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True [87]
3 years ago
11

Grade 9 math plzz helpp a or b or c or d

Mathematics
1 answer:
hram777 [196]3 years ago
4 0

Answer:

g(x) = 3^{x -4}

Step-by-step explanation:

Given

f(x) = 3^x

g(x) = f(x) 4 units left

Required

Find g(x)

When a point is translated 4 units left, the rule is:

x \to x - 4

So, we have:

g(x) = f(x-4)

f(x-4) is calculated as:

f(x-4) = 3^{x -4}

Hence:

g(x) = 3^{x -4}

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solong [7]
Best Answer: 2 LiCl = 2 Li + Cl2
mass Li = 56.8 mL x 0.534 g/mL=30.3 g
moles Li = 30.3 g / 6.941 g/mol=4.37
the ratio between Li and LiCl is 2 : 2 ( or 1 : 1)

moles LiCl required = 4.37
mass LiCl = 4.37 mol x 42.394 g/mol=185.3 g


Cu + 2 AgNO3 = Cu/NO3)2 + 2 Ag
the ratio between Cu and AgNO3 is 1 : 2
moles AgNO3 required = 4.2 x 2 = 8.4 : but we have only 6.3 moles of AgNO3 so AgNO3 is the limiting reactant
moles Cu reacted = 6.3 / 2 = 3.15
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N2 + 3 H2 = 2 NH3
moles N2 = 42.5 g / 28.0134 g/mol=1.52
the ratio between N2 and H2 is 1 : 3
moles H2 required = 1.52 x 3 =4.56
actual moles H2 = 10.1 g / 2.016 g/mol= 5.00 so H2 is in excess and N2 is the limiting reactant
moles NH3 = 1.52 x 2 = 3.04
mass NH3 = 3.04 x 17.0337 g/mol=51.8 g
moles H2 in excess = 5.00 - 4.56 =0.44
mass H2 in excess = 0.44 mol x 2.016 g/mol=0.887 g
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3 years ago
The eatery restaurant has 200 tables. On a recent evening, there were reservations for 1/10 of the tables. How many tables were
joja [24]
<span>There were 20 tables reserved. 1/10 is equivalent to 10%. To find 10%, divide the total number of tables by 10. 200/10 = 20.</span>
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if 15 cars were washed there would be $52.50

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Answer:

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Step-by-step explanation:

Using the distance formula.

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Find the probability that either event a or b occurs if the chance of a occurring is .5, the chance of b occurring is .3, and ev
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