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Tresset [83]
2 years ago
11

MARKING BRAINLIEST!!!

Mathematics
1 answer:
liubo4ka [24]2 years ago
8 0

Answer:

7.6

Step-by-step explanation:

GEATER than 6.9 But LESS than 8.1 so its 7.6

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Use the sum of cubes identity to find the factors of the expression 8x6 + 27y3. Write your answer in the form of the expression
Katyanochek1 [597]

The Answer to this Question is:

(2x^2+3y)(4x^4-6x^2y+9y^2)

This symbol ^ means that the number after is an exponent.

5 0
2 years ago
Jim weighs 30 pounds less than Tom, and together they weigh 210 pounds. Let n = Tom's weight in pounds.
zlopas [31]

The equation that represents the given problem is (n-30) + n = 210. The correct option is the first option (n-30) + n = 210

<h3>Linear equation</h3>

From the question, we are to write an equation for the given problem

From the given information,

n = Tom's weight in pounds

If Jim weighs 30 pounds less than Tom

Then,

Jim weighs (n - 30)

Thus,

The sum of their weight is

(n-30) + n

∴ (n-30) + n = 210

Hence, the equation that represents the given problem is (n-30) + n = 210. The correct option is the first option (n-30) + n = 210

Learn more on Linear equations here: brainly.com/question/4681624

#SPJ1

3 0
2 years ago
What would be the answer too 900ft2+ 144ft2???
In-s [12.5K]

Answer: 1044ft

Step-by-step explanation:

900ft2 + 144ft2

= 1044ft2 (square root)

1044ft

hope this helps :))

5 0
2 years ago
Matt reasoned that he can write 9/1,000 as 0.9. Is he correct? Explain your answer.
GuDViN [60]
No because 9/1,000 in decimals would be 0.009 because if the number was a 3 number then it would go in the tenths
5 0
3 years ago
Find all solutions to the equation in the interval [0, 2π). cos 2x - cos x = 0
Jlenok [28]
This is the concept of algebra, to solve the expression we proceed as follows;
cos 2x-cosx=0
cos 2x=cosx
but:
cos 2x+1=2(cos^2x)
thereore;
from:
cos 2x=cos x
adding 1 on both sides we get:
cos 2x+1=cos x+1
2(cos^2x)=cosx+1
suppose;
cos x=a
thus;
2a^2=a+1
a^2-1/2a-1/2=0
solving the above quadratic we get:
a=-0.5 and a=1
when a=-0.5
cosx=-0.5
x=120=2/3π
when x=1
cos x=1
x=0
the answer is:
x=0 or x=2/3π

4 0
3 years ago
Read 2 more answers
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