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Masja [62]
3 years ago
8

Which expression is equivalent to the given expression? Assume the denominator does not equal zero.

Mathematics
1 answer:
lutik1710 [3]3 years ago
8 0

Answer:

Step-by-step explanation:

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PLZ help super fast thanks
Nikolay [14]

Answer:

B. \frac{1}{x^2y^7}

Step-by-step explanation:

Given:

(x^3y^{-2}z)(x^{-5}y^{-5}z^{-1})

Hence Solving the given expression we get;

By Law of Indices which states;

(a^xb^yc^z)(a^pb^qc^r) = a^{x+p}b^{y+q}c^{z+r}

Hence we get;

x^{3+(-5)}y^{(-2)+(-5)}z^{1+(-1)}\\\\x^{3-5}y^{-2-5}z^{1-1}\\\\x^{-2}y^{-7}

Also We know that

a^{-6} =\frac{1}{a^6}

So,

\frac{1}{x^2y^7}

8 0
3 years ago
What is the area of the trapezoid??
lawyer [7]
Area of trapezoid formula:
A = 1/2(b1 + b2) h
A = 1/2(2.4 + 9)(8.2)
A = 1/2(11.4)(8.2)
A = 46.74 ml^2
3 0
4 years ago
Out of 90 scientists who study dinosaurs, 30 study the T-Rex, 22 study the Brontosaurs and 10 study both. How many of this group
adell [148]

Answer:

it 152 u have to add 3 time like this

90+10+30+ it gives you 152

Step-by-step explanation:

hope this works or help

4 0
2 years ago
PLEASE HELP
muminat

o.83

Step-by-step explanation:

Conversion a mixed number 3 1/

4

to a improper fraction: 3 1/4 = 3 1/

4

= 3 · 4 + 1/

4

= 12 + 1/

4

= 13/

4

To find new numerator:

a) Multiply the whole number 3 by the denominator 4. Whole number 3 equally 3 * 4/

4

= 12/

4

b) Add the answer from previous step 12 to the numerator 1. New numerator is 12 + 1 = 13

c) Write a previous answer (new numerator 13) over the denominator 4.

Three and one quarter is thirteen quarters

Conversion a mixed number 2 1/

3

to a improper fraction: 2 1/3 = 2 1/

3

= 2 · 3 + 1/

3

= 6 + 1/

3

= 7/

3

To find new numerator:

a) Multiply the whole number 2 by the denominator 3. Whole number 2 equally 2 * 3/

3

= 6/

3

b) Add the answer from previous step 6 to the numerator 1. New numerator is 6 + 1 = 7

c) Write a previous answer (new numerator 7) over the denominator 3.

Two and one third is seven thirds

Add: 13/

4

+ 7/

3

= 13 · 3/

4 · 3

+ 7 · 4/

3 · 4

= 39/

12

+ 28/

12

= 39 + 28/

12

= 67/

12

5 0
3 years ago
Read 2 more answers
An experiment was performed on a 2kg block. Forces 5, 10, and 15 Newton's respectively were applied to the block for 5 seconds.
babymother [125]

Answer:

B) The final acceleration will triple between the first and third trial.

7 0
3 years ago
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