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Jet001 [13]
2 years ago
13

What is 2-2+4? This is on my test and I am actually losing my mind lol

Mathematics
2 answers:
irina [24]2 years ago
5 0

Answer:

4

Step-by-step explanation:

what this is so easy what's good with your mental health

Scorpion4ik [409]2 years ago
5 0

Answer: its 4 my guy

Step-by-step explanation:

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The ratio of the number of boys to the number of girls in the math club is 4 to 3.
RoseWind [281]

Answer:

mathhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Step-by-step explanation:

mathhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

8 0
3 years ago
Omar had 7goldfish in his fish tank. He has 3 fewer redfish than goldfish in his tank. Omar also has 8 more black fish than gold
Mazyrski [523]

Answer:

Omar has 27 fish in all.

Step-by-step explanation:

Goldfish: OOOOOOO

Redfish: 7-3=4 OOOO

Black fish: 7+8=15 OOOOOOOOOOOOOOO

Add all of those and you get this many:

OOOOOOOOOOOOOOOOOOOOOOOOOO=27

Hope this helped lots and lots,

sincerely, me

7 0
3 years ago
Read 2 more answers
Which statement is true of the function f(x) = Negative RootIndex 3 StartRoot x EndRoot? Select three options.
ycow [4]

Answer:

Options (2), (3) and (4) are correct.

Step-by-step explanation:

The given function is f(x) = -\sqrt[3]{x}

1). First derivative of the function = f'(x) = \frac{d}{dx}(-\sqrt[3]{x} )

  f'(x) = -\frac{1}{3}(x)^{-\frac{2}{3}}

  Since derivative is negative, function will be decreasing everywhere.

  Therefore, Option (1) is incorrect.

2). Since value of the function is true for every value of all real values of x.

  Domain of the function is (-∞, ∞).

  Therefore, Option (2) is correct.

3). For the given domain, range of the function will be all real values of y Or (-∞, ∞)

  Therefore, Option (3) is correct.

4). Function 'f' when reflected across x axis, equation of the reflected function will be g(x) = \sqrt[3]{x}.

 Therefore, Option (4) is correct.

5). For a point (3, -27),

  -27 = -\sqrt[3]{3}

  Therefore, Option (5) is incorrect.

8 0
3 years ago
The CEO of a large electric utility claims that more than 75 percent of his customers are very satisfied with the service they r
vichka [17]

Answer:

z=\frac{0.77-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}=0.462  

Now we can find the p value using the alternative hypothesis with this probability:

p_v =P(z>0.462)=0.322  

Since the p value is large enough, we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%

Step-by-step explanation:

Information provided

n=100 represent the random sample selected

\hat p=0.77 estimated proportion of students that are satisfied

is the value that we want to test

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to verify if more than 75 percent of his customers are very satisfied with the service they receive, then the system of hypothesis is.:  

Null hypothesis:p\leq 0.75  

Alternative hypothesis:p > 0.75  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.77-0.75}{\sqrt{\frac{0.75(1-0.75)}{100}}}=0.462  

Now we can find the p value using the alternative hypothesis with this probability:

p_v =P(z>0.462)=0.322  

Since the p value is large enough we have evidence to conclude that the true proportion for this case is NOT significanctly higher than 0.75 since we FAIL to reject the null hypothesis at any significance level lower than 30%

4 0
3 years ago
Which equation is a linear function y = 2/x + 3 y = x/2 - 5 y = 2 ^ z - 1 y = x ^ 2 + 7
stich3 [128]

Answer:

hello how do i work this app im new

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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