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3 years ago

Solve log(base 2) (x+1) + log (base 2) (x-5)= 4

1 answer:

6 0

(x+1)(x-5)= 2^4=16

x^2 -4x -5 =16

x^2-4x-21=0

x= -3 or 7
but we would choose 7 as the answer as -3 gives negative value at (x+1) and we know that log of negative number is not defined.

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Which set of ordered pairs represents a function?

kramer

A is the correct answer.

By definition, a function is a relation where each input has exactly one output. In letter A, the inputs 0, 1, 2, and 3 all have exactly one output.
In B, the input 1 has two outputs.
In C, the input 2 has two outputs.
In D, the input 2 also has two outputs.

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3 years ago

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Which phrase best completes the sentence?

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I think the best answer would be things that can be naturally replaced in a short period of time

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2 years ago

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5 quarters weigh approximately 1 ounce. How many ounceswould you expect a collection of quarters worth $15 to weigh?

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5 quarters =1.25$

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3 years ago

the table shows ingredients needed to make 1 batch of fruit salad. Mr. Weakland has enough ingredients to make 2 1/2 batches of

Juli2301 [7.4K]

The number of cups of fruit salad that will be in each container is; 3³/₄ cups of fruit salad

<h3>How to divide fractions?</h3>

We are given the table showing the amount of cups of each ingredient as attached.

From the table we see that;

Amount of cups of Pineapple = 2³/₄

Amount of cups of Strawberries = 2¹/₂

Amount of cups of Bananas = 1¹/₂

Amount of cups of Blueberries = 2¹/₄

Now, converting each of the given fractions to improper fractions gives;

11/4, 5/2, 3/2, 9/2

Summing up all the fractions will give us;

11/4 + 5/2 + 3/2 + 9/2

(1/4)(11 + 10 + 6 + 18) = 45/4

Now, since this total amount will be divided by 3, we will have;

45/4 ÷ 3

= 45/4 * 1/3

= 15/4 = 3³/₄ cups of fruit salad

Read more about Dividing Fractions at; brainly.com/question/1622425

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1 year ago

If every dimension of a two-dimensional figure is multiplied by k, by what quantity is the area multiplied?

Igoryamba

For example: Square has dimension a
A = a² and if every dimension is multiplied by k new dimension would be:
A 1 = k² a² = k² A.
Or the area of rhombus: A = d1 * d 2 / 2
New area is: A 1 = k d 1 * k d 2 / 2 = k² A
Answer: If every dimension of two-dimensional figure is multiplied by k, the area is multiplied by k².

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3 years ago