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3 years ago

What is the approximate volume of the cylinder? Use 3.14 to approximate tt. with a radius of 9 cm and a height of 22 cm

Mathematics

1 answer:

AlladinOne [14]3 years ago

8 0

Multiply 81*22 then multiply the answer to 3.14 and you get 5595

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What numbers multiply up to -72 and add up to -1?

Verdich [7]

8 and -9 hope this helps

6 0

3 years ago

A customer desires to mix her own concrete. The clerk knows that the ratio of cement to sand to gravel is 1:3:4. If the customer

Aleks [24]

Answer:

The quantity of cement use is 125 pounds

The quantity of sand use is 375 pounds

The quantity of gravel use is 500 pounds

Step-by-step explanation:

Given as :

The ratio of cement to sand to gravel = 1 : 3 : 4

The total quantity of dry mix required = 1000 pounds

Let The quantity of cement required = 1 × x pounds

The quantity of sand required = 3 × x pounds

The quantity of gravel required = 4 × x pounds

So, According to question

The total quantity of dry mix required = The quantity of cement required + The quantity of sand required + The quantity of gravel required

Or, x + 3 x + 4 x = 1000 pounds

Or, 8 x = 1000 pounds

∴ x = $\frac{1000}{8}$

I.e x = 125

So , The quantity of cement required = 1 × 125 pounds = 125 pounds

The quantity of sand required = 3 × 125 pounds = 375 pounds

The quantity of gravel required = 4 × 125 pounds = 500 pounds

Hence The quantity of cement use is 125 pounds

The quantity of sand use is 375 pounds

The quantity of gravel use is 500 pounds

Answer

8 0

3 years ago

Help pls and fast<br> 21x+1+26=28

Naya [18.7K]

X=1/21 that the answer

8 0

3 years ago

Read 2 more answers

Suppose $p(x)$ is a monic cubic polynomial with real coefficients such that $p(3-2i)=0$ and $p(0)=-52$. determine $p(x)$ (in exp

Maslowich

If $p(3-2i)=0,$ then complex number $3-2i$ is a root of cubic polynomial.

If polynomial has real coefficients, then conjugated $3+2i$ is also a root of polynomial.

Then the polynomial will be of a form

$p(x)=(x-(3-2i))(x-(3+2i))(x-a).$

Since $p(0)=-52,$ then

$-52=(0-(3-2i))(0-(3+2i))(0-a),\\ \\-52=(2i-3)(3+2i)a,\\ \\-52=(4i^2-9)a,\\ \\-52=(-4-9)a,\\ \\-13a=-52,\\ \\a=4.$

Therefore,

$p(x)=(x-(3-2i))(x-(3+2i))(x-4),\\ \\p(x)=(x^2-6x+13)(x-4),\\ \\p(x)=x^3-10x^2+37x-52.$

3 0

3 years ago

50% of all the cakes jenny baked that week were party cakes, 1/5 were fruit cakes, and the remainder were sponge cakes, what per

AlladinOne [14]

$x-\ all\ cakes\\\\
50\%x=0,5x\\\\
\frac{1}{5}x=0,2x-\ fruit\ cakes\\\\
sponge\ cakes=1x-0,2x-0,5x=1x-0,7x=0,3x\\\\
Sponge\ cakes\ were\ 30\%\ of\ all\ cakes.
$

3 0

3 years ago