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Brrunno [24]
3 years ago
14

4.(-x 4 + 13x 5 + 6x 3 ) + (6x 3 + 5x 5 + 7x4)

Mathematics
1 answer:
grigory [225]3 years ago
3 0

Answer:

140

Step-by-step explanation:

=(-4+55+18)+(18+25+28)

=69+71

=140

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Find the circumference of a circle with a diameter of 6 cm. Leave your answer in terms of pi
irinina [24]
<h2>6 π cm</h2><h2>-------------------------------</h2>

<u>Step-by-step explanation:</u>

diameter = 6cm

radius = diameter ÷ 2

= 6 ÷ 2

= 3cm

circumference = 2π × radius

= 2 π × 3cm

= 3π cm

<h2>-----------------------------</h2><h2>FOLLOW ME</h2>
7 0
3 years ago
Which of the following is the product of the rational expressions shown below? 7x/x-4•x/x+7
LiRa [457]
<h2>The product of the rational expressions \dfrac{7x}{x-4}.\dfrac{x}{x+7} = \dfrac{7x^2}{x^2+3x-28}</h2>

Step-by-step explanation:

We have,

\dfrac{7x}{x-4}.\dfrac{x}{x+7}

To find, the product of the rational expressions \dfrac{7x}{x-4}.\dfrac{x}{x+7} = ?

∴ \dfrac{7x}{x-4}.\dfrac{x}{x+7}

= \dfrac{7x.x}{(x-4)(x+7)}

= \dfrac{7x^2}{(x(x+7)-4(x+7)}

= \dfrac{7x^2}{x^2+7x-4x-28}

= \dfrac{7x^2}{x^2+3x-28}

Thus, the product of the rational expressions \dfrac{7x}{x-4}.\dfrac{x}{x+7} = \dfrac{7x^2}{x^2+3x-28}

5 0
3 years ago
Denise is making bean bags. She has 6.4 pounds of beans.
dezoksy [38]

Answer:

a) she be able to make 8 bags

b) she can make 16 bags.

Step-by-step explanation:

According to the exercise info Denise has 6.4 pounds of beans

<u>Solving question a </u>

 ⇒  if she makes each bean bag of 0.8 pounds and she has 6.4 pounds of beans, we can express this by using the three simply rule she needs to puts 6.4 pounds of beans in x quantity of bags of 0.8 pouns, so doing the division: 6. 4 pounds of beans / 0.8 pounds of beans per bag= 8 bags of 0.8 pounds of beans.

B- If she decides to make mini bean bags that are half as heave as the ohers bags, so now Denise is going to make bags of 0.8/2 = 0.4 pounds.

Doing the same procedure as question a, we can say that she has 6.4 pounds of beans and she needed to put these amount in a x quantity of 04 pounds bags. Doing the following division ⇒ 6.4 pounds of beans/ 0.4 pounds of beans per bag= 16 bags

 In conclusion she is going to make 16 bags of 0.4 pounds of beans.

 

5 0
3 years ago
The sum of two numbers is 120. Three times
alexgriva [62]

Answer:

The answer is 68 and 52

Step-by-step explanation:

x + y = 120

3(x - y ) = 48

We have 3x + 3y = 360

and 3x - 3y = 48

Adding we have the following:

6x = 408

x = 68

y = 120-48 = 52

6 0
3 years ago
An analogy is a type of
vodomira [7]
Answer: literal language
hope this helps :)
3 0
3 years ago
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