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4 years ago

Please help.........................

Mathematics

1 answer:

astraxan [27]4 years ago

7 0

<span>The diameter in centimeters (cm) of a human hair is about 0.0025 cm. In terms of scientific notation, it is written as 2.5 x 1</span><span>0^-3 cm</span>

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Will award points- im currently using cos, sin and tan

MAVERICK [17]

Answer:

w = 9.82

x = 66.73

Step-by-step explanation:

By applying tangent rule in triangle ABD,

tan(81°) = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

6.31 = $\frac{62}{w}$

w = $\frac{62}{6.31}$

w = 9.82

Similarly,

tan(39°) = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

0.81 = $\frac{62}{(x+w)}$

0.81 = $\frac{62}{9.83+x}$

9.82 + x = $\frac{62}{0.81}$

x = 76.56 - 9.82

x = 66.74

3 0

3 years ago

The ratio table shows the weights for different amounts of snow. Find the unit rate in pounds per cubic foot. Give your answer i

kykrilka [37]

Answer:

1.75

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

AB bisects CD at point M, CD bisects AB at point M, and AB = 4 x CM. Describe the relationship between AM and CD

padilas [110]

$\text{Given that AB bisects the line segment CD at the point M,}\\
\text{And CD bisects the line segment AB at the point M. so M is the }\\
\text{midpoint of both the line segements AB and CD.}\\
\\
\text{also we have given a relation that, }AB=4\times CM\\
\text{and we need to find a relation between AM and CD.}\\
\\
\text{observe that since M is the midpoint of CD, so we have }CD=2\times CM\\
\\
\Rightarrow CM=\frac{CD}{2}$

$\text{and M is midpoint of AB, so }AB=2\times AM\\
\\
\text{so with these substitutions, the given realtion gives}\\
\\
AB=4\times CM\\
\\
\Rightarrow 2\times AM=4\times \frac{CD}{2}\\
\\
\Rightarrow 2\times AM=2\times CD\\
\\
\Rightarrow AM=CD$

Hence the relationship between AM and CD is : AM=CD

4 0

3 years ago

If a truck goes 30 kilometers in 30 minutes, what is its average speed?

Alenkinab [10]

If you want to find kmph, you could make a ratio, 30:30, and multiply each to get 60km in 60 min.so the answer is 60km in 1hr

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3 years ago

A cylindrical diesel fuel holding tank has a radius of 6 feet and a length of 12 feet. What is the maximum volume of fuel the ta

Ganezh [65]

Volume of a cylinder is calculated as pi x radius x radius x height

pi is 3.14

so volume = 3.14 x 6 feet x 6 feet x 12 feet = 1356.48 ft3

so the correct answer is C)1,357 ft3

6 0

3 years ago

Read 2 more answers