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2 years ago

Help me please please help

Mathematics

1 answer:

sergejj [24]2 years ago

5 0

79 degrees because you should use the term SOH CAH TOA look it up it’s really easy to remember

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Long division, x^3-2x^2+1 divided x^2-x+1

Bad White [126]

Step-by-step explanation:

i think this the answer. if it's wrong sorry

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3 years ago

a submarine starts out at 120 feet below sea level it dives another 175 feet and then rises 228 feet. what is the current depth

AleksandrR [38]

67 feet below sea level
120+175=295
295-228=67

6 0

3 years ago

Could someone help me please ?

Marizza181 [45]

1200 students x 30% = 1200 x 0.3 = 360 students.

60 teachers x 15% = 60 x 0.15 = 9 teachers.

Total = 360 + 9 = 369

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4 years ago

A club swimming pool is 21ft wide and 41ft long. The club members want a uniform width border around the pool. They have enough

oksano4ka [1.4K]

Answer-

Strip with 2.13 ft width can be used.

Solution-

A club swimming pool is 21 ft wide and 41 ft long.

Hence, the perimeter of the swimming pool is

$P=2(\text{Length}+\text{Width})=2(41+21)=2(62)=124\ ft$

The club members want a uniform width border around the pool.

They have enough material for 264 ft²

As they will cover the perimeter of the rectangular pool, so the length of the total used strip is equal to the perimeter of the swimming pool.

Let the width of the strip is x ft

So, the total area of the used strip is,

$A=\text{Length}\times \text{Width}$

Putting the values,

$\Rightarrow 264=124\times x$

$\Rightarrow x=\dfrac{264}{124}$

$\Rightarrow x=2.13\ ft$

Therefore, strip with 2.13 ft width can be used.

4 0

3 years ago

What is the volume of a sphere when the diameter is 10

Mashutka [201]

if the diameter is 10, its radius is half that, or 5.

$\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=5 \end{cases}\implies V=\cfrac{4\pi (5)^3}{3}\implies V=\cfrac{500\pi }{3} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill V\approx 523.599~\hfill$

8 0

3 years ago

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