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4 years ago

Exponential form Log9 81 =2

Mathematics

2 answers:

Anni [7]4 years ago

7 0

Answer:

81 = 9²

Step-by-step explanation:

using the law of logarithms

• $log_{b}$ x = n ⇔ x = $b^{n}$ , hence

$log_{9}$ 81 = 2 ⇒ 81 = 9² ← in exponential form

Lera25 [3.4K]4 years ago

5 0

Answer:

Log9 (9^2)=2

Step-by-step explanation:

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A cookie recipe called for 3 1/3 cups of sugar for every 2/3 cup of flour. If you made a batch of cookies using 1 cup of flour,

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Answer:

The answer is 9.7 cups of sugar

Step-by-step explanation:

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3 years ago

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The cost for 15 cases of oranges is $75. What is the cost for 1 case? *

postnew [5]

Answer:Ok I This question can be solved using a system of equation, which requires translating the above word problem into something that can be algebraically

Let O=oranges and Let G=Grapefruit

5O +8G=235

3O + 2G=85

To solve, you must isolate one of the variables and then work from there. To do that multiply both sides of the bottom or second equation by four and then subtract the bottom equation from the top.

Which would look like this

5O +8G=235

12O + 8G= 340

Then subtract the bottom from the top to get this

-7O=-105

Solving for O we divide both sides by -7, and end up with O=15

Plugging that value back into one of our original equations to solve for G we get this

3(15) + 2G= 85

45 +2G=85

2G=40

G=20

So 1 case of each altogether would equal 15+20, or $35.

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Step-by-step explanation:

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3 years ago

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Today, 4 cows produced 26 gallons of milk. If each cow produced the same amount of milk, how many gallons of milk did each cow p

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4/4 = 1 cow

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3 years ago

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1.Which postulate or theorem can you use to prove Triangle ABE = Triangle CDE?

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Answer:

AAS Postulate.

Step-by-step explanation:

The AAS Postulate states that if 2 angles and a non-included side are congruent on both triangles, then the two triangles are equivalent.

In this case, the first Angle is: ∠B ≅ ∠D (Given, both are 90° in measurement)

For the side: Line BE ≅ line DE (Given)

∡BEA ≅ ∡DEC (Definition of Vertical Angles)

AAS Postulate is therefore used.

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3 years ago

A store sold a case of candles for $17.85 that had been marked up 10%. what was the original price?

Aleonysh [2.5K]

Step-by-step explanation:

The original price was $16.23

Explanation:

We can rewrite this problem as:

110% of what is $17.85.

"Percent" or "%" means "out of 100" or "per 100", Therefore 110% can be written as

110 x/100

When dealing with percents the word "of" means "times" or "to multiply".

Finally, lets call the number we are looking for "n".

Putting this altogether we can write this equation and solve for

while keeping the equation balanced:

110/100 × n = $17.85

110/100 × n = $17.85

110/100 × n = $17.85 100/110 × 110/100 × n = 100/110 × $17.85

110/100 × n = $17.85 100/110 × 110/100 × n = 100/110 × $17.85

100/110 <¬ cross out × 110/100 <¬ cross out × n = $ 1785/110

× n = $ 1785/110

n = $16.23n rounded to the nearest penny.

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3 years ago