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3 years ago

How can you use factoring to solve these three problems?

Mathematics

1 answer:

torisob [31]3 years ago

3 0

You're meant to make one side of the equation equal 0.
For example, the first problem is $2k x^{2}$ + 9k = -7
You'd add 7 to both sides, leaving you with $2k x^{2}$ + 9k +7 =0
And I assume you know how to factor??

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Julius has three times as many stamps in his collection as his freinds liam and mario combined. Liam has 10 stamps in his collec

UNO [17]

Answer:

Mario has 19 stickers.

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3 years ago

Can MP3 player is about 1 3/4 inches long

Nady [450]

Answer:

It is in between 1 and 2 inches.

Step-by-step explanation:

The number 1 3/4 can also be written as 1.75. This number is more than 1, but still smaller than 2

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3 years ago

Montraie has a coin collection. He keeps 10 of the coins in his box, which is 20% of the collection. How many total coins are in

jek_recluse [69]

By definition of percentages, we conclude that Montraie has 10 coins saved in his box that come from a collection with a total of 50 coins.

<h3>How to calculate the quantity of coins in a collection</h3>

In this question we know the quantity of coins in a box and such coins are part of the <em>coin</em> collection. By definition of percentage we have the <em>total</em> quantity of coins in the collection:

x = 10*(100/20)

x = 50

By definition of percentages, we conclude that Montraie has 10 coins saved in his box that come from a collection with a total of 50 coins.

To learn more on percentages: brainly.com/question/13450942

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2 years ago

What’s the right answer

Dmitry_Shevchenko [17]

Answer: Variant D

Step-by-step explanation:

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3 years ago

Given that c = 2πr<br>a. find c when π= 3.142 and r=50<br>b.find r when c=286 and π=31/7

Aleks04 [339]

Step-by-step explanation:

a.c=2πr

c=2x3.142x50

c=100x3.142

c=0.03142

b.c=2πr

286=2x31/7xr

286=62r/7

286x7=62r

2002=62r

2002/62=r

32.3=r

r=32.3

6 0

4 years ago