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Dmitry [639]
4 years ago
6

A pair of reading glasses shows you an image of an object that is 3.1 times the object's actual size. So the scale factor of the

enlargement is 3.1. The photo shows the glasses magnifying the Constitution by a scale factor of 3.1. If the average text size was magnified at being a height of 0.8 inches, how big must the actual text size be (round to the nearest thousandth)?
Mathematics
1 answer:
KiRa [710]4 years ago
3 0

When given the scale factor and the factored size of the object, to find the original size, divide the factored size by the scale factor:


0.8 / 3.1 = 0.258 inches



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a number cubes tolled 450 times. the number 3 comes up 67 times. what I's the theoretical probability of rolling a 3 ? WRITE YOU
zvonat [6]
Assuming number cube has 6 sides

probablity is (desiredoutcomes)/(total possible ouctomes)


since it is 450 times
total possible outcomes=450

experimiental probablity is the one actaully obtained by doing it
theoretical is the predicted amount

so theoretical probablity of rolling a 3 is 1 number out of 6 or 1/6 or 75 times out o 450 times

experimiental is the actaull one so67 out of 450 or 67/450

theoretical is 1/6 or 75/450
experimental is 67/450



4 0
3 years ago
The Angle of depression from the top of the flagpole to an object on the ground it's 33° if the object is 60 feet from the base
N76 [4]

Answer:

The flag pole is 38.96 feet tall.

Step-by-step explanation:

The angle of depression from the top of the flagpole to an object on the ground is 33°.

The object is 60 feet from the base of the cliff.

We need to find the height of the flag pole.

Here, base, B = 60 feet

We know that,

\tan\theta=\dfrac{P}{B}

Put all the values to find P.

P=B\times \tan\theta\\\\P=60\times \tan(33)\\\\P=38.96\ ft

So, the flag pole is 38.96 feet tall.

6 0
3 years ago
One number is four times another number. The sum of their reciprocals is 1/4 . What is the answer
Yakvenalex [24]
Using the information from the question, one can construct two equations:

4 z = x  ...  (1)

\frac{1}{z}  +   \frac{1}{x}   ... (2)

by substituting (1) into (2) to find x

\frac{1}{z} +  \frac{1}{4z}  =   \frac{1}{4}

\frac{5}{4z}  =   \frac{1}{4}

\frac{5}{4z}  =   \frac{1}{4}  

\frac{4z}{5}  =   \frac{4}{1}

\frac{4z}{1}  =   \frac{20}{1}

z =   \frac{20}{4}

⇒ z = 5

By substituting value of z into (1)

⇒ 4 (5) = x

⇒ x = 20

Thus the two numbers are 5 & 20 



4 0
4 years ago
Read 2 more answers
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lawyer [7]
The answer is a

Hope this helpedu
3 0
3 years ago
If g(x) = x^2 + 2, find g(3). 9 8 11 6
creativ13 [48]

The answer is 11.

3^2=9

+2=11

7 0
3 years ago
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