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In-s [12.5K]
3 years ago
7

I need the answer ASAP please

Mathematics
1 answer:
BartSMP [9]3 years ago
4 0

Answer:

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Step-by-step explanation:

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Which number is rational?<br> GIVING OUT BRAINLIEST!!
mojhsa [17]

Answer:

The 4th option.

Step-by-step explanation:

Rational numbers are numbers which can be expressed as a fraction. Irrational numbers are numbers which can't be expressed as a fraction. Square root 16 is a perfect square so it is a rational number.

4 0
2 years ago
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Find the slope of the line that passes through (6, 6) and (3, 4).
77julia77 [94]

Answer:

The answer is \frac{2}{3}.

Step-by-step explanation:

The formula is supposed to be \frac{y2-y1}{x2-x1} or \frac{y1-y2}{x1-x2}, and if you do the math, the slope should be easy to solve.

8 0
2 years ago
Solve the equation and check the solution 16+x=42
tigry1 [53]
The answer would be: X=26
6 0
3 years ago
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How do you simplify cscx*secx-tanx?
kenny6666 [7]
Csc x · sec x - tan x = 
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5 0
3 years ago
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil
Fiesta28 [93]

Answer:

The sample has not met the required specification.

Step-by-step explanation:

As the average of the sample suggests that the true average penetration of the sample could be greater than the 50 mils established, we formulate our hypothesis as follow

H_0: The true average penetration is 50 mils

H_a: The true average penetration is > 50 mils

Since we are trying to see if the true average is greater than 50, this is a right-tailed test.

If the <em>level of confidence</em> is α = 0.05 then the z_\alpha score against we are comparing with, is 1.64 (this is because the area under the normal curve N(0;1) to the right of 1.64 is 0.05)

The z-score associated with this test is

z=\frac{\bar x-\mu}{s/\sqrt{n}}

where

\bar x = <em>mean of the sample</em>

\mu = <em>average established by the specification</em>

s = <em>standard deviation of the sample</em>

n = <em>size of the sample</em>

Computing this value of z we get z = 3.42

Since z >z_\alpha we can conclude that the sample has not met the required specification.

5 0
3 years ago
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