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3 years ago

The distance from Earth to the moon is 384,400 kilometers. What is this distance expressed in scientific notation?

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

4 0

Answer:

3.844 x 10 to the power of 5 is the answer i think

Step-by-step explanation:

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Fantom [35]

Answer:

C 109

Step-by-step explanation:

First add all the known angles inside the triangle first to get 109°

Then since all angles in a triangle add to 180°

you take away 109 from 180 so

180-109 which equals 71

Then since all angles on a straight line add up to 180°

you take 71 from 180 so

180-71 = 109

so x = 109°

8 0

1 year ago

A newspaper article states that 90% of drivers in Iowa wear their seatbelt. Suppose we are interested in estimating the proporti

konstantin123 [22]

Answer:

The sample size is $n = 3457$

Step-by-step explanation:

From the we are told that

The population proportion is p = 0.90

The margin of error is E = 0.01

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally the sample size is mathematically represented as

$n =[ \frac{ Z_{\frac{\alpha }{2} } }{E} ]^2 * p(1-p)$

=> $n =[ \frac{ 1.96 }{0.01} ]^2 * 0.90(1-0.90)$

=> $n = 3457$

8 0

3 years ago

a store sells 1/3 pound of asparagus for $.75. You need to buy 5 pounds How much will u pay? Draw a modell or explain step by st

lana66690 [7]

Answer:

$11.25

Step-by-step explanation: multiply .75 by 3 then multiply that answer by 5 and get your answer.

3 0

3 years ago

A, B, C, D, E and F are points on a circle. put crosses on the ends of the line that is a diameter of the circle

Step2247 [10]

9514 1404 393

Answer:

AD is the diameter

Step-by-step explanation:

Angles in a triangle have a sum of 180°, so inscribed angle B is 80° and inscribed angle E is 90°.

An inscribed angle subtends an arc that is twice its measure, so arcs ABD and AED are both 180°. That makes chord AD a diameter.

Points A and D need your cross markings. AD is a diameter of the circle.

3 0

3 years ago

What is the area of a trapezoid if the base is 5, 17, 5 and height is 4

Genrish500 [490]

Answer:

44 units squared.

Step-by-step explanation:

The formula for area of a trapezoid is:

$a = \frac{ b^{1} + {b}^{2} }{2} h$

a = missing area

b1 = short base (5)

b2 = long base (17)

h = height (4)

(5 + 17) ÷ 2 = 11

11 × 4 = 44

area = 44

8 0

3 years ago

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