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Mathematics

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Lera25 [3.4K]3 years ago

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1. Determine which ratio forms a proportion with 9/5 by finding a common multiplier.

abruzzese [7]

<span>1. Determine which ratio forms a proportion with 9/5 by finding a common multiplier.
9/5 x (6/6) = 54/30
a. 54/30

2. Determine which ratio forms a proportion with 15/8 by using cross products.
</span>60/32 / (4/4) = 15/8<span>
c. 60/32

4. In a survey, 3 out of 10 people names blue as their favorite color. 1 out of 5 named red. If 1,200 people were included in the survey, how many named blue or red as their favorite color?
a. 700 people

5.Solve the proportion using cross products. Round to the nearest hundredth if necessary.
</span>385 miles (1 inch / 15 miles) = 25.67 in
b. 25.67 in

7 0

3 years ago

Evaluate

LekaFEV [45]

$\lim_{x\to0^+}\frac{1-\cos(x)}{x^2\sin(x)}=\frac{1-\cos(0^+)}{0^+^2\sin(0^+)\frac{0^+}{+\infty}=\boxed{0^+}$