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podryga [215]
3 years ago
10

Is a 90° angle perpendicular ​

Mathematics
2 answers:
Dima020 [189]3 years ago
7 0

Answer:

yes

Step-by-step explanation:

SCORPION-xisa [38]3 years ago
4 0

Answer:

If you're asking about the lines then yes since perpendicular lines intersect at a right or 90 degree angle.

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-3 - 8 = 19<br> —3x - 2 = 25
Delicious77 [7]

Answer:

a negative times a negative is a positive so 8×3=24/19 will give you that answer

you add -2 to the other side with 25 and get 27 then u work the rest of the problem out to solve for x

4 0
3 years ago
If a is a negative number, then a(1/a) is equal to -1. If a is a negative number and b is a negative number, then product ab is
Firdavs [7]

Both claims are false. In fact, a and \frac{1}{a} are one the multiplicative inverse of the other. This means, by definition of multiplicative inverse, that

a \cdot \dfrac{1}{a} = 1 \quad\forall a \in \mathbb{R}

So, it doesn't matter if a is positive or negative: the multiplication of one number and its inverse will always be 1: for example,

(-2) \cdot \dfrac{1}{-2} = \dfrac{-2}{-2} = 1

Similarly, when you multiply two number, the sign of the product depends on the sign of the factors as follows:

  • (+) \cdot (+) = (+)
  • (+) \cdot (-) = (-)
  • (-) \cdot (+) = (-)
  • (-) \cdot (-) = (+)

So, the multiplication of two negative numbers is a positive number.

8 0
3 years ago
If Clare earns $75 the next week from delivering newspapers and deposits it in her account, what will her account balance be the
4vir4ik [10]
Answer is x+75

Basically $75
3 0
2 years ago
The low temperature was -1.8 yesterday and -2.1 today. Use the symbols do you show the relationship between the temperature
Sonbull [250]

Answer:

all you have to do is find your answer off of bainly

8 0
3 years ago
EXPERTS/ACE/GENIUSES/TRUSTED HELPERS HELPP ME
Bad White [126]
Answer is B, the graph increases by about 0.28 per year
8 0
2 years ago
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