3 years ago

Solve the inequality (picture)

Mathematics

1 answer:

drek231 [11]3 years ago

8 0

Answer:

3rd choice

Step-by-step explanation:

Add 6 to both sides to get 5x >= 15, or x >=3. This is the 3rd choice.

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The teacher tells the class the highest marks obtained by a student in her class is twice the lowest marks plus 7 . the highest

Ilya [14]

Answer:

Step-by-step explanation:

highest=2(lowest)+7

Replace the variables here:

87=2(lowest)+7

minus 7 on both sides

80=2(lowest)

divide both sides by 2

40=lowest

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3 years ago

What is the scale factor of AUVWto AXYZ?

Furkat [3]

Step-by-step explanation:

Scale Factor of UVW to XYZ

= XY/UV = YZ/VW = XZ/UW

= 21/3 = 28/4 = 14/2

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2 years ago

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25.3%

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3 years ago

At what points does the helix r(t) = sin t, cos t, t intersect the sphere x2 + y2 + z2 = 65? (round your answers to three decima

Firdavs [7]

$\mathbf r(t)=\langle x(t),y(t),z(t)\rangle=\langle\sin t,\cos t,t\rangle$

$x^2+y^2+z^2=\sin^2t+\cos^2t+t^2=65$
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What is the slope of the line that contains the points (-2, 7) and (2, 3)?

AleksAgata [21]

Answer:

-1

Step-by-step explanation:

We can use the slope formula to find the slope

m = ( y2-y1)/(x2-x1)

= ( 3-7)/(2- -2)

= (3-7)/(2+2)

= -4/4

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