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hoa [83]
3 years ago
7

Dailene has 30 CD's and buys two new ones each week. Renae has 18 CD's and buys 4 new ones each week. after now many weeks will

Dailene and Renae have the same number of CD's
Mathematics
1 answer:
Naddika [18.5K]3 years ago
3 0
6 Weeks is the awnser
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0.3d-1/3=0.84:7/15 if this my real number and giving 25
DIA [1.3K]

Answer:

skp

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ME!!!!! and please dont be rude and answer just to get point i really need help please and thank you :)
N76 [4]

Answer: Just work step by step managers

Step-by-step explanation:

8 0
3 years ago
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HELp Help Help... fnljwbfjwopfowq
makkiz [27]
Answer:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
x-(3*x^3+8*x^2+5*x-7)=0
Step by step solution :Step 1 :Equation at the end of step 1 : x-((((3•(x3))+23x2)+5x)-7) = 0 Step 2 :Equation at the end of step 2 : x - (((3x3 + 23x2) + 5x) - 7) = 0 Step 3 :Step 4 :Pulling out like terms :
4.1 Pull out like factors :
-3x3 - 8x2 - 4x + 7 =
-1 • (3x3 + 8x2 + 4x - 7)
Checking for a perfect cube :
4.2 3x3 + 8x2 + 4x - 7 is not a perfect cube
Trying to factor by pulling out :
4.3 Factoring: 3x3 + 8x2 + 4x - 7
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: 3x3 - 7
Group 2: 8x2 + 4x
Pull out from each group separately :
Group 1: (3x3 - 7) • (1)
Group 2: (2x + 1) • (4x)

Please 5 star and like. Appreciated
8 0
3 years ago
A man weighing 800 N is hanging from a 2 mm diameter titanium wire with a cross-section of 3 x 10^-6 m^2. Will the wire break?
DENIUS [597]

Answer:

Since stress is greater than ultimate strength, the wire will break.

Step-by-step explanation:

The titanium wire is experimenting an axial load. Ultimate strength equals 2.20\times 10^{8}\,Pa. The wire shall break if and only if stress is at least equal to ultimate strength. The equation for axial stress (\sigma), measured in pascals, in the wire with circular cross-section is:

\sigma = \frac{4\cdot F}{\pi\cdot D^{2}} (1)

Where:

F - Axial force, measured in newtons.

D - Cross-section diameter, measured in meters.

Please notice that axial force is the weight of the man hanging from wire.

If we know that F = 800\,N and D = 0.002\,m, then the axial stress experimented by the titanium wire is:

\sigma = \frac{4\cdot (800\,N)}{\pi\cdot (0.002\,m)^{2}}

\sigma \approx 2.546\times 10^{8}\,Pa

Since stress is greater than ultimate strength, the wire will break.

3 0
3 years ago
the surface area of a sphere is 804 .25 m2,to find the radius of the sphere to the nearest world number​
Lady_Fox [76]

Answer:

256

Step-by-step explanation:

804.25 divided by 3.14

4 0
3 years ago
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