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2 years ago

Which of the numbers below is less than zero? Select all that apply.

Mathematics

2 answers:

UkoKoshka [18]2 years ago

4 0

Answer:

A, B, E area ll less than 0

Step-by-step explanation:

They are all negative numbers.

laiz [17]2 years ago

3 0

Answer:

A, B, E

Step-by-step explanation:

All negative numbers are less than zero.

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A cat keeps eating to gain weight while a dog keeps doing exercise.Later, the cat's weight increases by 20% and the dog's weight

lesya [120]

Answer:

Step-by-step explanation:

We will call the dog's original weight d and the cat's c. according to the problem 1.2c=.9d

1.2c is the cat's weight increased by 20% and .9d is the dog's weight decreased by 10% Now we just solve this with algebra for the dog's original weight.

1.2c=.9d

(1.2/.9)c = d

(4/3)c = d

Now, this tells us that the dog's original weight was 4/3 of the cat's.or about 33.33% larger

It kinda looks like the question is then asking what the cat's current weight is in comparison to the dog's original. If that's the case we need just one more step. We want the dog's original weight and the cat's current weight in terms of the same variable. Well, we have that.

Current cat = 1.2c or 6/5, since we have the other in fractional form.

original dog = (4/3)c

Now, what do we multiply the first to get to the second? Well, we need common denominators. 15 is the lcm of 3 and 5, so we'll use that.

6/5 = 18/15 and 4/3 = 20/15

Nowwe want to know what we have to multiply 18 by to get to 20. some algebra will find that.

18x=20

x = 20/18

x = 10/9

that's about 1.11, so the dog's original weight is about 11% higher than the cat's current weight.

Hopefully that's the answer it wanted, if not or if there is something you didn't understand let me know.

7 0

3 years ago

A hockey player strikes a hockey puck. The height of the puck increases until it reaches a maximum height of 3 feet, 55 feet awa

MariettaO [177]

Answer:

The maximum height of the second pluck is greater than that of the first pluck, hence the second pluck travels further

Also the distance of the maximum height of first pluck from the player is less than the distance of the second pluck from the player hence the second pluck travels further

Step-by-step explanation:

From the question we are told that

The maximum height of the first pluck is $h_1 = 3 \ ft$

The height of the second height is mathematically represented as

$$y=x\left(0.15-0.001x\right)$

=> $y=0.15x -0.001x^2$

Generally at maximum height $y' = 0$

$y'=0.15 -0.002 x = 0$

=> $x = 75 \ ft$

Here 75 ft is the horizontal distance the second pluck traveled at maximum height

So the maximum height of the second pluck is mathematically represented as

$y=0.15(75) -0.001(75)^2$

=> $y= 5.625 \ ft$

So comparing the maximum height of the first and the second pluck we see that the maximum height of the second pluck is greater than that of the first pluck, hence the second pluck travels father

3 0

3 years ago

You are taking a multiple-choice test that has eight questions. each of the questions has three answer choices, with one correct

sukhopar [10]

Alright, so there are three answers. Start with 3, and for each question you answer, you can select three more, so it's 3*3 for two questions and so on, resulting in 3^8= 6561

This is assuming you mean how many ways can you answer the test, not the question

5 0

3 years ago

I buy the same items every week and my bill is normally $90.00. why am i now being charged $108.00 for the exact same items?"

FromTheMoon [43]

Unless there has been a mistake in calculating the price, the only other explanation that the price for the item has been increased to a total of 108 - 90 = $18

7 0

3 years ago

Read the sentence.

BARSIC [14]

Answer:

Scientists reached a decision about when to begin the experiment.

Explanation:

Changing of a sentence from passive to active voice or vice versa involves the situational changes in the sentence of both the subject and the object (if there are any). From the example given in the question, the sentence in the passive voice is-

A decision was reached by scientists about when the experiment would begin.

To change this sentence into an active voice, the identification of the subject and object is needed. And then, in an active voice, the subject will be at the beginning of the sentence.

'Decision' is the object in the sentence while the 'scientists' signify the subject(s).

Thus, the new sentence in the active voice will become-

Scientists reached a decision about when to begin the experiment.

6 0

3 years ago