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Maksim231197 [3]
4 years ago
5

20 - 4x = 2(4 - 8x) This needs solving

Mathematics
2 answers:
Olenka [21]4 years ago
8 0

20 - 4x = 2(4 - 8x)

Make sure to do the parentheses first or factor out first

20 - 4x = 8 - 16x

add 16x to both sides

20 + 12x = 8

Subtract 20

12x = -12

Divide by 8

x = -1

Leviafan [203]4 years ago
4 0

Answer:

x=-4

Step-by-step explanation:

20-4x=4-8x

move variable to the left side and change its sign:

20-4x+8x=4

-4x+8x=4-20

4x=4-20

4x=-16-Divide both sides of the equation by 4

x=-4

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Plz help me with this
Sonbull [250]
1) this is total area of two triangle
area of a triangle=1/2*b*h
A=1/2*9*4
A=18 inches^2
multiply by 2 because there are two triangle with same measure
2A=2*18=36 inches^2

3) this is a area of rectangle and a triangle and then subtract
A2=9.3x7.8= 72.54 
area of triangle A1=1/2*7.8 *3.3=12.87
A2-A1=59.69 mm^2

5) now u ca do it


4 0
3 years ago
What are some problems that equal 492009
saw5 [17]

Answer:

1 + 492008 = 492009

Step-by-step explanation:

OR

200009 + 292000 = 492009

5 0
3 years ago
An advertising campaign is canceled before launch with probability 0.10, in which case the marketing company is fired with proba
Feliz [49]

Answer:

0.2231 (22.31%)

Step-by-step explanation:

defining the event F = the marketing company is fired, then the probability of being fired is:

P(F)= probability that the advertising campaign is cancelled before lunch * probability that marking department is fired given that the advertising campaign was cancelled before lunch + probability that the advertising campaign is launched but cancelled early  * probability that marking department is fired given that the advertising campaign is launched but cancelled early        ....   (for all the 4 posible scenarios where the marketing department is fired)

thus

P(F) =0.10 * 0.74 + 0.18 * 0.43 + 0.43 * 0.16 + 0.29*0.01 = 0.2231 (22.31%)

then the probability that the marketing department is fired is  0.2231 (22.31%)

7 0
3 years ago
9sin(Θ)-7=0. Solve the trigonometric equation
djverab [1.8K]

Step-by-step explanation:

here's the answer to your question

6 0
3 years ago
the following image is a trapazoid.if XW is congruent YZ and measaure of m = 72 degrees. calculate the measure of X
AnnyKZ [126]

Answer:

opposite angle of trapezoid is supplementary

<Z+<X=180°

<X=180°-72°

<x=108°

is your answer

6 0
3 years ago
Read 2 more answers
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