Question

What is a pinhole camera? How do we know that these devices existed before the nineteenth century?

Answer 1

Pinhole cameras are objects that have a pinhole camera embeded into them. The size of the pinhole is just as what it says. However, the standard term suggests that a pinhole camera lacks a lens, and a single small aperture. They have existed long before the 19th century, as it was used mostly for undercover and/or general surveillance.

Answer 2

use the drop-down menus to match each phrase with the type of microscope it descr

Answer 3

Converges or Diverges:

Answer 4

The coordinates of triangle ABC are A(u22124, 3), B(2, 3), and C(4, u22121). A line segment runs through the triangle with endpoints Y(0, 1) and Z(3, 1).

Answer 5

What is the most important reason for using hydrates in fire extinguishers?

Answer 6

As part of a class project, a university student surveyed the students in the cafeteria lunch line to look for a relationship between eye color and hair col

Answer 7

Mandy obtains a $155,000 20/6 balloon mortgage with a rate of 4.25%. What will he

Answer 8

how

Answer 9

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Answer 10

Use a tree diagram to explain why the probability that a

Answer 11

What is the probability of rolling a die with the sum greater than or equal to 5?

Answer 12

Data Management (probability):
The Leafsu2019 coach stated that u201cthe likelihoodof us winning the next game are 2/9, the likelihood of tying the next ga

Answer 13

Data Management: A jury of 12 people is to be chosen randomly from a list containing 10 men and 12 women.

Answer 14

CALCULUS II: solve \[\huge{\int\sin^{p-1}\theta d\theta}\]

Answer 15

Choose the correct answers.

Suzie Speedy is insured for bodily injury in the amount of 10/20.

Answer 16

The graph below shows the relationship between the number of cookies made and the number of pans used:

A graph is shown.

Answer 17

Stella set up a business washing cars. She earned $80 in March. She is projected to earn 130% more in April.

Answer 18

Check please
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Answer 19

What is one purpose of Samuel Thurston's article?

Answer 20

Steve needs to take at least 24 milligrams of calcium, 15 milligrams of iron, and 16 milligrams of vitamins.

Answer 21

After years of overhunting, environmental scientists have reintroduced wolverines to Yellowstone National Park.