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3 years ago

What is the value of the expression below? 2[32-(4-1)^3]

Mathematics

1 answer:

butalik [34]3 years ago

8 0

The value of the expression is 10.

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Rachel drove 320 miles at a rate of 50 miles per hour. How long did it take her to drive that distance

prisoha [69]

Answer:

320/50=6.4

Step-by-step explanation:

Distance + time would give you your SPEED

So you would divide it not multiply

Brainliest plz

6 0

2 years ago

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Find the area of a regular octagon with apothem k and side of 10

Aleonysh [2.5K]

80 i would think but let another answer go first

7 0

3 years ago

A 4-cylinder engine has a bore of 3 inches and a stroke of 3 inches. What’s the total piston displacement

saveliy_v [14]

<u>Answer:</u>

Piston displacement = 84.8

<u>Step-by-step explanation:</u>

We will find the volume of the cylinder in order to find the piston displacement.

Here, (bore = diameter, so r = diameter/2) (height = stroke)

Volume = $\pi r^2h$ $=3.14\times1.5^2\times 3$ = 21.2 cubic units

Since the engine has 4 cylinders, so we will multiply the piston displacement by 4 to get:

Piston displacement = $21.2 \times 4$ = 84.8

6 0

3 years ago

Help me A S A P. PLZZ

Sonbull [250]

12.56 + (4*6)

12.56+24

4 0

3 years ago

Determine whether or not f is a conservative vector field. if it is, find a function f such that f = ∇f. (if the vector field is

sineoko [7]

$\mathbf f(x,y)=(ye^x+\sin y)\,\mathbf i+(e^x+x\cos y)\,\mathbf j$ is continuous, so $\mathbf f(x,y)$ is indeed conservative. So we know there is some scalar function $f(x,y)$ such that $\nabla f(x,y)=\mathbf f(x,y)$ .

$\dfrac{\partial f}{\partial x}=ye^x+\sin y$
$\displaystyle\int\frac{\partial f}{\partial x}\,\mathrm dx=\int(ye^x+\sin y)\,\mathrm dx$
$f(x,y)=ye^x+x\sin y+g(y)$

$\dfrac{\partial f}{\partial y}=\dfrac{\partial(ye^x+x\sin y+g(y))}{\partial y}$
$e^x+x\cos y=e^x+x\cos y+g'(y)$
$0=g'(y)$
$\implies g(y)=C$

So we have

$f(x,y)=ye^x+x\sin y+C$

7 0

3 years ago