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Ainat [17]
2 years ago
5

Write your answer without using negative exponents

Mathematics
1 answer:
Reil [10]2 years ago
5 0

Answer:

\frac{1}{ {u}^{42} }

Step-by-step explanation:

From law of indices

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Lisa has a rectangular trampoline that is 6 feet long and 12 feet wide. What is the area of her trampoline in square feet?
Cloud [144]
6*12 = 72ft²

The area of the trampoline is 72ft²

Hope this helps! :)
3 0
3 years ago
Lily is a lilypad in a small pond. Lily doubles in size each day. On the 20th day she covers the whole pond. On what day was Lil
svetoff [14.1K]

Answer:

19th day

Step-by-step explanation:

So say Lily was 1 when Lily was planted

First day Lily is 2

Second day Lily is 4

Third day Lily is 8

etc...

See the pattern?

The pattern is 2^x

On the 20th day, Lily was 2^20

So when Lily was half, Lily was 2^20 / 2

2^x = 2^20 / 2

2^x = 2^19

On the 19th day, Lily was half.

8 0
3 years ago
Help please with algebra problem
Strike441 [17]
Number of weekend minutes used: x
Number of weekday minutes used: y

This month Nick was billed for 643 minutes:
(1) x+y=643

The charge for these minutes was $35.44
Telephone company charges $0.04 per minute for weekend calls (x)
and $0.08 per minute for calls made on weekdays (y)
(2) 0.04x+0.08y=35.44

We have a system of 2 equations and 2 unkowns:
(1) x+y=643
(2) 0.04x+0.08y=35.44

Using the method of substitution
Isolating x from the first equation:
(1) x+y-y=643-y
(3) x=643-y

Replacing x by 643-y in the second equation
(2) 0.04x+0.08y=35.44
0.04(643-y)+0.08y=35.44
25.72-0.04y+0.08y=35.44
0.04y+25.72=35.44

Solving for y:
0.04y+25.72-25.72=35.44-25.72
0.04y=9.72

Dividing both sides of the equation by 0.04:
0.04y/0.04=9.72/0.04
y=243

Replacing y by 243 in the equation (3)
(3) x=643-y
x=643-243
x=400


Answers:
The number of weekends minutes used was 400
The number of weekdays minutes used was 243
6 0
2 years ago
For what x value(s) does f(x)=2? HELP ANSWER FAST!!!!!!
GuDViN [60]

Answer:

x = 2

Step-by-step explanation:

Given

See attachment

Required

What is the value of x?

The vertical axis represents f(x) while the horizontal represents x.

From the attachment:

f(x) = 2 when x = 2

The circled point on attachment 2 represents the required point

<em>Assume that each box is 1 unit.</em>

5 0
3 years ago
Is for over two and 20/6 proportions
ad-work [718]
No they're not proportional, and it's four*.
4/2 = 2
20/6 = 3.333333333334 or 3 1/3
4 0
3 years ago
Read 2 more answers
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