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3 years ago

Find the sum of the first 30 terms in the series: 2,4,8,16,...

Mathematics

1 answer:

MrMuchimi3 years ago

4 0

Answer:

930

Step-by-step explanation:

1) Once upon a time there was a bored kid in class who invented a super cool formula

This formula goes like this:

n(n+1)

where n= the sum of the first n numbers in a series

30(30+1)=30(31)=930

930

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Find the capitalization rate on a building that is worth $430,000, and rents for $1,500 a month.

jonny [76]

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2 years ago

Kenny had a total of 140 minutes to read, do homework, and play video games he spent x minutes reading, he spent 2(x+5) minutes

Licemer1 [7]

Answer:

He spent 52.5 minutes reading.

Step-by-step explanation:

The equation from the word problem is 2(x+5)+25=140. Distribute 2 to the parentheses and get 2x+10+25=140. Combine like terms to get 2x+35=140. Subtract 35 from both sides and get 2x=105. Divide both sides by 2 and your final answer is x=52.5

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2 years ago

PLEASE HELP WITH GEOMETRY IM STUCK!?}

Ilya [14]

Answer:

13.8

Step-by-step explanation:

Recall the trigonometric ratios

Sine = Opposite over Hypotenuse (SOH)

Cosine = Adjacent over Hypotenuse (CAH)

Tangent = Opposite over Adjacent (TOA)

Now lets look back at the question

We are given an angle and its adjacent side length (11) and we need to find the hypotenuse

The hypotenuse and adjacent sides corresponds with the trig function cosine so we will use cosine to solve for x

( remember that cosine = adjacent over hypotenuse )

$cos(37)=\frac{11}{x}$

step 1 multiply each side by x

$cos(37)*x=xcos(37)\\\frac{11}{x} *x=11$

now we have $xcos(37)=11$

step 2 divide each side by cos(37)

$\frac{xcos(37)}{cos(37)} =x\\\frac{11}{cos(37)} =13.77349\\$

we're left with x = 13.77439

Our last step would be to round to the nearest tenth

We would get that the answer is 13.8

3 0

2 years ago

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Which digit holds a value that is 1 10 the value of the underlined digit in the number twenty-two thousand two hundred twenty-tw

andre [41]

Answer:

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3 years ago

How many 3/4s are in 2? Draw a tape diagram

kaheart [24]

Answer:

8/3, or 2 if you want a whole number

Step-by-step explanation:

Well, the simple answer is 2/(3/4). This is nothing but 2*4/3, which is just 8/3. (I used the theorem that states that dividing is the same as multiplying by the reciprocal)

4 0

2 years ago

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