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3 years ago

Which expression is equivalent to −(4−3)?Which expression is equivalent to −(4−3)?

Mathematics

2 answers:

alina1380 [7]3 years ago

8 0

Answer: −22+3

Step-by-step explanation:

Reptile [31]3 years ago

4 0

Answer:

−22+3

Step-by-step explanation:

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Which one is a prime number?,11,21,51,

Lana71 [14]

11 is only divisible by 1 and 11, it is a prime number. 21 is visible by 1, 3, 7, and 21; not a prime number. 51 is divisble by 1, 3, 7, 17, and 51; not a prime number. 11 is the only prime number .

5 0

3 years ago

Read 2 more answers

In a sample of 679 new websites registered on the Internet, 42 were anonymous (i.e., they shielded their name and contact inform

Semmy [17]

Answer:

95% Confidence interval: (0.0429,0.0791)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 679

Number of anonymous websites, x = 42

$\hat{p} = \dfrac{x}{n} = \dfrac{42}{679} = 0.0618$

95% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96$

Putting the values, we get:

$0.0618\pm 1.96(\sqrt{\dfrac{0.0618(1-0.0618)}{679}}) = 0.0618\pm 0.0181\\\\=(0.0429,0.0791)$

is the required confidence interval for proportion of all new websites that were anonymous.

8 0

3 years ago

Is 16x+7 equivalent to 8(2x+9)-2

andrew-mc [135]

no beacuse when distributed it will be:

16x + 72 - 2

16x + 70

5 0

3 years ago

Read 2 more answers

professor190 [17]

Answer: d = √10

———

process:

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points:
(10,3) (7,2)

distance formula:
d = √( ( x2 - x1 )² + ( y2 - y1 )² )

———

d = √( ( 7 - 10 )² + ( 2 - 3 )² )

d = √( ( -3 )² + ( -1 )² )

d = √( 9 + 1 )

d = √10

5 0

3 years ago

Can someone answer this my quiz is due in 5 min

Brums [2.3K]

I am pretty much sertan that the answer is B. X = 9.

Hope this helps!!

6 0

3 years ago