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LenKa [72]
4 years ago
14

Write log (x^2-9) - log(x+3) as single logarithm.

Mathematics
1 answer:
Hoochie [10]4 years ago
5 0

Answer:log(x-3)

Step-by-step explanation:

log(A)-log(B) is log(A/B) then this would be log[(x^2-9)/(x+3)]

x^2-9 is (x-3)(x+3) then the answer is log(x-3)

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A snack company makes three batches of a nut mix using the recipe shown. Each batch contains a different total amount of mix.
stepladder [879]

Answer:

Batch 1:  3 cups cashews; Batch 2:  1/3 cup pistachios; Batch 3:  4/3 cups almonds and 2 cups cashews

Step-by-step explanation:

Let x represent the total amount of mix.

For Batch 1, we know that the amount of pistachios is 1/6 of the total and that is 1 cup; this gives us

1/6x = 1

Multiply both sides by 6:

1/6x(6) = 1(6)

x = 6

There are 6 cups total.  1/2 of the mix is cashews; this means 1/2(6) = 3 cups is cashews.

For Batch 2, we know that the amount of almonds is 1/3 of the total and that is 2/3 of a cup; this gives us

1/3x = 2/3

Multiply both sides by 3:

1/3x(3) = 2/3(3)

x = 6/3 = 2

There are 2 cups of mix total.

1/6 of the mix is pistachios; this gives us 1/6(2) = 2/6 = 1/3 cup pistachios.

For Batch 3, we know that the amount of pistachios is 1/6 of the total mix and that is 4/6 of a cup; this means

1/6x = 4/6

Multiply both sides by 6:

1/6x(6) = 4/6(6)

x = 24/6 = 4

There are 4 cups of mix total.

1/3 of the mix is almonds; this gives us 1/3(4) = 4/3 cups almonds.  

1/2 of the mix is cashews; this gives us 1/2(4) = 2 cups cashews.

8 0
4 years ago
Read 2 more answers
Find the slope of the line that passes through the pair of points.
laiz [17]

Answer:

slope = \frac{1}{3}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 4, 1 ) and (x₂, y₂ ) = (5, 4 )

m = \frac{4-1}{5-(-4)} = \frac{3}{5+4} = \frac{3}{9} = \frac{1}{3}

7 0
2 years ago
PC=PD then (PA)PC)=(PB)(___)
yKpoI14uk [10]

Answer:

PD is the answer

Step-by-step explanation:

(PA) (PC) = (PB) (PD)

6 0
3 years ago
Two angles are supplementary if the sum of the measure of the angles is 180 degrees. If one angle is 12 degrees more than its​ s
babunello [35]
Let 1 angles be x, then its supplement is 180-x

x+x+12=180
2x=168
x=84

angles are 84 and 96
5 0
3 years ago
6th grade math help me pleaseeee
dybincka [34]

Answer:-45

Step-by-step explanation:

7 0
3 years ago
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