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mariarad [96]
3 years ago
13

If each exterior angle of a regular polygons=40 how many sides does it have ?

Mathematics
1 answer:
ZanzabumX [31]3 years ago
7 0
All angles=40
therefore, internal angle= 140 degree
therefore, it has 5 sides
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how many pieces of string that are 2/7 of an inch long can be cut from a piece of string that are 7/8 of an inch long
Nimfa-mama [501]

namely, how many times does 2/7 go into 7/8?

\bf \cfrac{7}{8}\div\cfrac{2}{7}\implies \cfrac{7}{8}\cdot \cfrac{7}{2}\implies \cfrac{49}{16}\implies 3\frac{1}{16}\impliedby \textit{3 whole times}

6 0
4 years ago
Given: -1/2x > 6.
lubasha [3.4K]

Answer:

B(2)

Step-by-step explanation:

SO basically think of it as x is a teenager that wants to be alone. so  have to figure out how to get everyone on the otehr side of their bedroom door (>)

so you are going to do this

-1/2x>6

/-1/2x  /-1/2x

x<6/-1/2

x<6*-2/1

x<-12

Read more on Brainly.com - brainly.com/question/14190937#readmore

8 0
3 years ago
Elimination <br> 2x - 5y = 8 <br> x - 3y = -1
ruslelena [56]
X=29 and y=10

You would isolate one of the variables and then plug the expression into the other equation to find the value of one variable. Then you would plug this value into the other equation to determine the value of the remaining variable.

8 0
3 years ago
PLEASE HELP!!!
tatuchka [14]
Asked and answered elsewhere.
brainly.com/question/10629871

How do you calculate it? You start by expressing the density in the units you have. Then you multiply by appropriate conversion factors to get to the units you want. Treat units as though they were any other variable. A value cancels that appears in both the numerator and denominator of a fraction.

\dfrac{56.15\,kg}{0.222\,hh}\cdot \dfrac{1000\,g}{1\,kg}\cdot \dfrac{1\,pw}{1.55\,g}\cdot \dfrac{1\,hh}{238.5\,L}\cdot \dfrac{9.091\,L}{1\,pk}\\\\=\dfrac{56.15\cdot 1000\cdot 9.091\,pw}{0.222\cdot 1.55\cdot 238.5\,pk}\\\\ \approx6220\,\frac{pw}{pk}
5 0
3 years ago
8/10 Minus 3/5 In simplest form
joja [24]
\frac{8}{10} -  \frac{3}{5} \\ \\  \frac{4}{5} -  \frac{3}{5} \ / \ simplify \\ \\  \frac{4-3}{5} \ / \ combine \ denominators \\ \\  \frac{1}{5} \ / \ simplify \\ \\

The final result is 1/5 or, in decimal form, 0.2.
6 0
4 years ago
Read 2 more answers
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