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erma4kov [3.2K]
3 years ago
9

Mario’s company makes unusually shaped imitation gemstones. One gemstone had 10 faces and 11 vertices. How many edges did the ge

mstone have?
Mathematics
1 answer:
saul85 [17]3 years ago
6 0
Euler formula: VERTICES + FACES - EDGES = 2

11+10 -E = 2

21-2 = E and E(edges) = 19
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How many significant figures are there in the number 31.6901? A. 6 B. 4 C. 3 D. 5
Simora [160]
Significant figures are numbers after the decimal point, which have usually been rounded. There are four numbers after the decimal point, so there are 4 significant figures.

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5 0
3 years ago
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Serena has $130 in her bank account . Her account is compounded quarterly for 2 years at a 9.4% interest rate . What is her tota
____ [38]
\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$130\\
r=rate\to 9.4\%\to \frac{9.4}{100}\to &0.094\\
n=
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\\\\\\
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7 0
3 years ago
What is the greatest common factor "GCF" of 24x^2 y^3 z^4 + 18x^6 z - 36x^3 y^2
Leokris [45]

Answer:

6x^2

Step-by-step explanation:

4 0
3 years ago
‼️‼️‼️‼️HELP‼️‼️‼️‼️‼️‼️‼️
Vesnalui [34]

Michael took the return trip at a velocity 33.75 miles per hour.

<h3>How fast did Michael drive in his return trip?</h3>

Let suppose that Michael drove in <em>straight line</em> road and at <em>constant</em> velocity. Therefore, the speed of the vehicle (v), in miles per hour, can be defined as distance traveled by the vehicle (d), in miles, divided by travel time (t), in hours.

First trip

45 = s / 3     (1)

Second trip

v = s / 4       (2)

By (1) and (2):

45 · 3 = 4 · v

v = 33.75 mi / h

Michael took the return trip at a velocity 33.75 miles per hour.

To learn more on velocities: brainly.com/question/18084516

#SPJ1

3 0
2 years ago
Pls help me this is 7th grade (ADVANCED)
aleksandrvk [35]

Answer:

it  (6,18,23)

Step-by-step explanation:

3 0
3 years ago
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