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svp [43]
3 years ago
15

The SI unit for pressure is pascal (Pa). One hectopascal would equal how many pascals?

Mathematics
1 answer:
IgorLugansk [536]3 years ago
8 0

Answer:

100 pascals would be your answer

have a great day ! ⭐️

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How do you solve (a-3b)(7a-3b)
Anna [14]

Step-by-step explanation:

Simplifying

(7a + 3b)(7a + -3b) = 0

Multiply (7a + 3b) * (7a + -3b)

(7a * (7a + -3b) + 3b * (7a + -3b)) = 0

((7a * 7a + -3b * 7a) + 3b * (7a + -3b)) = 0

Reorder the terms:

((-21ab + 49a2) + 3b * (7a + -3b)) = 0

((-21ab + 49a2) + 3b * (7a + -3b)) = 0

(-21ab + 49a2 + (7a * 3b + -3b * 3b)) = 0

(-21ab + 49a2 + (21ab + -9b2)) = 0

Reorder the terms:

(-21ab + 21ab + 49a2 + -9b2) = 0

Combine like terms: -21ab + 21ab = 0

(0 + 49a2 + -9b2) = 0

(49a2 + -9b2) = 0

Solving

49a2 + -9b2 = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '9b2' to each side of the equation.

49a2 + -9b2 + 9b2 = 0 + 9b2

Combine like terms: -9b2 + 9b2 = 0

49a2 + 0 = 0 + 9b2

49a2 = 0 + 9b2

Remove the zero:

49a2 = 9b2

Divide each side by '49'.

a2 = 0.1836734694b2  

Simplifying

a2 = 0.1836734694b2

take the square root of each side:

a = {-0.428571429b, 0.428571429b}

3 0
3 years ago
Which statement is true?
valentina_108 [34]
-12 + (-11) > 5 + (-29)
-12 - 11 > 5 - 29
-23 > - 24 (true)
7 0
3 years ago
A 140-meter rope is cut into two pieces. One piece is four times as long as the other. How long is each piece?
grandymaker [24]

Answer:

28meters and 112meters

Step-by-step explanation:

one piece is x

the other is 4x

therefore; 4x+x=140

5x= 140

divide both sides by 5

x=28

4x=4(28)

=112

3 0
3 years ago
I need help pleaseeeeee nowplease
marysya [2.9K]
This is a pretty complex problem
6 0
3 years ago
Cindy earns a 15% commission on all sales. On Saturday, she sold $980 worth of merchandise. What was the amount of commission sh
Eduardwww [97]

Answer:

147

Step-by-step explanation:

980 x 15%

=147

7 0
3 years ago
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