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Delvig [45]
3 years ago
9

If it takes 4/5 of an hour to fill 1/2 tank how many tanks can be filled in an hour?

Mathematics
1 answer:
vitfil [10]3 years ago
8 0

Answer:

The answer for your problem is  0.625

Step-by-step explanation:

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If x is a positive integer and y is a negative integer than x + y is a rational number.
romanna [79]

Answer:

Yes

Step-by-step explanation:

An integer is a whole number so if x is positive and y is negative then the equation would just be x plus negative y. But x+-y is an odd equation so the simplified version is x-y so it is a rational number, since a rational number is a number that can be rewritten as a simple fraction.

5 0
3 years ago
I need help with my math homework
adoni [48]

Answer:

96.52 centimeters

Step-by-step explanation:

1 inch is equal to 2.54 centimeters

38 inches = 38*2.54 cm

38 * 2.54 = 96.52

The answer is 96.52 centimeters

Hope this helps :)

Have a great day

8 0
3 years ago
Read 2 more answers
Which of these values for the number of yards in a mile is most accurate, when compared to the exact value?
Bogdan [553]
It would be D-1,755 because there are 1,760 yards in a mile exactly. Have a good day!
5 0
3 years ago
In a manufacturing process a random sample of 9 bolts manufactured has a mean length of 3 inches with a standard deviation of .3
Serggg [28]

Answer:

The correct option is (C) (2.769, 3.231).

Step-by-step explanation:

The confidence interval for mean when the standard deviation is not known is:

CI=\bar x\pm t_{\alpha/2, (n-1)}\frac{s}{\sqrt{n}}

Given:

\bar x = 3\\s=0.3\\n=9\\\alpha =1-0.95=0.05

Compute the critical value as follows:

t_{\alpha/2, (n-1)}=t_{0.05/2, (9-1)}=t_{0.025, 8}=2.31

**Use a <em>t</em>-table.

The 95% confidence interval for true mean length of the bolt is:

CI=\bar x\pm t_{\alpha/2, (n-1)}\frac{s}{\sqrt{n}}\\=3\pm 2.31\times \frac{0.30}{\sqrt{9}}\\ =3\pm 0.231\\=(2.769, 3.231)

Thus, the 95% confidence interval for true mean length of the bolt is (2.769, 3.231).

The correct option is (C).

7 0
3 years ago
Multiply the polynomials
valkas [14]

Answer:

the fourth one is the answer

15x^5 + 12x^4

you multiply the coefficients and add the exponents

8 0
3 years ago
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