exam Maths Puzzle Numerical Ability

3+2x=5x - 9

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exam Other Question

Factor each polynomial, if possible cannot be factored ,write prime.

-49r^2+4t^2

and

4c^2-5d^2

If someone could help me with these two i think i can do the rest of my A roof rises 8.25 feet over a horizontal distance of 18.56 feet. What is the slope of the roof to the nearest hundredth?
a. 2.25
b. 0.44
c. 1.78
d. 1.13

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