Ask question

Ask question

All categories

2 years ago

15

Astronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approxi

mately 5.88*10*10*10*10*10*10*10*10*10*10*10*10 light-years from Earth. In scientific notation, approximately how many miles is it?

1 answer:

Blababa [14]2 years ago

4 0

The earth is about 2.5578*10'13 miles

You might be interested in

An inequality for y greater than or equal to 4

zalisa [80]

The inequality statement, “An inequality for y greater than or equal to 4” can be written as:

y ≥ 4

Please mark my answers as the Brainliest if you find my explanations helpful :)

3 0

2 years ago

Read 2 more answers

If y=5x+6, then what is x in terms of y?

KATRIN_1 [288]

Answer:

x=y/5+6/5

Step-by-step explanation:

Add 6 to both sides of the equation.

5 x = y + 6

Divide each term by 5 and simplify.

x = y /5 + 6 /5

7 0

2 years ago

Read 2 more answers

Olympia ate lunch at a restaurant. The amount of her check was $6. 89. She left $8. 00 on the table, which included the amount s

Evgesh-ka [11]

Answer:

a.6.89 + t = 8.00

Step-by-step explanation: i took the quiz

6 0

1 year ago

You would like to know whether forwards in a basketball league average the same (or different) numbers of points than the overal

Akimi4 [234]

Answer:

The critical t-value for such a test given an alpha level of 0.05 is 2.26

Step-by-step explanation:

Null hypothesis : $H_0:\mu = 7.5$

Alternate hypothesis : $H_a:\mu \neq 7.5$

Population mean = $\mu = 7.5$

Data : 10, 9, 6, 11, 13, 14, 9, 9, 9, and 10

Mean = $\bar{x}=\frac{\text{Sum of all observations}}{\text{no. of observations}}$

Mean = $\frac{10+9+6+11+13+14+9+9+ 9+ 10}{10}$

Mean =10

Standard deviation : $\sqrt{\frac{\sum(x-\bar{x})^2}{n}}$

Standard deviation : $\sqrt{\frac{(10-10)^2+(9-10)^2+(6-10)^2+(11-10)^2+(13-10)^2+(14-10)^2+(9-10)^2+(9-10)^2+(9-10)^2+(10-10)^2}{10}}$

Standard deviation s :2.144

$t = \frac{x-\mu}{\frac{s}{\sqrt{n}}}t = \frac{10-7.5}{\frac{2.144}{\sqrt{10}}}t=3.687$

Df = n-1 = 10-1 = 9

T critical = $t_{(df,\alpha)}=t_(9,0.05)=2.26$

T calculated > T critical

So, We failed to accept null hypothesis

Hence the critical t-value for such a test given an alpha level of 0.05 is 2.26

5 0

2 years ago

Callie has 6 yards of green fabric and 4 yards of white fabric.Callie gives 24 inches of green fabric to her sister.How many fee

Mazyrski [523]

Answer:

16 ft

Step-by-step explanation:

Original length = 6 yd × 3 ft/1 yd = 18 ft

Gave away = 24 in × 1 ft/12 in = <u>2 ft </u>

Amount left = 18 ft – 2 ft = 16 ft

4 0

2 years ago