotenuse (the side opposite to the right angle) as 15 yd.

We need to find x, which is the other leg in the triangle

If we are given 2 sides and need to find a third, we can use Pythagorean Theorem, which states that a²+b²=c² if a and b are legs and c is the hypotenuse

In this case, a=8, b=x, and c=15

So let's substitute those values into the formula

(8)²+x²=(15)²

raise everything to the second power

64+x²=225

subtract 64 from both sides

x²=161

take the square root of both x and 161

x=√161, x=-√161

-√161 cannot work in this case, as distance cannot be negative.

The question asks for the answer to be in simplified radical form, but √161 cannot be simplified down further

so the answer is <u>√161 yd</u>

Hope this helps! :)

3 0
3 years ago
A container can hold 25 pounds of beans. Right now there are 12.5 pound of beans. What is the percentage of beans in the contain
aivan3 [116]
50% because 12.5lbs is half of 25lbs
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Step-by-step explanation:

Add 9.02 + 3.87

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If the original point A (3,5) is rotated 180 degrees what will the image point be​
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Answer:

5,3 I think or 5,4

Step-by-step explanation:

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Which are true statements
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I think its A & B

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