Answer:
Engineering
Step-by-step explanation:
Start by eliminating illogical choices: dentistry, business, literature.
That leaves science and engineering.
Designs of suspension bridges usually include half parabolas or half hyperbolas, which indicates that engingeering is the logical choice here.
Science is discovery and understanding of the natural, physical world, whereras engineering is the application of knowledge and tools, of which space curves (such as hyperbolas) are one.
Answer:
x= -3
Step-by-step explanation:
3(x-4)= -21
x - 4 = -7( to get this divide both sides of the equation by 3 )
x = -7 + 4 ( add 4 to both sides of the equation)
x = -3 ( then add -7 and 4 to get -3)
So clearly x = -3
HOPE THIS HELPED
Answer to part A: 11w^2+7z^2
Answer to part B: 14w^2+9w
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Explanation:
For part A, the expression 4w^2+7w^2+7z^2 has one pair of like terms. That pair is 4w^2 and 7w^2 which combine to 11w^2. You add the coefficients to get 4+7 = 11, then tack w^2 onto everything to say 4w^2+7w^2 = 11w^2
We cannot combine 11w^2 and 7z^2 as they aren't like terms. So we leave it as 11w^2+7z^2
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In part B, the like terms are 15w and -9w. They combine to 15w-9w = 6w. You can think of it like 15-9 = 6 then stick a 'w' to each term. We cannot combine the w^2 term with the w terms.
The total cost is $698.75 if the painter works for 30.25 hours.
1. 9
2. 8
I hope this helped! #Sobangcha
