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4 years ago

Which expression is equal to 6rs^9/42r^5s^2

1 answer:

6 0

$\dfrac{6rs^9}{42r^5s^2}=\dfrac{6}{42}\cdot\dfrac{r}{r^5}\cdot\dfrac{s^9}{s^2}=\dfrac{1}{7}\cdot\dfrac{1}{r^4}\cdot\dfrac{s^7}{1}=\boxed{\dfrac{s^7}{7r^4}}$

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What is 72 ÷ 8 + 4y3 when y = 3?

bekas [8.4K]

Answer:

117

Step-by-step explanation:

Given

72 ÷ 8 + 4y³ with y = 3, substitute y = 3 into the expression

= 72 ÷ 8 + 4 × 3³ ← evaluate exponent

= 72 ÷ 8 + 4 × 27 ← evaluate division and multiplication

= 9 + 108 ← calculate addition

= 117

6 0

3 years ago

Plz help find the value of x

gayaneshka [121]

Answer:

$x^{\circ}=70^{\circ}$

Step-by-step explanation:

Lines MR and PQ are parallel. Continue the line MR up to the intersection with the line NQ. Denote the point of their intersection as A.

Consider triangle AMN. In this triangle,

$m\angle ANM=40^{\circ}$ - given;
$m\angle NMA=180^{\circ }-150^{\circ}=30^{\circ}$ - angles RMN and NMA are supplementary angles;

So, (as the sum of all interior angles add up to 180°)

$m\angle NAM=180^{\circ}-40^{\circ}-30^{\circ}=110^{\circ}$

Angles NAM and MAQ are supplementary angles, then

$m\angle MAQ = 180^{\circ}-110^{\circ}=70^{\circ}$

Angles MAQ and AQP are alternate interior angles, so they are congruant and

$x^{\circ}=70^{\circ}$

6 0

3 years ago

What greater than 476 and less than 598

hichkok12 [17]

597 I’m pretty sure

7 0

3 years ago

Read 2 more answers

Which expression uses the greatest common factor and the distributive property to rewrite the sum 7 + 75

Lady_Fox [76]

Answer:

$75 + 45$ $= 15(3 + 5)$

Step-by-step explanation:

Given

$75 + 45$ -- Corrected

Required

Use the GCF to write it as a distributive property

First, we find the GCF of 75 and 45

$45 = 3 * 3 * 5$

$75 = 3 * 5 * 5$

The common factor is:

$GCF = 3 * 5$

$GCF = 15$

So, $75 + 45$ becomes

$75 + 45$ $= 15 * 3 + 15 * 5$

Factorize

$75 + 45$ $= 15(3 + 5)$

Hence, the sum has been rewritten as $15(3 + 5)$

5 0

3 years ago

The price of apples went from $0.30 per lb to $0.90 per lb in three years. Find the rate of change of the price of apples.

Elanso [62]

Answer:

Step-by-step explanation:

You have to do change of y over change of x, substitute the numbers to get 0.30-0.90 for y then 1-3 for x, get -0.06/-2 and solve that to get 0.3 per pound per year, which is answer C

3 0

4 years ago

Read 2 more answers