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Leviafan [203]
3 years ago
10

Factor this expression as a difference of squares: 4-(2a+3b)^2

Mathematics
1 answer:
Nadya [2.5K]3 years ago
7 0
The complete factorized expression is (2 + 2a + 3b) (2 - 2a + 3b).
Take a look at the attachment to see how I got this solution. 

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Negative 2 multiply to blank equal negative fourteen
mel-nik [20]

Answer:

7

Step-by-step explanation:

-2 x _ = -14

2(7)=14

(-)x(-) = +

-2(7)=-14

4 0
3 years ago
Listed below are amounts (in millions of dollars) collected from parking meters by a security company in a certain city. A large
irina1246 [14]

Answer:

The correct options are;

B) The mean and median for the security company are both lower than the mean and the median for the collections performed by other companies

B) Since the security company appear to have collected lower revenue than other companies, there is some evidence of stealing by the security company's employees

Step-by-step explanation:

We use the acronym SC for the security company and OC for the other company

SC OC

1.6 1.5

1.8 2.1

1.6 1.9

1.8 2.2

1.7 1.9

1.2 1.7

1.1 2.1

1.2 2.2

1.2 2.2

1.5 1.8

∑x    14.7   19.6

The mean is given by  ∑x/n

n = 10

               SC        OC

∴ Mean 1.47      1.96

The median is the \frac{n + 1}{n} th  \ term

Hence

               SC         OC

Median 1.55         2

Therefore, the mean and median for the security company are both lower than the mean and the median for the collections performed by other companies.

b) Since the security company appear to have collected lower revenue than other companies, there is some evidence of stealing by the security company's employees.

8 0
3 years ago
PLS HELP ME !!!!! i am terrible at maths.
AlekseyPX

Answer:

b

Step-by-step explanation:

4 0
3 years ago
What is 1 and 1/2% of 400?
aniked [119]
\bf {{ a}}\%\ of\ b \implies  \cfrac{{{ a}}}{100}\cdot b\implies {{ a}}\div 100\cdot b\\\\
-----------------------------\\\\
thus
\\\\

\begin{cases}
{{ 1}}\%\ of\ 400 \implies  \cfrac{{{ 1}}}{100}\cdot 400\implies {{1}}\div 100\cdot 400\\
--------------\\
{{ \frac{1}{2}}}\%\ of\ 400 \implies  \cfrac{{{ \frac{1}{2}}}}{100}\cdot 400\implies {{\frac{1}{2}}}\div 100\cdot 400
\end{cases}

you tell us
3 0
3 years ago
Which number is a factor of 13?
ioda
13 is a prime number so its only factors are 1 and 13
7 0
3 years ago
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