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2 years ago

Simplify question 3 (a) , plz answer asap

Mathematics

1 answer:

Mashcka [7]2 years ago

6 0

Exact form:
$7 \sqrt{2}$

Decimal form:
9.89949493

Good luck!! :)

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Is 8.99 a rational number

Viefleur [7K]

No it is undefined when the number reaches to zero.

5 0

2 years ago

Please solve it 90 POINTS please help- PLEASE HELP its Identify the following for the quadratic relations please slove it all pl

sdas [7]

Answer:

$\boxed{\mathrm{view \: explanation}}$

Step-by-step explanation:

a) elimination method

b) substitution method

c) substitution method

For the first part we can elimate the y variable by subtracting the equations. We can then find the value of x.

For the second part we can substitute y as 2x+5 in the second equation and solve for x.

For the third part we can substitute y as 4x+3 in the first equation and solve for x.

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8 0

2 years ago

Find the length of the hypotenuse of a triangle if one of its legs is 11 cm long and its perimeter is 132 cm.

rodikova [14]

Answer:

1.)

132 cm - 11 cm = 121 cm

So let the hypotenuse be x and the other leg be (121 - x).

11^2 + (121 - x)^2 = x^2

121 + 121^2 - 121(2)x = 0

x = 1/2 + 121/2 = 61 cm

Step-by-step explanation: not sure if this is right or not

7 0

3 years ago

The 10th term of an a.p is -27 and the 5th term is -12 .find the first term?

horsena [70]

Step-by-step explanation:

$a_{10} = - 27... (Given) \\\\\therefore a + 9d = - 27...... (1)\\\\a_{5} = - 12... (Given) \\\\\therefore a + 4d = - 12.......(2)\\\\$

Subtracting equation (2) from equation (1)

$a + 9d-( a + 4d )= - 27-(-12)\\\\\therefore a +9d - a-4d = - 27+12\\\\\therefore 5d = - 15\\\\\therefore d = \frac {- 15}{5}\\\\\huge \orange {\boxed {\therefore d = -3}} \\\\$

Substituting d = - 3 in equation (1), we find:

$a + 9\times (-3)= - 27\\\\\therefore a - 27 = - 27\\\\\therefore a = 27- 27\\\\\huge \red {\boxed {\therefore a = 0}}\\\\$

Hence, first term is zero.

3 0

3 years ago

Whats the ratio of 200 over 40 and 25 over x

otez555 [7]

I believe the answer is 5.

200 divided by 25 is 8

40 divided by 8 is 5

8 0

3 years ago