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1 year ago

Answer the following.

Mathematics

1 answer:

Oksana_A [137]1 year ago

7 0

Answer:

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A crate made of wood measures 50 cm wide, 70 cm long, and 40 cm tall.

insens350 [35]

The surface area of the crate is the summation of all the areas of its six faces. The area of the two of its faces is the product of 50 cm and 70 cm which is 3500 cm^2. The other will have an area of 2000 cm^2. The last two will have the area of 2800 cm^2. Thus, the unit of measurement used to figure out the surface area is the cm^2. The answer is letter A. cm2

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3 years ago

What is Perpendicular to 5x-3y=30 and passing through (-2,7)

alisha [4.7K]

$k:y=m_1x+b_1;\ l:y=m_2x+b_2\\\\k\ \perp\ l\iff m_1\cdot m_2=-1\\\\k\ ||\ l\iff m_1=m_2$

We have:

$k:5x-3y=30\ \ \ \ |-5x\\\\-3y=-5x+30\ \ \ \ |:(-3)\\\\y=\dfrac{5}{3}x-10\to m_1=\dfrac{5}{3}\\\\l:y=m_2x+b\\\\k\ \perp l\Rightarrow \dfrac{5}{3}m_2=-1\ \ \ \ |\cdot\dfrac{3}{5}\\\\m_2=-\dfrac{3}{5}$

$l:y=-\dfrac{3}{5}x+b$

The line l is passing through (-2, 7). Substitute the coordinates of the point to the equation of a line l:

$7=-\dfrac{3}{5}\cdot(-2)+b\\\\\dfrac{6}{5}+b=7\ \ \ \ |-\dfrac{6}{5}\\\\b=\dfrac{35}{5}-\dfrac{6}{5}\\\\b=\dfrac{29}{5}$

$l:y=-\dfrac{3}{5}x+\dfrac{29}{5}\ \ \ \ |\cdot5\\\\5y=-3x+29\ \ \ \ |+3x\\\\3x+5y=29$

<h2>Answer: 3x + 5y = 29</h2>

3 0

3 years ago

PLEASE HELP!!! The right rectangular prism is packed with unit cubes of the appropriate unit fraction edge lengths. Find the vol

never [62]

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Formula :
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Volume = Length x Width x Height

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Find volume :
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$\text { Volume = } 4\dfrac{1}{4} \times 5 \times 2$

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Change to improper fractions :
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$\text { Volume = } \dfrac{17}{4} \times \dfrac{5}{1} \times \dfrac{2}{1}$

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Combine into single fraction :
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$\text { Volume = } \dfrac{170}{4}$

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Simplify:
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$\text { Volume = } 42 \dfrac{1}{2} \ cm^3$

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Answer: Volume = 42 1/2cm³ (Answer c)
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3 years ago

Read 2 more answers

Jayden asked his classmates, "How many days do you exercise in a typical

konstantin123 [22]

Answer:

Step-by-step explanation:

There is 13 dots.

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3 years ago

Fourteen pounds of beans are distributed equally into 10 bags to give out at the food bank. How many pounds of beans are in each

grin007 [14]

Answer:

1.4 pounds

Step-by-step explanation:

to get this ancwer you divide 14 by 10 witch gives you 1.4 pounds

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3 years ago