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Firlakuza [10]
1 year ago
10

Practice Problems

Mathematics
1 answer:
IgorC [24]1 year ago
7 0

Answer: The absolute values of 7 and -7 are equal because they are both a distance of 7 units from 0 on the number line.

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Solve the equation 7x - 4 =4x -1
algol13

Answer:

x= 1

Step-by-step explanation:

7x-4x= -1+4

3x = 3

x= 1

7 0
3 years ago
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Find the slope of the line
natta225 [31]

Answer:

slope = - 1

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 1, 4) and (x₂, y₂ ) = (2, 1)

m = \frac{1-4}{2+1} = \frac{-3}{3} = - 1

4 0
3 years ago
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One hypotenuse and one leg of a right triangle have lengths 61 and 11. Find the length of the other leg
atroni [7]
If the length is the same as one leg, than all the other legs should be the same exact dimensions, legs can not be different measurements by height. Hope that this help you!
5 0
3 years ago
What is the molar solubility of magnesium fluoride in a solution that is 0.40 m f− ions? the ksp of mgf2 is 6.4 × 10−9. hints wh
velikii [3]
<span>Answer: MgF2 ====⇒ Mg+2 + 2F- Ksp = [Mg+2][F-]^2 Let S = molar solubility of MgF2 [Mg+2] = S ; [F-] = 2s Since the [F-] is initially 0.40 M, then [F-] = 0.40 + 2S 6.4 x 10^-9 = (S) (0.40 + 2S)^2 ; one can neglect the 2S in the 0.40 + 2S expression since it is very, very small compared to the 0.40 already present. 6.4 x 10^-9 = S(0.40)^2 S = 4.0 x 10^-8 Molar solubility = 4.0 x 10^-8</span>
6 0
3 years ago
NO LINKS PLEASE I ACTUALLY NEED HELP THEY'RE 2 PARTS
eimsori [14]
I’m on the same question
3 0
3 years ago
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