2 years ago

There are 99 males and 121 females participating in a marathon. What participants are females?

Mathematics

1 answer:

notsponge [240]2 years ago

4 0

Answer:

121..??

Step-by-step explanation:

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Simplify the rational expression. State any restrictions on the variable.

ExtremeBDS [4]

we are given

$\frac{(n^4-10n^2+24)}{(n^4-9n^2+18)}$

Firstly, we will factor numerators and denominators

$\frac{(n^4-10n^2+24)}{(n^4-9n^2+18)}=\frac{(n^2-6)(n^2-4)}{(n^2-3)(n^2-6)}$

we can see that

n^2 -6 is factor on both numerator and denominator

so, it will get cancelled

and n^2 -6 can not be equal to 0

so, one of restriction is

$n^2-6\neq 0$

$n\neq -+ \sqrt{6}$

we can simplify it

$\frac{(n^4-10n^2+24)}{(n^4-9n^2+18)}=\frac{(n^2-4)}{(n^2-3)}$

we know that denominator can not be zero

$n^2-3\neq 0$

$n\neq -+ \sqrt{3}$

so, option-B.......Answer

3 0

3 years ago

the length of a rectangle is 9 cm and the diagonal of the rectangle is 11 cm. Find the width of the rectangle

ss7ja [257]

Answer: The width is the square root of 40 or 6.32

Step-by-step explanation:

9^2 + b^2 = 11^2 where b squared is the width

81 + b^2 = 121

-81 -81

b^2 = 40

b= 6.32

7 0

3 years ago

6.23+(-12.49)-2.6 What's the answer?

Mila [183]

6.23+ -12.49 -2.6= 6.23+ -12.49+ -2.6
-6.26+-2.6= -8.86

4 0

3 years ago

Read 2 more answers

100p for an answer please

Lelu [443]

Quotient is n over 7
difference is n-7
product is 7n
sum is n+7

3 0

3 years ago

Given m || n, find the value of x and y. m (8x-5) (y+16) n (5x-10)

jekas [21]

Answer:

x=6

y=9 so it is the answer....

4 0

2 years ago