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In-s [12.5K]
2 years ago
14

it takes about me 25 minutes to make out a test for a mathamatics class. How long will it take to make out tests for all fve of

my classes
Mathematics
2 answers:
Alekssandra [29.7K]2 years ago
5 0
²25
<u>x5
</u>125
<u>Final Answer: 125

</u>
Elza [17]2 years ago
3 0
150 minutes of mathmatices class
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Please help me, please please help ASAP!!!
shtirl [24]
Basically u evaluate it into (3⁶y⁵)² then use the properties of exponents to simplify to (729y⁵)² and then ur answer is 729²y¹⁰ or in other words, 3¹²•y¹⁰ so ur answer is B.
6 0
2 years ago
3. What are the roots of the polynomial y = x³ - 8?
zzz [600]

Step-by-step explanation:

x^3 is a perfect cube, 8 is a perfect cube, so we use difference of cubes.

{a}^{3}  -  {b}^{3}  = (a - b)( {a}^{2}  + ab +  {b}^{2} )

Cube root of x^3 is x.

Cube root of 8 is 2

So

a=x

b= 2.

(x - 2)( {x}^{2}  - 2x + 4)

Set these equations equal to zero

x - 2 = 0

x = 2

{x}^{2}  - 2x + 4 = 0

If we do the discriminant, we get a negative answer so we would have two imaginary solutions,

Thus the only real root is 2.

If you want imaginary solutions, apply the quadratic formula.

1 + i  \sqrt{ 3 }

and

1 - i \sqrt{3}

4 0
1 year ago
Three fifths of the children in a school are boys. 7/8 of the girls in the school are right-handed. What fraction of the childre
Kaylis [27]

Answer:

To find the answer we only need to know,

Total no.of girls and Total no.of right handed girls.

So,

Total no.of right handed girls = 7/8

Total no.of girls                        = 8/8 (as given in question)

Total no.of left handed girls is,

(Fraction of total no.of girls) - (Fraction of total no.of left handed girls)

= 8/8 - 7/8

= 1/8

∴ 1/8 of the girls in the school are left handed.

7 0
3 years ago
Fracción equivalente de 1/3
Scrat [10]

Answer:

2/6

Step-by-step explanation:

1/3 times 2

4 0
3 years ago
What is the length of the missing side , x? 22, 11, x
yulyashka [42]

Answer:

33

Step-by-step explanation:

I say 33, because of the 11 times table

4 0
2 years ago
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