All categories

3 years ago

Please help me with this math problem (simplify the expressions and please show work)

Mathematics

1 answer:

JulijaS [17]3 years ago

8 0

9514 1404 393

Answer:

10x^6

Step-by-step explanation:

The applicable rule of exponents is ...

(a^b)(a^c) = a^(b+c)

$(5x^4y^5)(2x^2y^{-5})=(5)(2)(x^{4+2})(y^{5-5})=10x^6y^0=\boxed{10x^6}$

You might be interested in

It cost $120 to buy the materials for crown molding in the completed office. (Crown molding is the decorative border where the w

scoundrel [369]

Answer:75

Step-by-step explanation:

4 0

2 years ago

Anyone know the answer to this ??

lana [24]

Answer: 23%
explanation:
4 + 6 + 2 + 2 + 3 + 4 + 6 + 3
There are total of 30 students.
4 + 3
7 students are freshman.
Find the percentage.
7/30 × 100
700/30 = 23.333333...
Round to nearest whole percent.
⇒ 23%

6 0

3 years ago

Which expression gives the volume of a sphere with radius 4

alisha [4.7K]

Area = 4*pi*r^2

Step-by-step explanation:

You can use this step to find the answer

hope it helps you... pls mark brainliest

7 0

2 years ago

Read 2 more answers

The rate of change of the volume of a snowball that is melting is proportional to the surface area of the snowball. Suppose the

Alisiya [41]

Answer:

According to the passage, we have the next equation:

$\frac{dV}{dt} = \frac{4}{3}\pi*3*r^{2}*\frac{dr}{dt} = K*(4\pi*r^{2} )$

where "K" is a proportional constant

Leaving at the end with the next equation:

$\frac{dr}{dt} = K$

Integrating the equation, we have:

$r=K*t+C$

where "C" is a constant

Then, we have the 2 conditions for the problem:

1) t=0 → r=10

Replacing in the equation, we have C = 10

2) t=5 → r=8

Replacing in the equation, we have K = -0.4

Finally, the time which the snowball will be completely melted will be when r = 0. So replacing in the equation

$0=-0.4*t+10$

t = 25 minutes

6 0

3 years ago

PLEASEEE HELP I DONT WANT TO FAILLL!!!

Leno4ka [110]

Answer:

A.aas

Step-by-step explanation:

4 0

3 years ago