3 years ago

What are the standard deviation and the relative standard deviation for the percent of cacl2?

Mathematics

1 answer:

Elenna [48]3 years ago

4 0

Idk im just tryna complete a challenge lol

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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the

S_A_V [24]

Answer:

8^2 = b^2 + 4^2

Step-by-step explanation:

5 0

2 years ago

Can you help me please?

Anarel [89]

Answer:

C(x)=25x+6000

b=2250

Step-by-step explanation:

C(x)=mx+b

m-marginal cost

x-no items

finding B

C(x)mx+b

6000=25(130)+b

b=2250

General substitution

C(x)=25x+6000

8 0

3 years ago

Express sin Q as a fraction in simplest terms.

Lesechka [4]

Answer:

Solution given

Sin Q=opposite/hypotenuse=28/29

28/29 is. a required answer.

3 0

3 years ago

The sum of the measures of angle Y and angle Z is 180 degrees. Angle Y measures (3x + 20) degrees and Angle Z measures x degrees

Minchanka [31]

A)
The question tells us that
y + z = 180
And
y=3x+20
z=x

So we put them in the first formula:

y + z = 180
(3x + 20) + x = 180

Add and get x to one side:
4x + 20 = 180
4x + 20 - 20 = 180-20
4x = 160
Divide both sides by 4
x = 40

B)
Put x back in to equation to get size of each angle:

Y =3x +20
Y=3(40)+20
Y=120+20
Y=140

Z=x
Z=40

Verify: y+z=180
140+40=180
180=180

8 0

3 years ago

Please helppppppppppppppppp

Anika [276]

The answer will be 40. As it doubles twice during 220mins- 10 to 20 and then 20 to 40.

8 0

3 years ago