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maksim [4K]
3 years ago
8

I NEED THE ANSWER QUICK

Mathematics
1 answer:
gladu [14]3 years ago
6 0

9514 1404 393

Answer:

  4^0

Step-by-step explanation:

The rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  (a^b)/(a^c) = a^(b-c)

So, your expression simplifies to ...

  4^5\times4^{-7}\div4^{-2}=4^{5-7-(-2)}=\boxed{4^0}

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Darina [25.2K]

The graph of the equations was plotted using geogebra graphing and attached.

Let x represent the hours weightlifting and y represent the hours doing cardio exercises.

Since he spend a maximum of 20 hours, hence:

x + y ≤ 20   (1)

Also, he spends at least 8 of those hours weightlifting, hence:

x ≥ 8          (2)

He wants to spend no more than 15 hours doing cardio exercises, this is:

y ≤ 15     (3)

The graph of the equations was plotted using geogebra graphing and attached.

Find out more at: brainly.com/question/17178834

3 0
2 years ago
You are given the equation 27bx7•cx8•7xd=455x27. If b and c are both integers greater than 1 and b less than cb
jolli1 [7]

Answer:

The question is not so clear and complete

Step-by-step explanation:

But for questions like this, since the equation has been given, what is expected is for us to make comparison, compare the RHS with the LHS or by method of comparing coefficients.

We follow the stated conditions since we are told that b and c are both integers which are greater than 1 and b is less than the product of cb. from these conditions, we can compare and get the values of b , c and d.

Another approach is to assume values, make assumptions with the stated conditions, however, our assumptions must be valid and correct if we substitute the assumed values of b, c and d in the equation, it must arrive at the same answer for the RHS. i.e LHS = RHS

5 0
2 years ago
Each music class sings 8 songs a week. How. Many songs does each class sing in 5 weeks 6 weeks 7 weeks
crimeas [40]

Answer:

40, 48, 56

Step-by-step explanation:

8x5 is 40

8x6 is 48

8x7 is 56

I hope this helps have a good day

7 0
3 years ago
What times will give you 150
zepelin [54]

Answer: 75(2) OR 25(6)

Step-by-step explanation:75+75 = 150 OR 25+25+25+25+25+25=150

5 0
3 years ago
Read 2 more answers
The ratio of students with brown eyes in Michelle’s class to all of the students in her class is 20:25. What is another way to w
harina [27]

Answer:

3/4, 5/6, 8/10 this is in fraction form though. just change it to 3:4

8 0
2 years ago
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