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lbvjy [14]
3 years ago
12

Jack says ‘3 and 13 are both prime numbers, all whole numbers that end in 3 a prime numbers’. Write down an example that proves

that this statement is not true
Mathematics
1 answer:
Usimov [2.4K]3 years ago
3 0

A seven is a prime number because you can't divide it. 33 is a composite number because three can go into 33.

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Question is on the photo
Kaylis [27]

g=

   2x+5

    -----    

     x

g(1) g=2x+5

8 0
2 years ago
An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find the work (in J) needed to pump half of the water out of the
Nitella [24]

Answer:

W=2452.5 J

Step-by-step explanation:

The work is define as the integral of the force times distance. So we have:

W=\int^{a}_{b}Fxdx

Now, we can write the force in terms of density.

F=m*g=\rho Vg

V is the volume (V=2*1*1=2 m³)

So the work will be:

W=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0}19620xdx=19620(\frac{x^{2}}{2})|^{0.5}_{0}

The limit of integration is between 0 and 0.5 because we want to pump half of the water out of the aquarium.

W=19620(\frac{x^{2}}{2})|^{0.5}_{0}=19620(\frac{0.5^{2}}{2})

W=2452.5 J

I hope it helps you!

8 0
3 years ago
Plot the point (4, −3). Start at the origin. Move 4 units . Move 3 units . The point is at .
Naily [24]

Answer:

the point is D

Step-by-step explanation:

brainliest plz

7 0
2 years ago
Read 2 more answers
What is the volume of the cone? use 3.14
Svet_ta [14]
To find the volume of the cone use the formula:

3.14r^2 h/3

Final Answer:

20.93 cubic units
8 0
3 years ago
Given a term in the geometric sequence and the common ratio find the first five terms the explicit form and the recursive formul
Pani-rosa [81]
A1 = 4
a2 = 5a1 = 5 x 4 = 20
a3 = 5a2 = 5 x 20 = 100
a4 = 5a3 = 5 x 100 = 500
a5 = 5a4 = 5 x 500 = 2,500

Tn = ar^(n-1); where a = 4, r = 5
Tn = 4(5)^(n-1) = 4/5 (5)^n
Explicit formular is Tn = 4/5 (5)^n

Recursive formular is a_{n+1} = 5a_{n-1}
5 0
3 years ago
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