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3 years ago

You are buying a pair of shoes online. The price of the

Mathematics

1 answer:

MrRissso [65]3 years ago

8 0

Answer:

Ok so I think I know the answer.

Since there is a 6.5% shipping fee I am pretty sure you have to divide 6.5% of 29.99 which would be 1.94. Hope this Helps!

Answer: $1.94 shipping fee

Step-by-step explanation:

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Lawrence buys his friends candy in the morning for $3 a box, but forgot some of his friends, so he went back to the candy shop a

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3 • t + 6 • t = the amount he spent

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2 years ago

There are 17.8 grams of salt in a solution. If 5.9 grams of salt are added to the solution, how many grams of salt will be in th

astraxan [27]

Answer:

Step-by-step explanation:

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3 years ago

Find the absolute maximum and minimum values of f(x,y)=xy−4x in the region bounded by the x-axis and the parabola y=16−x2.

skad [1K]

Answer:

The absolute maximum and minimum is $20\; \text{and} -20.$

Step-by-step explanation:

We first check the critical points on the interior of the domain using the

first derivative test.

$f_x=y-4=0$

$f_y=x=0$

The only solution to this system of equations is the point (0, 4), which lies in the domain.

$f_{xx}=0, \;f_{yy}=0\; \text{and}\; f_{xy}=-1$

$\Rightarrow f_{xx}f_{yy}-f_{xy}=o-1=-1$

$\therefore (0,4)$ is a saddle point.

Boundary points - $(4,0), (-4,0), (0,16)$

Along boundary $y=16-x^2$

$f=x(16-x^2)-4x$

$=16x-x^3-4x$

$\Rightarrow f^'=16-3x^2-4=0$

$\Rightarrow 3x^2=12$

$\Rightarrow x=\pm2,\;\;y=14$

Values of f(x) at these points.

$\begin{array}{}(4,0)=-16\\(-4,0)=16\\(0,16)=0\\(2,14)=20\\(-2,14)=-20\end{array}$

Therefore, the absolute maximum and minimum is $20\; \text{and} -20.$

6 0

3 years ago

The surface area of sphere T is 452.16 units squared. The surface area of sphere X is 1808.64 units squared. how many times larg

Art [367]

Answer:

the radius of sphere X is 2 times larger than the radius of sphere T

Step-by-step explanation:

Given

Surface area of sphere, T =452.16

Surface area of sphere, X= 1808.64

how many times larger is the radius of sphere X than the radius of sphere T?

Finding radius of both spheres:

Surface area of sphere is given as

A=4πr^2

Now putting value of Ta=452.16 in above formula

452.16=4πrt^2

rt^2=452.16/4π

rt^2=35.98

Taking square root on both sides

rt=5.99

Now putting value of Xa=1808.64 in above formula

1808.64=4πrx^2

rx^2=1808.64/4π

rx^2=143.92

Taking square root on both sides

rx=11.99

Comparing radius of sphere X and the radius of sphere T

rx/rt=11.99/5.99

= 2.00

rx=2(rt)

Hence the radius of sphere X is 2 times larger than the radius of sphere T!

3 0

3 years ago

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What is the axis of a graph used for? Select all that apply. a starting point with equal intervals that follow a stopping point

Ronch [10]

Answer:

A scale to plot data

It is hard to tell the difference between the choices. If they are the following:

a starting point with equal intervals that follow
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3 0

2 years ago

Read 2 more answers