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Anna [14]
3 years ago
7

The heights of 200 adults were recorded and divided into two categories.

Mathematics
1 answer:
Nesterboy [21]3 years ago
7 0

Answer:

The correct answer would be Table A in your case.

Step-by-step explanation:

12 + 3 = 15

86 + 99 = 185

and 98 + 102 = 200

Meaning those are true statements.

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Can anyone pls pls pls help me in dis pls I will mark u as brainliest!!!!
motikmotik

Answer:

See below.

Step-by-step explanation:

Infinite Solutions:

1. \:\:n=n\\\\2.\:\:y\cdot -6\cdot -3=2\cdot y\cdot 9\\\\3. \:\:5-9+3x=-10+6+3x\\\\4. \:\:2t+6=2(t+3)\\

No Solutions:

1. \:\:v+2=v-2\\\\2.\:\:\frac{1}{4}\left(20d+4\right)=5d\\\\3.\:\:3\left(n+1\right)=3n+1\\\\4.\:\:\frac{1}{2}+x=\frac{1}{3}+x

5 0
4 years ago
in a film, a character is criticized for marrying a woman when he is three times her age. he wittily replies "ah, but in 20 year
Igoryamba

Answer:

W = 20 (woman's age)

M = 60 (man's age)

Step-by-step explanation:

M = Man's age

W = Woman's age

M + 20 = 2(W + 20)

Sub for M

3W + 20 = 2W + 40

W = 20 (woman's age now)

M = 60 (man's age now)

7 0
3 years ago
I don’t know how to do this. Can someone help?
Aleks04 [339]

Answer:

x1=8

x2=1/5

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
11. Suppose a force F varies as the product of two masses, m and M, inversely as
almond37 [142]

Answer:

k = 6.74 * 10^{-5}

Step-by-step explanation:

Given

F\ \alpha\ \frac{m * M}{r^2} --- The variation

F = 675; m = 125; M = 225; r = 0.0530

Required

Determine the constant of proportionality (k)

F\ \alpha\ \frac{m * M}{r^2}

Express as an equation

F = k\frac{m * M}{r^2}

Multiply both sides by r^2

Fr^2 = km * M

Make k the subject

k = \frac{Fr^2}{m * M}

Given that: F = 675; m = 125; M = 225; r = 0.0530

We have:

k = \frac{675* 0.0530^2}{125 * 225}

k = \frac{1.896075}{28125}

k = 0.000067416

This can be represented as:

k = 6.74 * 10^{-5}

5 0
3 years ago
If triangle abc is reflected over the x-axis, reflected over the y-axis, and rotated 180 degrees, where will point b' lie?
notsponge [240]

Answer:

Step-by-step explanation:

The triangle would end up back where it started.  It is hard to explain without a graph.  If you have graph paper, you might want to try drawing this out.  Say that the original points are at A (1,2) B (2,0) and C(0,0).  Now, when we reflect the points over the x axis, they will be the same distance below the x that the points original were about the x axis.  Since A was 2 units above the axis, it will now be 2 units below at (1, -2).  Points B and C will stay on the x axis and will remain in place at B(2.0) and C(0,0).  Since these points are on the line, they were not above the x axis, so they will now not be below the x axis.

Now, we are going to reflect the triangle over the y axis.  Since C (0,0) is already on the y axis, it will not move.  It will remain there.  Since B(2,1) is two units to the right of the y axis, when we flip it, it will now be 2 units to the left of the y axis B (-2,0).  Point C will move one unit to the left of the y axis to become (-1,2).

The last thing left it to rotate this final triangle 180 degrees.  Since a circle is 360 degrees and 180 is half of a circle, it does not matter if we rotate clockwise or counter-clockwise.  If you could trace our new triangle and put a plus sign at the origin (0,0).  You would put your pencil on the origin  and rotate the two turns at the plus sign.  This would put your triangle right back to the beginning.  So the original value of B would be the same.  In this case C ((2,0)

8 0
2 years ago
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