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3 years ago

(x-4)*(x-9)=0 what is x

Mathematics

2 answers:

Alex17521 [72]3 years ago

6 0

Answer:

4, 9

Step-by-step explanation:

(x-4)(x-9)=0

x-4=0, x-9=0

x=0+4=4

x=0+9=9

Strike441 [17]3 years ago

4 0

Answer:

x either equals to 4 of 9 so you can write it like x=4, 9

Step-by-step explanation:

Start by simplifying each sides of the equation.

x^2-13x+36=0

Then factor the left side of the equation.

(x-4)(x-9)=0

Set factors equal to 0

x-4=0 or x-9=0

x=4 or x=9

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4 years ago

Which is the equation in point-slope form of the line that passes through the point (1,-1) and has a slope of 4

Leviafan [203]

Answer:

y = 4x -5

Step-by-step explanation:

Gradient is also known as slope . The gradient of a line is represented by the equation

Slope (m) = y - y1/ x - x1

Where m = 4 , x1= 1 and y1 = -1

Imputing the values into the equation

m = y - y1/ x - x1

4 = y - -1/x - 1

Cross multiply, we have

y + 1= 4(x - 1)

Expand

y+1= 4x - 4

Subtract 1 from both sides

y+1-1= 4x -4-1

y = 4x -5

I hope this was helpful, please mark as brainliest

7 0

4 years ago

PLEASE HELP ASAP<br> A. 0<br> B.2<br> C. 4<br> D.6

olchik [2.2K]

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3 years ago

6. draw a circle and named it E

Katarina [22]

Answer:

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Step-by-step explanation:

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2 years ago

During a walk a thon,noahs time in hours was,t,and distance in miles,d,are related by the equation 1/3d=t .A gragh of the equari

PtichkaEL [24]

Question:

During a walk-a-thon, Noah's time in hours was t, and distance in miles, d, are related by the equation $\frac{1}{3}d = t$ . A graph of the equation includes points (12,4).

1. Identify the independent variable.

2. What does the point (12,4) represent in this situation?

3. What point would represent the time it took to walk $7\frac{1}{2}$ miles?

Answer:

(a) d

(b) He spent 4 hours to walk 12 miles

Step-by-step explanation:

Given

$t = \frac{1}{3}d$

Solving (a): The independent variable

The independent variable, in this problem is the distance walked. Because the distance walked stands alone, and it is when the distance is known, that the time spent is known.

Hence:

The independent variable is distance (d)

Solving (b): What (12, 4) represents

This implies that:

$distance = 12$