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3 years ago

Find the 39th term of the arithmetic sequence

Mathematics

1 answer:

myrzilka [38]3 years ago

8 0

Answer:

-142

Step-by-step explanation:

You seem to have an arithmetic sequence with first term -66 and common difference (-68-(-66)) = -2. The general term of such a sequence is given by ...

an = a1 +d(n -1) . . . . . for first term a1 and common difference d

We want to evaluate this equation for a1 = -66, d = -2, n = 39:

a39 = -66 -2(39 -1) = -66 -76 = -142

The 39th term is -142.

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There is still controversy about whether or not Pluto should be considered a planet. Although planets are mainly defined by thei

andrezito [222]

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Answer:

a) Pluto, Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter

b) 62

Step-by-step explanation:

When all the numbers are in scientific notation, as these are, the numbers with the smallest exponent are smaller. If numbers have the same exponent, the number with the smaller mantissa is smaller.

a) least-to-greatest diameter, the order is ...

Pluto, Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter

b) The ratio of diameters of Jupiter and Pluto is ...

(1.43×10^8)/(2.3×10^6) = 6.2×10^1 = 62

Jupiter's diameter is about 62 times that of Pluto.

_____

<em>Additional comment</em>

Your calculator or spreadsheet can work directly with numbers in scientific notation.

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3 years ago

A rectangular garden is 8 feet long. If you walk diagonally across the garden, you would walk 10 feet. How many feet wide is the

galina1969 [7]

By using Pythagoras theorem

width = $\sqrt{10^2 - 8^2}$ = 6 feet

3 0

3 years ago

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Hot dogs come in packages of 8. Hot dog buns come in packages of 12. If Grace wants

TEA [102]

If one package of hot dogs buns is 12 than she need 2 packages

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3 years ago

A grocery store sells a bag of 6 oranges for $2.34. If Mav spent $1.95 on oranges, how many did she buy?

poizon [28]

Answer:

5 oranges

Step-by-step explanation:

to solve this problem we need to make a cross-multiplication equation

2.34 is to 6 as 1.95 is to ?

? is the number of oranges that are needed to be found that were bought

2.34/6 = 1.95/?

Now we cross multiply 6 and 1.95 = 11.7

11.7/2.34 = 5

Give brainliest, please!
hope this helps :)

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2 years ago

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A cone-shaped building has a height of 11.4 meters and a base with a diameter of 12 meters. The building will be filled with roa

Lyrx [107]

We know, Volume of a Cone = πr² h/3
v = 3.14 * (6)² * 11.4/3
v = 3.14 * 36 * 3.8
v = 429.552

Now, for 1 m³, it costs = $20
So, for 429.552 m³, it will be: 20 * 429.552 = 8591

In short, Your Answer would be $8591

Hope this helps!

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4 years ago

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