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STatiana [176]
2 years ago
7

PLEASE HURRY A sundial has circular dial and a right triangle shaped piece, called a gnomon. One of the angles of the gnomon is

52°What is the measure of the smallest angle of the gnomon?
A.38
B.90
C.142
D.218
Mathematics
2 answers:
qaws [65]2 years ago
8 0

The three inside angles of a triangle need to equal 180 degrees.

In a right triangle one of the angles is 90 degrees.

This means the other two angles need to equal 180-90 90 degrees.

You are given one of the angles of 52 degrees, so subtract that from 90 to find the third angle.


90 - 52 = 38 degrees.

The answer is A.

lozanna [386]2 years ago
6 0

Answer:

38

Step-by-step explanation:

..

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2 years ago
the jellybean jar has a radius of 4.8 cm and a height of 11.8 cm. what would be a reasonable lower limit for the number of jelly
azamat

Answer:

           \large\boxed{\large\boxed{100}}

Explanation:

This question comes with four answer choices:

  • 10,000
  • 100,000
  • 100
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You just need to find a rough estimate of the volume of the jar and the volume of one jelly bean. This is called magnitude order.

The <em>jellybean ja</em>r is cylindrical, Thus, its volume is \pi \times radius^2\times height

To find the order of magnitude, you just use the numbers rounded to one signficant figure: round π to 3, the radius to 5, cm, and the height to 10:

            Volume\approx 3cm\times (5cm)^2\times10cm=750cm^3\approx1,000cm^3

The order of magnitude for the radius of a jellybean is 1 cm. And the order of magnitude of the volume of a sphere with a radius of 1 cm is the cube of the diameter (2cm):

             (2cm)^3=8cm^3\approx10cm^3

Hence, a reasonable lower limit for the number of jellybeans in the jar is:

                     1,000cm^3/10cm^3=100

7 0
2 years ago
The product of a number and 3 more than twice the number is 275. Find the number.
Gnom [1K]

Answer:

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Step-by-step explanation:

if you do 3 times a number, 3x and twice more, 2x , that would be 5x divided by 275 which would be 55.

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The marching band walks 1/15 miles in 1.5 minutes. At this rate, how many minutes will it take to complete 1 mile? Record your a
ipn [44]

Answer:

It will take 22.5 minutes to complete 1 mile

Step-by-step explanation:

From the question,

The marching band walks 1/15 miles in 1.5 minutes

First we will determine the miles cover in 1 minute

If the marching band walks 1/15 miles in 1.5 minutes

then, they will cover x miles in 1 minute

x = \frac{1/15 * 1}{1.5}\\

Then,

x = \frac{1/15 }{1.5}

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If 2/45 miles are covered in 1 minute

Then, 1 mile will be covered in y minute

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