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andreev551 [17]
3 years ago
7

What is, 2.3 + (8.4 + 6.4) = 17.1 in word form?

Mathematics
1 answer:
avanturin [10]3 years ago
8 0
Two point 3 plus in parentheses eight pont four plus six point four close parentheses equals seventeen point one
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1. What is the marginal distribution of individuals who are underweight?
Katena32 [7]

Answer:

Step-by-step explanation:

You have to divide the TOTAL underweight which is 130, into the total of individuals which is 1000. 130/1000= 0.13 or 13.0%

Answer C.

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Find a unit vector in the direction of the vector left bracket Start 3 By 1 Matrix 1st Row 1st Column negative 8 2nd Row 1st Col
MrRissso [65]

Answer:

\left[\begin{array}{c}-\frac{8}{\sqrt{117} } \\\frac{7}{\sqrt{117} }\\\frac{2}{\sqrt{117} }\end{array}\right]

Step-by-step explanation:

We are required to find a unit vector in the direction of:

\left[\begin{array}{c}-8\\7\\2\end{array}\right]

Unit Vector, \hat{a}=\dfrac{\overrightarrow{a}}{|\overrightarrow{a}|}

The Modulus of \overrightarrow{a} =\sqrt{(-8)^2+7^2+(-2)^2}=\sqrt{117}

Therefore, the unit vector of the matrix is given as:

\left[\begin{array}{c}-\frac{8}{\sqrt{117} } \\\frac{7}{\sqrt{117} }\\\frac{2}{\sqrt{117} }\end{array}\right]

5 0
3 years ago
In my number the digit in the ones place is double the digit in the tens place. the sum of the digits is 3
jasenka [17]
The number is 21 because 2 is 1 doubled, and 2+1 is 3.
6 0
3 years ago
An online video store charges $24 please help
mr Goodwill [35]

Answer:

B. 24d + 4; $76

Step-by-step explanation:

Part 1: If the online store charges $24 per DVD, this is the same as saying "24 multiplied by the number of DVDs bought".

It's given that "d" represents the number of DVDs

  • So the first part of the variable expression is: 24d

If the online store also charges an additional $4 per <em>order,</em> that means that it's only $4 extra for the whole order. NOT per DVD you buy.

  • Result: 24d + 4

Part 2: If someone were to buy 3 DVDs, that would mean that d = 3.

To find the total cost, substitute 3 for d into the expression.

  • 24d + 4
  • 24(3) + 4
  • 72 + 4 = 76
  • Result: $76
4 0
3 years ago
Which point is not on the graph of the equation y = x2 + 3x - 5. A.(2,5)
wel

Answer:C

Step-by-step explanation:

7 0
3 years ago
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