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3 years ago

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle?

Mathematics

2 answers:

aliya0001 [1]3 years ago

6 0

I think it is D) 45,45, 90

Nikolay [14]3 years ago

5 0

The answer is C) 30°, 30°, 90°
Hope this helps. :)

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A cone is placed inside a cylinder as shown. The radius of the cone is half the radius of the cylinder. The height of the cone i

Dovator [93]

we can use

volume of cone formula

$V=\frac{1}{3} \pi r'^2 h'$

where

r' is radius of cone

h' is height of cone

we are given

The radius of the cone is half the radius of the cylinder

so,

$r'=\frac{r}{2}$

The height of the cone is equal to the radius of the cylinder

so,

$h'=r$

now, we can plug values into formula

we get

$V=\frac{1}{3} \pi (\frac{r}{2})^2*r$

we can simplify it

$V=\frac{1}{12} \pi r^3$

so, option-C.........Answer

7 0

3 years ago

C.) Apple offers a buyback program for iPhones after they are 5 years old. They

max2010maxim [7]

Answer: It would not be profitable to sell it back for 100$.

Step-by-step explanation:

It would not be profitable because you might have payed 300-1000$ (Depending what phone you buy) for your phone. It would only be profitable for the older generation of the phones like iPhone 5 and iPhone 6.

4 0

3 years ago

The average cost per unit for the production of a certain brand of DVD is given by C=\frac{500+60c+0.01x^2}{x} , where x is the

Ganezh [65]

Answer:

A: for 500: 66; for 60: 68.9; for 100: 66

B: no

Step-by-step explanation:

We assume your average cost function is ...

$\overline{C}=\dfrac{0.01x^2+60x+500}{x}$

A. The overline over the C indicates it is an average value.

Evaluating the cost function at the different production levels, we find the average cost per unit to be ...

500 units

c = ((0.01·500)+60)500 +500)/500 = 65 +1 = 66

60 units

c = ((0.01·60 +60)·60 +500)/60 = 60.6 +500/60 ≈ 68.93

100 units

c = ((0.01·100 +60)·100 +500)/100 = 61 +5 = 66

B. Dividing out the fraction, we find that the cost per unit is ...

0.01x +60 +500/x

As x gets large, this approaches the linear function c = 0.01x +60. This increases as the number of units produced rises. (The minimum average cost is at a production level of about 224 units.)