The correct answer:
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Explanation:
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Assuming you mean:
" √(9a²) + (√49b) − a + √b " ;
Simplify the expression:
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Note that: " √(9a²) = 3a " ;
"√(49b) = 7√b " ;
And we write the expression
→ " 3a + 7√b − a + √b " ;
Combine the "like terms:
" + 3a − a = 2a " ;
" + 7√b + 1√b = 8√b " ;
Rewrite:
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" 2a + 8√b " ; which is: Answer choice: [C]: " 2a + 8√b " .
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These two angles are corresponding angles, so x = 136 degrees
Answer:
It looks different. Can you provide some formulae based on it. I may help you out in the comment section!
Step-by-step explanation:
2.5 m = 250 cm
so, the scale factor is 1/250
that means the tennis court is in reality
10×250cm × 5.5×250cm = 2500 × 1375 = 3,437,500 cm²
1 m² = 100×100 = 10,000 cm²
so,
3,437,500 cm² = 343.75 m²
First of all, let's convert all the measures to the same unit: 4 feet are 48 inches.
Now, as the wheel turns, there is a proportion between the angle and the distance travelled: for example, when the car moves forward a whole circumference, the angle will be 360°. Conversely, if the wheel turns 180°, then the car will move forward a distance which is half the circumference of the wheel, and so on.
Since the radius is 16 inches, the circumference will be
So, we have the following proportion:
that you can read as: "if an angle of 360 corresponds to a distance travelled of 
, then the unknown angle x corresponds to a distance travelled of 48 inches.
Solving for x, we have
