Simplify this equation 3x^2×4x^5y^4

Mathematics

1 answer:

Natalija [7]3 years ago

8 0

Answer:

(3•2^2x^7y^4)

Step-by-step explanation:

((3x2 • 4) • x5) • y4

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The Total Surface Area for the shape below is _________. (round to nearest tenth.)

gavmur [86]

Answer:

=193.2 cm

Step-by-step explanation:

Figure out the triangles first
Area= Base times Height divided by 2
first figure out one triangle A= (6)(5.2)/2 = 15.6 (brackets means times and the slash means divide
times it by 2 so you get the area of both triangles (15.6)(2)= 31.2
Now figure out the rectangles
Area= Base times Height
A=(6)(9) = 54
Then times it by 3 to get the area of all three triangles
(54)(3)= 162
Now add 162 and 31.2 and you get 193.2 cm

3 0

2 years ago

Help help help help help

algol [13]

Answer:

I'd say 7ft

Step-by-step explanation:

a square has equivalent sides so just divide 49.

please correct me if im wrong.

5 0

2 years ago

A store gives a customer 20% off if $10 or more amount of product is purchased. Otherwise the customer pays the usual price at c

Nadya [2.5K]

Answer:

The expected payment by the customer at the checkout is $9.

Step-by-step explanation:

The amount of the product is given as

$f(x)=\left \{ {{\frac{50}{x^3} \,\,\,\,\, x\geq 5 } \atop {0}} \right.$

Now the expected payment is given as

$EP=\int\limits^{10}_{5} {x f(x)} \, dx +\int\limits^{\infty}_{10} {0.8x f(x)} \, dx$

Here 0.8 x is used in the second integral because of the discount of 20% i.e. the expected price is 80% of the value such that

$\\EP=\int\limits^{10}_{5} {x \frac{50}{x^3}} \, dx +\int\limits^{\infty}_{10} {0.8x \frac{50}{x^3}} \, dx\\\\EP=\int\limits^{10}_{5} {\frac{50}{x^2}} \, dx +\int\limits^{\infty}_{10} {\frac{40}{x^2}} \, dx\\EP=[\frac{50}{-x}]_5^{10} +[\frac{40}{-x}]_{10}^{\infty} \\EP=[\frac{-50}{10}+\frac{50}{5}] +[\frac{-40}{\infty}+\frac{40}{10}]\\\\EP=-5+10+0+4\\EP=9$