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OLEGan [10]
3 years ago
7

I need help with these could you guys help me?

Mathematics
1 answer:
Elena-2011 [213]3 years ago
4 0
The first one simplifies by collecting like terms to become:
7a²(4b²+9ab+10)
and the second one simplifies again by collecting like terms to become:
7u(16u²-49v²) 
Got anymore questions, happy to help :)
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Above are two different models of the same triangular-shaped garden. If the height of the model on the left is 14 cm, what is th
Katyanochek1 [597]

Please consider the attached graph.

We have been given that there are two different models of the same triangular-shaped garden. The height of the model on the left is 14 cm. We are asked to find the height of the model.

First of all, we will convert 14 cm into feet.

We can see that model on left side has a scale of 1 cm is equal to 15 feet.

14 cm = 14×15 feet = 210 feet.

We can see that model on the right side has a scale of 1 cm is equal to 7.5 feet.

Since both models represent same triangular-shaped garden, so the actual height for the both models will be same.

Now we need to convert actual height of 210 feet into inches using 2nd scale.

\text{210 ft}=210\text{ ft}\times \frac{1\text{ inch}}{\text{7.5 ft}}=\frac{210}{7.5}\text{ inch}=28\text{ inch}

Therefore, the height of the model on right is 28 inches.

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4 years ago
if you drive for 3 hour at 60 mph and then for 2 hour at 70mph, how far will you travel? c. 350 miles
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If you drive for 2 hours at 70 mph you will have gone 140 miles.

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