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DedPeter [7]
3 years ago
15

What is the product? (-2d^2+s)(5d^2-6s)

Mathematics
2 answers:
Ulleksa [173]3 years ago
7 0
(-2d^2+s)(5d^2-6s)
= (-2d^2*5d^2 + s*5d^2 -2d^2*-6s + s*-6s
= -10d^4 + 5sd^2 + 12sd^2 - 6s^2
=-10d^2 + 17sd^2 - 6s^2
This is the final result
densk [106]3 years ago
4 0

Answer:

It's B on edge.

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Assuming n1=n2, p1=.4, p2=.7, sampling error=.0 and confidence interval of 99%, estimate (p1-p2)?
Black_prince [1.1K]

Answer:

Step-by-step explanation:

7 0
3 years ago
A large population of variable x is characterized by its known mean value of 6.1 units and a standard deviation of 1.0 units and
scoundrel [369]

Answer:

-6.134 to +6.134

Step-by-step explanation:

given that a large population of variable x is characterized by its known mean value of 6.1 units and a standard deviation of 1.0 units and a normal distribution

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We know that normal distribution curve is bell shaped symmetrical about the mean.

So to find 70% range we can use 35% on either side of the mean

Using std normal distribution table the value of z for which probability from 0 to z is 0.35 is 1.034

Hence corresponding x value is

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i.e. 70% values lie between

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3 0
3 years ago
Read 2 more answers
Working together,edith and rupert can pick 3 quarts of blueberries in an hours.how many quarts can they pick in 7 hours?
expeople1 [14]
Since they pick 3 quarts in 1 hour they can pick 6 quarts in 2 hours and 9 quarts in 3 and so on. So the number of quarts they can pick in a certain amount of hours is just the total number of hours they spend picking times 3 quarts. So since they picked for 7 hours and each of those hours they picked 3 quarts, in total they picked 21 quarts

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3 years ago
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What is the slope? Simplify your answar and write it as a proper fraction, improper fraction, or intiger.​
FrozenT [24]

Answer:

\displaystyle m = \frac{1}{2}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

Coordinate Planes

  • Reading a graph
  • Coordinates (x, y)
  • Slope Formula: \displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify points from graph.</em>

Point (20, 0)

Point (100, 40)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [Slope Formula]:                                                              \displaystyle m = \frac{40 - 0}{100 - 20}
  2. [Order of Operations] Simplify:                                                                        \displaystyle m = \frac{40}{80}
  3. Simplify:                                                                                                             \displaystyle m = \frac{1}{2}
6 0
2 years ago
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