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3 years ago

What integer does the square root of 75 lie between...please explain

Mathematics

2 answers:

rodikova [14]3 years ago

8 0

8 and 9 because 8 x 8= 64 and 9 x 9 = 81. Between 64 and 81 is 75.

yKpoI14uk [10]3 years ago

5 0

Answer:

The square root of 75 lies between 8 and 9

Step-by-step explanation:

It is very important to understand what is a square root about. Let's see an example.

When you multiply the number 3 twice the result is 9.

$3\times 3=9$

The square root consists in the opposite operation. For example, if we need to calculate the square root of 9, the result would be 3.

$\sqrt{9}=3$

Now, the idea is to get the integer number between the square root of 75 lies.

Note that the square root of 75 is not an integer. If we multiply twice 8.6603 we obtain 75.

If we multiply the number 8 twice, we get 64.

If we multiply the number 9 twice, we get 81.

So, the square root of 75 lies between 8 and 9.

know that the square root of a number is a mathematical operation that consists in finding a number that

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Anni [7]

Answer:

35.5 cm

Step-by-step explanation:

The perimeter (P) is calculated as

P = (2 × 6.75 ) + (2 × $\sqrt{121}$ )

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3 years ago

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Ken's fitness member ship cost $100 to join plus a $25 monthly fee. Ken also used a coupon to get 10% off the monthly fee. What

GREYUIT [131]

The equation that models the total cost is y = 100 + 22.5m

Step-by-step explanation:

Fitness member ship cost = $100

Monthly fee = $25

Discount = 10% on monthly fee

To calculate new monthly fee after discount,

25 - (25*10%) --> 25 - 2.5 --> $22.5

Number of months = m

Fee in m months = 22.5*m = 22.5m

<u>Equation:</u>

(x) is the monthly fee $22.5

(m) is the number of months

(y) is the total cost

So,

y = mx + c

y = m(22.5) + 100

y = 100 + 22.5m

Therefore, the equation that models the total cost is y = 100 + 22.5m

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3 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

All about simulitious equations

Korolek [52]

Answer:

On occasions you will come across two or more unknown quantities, and two or more equations

relating them. These are called simultaneous equations and when asked to solve them you

must find values of the unknowns which satisfy all the given equations at the same time.

Step-by-step explanation:

1. The solution of a pair of simultaneous equations

The solution of the pair of simultaneous equations

3x + 2y = 36, and 5x + 4y = 64

is x = 8 and y = 6. This is easily verified by substituting these values into the left-hand sides

to obtain the values on the right. So x = 8, y = 6 satisfy the simultaneous equations.

2. Solving a pair of simultaneous equations

There are many ways of solving simultaneous equations. Perhaps the simplest way is elimination. This is a process which involves removing or eliminating one of the unknowns to leave a

single equation which involves the other unknown. The method is best illustrated by example.

Example

Solve the simultaneous equations 3x + 2y = 36 (1)

5x + 4y = 64 (2) .

Solution

Notice that if we multiply both sides of the first equation by 2 we obtain an equivalent equation

6x + 4y = 72 (3)

Now, if equation (2) is subtracted from equation (3) the terms involving y will be eliminated:

6x + 4y = 72 − (3)

5x + 4y = 64 (2)

x + 0y = 8

5 0

3 years ago