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skelet666 [1.2K]
4 years ago
5

What is the area of a trapezoid that has a bases measuring 19 cm and 23 cm, and a height of 14 cm?

Mathematics
1 answer:
kramer4 years ago
6 0

s =  \frac{a + b}{2}  \times h

S = (19+23)/2×14

S = 42/2×14

S = 21×14

S = 294 cm^2

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Need help answer this
Marianna [84]

Answer:

sorry but the question isn't clearly understandable!! maybe Post the full question

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3 years ago
15 points please help :")
Liono4ka [1.6K]

Answer:

15*C

Step-by-step explanation:

The temperature rises by 2.4 every 3 cycles per second. So you would have to keep the pattern going.

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0 cycles p/second = 15.0*C

So, because 0 cycles means the engine is resting, 15*C would be the answer.

4 0
3 years ago
Read 2 more answers
If your starting salary is $40,000 and you  receive a 4.2% raise every year, how much  TOTAL money will you make in 15 years?
Oliga [24]
The first year, the amount is 40,000

the second year is 40000 + 4.2% of 40000, or 0.042 * 4000, so 40000+(0.042*4000)
common factoring that  we get 40000(1 + 0.042), or just 40000(1.042)

in short, the starting amount is 40000, and to get the next term's value you'd use the "common ratio" of 1.042, namely the multiplier of 1.042.

for the third year it'll be 40000(1.042) + (0.042 *40000(1.042) ), again, common factoring that

40000(1.042)(1 + 0.042) or 40000(1.042)(1.042) or 40000(1.042)²

therefore,

\bf \qquad \qquad \textit{sum of a finite geometric sequence}\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=40000\\
r=1.042\\
n=15
\end{cases}
\\\\\\
S_{15}=40000\left( \cfrac{1-1.042^{15}}{1-1.042} \right)\implies S_{15}\approx 40000\left( \cfrac{-0.8536}{-0.042} \right)
\\\\\\
S_{15}\approx 812951.42
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3 years ago
The sum of 4 and x is greater than 6, what is the inquality?
LuckyWell [14K]
The inequality is :

4 + x > 6
6 0
3 years ago
Read 2 more answers
Chile I don’t know this
jolli1 [7]
The answer is 39 degrees
6 0
3 years ago
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