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Arlecino [84]
3 years ago
15

I need help on this question

Mathematics
1 answer:
dangina [55]3 years ago
6 0
First off, rewrite all of the fractions so that they have a common denominator.  That's 2/12, 2/12, and 4/12.  Adding these together, we get 8/12.  That's the probability of getting an A, B, or C — but not a D.  The chance of getting a D is represented by the remaining 4/12 — or 1/3.  

TIn short, the chance of rolling D is exactly 1/3.
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How to solve <br> 3+5x=20+7x
Karo-lina-s [1.5K]

3 + 5x = 20 + 7x

First subtract 20 to both sides

-17 + 5x = 7x

Next subtract 5x to both sides (we are trying to get x all in one side)

-17 = 2x

Divide 2 to isolate the x

-17/2 = x or -8.5 = x

4 0
3 years ago
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What is the constant of proportionality of the following equation?<br> B = 1.25C
vladimir1956 [14]

Answer:

The answer is 122

Step-by-step explanation: 0.25 is the constant proportionality in this equation .

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3 years ago
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Classify each polynomial by degree and number of terms. 1. Quartic monomial v 5x? - 7x + 9 2. Cubic binomial 2x3 + 3 &lt; 3. Qua
ElenaW [278]

The degree of a polynomial is categorized by its highest power of its leading variable.

<h3>Degree and number of terms of a polynomial</h3>

Given the following polynomial functions, we are to classify them based on their degrees and the number of terms

For the polynomial function 5x^4 - 7x + 9

The degree is 4 being quartic and there are three terms in the expression

For the polynomial  2x3 + 3 < 3, the degree is 3 (cubic) with three terms in the expression.

For a Quintic quadnomial​, the degree of the polynomial is 5.

Learn more on polynomials here: brainly.com/question/4142886

4 0
2 years ago
The switchboard in a Minneapolis law office gets an average of 5.5 incoming phone calls during the noon hour on Mondays. Experie
trasher [3.6K]

Answer:

2.35 calls

Step-by-step explanation:

The presented scenario can be modeled by a Poisson distribution with an average number of calls (μ) of 5.5 during the noon hour on Mondays.

Therefore, the standard deviation for the number of calls received, X, is given by:

\sigma =\sqrt \mu\\\sigma =\sqrt5.5\\\sigma =2.35\ calls

The standard deviation of X is 2.35 calls.

3 0
3 years ago
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I NEED THIS ASAP! IL MARK BRAINLY
lozanna [386]
It’s B because it’s a primary source because it comes from him
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