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3 years ago

O picatura de ulei cu volumul de 0,3 mm a format pe suprafata apei o pelicula cu aria de 300 cm Calculati grosimea peliculei

Mathematics

1 answer:

lesantik [10]3 years ago

8 0

What did you misspell something or are you foreign

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Clare estimates that her brother is 4 feet tall. When they get measured at the doctor’s office, her brother’s height is 4 feet,

alekssr [168]

Answer:

1. Yes
2. 2 inches
3. 4%

Step-by-step explanation:

Estimated height is 4 feet
Measured height is 4 feet 2 inches

1. The measurement is actual and should be considered as such. Estimate is approximate most of the time.

2. <u>The error is:</u>

4 feet 2 inches - 4 feet = 2 inches

3. <u>Percent error:</u>

2 inches/4 feet 2 inches × 100% =
2 inches / 50 inches × 100% =
0.04× 100% =
4%

5 0

2 years ago

35. Explain the difference between the reciprocal of x^2

Scorpion4ik [409]

Answer:

As you can see, the difference between the reciprocal of $x^2$ and the inverse of $x^2$ is that $\frac{1}{x^2} =x^{-2}$ and $\sqrt{x} =x^{\frac{1}{2}$ .

Step-by-step explanation:

First lets find both the reciprocal of $x^2$ and the inverse of

Recall that the reciprocal of a value is where you take a fraction and swap the places of the terms. In the case of $x^2$ , 1 is the denominator, so

$\frac{x^2}{1} =\frac{1}{x^2}$

To find the inverse of a function, you first need swap the locations of x and y in the equation

$y=x^2\\\\x=y^2$

Now, you need to solve for y

$y^2=x\\\\y=\sqrt{x}$

Now, lets rewrite each of these to better compare them

$\frac{1}{x^2} =x^{-2}\\\\\sqrt{x} =x^{\frac{1}{2}$

As you can see, the difference between the reciprocal of $x^2$ and the inverse of

7 0

3 years ago

Pls help due today or ill fail

Nezavi [6.7K]

Answer: Ok so I may be wrong but I got 84ft

Step-by-step explanation: The bottom looks like a rectangle so it would be 4 times 12. 4 times 12 equals 48. since the height is 4 it would be 10-4 which equals 6. 6 Times 12 divided by two equals 36. 36 plus 48 is 84.

7 0

3 years ago

The ratio of Rogers age to his sons is 7:3. If the sum of their ages are 60 how old is Rogers son

Nimfa-mama [501]

Answer:24

Step-by-step explanation:

Sum of their ages is 60 yr. As such

7x + 3x = 60

10x = 60

x = 60 / 10

x = 6

The rationale is 6, therefore

Father's age is 7x = 7 × 6= 42 years

Son's age is 3x = 3 × 6 = 18 years

Difference in their ages

42 - 18 = 24 years

5 0

3 years ago

I really don't get this please help

Fiesta28 [93]

21 3/16...as a decimal
the 21 is a whole number and goes to the left of the decimal....and the fraction 3/16 goes to the right of the decimal.
3/16 = 0.1875....now add ur 21 and u get 21.1875 inches wide

2 3/8....as a decimal
3/8 = 0.375....now put ur 2 in there and it becomes 2.375 inches thick

4 0

2 years ago