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3 years ago

Which is a name for the angle shown? Select two answers

Mathematics

1 answer:

alexandr402 [8]3 years ago

7 0

Answer:

I'm not sure how to answer is but i think its called < CDE or < EDC or it is an acute angle.

Step-by-step explanation:

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The shadows of two vertical poles were measured at the same time to be 6m and 15m long. If the first pole is 8cm long, find the

son4ous [18]

Answer:

20 cm

Step-by-step explanation:

Shadow of vertical poles : 6m ; 15m

Length of poles : 8cm ; h

8cm long pole = shadow length, 6m

h cm long pole = shadow length, 15 m

Using cross multiplication :

8cm * 15 m = h cm * 6m

120 = 6h

h = 120 / 6

h = 20 cm

Height of second pole = 20cm

8 0

3 years ago

The graph shows the relationship between mass and volume for pure silver. Use the graph to determine the density of pure silver

Natalija [7]

Answer:

C. Slope and $10.49 g/cm^3$

Step-by-step explanation:

We're missing the graph itself, but I can make an educated guess:

- Assuming x = volume and y = mass:

$p = \frac{m}{v}$

density = mass/volume

x = volume = run

y = mass = rise

mass/volume = rise/run = slope

The slope of the line (assuming the graph is purely linear) represents mass/volume, which is the formula for density.

I had to Google the density of silver itself. Do the math from the graph for a more appropriate answer, as the graph may be less scientifically precise.

7 0

3 years ago

The measure of<br> an exterior angle<br> of a regular<br> octagon is x + 10.<br> Find x.

elena-s [515]

Answer:

x = 35

Step-by-step explanation:

The sum of the exterior angles of a polygon = 360°

Then

1 exterior angle = 360° ÷ 8 = 45° , so

x + 10 = 45 ( subtract 10 from both sides )

x = 35

3 0

3 years ago

What’s 45 divided by 14.04

Vladimir79 [104]

Answer:

3.205

Step-by-step explanation:

convert the decimal number to a fraction

$45 \div \frac{351}{25}$

To divide by fraction, multiply by the reciprocal of that fraction

$45 \times \frac{25}{351}$

Reduce the numbers with the greatest common divisor 9

$5 \times \frac{25}{39}$

Calculate the product

$\frac{125}{39}$

Now turn it to a decimal which will be

$3.20513$

8 0

3 years ago

4 3/4 minus 5/8 in simplest form

siniylev [52]

$4\frac{3}{4}-\frac{5}{8}\\\\\frac{(4*4)+3}{4}-\frac{5}{8}\\\\\frac{19}{4}-\frac{5}{8}\\\\\frac{19}{4}(\frac{2}{2})-\frac{5}{8}\\\\\frac{38}{8}-\frac{5}{8}\\\\\frac{38-5}{8}\\\\\frac{33}{8}\\\\\\4\frac{1}{8}$

4 0

3 years ago