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KonstantinChe [14]
3 years ago
11

Sania cut two pieces of string for a craft project. The first piece was 4.07 meters long. The second piece was 6.35 meters long.

Mathematics
1 answer:
Aleks [24]3 years ago
8 0
I believe 10.42 if you add try this if its not on their try dividing by 2
 
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Evaluate cot arcsin 4/5
yan [13]
Evaluated is 4/5
decimal form is 0.8
3 0
3 years ago
Solve the system using substitution.<br> 2x = 5y + 14<br> x = 5y
andrew-mc [135]

Answer:

<h2>y = 2.8</h2><h2>x = 14</h2>

Step-by-step explanation:

To solve an equation, we can only have one variable. In this case, we are given the system 2x = 5y + 14. However, we are given the value of x in terms of y. We can substitute 10y in for 2x and solve.

10y = 5y + 14

First, we need to get all the variables on one side of the equation, so we subtract 5y.

5y = 14

Divide by 5

y = 14/5 or 2 4/5 or 2.8

Now for the x part.

2x = x + 14

Subtract 1x

x = 14

Now we check our answer.

2(14) = 5(2.8) + 14

28 = 14 + 14

28 = 28

Because 28 equals 28, our solutions are correct.

7 0
3 years ago
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
K'Drien has a recipe that needs 3/4 tablespoon of butter for every 2
Orlov [11]

Answer:

6/4. Simplified, is 1 2/4

Step-by-step explanation:

4 0
2 years ago
The position function for the movement of a particle is given by s=(t^3+1)^2 where s is measure in feet and t is measured in sec
Ray Of Light [21]

Answer:

The position of particle at 1 second is 4 feet.            

Step-by-step explanation:

We are given the following in the question:

s(t)=(t^3+1)^2

where s is a position function and measure in feet and t is measured in seconds.

We have to evaluate the position at 1 second.

Putting t = 1 in the position function, we get.

s(1)=((1)^3+1)^2\\s(1) = 4

Thus, the position of particle at 1 second is 4 feet.

3 0
3 years ago
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