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ratelena [41]
2 years ago
11

(7y – 20) (5х – 38) (3х – 4) - m

Mathematics
1 answer:
egoroff_w [7]2 years ago
8 0

Answer:

um

Step-by-step explanation:

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miv72 [106K]

Answer:

I think it is D

Step-by-step explanation:

7 0
3 years ago
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one interior angle of a polygon is a right angle and each of the other interior angles is 126°. Calculate the number of sides of
Vikentia [17]

Answer:

There are 7 sides.

Step-by-step explanation:

Let's Use the formula that states that the sum of the angles of an n-sided polygon is given by.

S=(n−2)180

Since we are given that the two angles are right, the angles and each of the remaining angles is 144.

And Therefore, the sum is:

S=90

(n−2)144

(n−2)180

=90

+90

+(n−2)144

⇒(n−2)180

−(n−2)144

=180

⇒(n−2)(180

−144

)=180

⇒(n−2)(36

=180

⇒n−2=

36

180

​⇒n−2=5

⇒n=5+2=7

Hence, the polygon has 7 sides.

6 0
2 years ago
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How many distinguishable permutation are possible with all the letters of the word sequence​
Marizza181 [45]

Step-by-step explanation:

hey, hope this helps/ is right :))

8 0
3 years ago
You have 2 cats<br> and 3 dogs. Write<br> the ratio of cats to<br> dogs two different<br> ways.
fomenos

Answer:

2:3

3:2

Step-by-step explanation:

3 0
3 years ago
Including 5% sales tax, an inn charges $252 per night. Find the inn’s nightly cost before the tax is added
stira [4]

Hi,

To find the cost before tax, we must find out how much the tax is. So we multiply 252 x .05 to get 12.6. So we know the tax was 12.6 dollars. Now all we have to do is subtract that from the total to get our answer. 252 - 12.6 = 239.4.

Have a great day!

3 0
3 years ago
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