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malfutka [58]
3 years ago
8

How do you do this function (5a - 6)(2a - 1)

Mathematics
1 answer:
Studentka2010 [4]3 years ago
7 0

Answer:

10a² - 17a + 6

Step-by-step explanation:

Given

(5a - 6)(2a - 1)

Each term in the second factor is multiplied by each term in the first factor, that is

5a(2a - 1) - 6(2a - 1) ← distribute both parenthesis

= 10a² - 5a - 12a + 6 ← collect like terms

= 10a² - 17a + 6 ← in expanded form

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It takes 113 pounds of seed to completely plant a 12 -acre field. how many acres can be planted per pound of seed?
svp [43]
The answer is <span>0.10619469026. 

It takes about 9lbs of seed to plant 1-acre, so to find the answer divide 12/113 and you get how many acres 1lb of seed could cover.

Hope this helps :-)

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3 0
3 years ago
Write a paragraph comparing the two classes' semester grades. Be sure to compare the extremes, the quartiles, the medians, and t
Gnom [1K]

Answer:

Second class have higher marks and greater spread.

Step-by-step explanation:

First box plot  represents class first. From the first box plot, we get

\text{Minimum value }= 53,Q_1=62,Median=80,Q_3=86,\text{Maximum value }= 89

Range=Maximum-Minimum=89-53=36

IQR=Q_3-Q-1=86-62=24

Second box plot  represents class second. From the second box plot, we get

\text{Minimum value }= 56,Q_1=62,Median=74,Q_3=89,\text{Maximum value }= 96

Range=Maximum-Minimum=96-56=40

IQR=Q_3-Q-1=89-62=27

First class has greater minimum value, first quartile of both classes are same, second class has greater median, first class has greater third quartile and first class has greater maximum value. It means second class have higher marks but class first have less variation.

Second class has greater range and greater inter quartile range. It means data of second class has greater spread.

Therefore, second class have higher marks and greater spread.

3 0
3 years ago
At a restaurant, Brianna and Naomi each order an appetizer for $6.50 and an entree for $9.75. The sales tax is $0.98 and they le
laila [671]

Given :

At a restaurant, Brianna and Naomi each order an appetizer for $6.50 and an entree for $9.75.  

The sales tax is $0.98 and they leave a tip of $5.85.

To Find :

How much did Brianna and Naomi spend in all.

Solution :

Total expenses, T = Food + tax + tip

T = $( 6.50+9.75) + $0.98 + $5.85

T = $( 16.25 + 0.98 + 5.85 )

T = $23.08

Therefore, total expenses is $23.08 .

Hence, this is the required solution.

7 0
3 years ago
Xavier said that the recursive formula for this sequence could
Sergeeva-Olga [200]

Answer

The answer is in the step by step explanation

Step-by-step explanation:

YOU ARE LAZY TO FIND AN ANSWER ON YOUR OWN SO GET OUT OF HERE CHEATING LIL KID

7 0
3 years ago
What do you say when someone threatens you
wolverine [178]
You say you’re going to the police
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3 years ago
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