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astra-53 [7]
3 years ago
7

[SOMEONE PLEASE HELP] (2x^4y^5)(-3x^2y^7)

Mathematics
1 answer:
solmaris [256]3 years ago
5 0

Answer:

-6x^6 y^12

Step-by-step explanation:

Okay, so the first thing we have to do is simplify the expression.

The simplified version of the expression: -6x^6 y^12

or negative six to the 6th power & y to the 12th power

You're Welcome :) plz mark me brainliest

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If y is 5 when x is 2.5 and y varies directly with x, find y when x is 10
ikadub [295]

Answer:

If x varies directly as y, then x=ky. y=5 and x=2.5 are substituted into x=ky to find k.

2.5=5k

k=2.5/5

k=5.

K =5 is substituted in x=ky to find y where x is 10.

x=5y

10=5y

y=10/2

y=2

8 0
3 years ago
Read 2 more answers
Question 1 point
ludmilkaskok [199]

Answer:

h = 23 hours

Step-by-step explanation:

Take 143.75 and divide it by 6.25

143.75/6.25 = 23

23 is the answer

4 0
3 years ago
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PLEASE HELP ME!!!!!!!
Airida [17]
<h3>Answer:</h3>

D. This is an experiment because it is applying a treatment

<h3>Step-by-step explanation:</h3>

Experiments and observational studies are both ways to find new information about a hypothesis but in different ways.

Vocabulary

First, to understand the question, let's define the key terms.

  • Experiment - An experiment is when a scientist purposely applies a treatment and interferes with a person's life in order to gather information.
  • Observational Study - This type of study attempts to study a person without interfering with their lives in any way.

These definitions eliminate the answer choices A and C because both of them match the incorrect definition of the term.

Experiment vs. Observational Study

Now, we need to figure out if this specific example is an experiment or an observational study. In this case, the nutritionist is giving a treatment of vitamins. This means that this cannot be an observational study because the scientist is interfering with people. It has to be an experiment because there is a specific treatment being applied.

5 0
2 years ago
Pens are on sale for 3 pens for $6 Karen bought 3 pens Leo bought 1 pen how much more did Karen spend than Leo
Rasek [7]
If the correlation is correct, then 1 pen would be equal to $2. In this case, karen spent $2 for each pen for a total of 3 pens for $6. If Leo bought 1 pen, he would spend $2. So, $6-$2=$4. Karen spent 4 more dollars than Leo. If this helped, please mark me brainliest, thank you and if you need more help, feel free to message me! 
8 0
3 years ago
Pls Help !!!!!!!!!!!!!!
Sedaia [141]

Answer:

30

Step-by-step explanation:

7 0
2 years ago
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