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Svetllana [295]
3 years ago
9

The ratio of plates to napkins is 18:72 Write. The ratio in its simplest form

Mathematics
1 answer:
RideAnS [48]3 years ago
7 0

The ratio in simplest form would be 2:8 because you divide both 18 and 72 by 9 to get 2 and 8

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Which equation represents the radius of a sphere as a function of the volume of the sphere?
boyakko [2]
V ,= 4/3 πr³


solve for r


3V/4=r³

so r is the cubed root of 3V/4
3 0
3 years ago
Take away 8 from 5 times m
ch4aika [34]

Answer:

5m-8

Step-by-step explanation:

7 0
3 years ago
Given the function: f(x)=x^2+1<br> a) Find f(–6) | b) Find f(8)<br><br> pls help me
ohaa [14]

Answer:

a) f(-6) = 37

b) f(8) = 65

Step-by-step explanation:

f(-6) = (-6)² + 1 = 36 + 1 = 37

f(8) = 8²+ 1 = 64 + 1 = 65

6 0
3 years ago
Determine what Descartes’ Rule of Signs says about the number of positive real roots and negative real roots for the polynomial
Allushta [10]

Answer:

Descarte's rule says that the polynomial will have the number of zeroes equal to the number of times  the sign off the coefficient changes.

For positive real roots:

P(x)=9x^3-4x^2+10

The coefficient of polynomial is:

+9 -4 +10

There is 2 time sign in changing in 1st and 2nd term and then in 2nd and 3rd term.

So,there will be 2 positive  real roots or less but even.

For negative real roots  find P(-x)

P(-x)=-(9x^3-4x^2+10)

P(-x)=-9x^3+4x^2-10

So, coefficient of above polynomial is:

-9 +4 -10

There is 2 time sign in changing in 1st and 2nd term and then in 2nd and 3rd term.

So,there will be 2 negative real roots or less but even.

7 0
3 years ago
Mr mojo borrowed $9000 for 10 years to make home improvements. If he repaid a total of $20000 at what interest rate did he borro
sesenic [268]

The rate of interest is 12.2 %

<em><u>Solution:</u></em>

Given that, Mr mojo borrowed $9000 for 10 years to make home improvements

He repaid a total of $ 20000

To find: Rate of interest

We can use simple interest formula to calculate the rate of interest

Total amount = Principal + simple interest

20000 = 9000 + simple interest

Simple interest = 20000 - 9000

Simple interest = 11000

<em><u>The simple interest is given as:</u></em>

I = \frac{ p \times r \times t}{100}

Where,

"I" is the simple interest

"p" is the principal

"r" is the rate of interest

"t" is the number of years

Substituting the values,

11000 = \frac{9000 \times r \times 10}{100}\\\\11000 = 900 \times r\\\\r = \frac{11000}{900} = 12.2

Thus rate of interest is 12.2 %

5 0
3 years ago
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