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xxTIMURxx [149]
3 years ago
5

What is the x-intercept of the graph? -3-226​

Mathematics
1 answer:
klemol [59]3 years ago
5 0
I will mark brainlist please help

1) What is the concentration of a solution that contains 6 moles of solute in 2 liters of solution

• 6M

• 12M

• 7M

• 3M


2) what is the number of moles of solute in 250 mL of a 0.4M solution?

• 0.1 mol

• 0.16 mol

• 0.62 mol

• 1.6 mol


3) the molality of a solution containing 8.1 moles of solute in 4847 g of solvent is

• 39m

• 1.7m

• 0.17m

• 598m


4) which of the following is unchanged when a solution is diluted by addition of solvent?

• volume of solvent

• mass of solvent

• number of moles of solute

• molarity of solution
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???????????????????????
drek231 [11]

Answer:

x ≅ 7

Step-by-step explanation:

cos(67°) = x/18

x = 18cos(67°) ≅ 7

7 0
2 years ago
Agnes Hammer is a senior majoring in management science. She has been interviewing with several companies for a job when she gra
stiks02 [169]

Answer:

Mean = 30516.67

Standard deviation, s = 3996.55

P(x < 27000) = 0.0011518

Step-by-step explanation:

Given the data:

28500 35500 32600 36000 34000 25700 27500 29000 24600 31500 34500 26800

Mean, xbar = Σx / n = 366200 /12 = 30516.67

Standard deviation, s = [√Σ(x - xbar) / n-1]

Using calculator, s = 3996.55

The ZSCORE = (x - mean) / s/√n

Zscore = (27000 - 30516.67) / (3996.55/√12)

Zscore = - 3516.67 / 1153.7046

Zscore = - 3.048

P(x < 27000) = P(Z < - 3.049) = 0.0011518

3 0
3 years ago
The difference of the squares of two positive consecutive even integers is 7676. find the integers. use the fact​ that, if x rep
myrzilka [38]
Equation is (x+2)^2 - x^2 = 7676
solve the equation by first opening the bracket of (x+2)^2 by A^2 + 2AB +C^2 

you'll end up with 4x + 4 = 7672
thus x = 1918 and the next number is 1920.
5 0
3 years ago
You saved $140 on your new laptop because you bought it online. If this was a 20% savings from the original price, Find the orig
Elenna [48]
Let the original cost of laptop=x
Savings=20% = 20/100
Saved amount = $140
Original cost = saved amount * 1/savings
x = 140* 100/20
x = $7000
5 0
3 years ago
Jimmy is cutting old rope to make homemade rugs. Each rug has long pieces and short pieces. Complete questions 1011.
Svetllana [295]

Answer:

long pieces 126 Short pieces 21

Step-by-step explanation:

18+18+18+18+18+18+18=126

3+3+3+3+3+3+3=21

hope this helped <3

3 0
3 years ago
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