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Finger [1]
3 years ago
12

Subtract. −3 3/8 − 7/8 Enter your answer, in simplest form, in the box.

Mathematics
2 answers:
pochemuha3 years ago
8 0
-4 and 1/4, -4.25. -17/4, if they ask for one fraction
Naya [18.7K]3 years ago
3 0
<span>−3 3/8 − 7/8
= -(</span>3 3/8 +  7/8)<span>
= -3 10/8
= -4 2/8
= -4 1/4

hope it helps</span>
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a regular hexagonal nut of side 1 cm and length 3 cm with a central hole of diameter 1 cm. 3 cm 1 cm 1 cm. Calculate the volume
Bogdan [553]

Answer:

  5.44 cm³

Step-by-step explanation:

The volume of the hexagonal nut can be found by multiplying the area of the end face by the length of the nut. The end face area is the difference between the area of the hexagon and the area of the hole.

The area of a hexagon with side length s is given by ...

  A = (3/2)√3·s²

For s=1 cm, the area is ...

  A = (3/2)√3(1 cm)² = (3/2)√3 cm²

__

The area of a circle is given by ...

  A = πr²

The radius of a circle with diameter 1 cm is 0.5 cm. Then the area of the hole is ...

  A = π(0.5 cm)² = 0.25π cm²

__

The volume is the face area multiplied by the length, so is ...

  V = Bh = ((3/2)√3 -0.25π)(3) . . . . . cm³

  V = (9/2)√3 -0.75π cm³ ≈ 5.44 cm³

The volume of the metal is about 5.44 cm³.

5 0
2 years ago
Which number is the greatest -1.264,-5/4,-1.015,-0.480,-14/25,-13/8
harina [27]
These are all negative SO the number that is the greatest would be -.480. 
6 0
3 years ago
the metal in a penny is worth about 0.505 cents how many cents is this written as a fraction in simplest form
aivan3 [116]

Hello,

505/1 000 = ( 505 / 5 ) / ( 1 000 / 5 ) = 101/200

Bye :)

5 0
2 years ago
- x3 + 4x2 – 3x + 12 when x = -2​
dmitriy555 [2]

Answer: 42

Explanation:

Image below

6 0
3 years ago
Read 2 more answers
Answer and explain please
Sonja [21]

Answer:

You only need to add more tick marks and you also can multiply by three. 20 times 3 is 60 and 170 times 3 is 360.

8 0
3 years ago
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