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jarptica [38.1K]
3 years ago
13

Factor the following equation 2n2 -n -45​

Mathematics
1 answer:
Genrish500 [490]3 years ago
7 0

Answer:

( n − 5 ) ( 2 n + 9 )

Step-by-step explanation:

Factor by grouping

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Olin [163]

Answer:

$33

Step-by-step explanation:

Since 9 pies is 27 dollars that means you have to divide 27 by 9 to find out what 1 pie costs

1 pie ends cause costing $3

now you multiply the cost for 1 pie and 11 so it comes out to be $33

4 0
3 years ago
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In a certain town, 22% of voters favor a given ballot measure. for groups of 21 voters, find the variance for the number who fav
Galina-37 [17]
<span>c. 4.6
       
21 X .22= 4.6
       
Calculating the variance requires finding the product of 21 and 22%. To make this easier we convert 22% into it's decimal form and construct the equation. To back check this answer we can use 10% of 21 voters which equals 2.1% then double that amount to reach 4.2%, knowing that we now have a close approximation of the variance we can eliminate answers a, b, and d, leaving c as the only logical choice.</span>
5 0
3 years ago
Imagine your playing a game, you are currently level 5 and it takes 55 EXP to level up to level 6, each battle you fight you gai
sattari [20]

Step-by-step explanation:

55 / 3 = 18.333.

Since it is a decimal, we round up to the nearest whole number.

It will take at least 19 battles to level up.

7 0
3 years ago
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Which figure shows an example of symmetry?<br> A.<br> B.<br> C.<br> D.
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Answer:

D

Step-by-step explanat:

7 0
3 years ago
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How do you find the length of each leg of an isosceles right triangle whose hypotenuse is 4 cm?
allsm [11]

The length of hypotenuse of an isosceles right triangle with two equal legs each 4 cm is given by Pythagorean theorem as follows.

√42+42.

=√32.

=4√2.

4√2 cm.

6 0
3 years ago
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