Ask question

Ask question

All categories

3 years ago

6

Xiao bought 4 3/10 gallons of gas that cost $2.50 per gallon.

1 answer:

Ratling [72]3 years ago

3 0

Answer:

maybe the attached image is helpful

You might be interested in

Need help with this question for geometry

Anna007 [38]

Answer:

$31$

Step-by-step explanation:

It's 31 degrees, I hope it is the right answer

4 0

2 years ago

Damon has 5 dimes and some nickels in his pocket worth a total of $1.20. To find the number of nickels Damon has, a student wrot

ki77a [65]

In the student's equation, there are many problems. Nickels are worth 5 cents, represented by .05, not 50 dollars. Also, the coeffient 5 should not be placed there, it belongs with 5(.1), as we already know how many dimes there are. If we were able to make a new one, it would be, 5(.1)+.05n=1.20.

4 0

3 years ago

I need help! This is due in 30 minutes!!!

slavikrds [6]

Answer:

b = 33°

Step-by-step explanation:

A full circle is 360°.

360° - 296° - 31° = b

360° - 296° - 31° = 33°

4 0

3 years ago

Read 2 more answers

A company manufactures 2,000 units of its flagship product in a day. The quality control department takes a random sample of 40

shepuryov [24]

Answer:

B

Step-by-step explanation:

The recommended sample size n for point estimates is:

n = NX / (N + X - 1)

where N is the population size, and X is defined as:

X = Z² p (1 - p) / E²

where Z is the critical value, p is the sample proportion, and E is the margin of error.

Assume a confidence level of level of 95% and a margin of error of 5%.

α = 0.05, Z(α/2) = 1.96

E = 0.05

Of the 40 units tested, 2 had lifespans less than 26 days. So the proportion is:

p = 2/40 = 0.05

Therefore:

X = (1.96)² (0.05) (1 - 0.05) / (0.05)²

X = 73

Given N = 2000:

n = (2000) (73) / (2000 + 73 - 1)

n = 70.45

Rounding, the recommended sample size is 70.

5 0

4 years ago

Read 2 more answers

Find the value of x and the value of y. 60 30 6

allochka39001 [22]

Answer:

The longest side, which is the opposite side of a right angle is the hypotenuse ( h ).

The opposite is the side opposite the angle involved and it is called the Perpendicular ( p ) .

The adjacent is the side next to the angle involved ( but not the hypotenuse ) and it is called the base ( b )

$\large{ \tt{❃ \: TAKING \: \angle \: \: A \: AS \: A \: ANGLE \: OF \: REFERENCE : }}$

Here , Perpendicular ( p ) = 6 , hypotenuse = y and now we're going to find the value of y first : We know :

$\large{ \tt{❁ \: sin \: 60 \degree = \frac{perpendicular}{hypotenuse} }}$

$\large{ \tt{➝ \: \frac{ \sqrt{3} }{2} = \frac{6}{y} }}$

$\large{ \tt{➝ \sqrt{3}y = 6 \times 2 }}$

$\large{ \tt{➝ \: \sqrt{3} \: y = 12 }}$

$\large{ \tt{➝ \: y= \frac{12}{ \sqrt{ 3} } }}$

$\boxed{ \large{ \tt{➝ y = \: 4 \sqrt{3} }}}$

$\large{ \tt{❇ \: TAKING \: \angle \: B \: AS \: THE \: ANGLE \: OF \: REFERENCE}} :$

Here - Perpendicular ( p ) = x , hypotenuse = y = 4 √ 3 and Now , we're gonna find the value of x :

$\large{ \tt{❊ \: sin \: 30 \degree = \frac{perpendicular}{hypotenuse} }}$

$\large{ \tt{⟶ \: \frac{1}{2} = \frac{x}{4 \sqrt{3} } }}$

$\large{ \tt{⟶ \: 2x = 4 \sqrt{3} }}$

$\large{ \tt{⟶ \: x = \frac{4 \sqrt{3} }{2} }}$

$\boxed{\large{ \tt{⟶ \: x = 2 \sqrt{3} }}}$

$\boxed{ \large{ \tt{❈ \: OUR \: FINAL \: ANSWER : \boxed{ \tt \: x = 2 \sqrt{3} \: \: y = 4 \sqrt{3} }✓}}}$

And we're done! Hope I helped! Let me know if you have any questions regarding my answer and also notify me , if you need any other help ! :)

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

3 0

3 years ago