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melomori [17]
3 years ago
8

Expand: (3x + 4)(2x − 5)

Mathematics
1 answer:
BARSIC [14]3 years ago
8 0

Answer:

6x² - 7x - 20

Step-by-step explanation:

Use the so-called "FOIL" method of multiplying binomials:

First terms:  3x · 2x = 6x²

Outer terms:  3x · -5 = -15

Inner terms:  4 · 2x = 8 x

Last terms:  4 · -5 = -20

Then, after simplifying, we have 6x² - 7x - 20 (second answer choice)

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a scout meeting lasts 2 hours. if 36 minutes was spent on making dream catchers, what percentage of the meeting is left
Llana [10]

Answer:

70% of the meeting is left.

Step-by-step explanation:

Hi, to answer this question, first, we have to convert the hours to minutes.

Since 1 hour = 60 minutes

For 2 hours:

1 /60 = 2/x

x = 2 (60)

x = 120 minutes

So, a scout meeting last 120 minutes (2 hours)

36 minutes already spent.

120-36 = 84 minutes left

So, if 120 is the 100% of the meeting, for 84 minutes:

120/100 = 84/x

1.2 =84/x

x = 84/1.2

x = 70%

70% of the meeting is left.

8 0
3 years ago
Divide: 2/3 4/5<br> plz help me
HACTEHA [7]

Answer:

5/6

Step-by-step explanation:

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2 years ago
Stans steak house has a server to cook ratio of 5 to 2.The total number of servers and cooks is 42. How many servers does Stans
aivan3 [116]

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Step-by-step explanation:

5+2 = 7

42/7 = 6 sets of employees

5*6 = 30 servers

3 0
3 years ago
Find the next four terms in the arithmetic sequence. a - 6, a - 2, a + 2, ...
labwork [276]
The next four terms in the sequence are a + 6, a + 10, a + 14, a + 18. This is because you are adding 4 to what is being done to “a” each time. If you look at the pattern, you’ll see that 4 is being added and the “a” stays the same.
5 0
3 years ago
Which of the following expressions is correctly written in scientific notation?
valentinak56 [21]

Answer: D is correctly written in scientific notation.

Step-by-step explanation:

The base has to be between 1 and 10.

A has a base of 16.4 which is greater than 9.

B is not even in scientific because the base it being raise to an exponent

C has 0.71 as base which is less that.

3 0
3 years ago
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