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Sphinxa [80]
2 years ago
10

If x+y= -10 and x-y= 2 what is the value of x?

Mathematics
1 answer:
SashulF [63]2 years ago
4 0

X = 6

Step-by-step explanation:

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Find the distance between 13/3 and the square root of 16/9
Ainat [17]

Answer:

Root 16=4

Root 9=3

Therefore it becomes 4/3

Now distance between the two= 13/3-4/3 which is equal to 9/3 and 9 divided by 3 is 3.

Therefore the distance between the two on a number line is 3

3 0
3 years ago
Algebra hcf<br>10xyz and 15y²z²​
boyakko [2]

Answer:

5yz

Step-by-step explanation:

1st expression=10xyz

=<u>5</u>*2*x*<u>y</u>*<u>z</u>

2nd expression=15(y)2 (z)2

=<u>5</u>*3*<u>y</u>*y*z*<u>z</u>

therefore H.C.F=5yz

underlines are taking common.

3 0
2 years ago
How do you think the population density of Cleveland, a major city in Ohio, compares with the population density of the state? E
Sveta_85 [38]

A large city represents an area where people live closer together than they do in the countryside, or in small cities. Hence its population density is greater than the average for cities and rural areas combined.

The population density of Cleveland is greater than that of the state of Ohio.

7 0
3 years ago
A quadratic equation is shown below:
lys-0071 [83]
16x^2 − 8x + 1 = 0

<span>Part A: 
</span>b^2 - 4ac for ax^2 + bx + c

16x^2 − 8x + 1 = 0
so in this case,
a = 16,  b = -8, c = 1

b^2 - 4ac
=(-8)^2 - (4 * 16* 1)
= 64 - 64
= 0
because it's equal 0, answer is one solution

Part B:

<span>4x^2 − 8x − 45 = 0
</span><span>solve the equation by factoring </span> 
= (2x - 9)(2x + 5)

set (2x - 9)(2x + 5) equal to 0 to solve for x
so
(2x - 9)(2x + 5) = 0
2x - 9 = 0
  x = 9/2
  x = 4.5

2x + 5 = 0
  x = -5/2
  x = -2.5
answer
x = -2.5 or x = 4.5

Hope it helps



5 0
3 years ago
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