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Sloan [31]
3 years ago
5

Solve w^2+13w+42=0 by factoring.

Mathematics
2 answers:
Bingel [31]3 years ago
4 0
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
w = -6, -7
Hope this helps! :)
andre [41]3 years ago
3 0
The answer is therefore (w+7)(w+6), meaning the zeros are -7 and -6
Hope this helps

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A cylinder has a diameter of 10 and a height of 10. what is the volume
Zigmanuir [339]

Answer:

785 unit^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

We know the diameter

r = d/2 = 10/2 =5

Substituting in what we know

V = pi (5)^2 (10)

   = 3.14 (25) (10)

    =785

7 0
3 years ago
28 Jess bought a new car for £12 000.
devlian [24]

The value of the car after three years is £6936

<h3>How to determine the value of the car?</h3>

The initial value of the car is given as:

Value =  £12000

When the value depreciates by 20% after the first year, the new value of the car is:

New =  £12000 * (1 - 20%)

Evaluate

New =  £9600

When the value depreciates by 15% after the second year, the new value of the car is:

New =  £9600* (1 - 15%)

Evaluate

New =  £8160

When the value depreciates by 15% after the third year, the new value of the car is:

New =  £8160 * (1 - 15%)

Evaluate

New =  £6936

Hence, the value of the car after three years is £6936

Read more about depreciation at:

brainly.com/question/25297296

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7 0
2 years ago
Solve the equation.<br> 4(x + 2) = 40
puteri [66]

Answer:

X=9

Step-by-step explanation:

4x+8=40

4x=40-8

4x=32

X=9

3 0
2 years ago
Read 2 more answers
Provide an explanation and the calculations please.
IgorC [24]

Answer:

PLZ GIVE ME BRANLIEST =)))

1. A scientific notation is where you multiply any number by a power of 10 (negative or positive or neutral).

2. This is incorrect, because 3.825*10^6 is actually 3,825,000. The correct answer is 3.825*10^5.

3a) The power is supposed to be negative, since the number is decreasing, not increasing. It is 4.25*10^-5. 3b) The processes are alike in the way that they all have a number being multiplied by a power of 10. They are all different in the way that some numbers can be decimals, and some powers can be negative powers.

6 0
3 years ago
Read 2 more answers
Just that one need answers
dybincka [34]

Answer:

57-c=5³=72(89^yso)Ох o3 хigle is 180

VXAB=BC,AM=MC

BM IAC , EF I BC(7,6)AB

MA

B

F

с

A1.38371248486w92(iws2937372.28291928373773*^2d)

Step-by-step explanation:

Ох o3 х=5429

8 0
3 years ago
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