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Ket [755]
4 years ago
6

Find the product of (x + 7)2. x2 − 14x + 49 x2 + 14x + 49 x2 − 49 x2 + 49

Mathematics
2 answers:
Masteriza [31]4 years ago
5 0
X2+14x+49 Answer B is the correct answer
Ludmilka [50]4 years ago
3 0
(x+7)^2=x^2+2*7x+7^2=x^2+14x+49

(a+b)^2=a^2+2ab+b^2
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A statistic is said to be unbiased if
xxMikexx [17]

Answer:

A statistic is said to be unbiased if the mean of its sampling distribution is equal to the true value of the parameter being estimated.

Step-by-step explanation:

A parameter is a number that describes the population.  

A statistic is a number that describes a sample.  

A statistic used to estimate a parameter is unbiased if the mean of its sampling distribution is exactly equal to the true value of the parameter being estimated. For example, the mean of a sample is an unbiased estimate of the mean of the population from which the sample was drawn.

A statistic is biased if its expected value is not equal to the parameter.

8 0
3 years ago
Which of the following pairs is not correctly written in scientific notation
kow [346]
B in the answer <span>not correctly written in scientific notation</span>
4 0
3 years ago
Help me pls due tmrw
stiv31 [10]

( a )pairs of vertical angles :

AGB and EGD

Vertical angles are a pair of opposite angles formed by intersecting lines. Vertical angles are equal in magnitude.

( b ) a pair of adjacent angles :

AGB and BGC

Adjacent angles are two angles that have a common side and a common vertex (corner point) but do not overlap in any way.

(c) Name a pair if supplementary angles :

AGB and BGD

Two angles are called supplementary when their measures add up to 180 degrees.

(d) A pair of complementary angles :

AGF and FGE

Two angles are called complementary when their measures add to 90 degrees.

(e) Find measure of CGD :

( look into the photo attached for better understanding)

CGD = 55°

<em>hope this helps :)</em>

8 0
2 years ago
Let x represents the amount of a transaction and let f(x) represents the amount Isabel is charged for the transaction write a fu
Svetradugi [14.3K]

Answer:

f(x) = \frac{Px}{100}

Step-by-step explanation:

Let P% of the transaction amount is charged in the account.

So, if the transaction amount is x, then the charge for that transaction will be

\frac{ Px }{ 100 }.

Therefore, if f(x) represents the amount Isabel is charged for the transaction then we can write f(x) = \frac{ Px }{ 100 }, where P% is the rate of charge. ( Answer )

4 0
4 years ago
0.5 bigger than 9/18
aleksley [76]
No, 0.5 = 9/18.

9/18 can be simplified to 1/2, which is 0.5

Hope this helped! :)
7 0
4 years ago
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