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Arturiano [62]
3 years ago
6

Find the sum. Do not round. 39.882 + 11.03 =

Mathematics
2 answers:
Shkiper50 [21]3 years ago
5 0
The answer not rounded is 50.91200
lukranit [14]3 years ago
3 0
The answer is 50.912

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The heights of women in the united states are normally distributed with a mean of 64 inches and a standard deviation of 2.75 inc
9966 [12]
According to the normal distribution curve:

<span>"the percent of women whose heights are between 64 and 69.5 inches"</span> represents the values within 2 standard deviation ,,,

And that value is 95% of the whole data



7 0
3 years ago
I need to solve for 3x+7=-x-1
Andrew [12]

3x+7=-x-1

move -x to the other side

sign changes from -x to +x

3x+x+7=-x+x-1

3x+x+7=-1

4x+7=-1

move 7 to the other side

sign changes from +7 to -7

4x+7-7=-1-7

4x=-8

Divide by 4 for both sides

4x/4=-8/4

Answer: x=-2

3 0
3 years ago
What are the partial products of 42×5
ale4655 [162]
The partial would be
40x5=200
2x5=10
210
Your just breaking them apart
8 0
3 years ago
Ashley bought bag of oranges at the grocery store she gave half of the oranges to David then she gave Erin 6 oranges and Kept th
andreev551 [17]
The answer would be 16. She gave Erin 6 and kept two. That would be 8 oranges between the two of them and David got half, making the total 16 oranges.

5 0
3 years ago
Read 2 more answers
If a polynomial has one root in the form a+√b , it has a second root in the form of a_√b
gulaghasi [49]
When roots of polynomials occur in radical form, they occur as two conjugates.
That is,
The conjugate of (a + √b) is (a - √b) and vice versa.
To show that the given conjugates come from a polynomial, we should create the polynomial from the given factors.

The first factor is x - (a + √b).
The second factor is x - (a - √b).

The polynomial is
f(x) = [x - (a + √b)]*[x - (a - √b)]
      = x² - x(a - √b) - x(a + √b) + (a + √b)(a - √b)
      = x² - 2ax + x√b - x√b + a² - b
      = x² - 2ax + a² - b

This is a quadratic polynomial, as expected.

If you solve the quadratic equation x² - 2ax + a² - b = 0 with the quadratic formula, it should yield the pair of conjugate radical roots.
x = (1/2) [ 2a +/- √(4a² - 4(a² - b)]
   = a +/- (1/2)*√(4b)
   = a +/- √b
x = a + √b, or x = a - √b, as expected.
3 0
3 years ago
Read 2 more answers
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