3 years ago

Express using a negative exponent. 1/z^9

1 answer:

4 0

According to the rules of indices:
1/a^b=a^-b
thus using this rule, our value will be expressed as follows:
1/z^9=z^-9
Hence the answer is: z^-9

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5z^3 - 2z^4 - 9z^2 + z

likoan [24]

Answer:

-z( 2z^3-5z^2+9z-1)

Step-by-step explanation:

Apply exponent rule: a^b+c=a^b*a^c

z^2=zz

z^3=z^2*z

z^4=z^3*z

Factor out common term z:

-z(2z^3-5z^2+9z-1)

8 0

4 years ago

A PLAY HAS PARTS FOR 12 BOYS AND 3 GIRLS. THERE ARE 5 LEAD ROLES FOR BOYS. ONE STUDENT IS INTERVIEWED FOR THE SCHOOL NEWSPAPER.

Black_prince [1.1K]

Answer:

33% chance

Step-by-step explanation:

12+3=15

There are 5 lead roles meaning that you do 5/15=.33 or 1/3

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3 years ago

The perimeter of a rectangle is 48 inches off the length is twice the width what is the length of the rectangle

sammy [17]

Answer:

Length: 16

Width: 8

Step-by-step explanation:

8 + 8 + 16 + 16 = 48

7 0

3 years ago

How can I do number 4

DedPeter [7]

4. 75x^3-48x
3x (25x^2-16)
3x (5x-4)(5x+4)

6 0

3 years ago

Simplify.

yulyashka [42]

Answer:

$\frac{1}{4}$

Step-by-step explanation:

$\frac{7}{8} + \frac{-2}{3}$ = $\frac{5}{24}$

$\frac{5}{24}$ ÷ $\frac{5}{6}$ = $\frac{30}{120}$

$\frac{30}{120}$ = $\frac{1}{4}$

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6 0

3 years ago