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notsponge [240]
2 years ago
15

Please help I’ll give points + brainalist

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
4 0
A because it has the biggest number when put from least to greatest that repeats
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Solve the equation, and check the solutions 2(√x+3)=6.
zhannawk [14.2K]

Answer:

x = 0

Step-by-step explanation:

2(\sqrt{x}+3)=6

Expanding the left hand side we get

\Rightarrow 2\sqrt{x}+6=6

Taking 6 from left hand side to right hand side

\Rightarrow 2\sqrt{x}=6-6\\\Rightarrow 2\sqrt{x}=0

Dividing both sides by 2

\Rightarrow \sqrt{x}=\frac{0}{2}\\\Rightarrow \sqrt{x}=0\\\Rightarrow x=0

So, x = 0

4 0
3 years ago
The expression 3 x 7 - 4x8+2 is equivalent to which of the following?
ELEN [110]
Answer: b

explanation: only choice B equals -9 like the given equation.
8 0
3 years ago
3. In the figure, c || d. What are the measures<br> of 1 and 2
dem82 [27]

Answer:

1: 105 degrees

2: 75 degrees

Step-by-step explanation:

2 is a corresponding angle with 75.

1 is supplementary so  x+75 = 180

x=105

5 0
3 years ago
A new medical test provides a false positive result for hepatitis 2% of the time that is a perfectly healthy subject being teste
Oxana [17]
Given that X <span>be the number of subjects who test positive for the disease out of the 30 healthy subjects used for the test.

The probability of success, i.e. the probability that a healthy subject tests positive is given as 2% = 0.02


Part A:

</span><span>The probability that all 30 subjects will appropriately test as not being infected, that is the probability that none of the healthy subjects will test positive is given by:

</span>P(X)={ ^nC_xp^x(1-p)^{n-x}} \\  \\ P(0)={ ^{30}C_0(0.02)^0(1-0.02)^{30-0}} \\  \\ =1(1)(0.98)^{30}=0.5455
<span>

Part B:

The mean of a binomial distribution is given by

</span>\mu=np \\  \\ =30(0.02) \\  \\ =0.6
<span>
The standard deviation is given by:

</span>\sigma=\sqrt{np(1-p)} \\ \\ =\sqrt{30(0.02)(1-0.02)} \\ \\ =\sqrt{30(0.02)(0.98)}=\sqrt{0.588} \\  \\ =0.7668
<span>

Part C:

This test will not be a trusted test in the field of medicine as it has a standard deviation higher than the mean. The testing method will not be consistent in determining the infection of hepatitis.</span>
5 0
3 years ago
If water and oil are combined in a container, the resulting liquid is a(n)
xenn [34]
<span>If water and oil are combined in a container, the resulting liquid is a(n) C) emulsion

Hope I helped:P</span>
3 0
3 years ago
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