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Pachacha [2.7K]
3 years ago
13

HELP ME FOR BRAINLIEST

Mathematics
1 answer:
love history [14]3 years ago
3 0

Answer:

4

Step-by-step explanation:

PEMDAS

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The straight line ℓ is perpendicular to the line y + 2x = 9 and passes through the point p(4, 3). find the x-intercept of ℓ.
evablogger [386]
The slope of the line l is the opposite reciprocal of y+2x=9. Rearranged the equation to y=9-2x and we get a slope of -2. The opposite reciprocal of -2 is 1/2.

y-y=m(x-x)
y-3=.5(x-4)
y=.5x+1

At the x-intercept, y=0, so
0=.5x+1
-1=.5x
x=-2
8 0
3 years ago
Calculate the speed in km/hour of a car that travels 24 km in 120 minutes
bonufazy [111]

Answer:

12

Step-by-step explanation:

120 minutes is 2 hours so you just divide 24 by 2 :)

8 0
3 years ago
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8. John's kite is 45 ft above the ground.
skad [1K]

Answer:30

Step-by-step explanation:

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2 years ago
How do you explain a diameter of 0.00085 inches using scientific notation
dezoksy [38]

Answer:

8.5 E^{-4} inches

Step-by-step explanation:

        Scientific scientific notation  is where the super small / super large number is multiplied by a 10 (E) to the power of a number. Here, the number is smaller than 8.5 so our power must be negative. As we are making it four "places" bigger, we use the exponent of -4.

Hope this helps, have a nice day! :D

8 0
2 years ago
!!!!!!!!PLEASE HELP!!!!!!!!
zloy xaker [14]

Answer:

Step-by-step explanation:

128 divided 2 times X or 128/2 * X

then

128/2 * 5

7 0
3 years ago
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