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3 years ago

15

According to the rules of significant figures, the number of digits that are estimated in a measurement is:

1 answer:

meriva3 years ago

5 0

According to the rules of significant figures in counting the number of significant figures when dealing with the measurement, especially when it is scientifically measured, you must consider 2 zeros at the right of the period. For example, in 98.00 there are 4 significant figures

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(-2) +32) (-14) + (-7)

Lera25 [3.4K]

Answer:

-457

i think i used a calculator

hope this helps

Step-by-step explanation:

3 0

3 years ago

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Which is the best first step when solving the following system of equations? 5 c + 4 d = 10. 3 c + 2 d = 16. Multiply the first

Virty [35]

Answer:

5c+4d=10

3c+2d=16

8c+6c=26

8 0

2 years ago

Find the value of the matrices <br> A) 17<br> B) 12<br> C) 15<br> D) 13

nlexa [21]

Answer:

option C is correct

Step-by-step explanation:

We need to find the determinant.

= -1(7*9 - 3*9)-( -3)(4*9 - 3*3) -2(4*9 -7*3)

= -1(63-27) +3 (36 - 9) -2( 36- 21)

= -1(36)+3(27)-2(15)

= -36+81-30

= 15

Option C is correct

8 0

3 years ago

Plz help me with this problem it’s not that hard at all !!

Brums [2.3K]

Answer:

43x-19y+74

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Step-by-step explanation:

3 0

3 years ago

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I need help with this one pls!

Alex73 [517]

Hi there!

$\large\boxed{b = \frac{a}{ac - 1}}$

We can begin by making each fraction have a common denominator:

If we make each have a common denominator of ab, we get:

$\frac{b}{ab} + \frac{a}{ab} = c$

Simplify:

$\frac{a + b}{ab} = c$

Multiply both sides by ab:

$a + b = cab$

Move b to the opposite side:

$a = cab - b$

Factor out b:

$a = b(ac - 1)$

Divide by (ac - 1):

$\frac{a}{ac - 1} = b$

4 0

3 years ago