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tensa zangetsu [6.8K]
3 years ago
11

What is the opposite of -9? :D

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
7 0
The opposite -9 is 9
konstantin123 [22]3 years ago
6 0
<h3>The answer is:</h3><h2>9</h2><h2 />

The opposite of a POSITIVE number is its NEGATIVE number.

The opposite of a NEGATIVE number is its POSITIVE number.

Therefore, the opposite of -9 is 9.

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Please give answer ofHCF of 15 and 18​
lana66690 [7]

Answer: The prime factorization of 15 is: 3 x 5. The prime factorization of 18 is: 2 x 3 x 3. The prime factors and multiplicities 15 and 18 have in common are: 3. 3 is the gcf of 15 and 18.

Step-by-step explanation:

6 0
3 years ago
The length of a social media interaction is normally distributed with a mean of 3 minutes and a standard deviation of .4 minutes
Kazeer [188]

The  probability that an interaction lasts longer than 4 minutes is 0.0062.

<h3>What is probability theory?</h3>

probability theory in mathematics  focus on the  analysis of random phenomena and this theory let us know that the outcome of a random event cannot be determined before it occurs.

z = (4 - 3)/.4

z = 1/.4

z = 2.5

0.0062

Hence The  probability that an interaction lasts longer than 4 minutes is 0.0062.

Read more on the probability here:

brainly.com/question/3248965

#SPJ1

3 0
2 years ago
Becky and claire went trick or treating.At the end of the night ,they combined their candy and found they each had four large ca
Natalija [7]

Answer:

Well, You possibly did all the math depending on the question. But if it was subtraction that means there's one candy bar left

step-by-step explanation:

I hope this helped in any way!

8 0
3 years ago
Suppose the slope of the line is positive. Describe what happens to the value of x as the value of y increases.
jasenka [17]
As the y value in creases so will the x value
8 0
3 years ago
How do you factor this equation?<br> 7x²+5x-3
svetoff [14.1K]

Answer:

Step-by-step explanation:

This is a quadratic expression.  Use the quadratic formula to find the roots, and then once you have the roots, write the corresponding factors.

The coefficients of this quadratic expression are a = 7, b = 5 and c = -3

The discriminant is b^2 - 4ac, or 5^ - 4(7)(-3), or 25 + 84 = 109.  Because this is positive, we know that the expression has two unequal, real roots.

Using the quadratic formula, we now find these roots:

      -b ± √(discriminant)

x = --------------------------------   which here is:

                   2a

      -5 ± √109

x = -----------------

             14

The factors can be found from these two roots.  The first one is

      -5 - √109                  5 + √109

(x - ---------------- )  =  (x + ---------------- )

             14                              14

and the second is

        5 - √109              

(x + ---------------- )  

             14                

8 0
3 years ago
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