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3 years ago

Find the volume of a rectangular prism with length 8 m, width 7 m, and height 5 m.

Mathematics

1 answer:

Tju [1.3M]3 years ago

4 0

V= L*W*H
V=8*7*5
V=280m3

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riel wants to use squares to tile a floor that measures 240 cm by 300 cm what is the length of the largest square he can use

Alexxx [7]

<span>So, what you want is the biggest square that can evenly tile a space 240*300. The biggest possible number that can divide 240 and 300. Does that ring any bells? Maybe you should divide 240 and 300</span>

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3 years ago

given that sin theta= 1/4, 0 is less than theta but less than pi/2, what is the exact value of cos theta

lapo4ka [179]

Answer:

$\cos{\theta} = \frac{\sqrt{15}}{4}$

Step-by-step explanation:

For any angle $\theta$ , we have that:

$(\sin{\theta})^{2} + (\cos{\theta})^{2} = 1$

Quadrant:

$0 \leq \theta \leq \frac{\pi}{2}$ means that $\theta$ is in the first quadrant. This means that both the sine and the cosine have positive values.

Find the cosine:

$(\sin{\theta})^{2} + (\cos{\theta})^{2} = 1$

$(\frac{1}{4})^{2} + (\cos{\theta})^{2} = 1$

$\frac{1}{16} + (\cos{\theta})^{2} = 1$

$(\cos{\theta})^{2} = 1 - \frac{1}{16}$

$(\cos{\theta})^{2} = \frac{16-1}{16}$

$(\cos{\theta})^{2} = \frac{15}{16}$

$\cos{\theta} = \pm \sqrt{\frac{15}{16}}$

Since the angle is in the first quadrant, the cosine is positive.

$\cos{\theta} = \frac{\sqrt{15}}{4}$

3 0

3 years ago

Find the degree of w

lorasvet [3.4K]

Sum of angles of a linear pair = 180. So angle with measurement 142 and the adjacent angle to it have a sum = 180.

THerefore 142+y=180

Subtracting 142 from both sides

y = 38

Now in the down right sides corner triangle

38+49+w=180

87+w=180

Subtracting 80 from both sides,

w = 93

So the measurement of angle w = 93 .

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3 years ago

Read 2 more answers

Please look at photo and help me I will mark who ever is first

maksim [4K]

Answer:

a = 9

Step-by-step explanation:

you can simplify the proportion to:

$\frac{a}{24} =\frac{3}{8}$

use cross- multiplication

8a = 72

a = 9

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2 years ago

Solve 5(x – 4) + 3x – 9x + 7

LenaWriter [7]

Answer:

Well the Answer is <u>- x - 13 </u> Hope this helps :)

Step-by-step explanation:

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3 years ago