All categories

2 years ago

Another one, PLEASE help

Mathematics

2 answers:

Lostsunrise [7]2 years ago

6 0

Answer:

Anthony is Correct

Step-by-step explanation:

3^5 is 243

3^-5 is -243

So if you put in a calculator -243 times 243, you get 1. Which is Anthony's answer

MA_775_DIABLO [31]2 years ago

6 0

Only Anthony is right because when multiplying exponents you basically adding them which equals 3^0 which is 1

You might be interested in

Name the part of the given expression that is asked. What is "20" in the expression: 7x - 15y + 20

Radda [10]

Answer:

y value

Step-by-step explanation:

7 0

3 years ago

A row team paddles 30 miles upstream in 2 hours and 30 miles downstream in 45 minutes. How fast can the row team paddle in still

sp2606 [1]

Answer:

Rate in still water = 27.5 mph

Current's rate = 12.5 mph

Step-by-step explanation:

Let

x mph = row team rate in still water

y mph = current's rate

<u>Upstream:</u>

Distance = 30 miles

Time = 2 hours

Rate = x - y mph

Then

$30=2(x-y)$

<u>Downstream:</u>

Distance = 30 miles

Time = 45 minutes $=\dfrac{3}{4}$ hour

Rate = x + y mph

Then

$30=\dfrac{3}{4}(x+y)$

From the first equation:

$30=2(x-y)\Rightarrow 15=x-y$

From the second equation:

$30=\dfrac{3}{4}(x+y)\Rightarrow 40=x+y$

Add these two equations:

$15+40=x-y+x+y\\ \\2x=55\\ \\x=27.5\ mph$

Subtract these two equations:

$40-15=x+y-(x-y)\\ \\25=x+y-x+y\\ \\2y=25\\ \\y=12.5\ mph$

8 0

4 years ago

Which of the tables represents a function?

True [87]

Table B. The same input can't go to different outputs

8 0

3 years ago

suppose 10 deer are traveling together. if 4 of them are does and 3 are fawns, what fraction represents the number of bucks? wri

e-lub [12.9K]

Answer:

3/10

6/20

Step-by-step explanation:

We need to find the number of bucks

4 does + 3 fawns + x bucks = 10

4 + 3 +x = 10

7+ x = 10

Subtract 7 from each side

x = 3

There are 3 bucks

3/10 is the fraction of bucks

Multiply the top and bottom by 2

3/10 * 2/2 = 6/20 is an equivalent fraction

7 0

3 years ago

Read 2 more answers

Simplify:

kramer

Hi Grace!

4p + 12 - 3q - 4p - 18 + 6q
Combine like terms
4p - 4p + 12 - 18 - 3q + 6q
= -6 + 3q

The correct answer is option D

4 0

4 years ago

Read 2 more answers