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stiks02 [169]
3 years ago
12

one day, the temperature in Philadelphia was at 21 degrees and the temperature in Detroit was -7 degrees. How much lower was the

temperature in Detroit than in Philadelphia
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

21-(-7)=28

Step-by-step explanation:

1. Do same, change, opposite.

21-(-7)

21+7

=28

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anyanavicka [17]

Answer:

47

Step-by-step explanation:

this is due to when 286 is divided by 61 it gets 40 and the remainder gets you 7 as a result it is 47

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3 years ago
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

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⇒(n−2)180

−(n−2)144

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⇒(n−2)(180

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=180

⇒n−2=

36

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⇒n=5+2=7

Hence, the polygon has 7 sides.

6 0
2 years ago
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Help please will give B
Vinvika [58]

Hi there! Hopefully this helps!

----------------------------------------------------------------------------------------------------------------

<em>Remember: When the numerator and denominator both are positive integers or both are negative integers, it is a positive rational number. When either the numerator or the denominator is a negative integer, it is a negative rational number.</em>

(-1/-3) Positive Rational Number.

(+1/-3) Negative Rational Number.

(-2/+3) Negative Rational Number.

(+1/+3) Positive Rational Number.

(+2/-3) Negative Rational Number.

(-1/+3) Negative Rational Number.

(-2/-3) Positive Rational Number.

(+2/+3) Positive Rational Number.

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3 years ago
Help diffrent question
Scorpion4ik [409]

Answer:

is congruent because are parralel

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3 years ago
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