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GalinKa [24]
3 years ago
5

the sum of two numbers is -18. if the first number is 10 which equation represents this situation and what is the second number?

​
Mathematics
1 answer:
ipn [44]3 years ago
5 0
The answer would be -28
10+ -28= -18
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Find the distance between X(-3, 8) and Z(-1,5) *<br> what is it :’)
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Answer:

d = √13

Step-by-step explanation:

d = √((x2 - x1)² + (y2 - y1)²)

points: (-3, 8) & (-1, 5)

d = √((-1 - -3)²+(5 - 8)²)

d = √(2)²+(-3)²

d =√(4 + 9)

d = √13



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2 years ago
The office worker can stamp 25 letters per minute.
sattari [20]

Answer:

125

Explanation:

25 × 5 = 125


I hope this helps

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2 years ago
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There are 20 students on the school's student council. A special homecoming dance committee is to be formed by randomly selectin
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You can choose from 20 students for the first student, 19 for the second, 18 for the third, ..., 14 for the seventh student.

That gives you 20 * 19 * 18 * 17 * 16 * 15 * 14.

That number would allow you to write the students in different order. Since order here does not matter, any group with the same students in any order is the same group, you need to divide by the number of way you can order 7 items. Divide by 7 * 6 * 5 * 4 * 3 * 2 * 1

(20 * 19 * 18 * 17 * 16 * 15 * 14)/(7 * 6 * 5 * 4 * 3 * 2 * 1) = 77,520

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3 years ago
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There are more swimmers under 30 years old than there are age 50 and above.
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2 years ago
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What are the solutions of this system of equations?
SpyIntel [72]

Answer:

Option C is correct.

Step-by-step explanation:

y = x^2-x-3     eq(1)

y = -3x + 5      eq(2)

We can solve by substituting the value of y in eq(2) in the eq(1)

-3x+5 = x^2-x-3

x^2-x+3x-3-5=0

x^2+2x-8=0

Now factorizing the above equation

x^2+4x-2x-8=0

x(x+4)-2(x+4)=0

(x-2)(x+4)=0

(x-2)=0 and (x+4)=0

x=2 and x=-4

Now finding the value of y by placing value of x in the above eq(2)

put x =2

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y = -3(2) + 5

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Now, put x = -4

y = -3x + 5

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3 years ago
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