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Verdich [7]
3 years ago
15

What’s 1/6 plus 1.5?

Mathematics
1 answer:
Ivan3 years ago
3 0
The answer would be 1.6667, 1 2/3, or 8/3. All of those are the same thing. Hope this helps!
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What are the signs of the x- and y-coordinates of points within each of the four quadrants in the coordinate plane?
Naily [24]
In the first quadrant the signs would be (x,y) in the second quadrant they would be (-x,y) in the third (-x,-y) and the fourth (x,-y)
5 0
3 years ago
Find the length of chord AD
Ket [755]

9514 1404 393

Answer:

  AD = 15

Step-by-step explanation:

The products of the segment lengths are the same.

  (x -2)(x +7) = 4(2x -1)

  x^2 +5x -14 = 8x -4

  x^2 -3x -10 = 0

  (x -5)(x +2) = 0

The positive solution is x=5.

Chord AD is ...

  (x -2) +(x +7) = 2x +5 = 2(5) +5 = 15

Chord AD is 15 units long.

7 0
3 years ago
Arsenic is a compound that occurs naturally in very low concentrations. Arsenic blood concentrations in healthy adults are Norma
DENIUS [597]

Answer:

0.7325 to 5.6675 ug/dl

Step-by-step explanation:

The middle 90% will be 45% above the mean and 45% below the mean.  This means

0.5-0.45 = 0.05 and

0.5+0.45 = 0.95

We use a z table.  Look in the cells; find the values as close to 0.05 and 0.95 as we can get.

For 0.05, we have 0.0505 and 0.0495; since these are equidistant from 0.05, we use the value between them.  0.0505 is z=-1.64 and 0.0495 is z=1.65; this gives us z=-1.645.

For 0.95, we have 0.9495 and 0.9505; since these are equidistant from 0.95, we use the value between them.  0.9495 is z = 1.64 and 0.9505 is z=1.65; this gives us z = 1.645.

Now we use our z score formula,

z=\frac{X-\mu}{\sigma}

Our two z scores are 1.645 and -1.645; our mean, μ, is 3.2; and our standard deviation, σ, is 1.5:

1.645=\frac{X-3.2}{1.5}

Multiply both sides by 1.5:

1.5(1.645)=\frac{X-3.2}{1.5}\times 1.5\\\\2.4675 = X-3.2

Add 3.2 to each side:

2.4675+3.2 = X-3.2+3.2

5.6675 = X

-1.645=\frac{X-3.2}{1.5}

Multiply both sides by 1.5:

1.5(-1.645)=\frac{X-3.2}{1.5}\times 1.5\\\\-2.4675=X-3.2

Add 3.2 to each side:

-2.4675+3.2 = X-3.2+3.2

0.7325 = X

Our range is from 0.7325 to 5.6675.

5 0
3 years ago
Two vertices of a right triangle have coordinates (3, 7) and (3, 10) . The segment that connects these points is a leg of the tr
pogonyaev
The answer would be (8,7) because it has the same y coordinate as (3,7)
7 0
3 years ago
Is 7 a solutions to the compound inequality "-3 < x < 6 "
Angelina_Jolie [31]

7 cannot be the solution of compound inequality -3 < x < 6

Step-by-step explanation:

We need to find if  7 a solutions to the compound inequality -3 < x < 6

The compound inequality -3 < x < 6 states that the value of x can be greater than -3 but less than 6

Since 7 is greater than 6 so, 7 can't be the solution of compound inequality.

So, 7 cannot be the solution of compound inequality -3 < x < 6

Learn more about compound inequality at:

brainly.com/question/1465430

brainly.com/question/1858613

brainly.com/question/6703816

Keywords: compound inequality

#learnwithBrainly

4 0
3 years ago
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