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umka21 [38]
3 years ago
13

the length of a screwdriver is 19 centimeters. the handle is 5 centimeters long . what is the length of the top of the screw dri

ver
Mathematics
1 answer:
svetoff [14.1K]3 years ago
6 0
If the length of the entire screwdriver is 19cm, and the handle is 5cm, subtract the length of the handle from the total length to find the length of the top of the screwdriver.
19 - 5 = 14
The top of the screwdriver is 14cm long.
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Please Help Me. I will mark as Brainlest
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Answer:

275 ft³

Step-by-step explanation:

Given the ratio of radii of 2 similar figures = a : b , then

ratio of volumes = a³ : b³

Here the ratio of radii = 5 : 2 , so

ratio of volumes = 5³ : 2³ = 125 : 8

Calculate the volume (V) of A using proportion

\frac{125}{V} = \frac{8}{88} = \frac{1}{11} ( cross- multiply )

V = 275 ft³

That is the volume of figure A = 275 ft³

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It costs $7.00 to play a very simple game in which a dealer gives you one card from a deck of 52 cards. if the card is a heart,
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Find the measure of angle B using the law of sines
Travka [436]

Answer:  angle B = 15.04104216 degrees approximately

Round that however you need to.

============================================================

Explanation:

The lowercase letters a,b,c are used as side lengths while the uppercase letters A,B,C are the angles.

  • Side 'a' is opposite angle A
  • Side b is opposite angle B
  • Side c is opposite angle c

From the diagram, we have the following info:

  • side b = 22
  • side c = 63
  • side C = 48

Use the law of sines to find B

sin(B)/b = sin(C)/c

sin(B)/22 = sin(48)/63

sin(B) = 22*sin(48)/63

sin(B) = 0.25951089143656

B = arcsin(0.25951089143656)

B = 15.04104216 which is approximate

------------------

Another possible value of B is

B = 180-arcsin(0.25951089143656) = 164.95896

Since

sin(15.04104216) = sin(164.95896) = 0.2595109

However, notice that this leads to

A+B+C = 180

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A + 212.95896 = 180

A = 180 - 212.95896

A = -32.95896

But we cannot have a negative angle. Therefore only one triangle is possible here.

The only solution is approximately B = 15.04104216

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2 years ago
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