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3 years ago

Evaluate the expression, if x = 12, y = 8, and z = 3. 5y +

Mathematics

1 answer:

enyata [817]3 years ago

6 0

The correct answer is 44

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NEED HELP WITH THESE QUESTIONS

amm1812

For this case we must solve the following questions:

Question 1:

We should simplify the following expression:

$\frac {\frac {m ^ 2 * n ^ 3} {p ^ 3}} {\frac {mp} {n ^ 2}} =$

Applying double C we have:

$\frac {m ^ 2 * n ^ 3 * n ^ 2} {mp * p ^ 3} =$

By definition of multiplication of powers of the same base we have to place the same base and add the exponents: $\frac {m ^ 2 * n ^ 5} {m * p ^ 4} =$

Canceling common terms:

$\frac {mn ^ 5} {p ^ 4}$

Answer:

Option A

Question 2:

We should simplify the following expression:

$\frac {3xyz ^ 2} {6y ^ 4} * \frac {2y} {xz ^ 4}$

So, we have:

$\frac {3xyz ^ 2 * 2y} {6y ^ 4 * xz ^ 4} =\\\frac {6xy ^ 2z ^ 2} {6y ^ 4xz ^ 4} =$

Simplifying common terms:

$\frac {1} {y ^ 2z ^ 2}$

Answer:

Option D

Question 3:

We factor the following expressions to rewrite the experience:

$r ^ 2 + 7r + 10$ : We look for two numbers that multiplied give 10 and added 7:

$(r + 5) (r + 2)$

$r ^ 2-5r-50:$ We look for two numbers that multiplied give -50 and added -5:

$(r-10) (r + 5)$

$3r-30 = 3 (r-10)$

Rewriting the given expression we have:

$\frac {(r + 5) (r + 2) * 3 (r-10)} {3 (r-10) (r + 5)} =$

We simplify common terms in the numerator and denominator we have:

$(r + 2)$

Answer:

Option D

4 0

3 years ago

Read 2 more answers

SUBTRACT

antiseptic1488 [7]

Answer:

$-3x^{4} + 3{x}^{3} + 8{x}^{2}- 2x - 5$

Step-by-step explanation:

To avoid confusion, distribute the negative amongst all terms in the second set of parentheses.

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.

3 0

3 years ago

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State the conditions that the following graph meets. (Enter the equation or inequality that is shown by the graph.)

shutvik [7]

The graph shows a horizontal line intersecting (0, 2).

Your answer is: y = 2.

7 0

3 years ago

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will associative property work for 4(m+3+5m)? if so show how it will look like after you use associative property

Roman55 [17]

It would be like 4m+12+20m

4 0

4 years ago

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A bicyclist travels at a constant speed of 18 mi/h. How long does it take the bicyclist to travel 90 mi

Stells [14]

If the bicyclists is traveling 18 miles every hour and needs to travel a sum of 90 miles, you need to divide 90/18 equaling the total time (in hours) needed to travel 90 miles. Hope this helps

6 0

3 years ago

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Evaluate the expression, if x = 12, y = 8, and z = 3. 5y +​

Evaluate the expression, if x = 12, y = 8, and z = 3. 5y +