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3 years ago

How many centavos are there

Mathematics

2 answers:

Alchen [17]3 years ago

6 0

Answer:

Step-by-step explanation:

user100 [1]3 years ago

4 0

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

So it's actually simple you take what you know...

24.75 = amount of meter contained in a roll of cotton

9.85 = amount of meter sold

Then you subtract them to get....

24.75 - 9.85 = 14.90

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What is the approximate radius of the disc if the area is 78.5 square inches?

Shtirlitz [24]

$\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ A=78.5 \end{cases}\implies 78.5=\pi r^2\implies \cfrac{78.5}{\pi }=r^2 \\\\\\ \sqrt{\cfrac{78.5}{\pi }}=r\implies 4.99873244587\approx r$

5 0

3 years ago

Read 2 more answers

Two vertical poles of heights 60 ft and 80 ft stand on level ground, with their bases 100 ft apart. A cable that is stretched fr

Andreyy89

Answer:

Step-by-step explanation:

Given

height of two Poles are 60 and 80 ft

Distance between them is 100 ft

Let x be the distance of Pole of ht 80 ft from Point of stretch

thus length of rope is given by

$L=L_1+L_2$

$L_1=\sqrt{80^2+x^2}$

$L_2=\sqrt{60^2+(100-x)^2}$

$L=\sqrt{80^2+x^2}+\sqrt{60^2+(100-x)^2}$

differentiate w.r.t x we get

$\frac{\mathrm{d} L}{\mathrm{d} x}=\frac{2x}{2\sqrt{80^2+x^2}}-\frac{2\left ( 100-x\right )}{\sqrt{60^2+\left ( 100-2x\right )^2}}$

Put $\frac{\mathrm{d} L}{\mathrm{d} x}=0$ to get minimum value

$\frac{2x}{2\sqrt{80^2+x^2}}=\frac{2\left ( 100-x\right )}{\sqrt{60^2+\left ( 100-2x\right )^2}}$

squaring

$x^2\left ( (100-x)^2+60^2\right )=(100-x)^2(80^2+x^2)$

Rearranging

$28x^2-1800x+640000=0$

$x=\frac{400}{7}$

thus $L_1=98.312 ft$

$L_2=73.73 ft$

$L=172.04 ft$

7 0

3 years ago

In segments JM, HK and LI are medians of triangle JHL, what is the name of point N?

FinnZ [79.3K]

Answer: Centroid

Step-by-step explanation:

Medians intersect at the CENTROID

Altitudes intersect at the Orthocenter

Perpendicular bisectors intersect at the Circumcenter

Angle bisectors intersect at the Incenter

8 0

3 years ago

Find the measure of the missing angles. 133° b = C=

podryga [215]

Answer:

<b = 133

<c = 47

Step-by-step explanation:

<b and 133 are vertical angles and vertical angles are equal

<c and 133 form a straight line so they add to 180

<c+133 = 180

<c = 180-133

<c =47

3 0

3 years ago

Please help me with this homework

iragen [17]

Yes it does represent a function

7 0

3 years ago