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Crazy boy [7]
2 years ago
9

Evaluate the expression: -a^2 + c(a-c) - n^2 a= -3 c= -2 n= 3

Mathematics
1 answer:
Travka [436]2 years ago
7 0

Answer: -a^2+c\left(a-c\right)-n^2a=3\quad :\quad c=-\frac{-a+\sqrt{-3a^2-4an^2-12}}{2},\:c=-\frac{-a-\sqrt{-3a^2-4an^2-12}}{2}

Step-by-step explanation: YW! plese mark branlest!

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What is 6 3/4 as an improper fraction
Kobotan [32]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Improper fractions are sometimes called 'top heavy fractions'

You'll see why below

Multiply 6 by 4:

6 x 4 = 24

Add 3 :

24 + 3 = 27

The improper fraction would be 27/4

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

8 0
3 years ago
Read 2 more answers
Assume that an opinion poll conducted in a 1998 congressional race found that on election eve, 54% of the voters supported Congr
In-s [12.5K]

Answer:

Congressman Smith will defeat Challenger Jones

Step-by-step explanation:

Since the poll has a +/- 3% margin of error, the minimum and maximum possible percentages for each candidate are:

(44% - 3%) ≤ Jones ≤ (44% + 3%)

41% ≤ Jones ≤ 47%

(54% - 3%) ≤ Smith ≤ (54% + 3%)

51% ≤ Smith ≤ 57%

This means that, even in the worst possible scenario for Congressman Smith, he would still beat Jones with 51% against 47% of the votes. The pollster can safely predict that Congressman Smith will defeat Challenger Jones .

5 0
3 years ago
Solve for x. -5x + 13 = -17
Lana71 [14]

Subtract 13 from both sides

-5x = -17 - 13

Simplify -17 - 13 to -30

-5x = -30

Divide both sides by -5

x = -30/-5

Two negatives make a positive

x = 30/5

Simplify 30/5 to 6

<u>x = 6</u>

7 0
3 years ago
Read 2 more answers
I need help ASAP!! I am giving brainiest to whoever can answer the question first AND correctly
umka21 [38]

Answer:

c

Step-by-step explanation:

I think since am still in secondary school

it's should be (x-4)(x-4)

3 0
3 years ago
What is the area of this figure? 7 km 6 km 12 km 4 km 4 km 5 km 3 km 3 km​
aleksandrvk [35]

Answer:

105.5664, or 93 + 4 pi

Step-by-step explanation:

84 + 9 + 4 pi

equals 105.5664, or 93 + 4 pi

Break the shape into common shapes.

12 times 7 (rectangle) = 84

3 times 3 (square) = 9

7 0
3 years ago
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