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stealth61 [152]
3 years ago
8

Which polynomial is written in descending order? (2 points) Select one: a. 9 − 3x + 4x2 b. −3x + 9 + 4x2 c. 4x2 − 3x + 9 d. 4x2

+ 9 − 3x
Mathematics
2 answers:
just olya [345]3 years ago
6 0

Answer:

Option C. (4x² -3x + 9)

Step-by-step explanation:

Arranging a polynomial in descending order means to arrange the powers of variables of each term in the descending order.

So in the given options only Option C. is in the descending order.

4x² - 3x + 9

This polynomial has the variable x² with maximum degree of 2 at the starting.

Then second variable 3x with degree of 1 and then constant term 9.

Option C. is the correct option.

Sav [38]3 years ago
4 0
C.) 4x^2 - 3x + 9 is written in descending order.
 


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Factor -1/4 out of -1/2-5/4y
In-s [12.5K]
When we factor out something, we divide the factor by the equation. For example if we were to factor 3 out of 6, It will be 3(2). We got this answer by dividing 3 and 6. Using this concept:

\frac{-1}{4}[( \frac{-1}{2} / \frac{-1}{4}) - ( \frac{5}{4} y /  \frac{-1}{4})]

Simplifying:

\frac{-1}{4}(2 + 5y)

Hope this helps!
3 0
3 years ago
The perimeter of a rectangular field is 364 yards. If the width of the field is 85 yards, what is its length?
Solnce55 [7]

Answer:

\huge\boxed{97 yards}

Step-by-step explanation:

Important Information:

Perimeter of rectangle=Lenght+Length+width+width

Method:

The first step to work this out is to  multiply the width of 85 by 2, this gives you 170.This is because a rectangle has two sets of equal sides. This means that there two widths.

The next step is to subtract 170 from the perimeter of 364, this gives you 194. This is because the formula for the perimeter of a rectangle isLenght+Length+width+width. This means that in order to isolate the values of the lenght we must subtract the values of the width.

The final step is to divide the value of 194 by 2, this gives you 97. This is because that is the value for 2*the length. That means in order to work out the value of 1 you would need to divide by 2.

Step By Step:

1) Multiply 85 by 2.

85*2=170

2) subtract 170 from 364.

364-170=194

3) Divide 194 by 2.

194/2=97

4 0
3 years ago
In which of the following situations should the chi-square Test for Goodness-of-Fit be used? Select the correct answer below: a.
dangina [55]

Answer:

Correct answer is (a). An online research company puts out a survey asking people two questions. First, it asks whether they buy groceries online. Second, it asks whether they own a car or not. The data are collected and recorded in a contingency table. The company wants to determine if there is a relationship between buying groceries online and car ownership

Step-by-step explanation:

The chi-square distribution can be used to perform the goodness-of-fit test, Closeness of observed data to expected data of the model.

5 0
3 years ago
Of the 350 songs D’marco downloaded, 84 songs were free. What percent of the songs did D’marco have to pay for?
maxonik [38]

Answer:

76%

Step-by-step explanation:

84/350 = 24%

That means, 24% of the songs were free and 76% were paid.

7 0
3 years ago
2 and 1/3 devided by 2/3
goldfiish [28.3K]

Answer:

3/5 , 7/2 , 3 1/2

Step-by-step explanation:

<h2>Step 1 -</h2>

Two Plus One - Third

2 + \frac{1}{3}

Make Both Fractions-

\frac{2}{1} + \frac{1}{3}

Make Same Denominator ( Bottom # Of Fraction )-

\frac{2}{1} * \frac{3}{3} = \frac{6}{3}

New Equation-

\frac{6}{3} + \frac{1}{3}= \frac{7}{3}

<h2 /><h2>Step 2-</h2>

Seven - Thirds Divided By Two-Thirds.

\frac{7}{3}   /  \frac{2}{3}

Divide In Parts-

7 / 2 = 3.5

<h2><em>Final Answer of '2 and 1/3 divided by 2/3 is 3.5, 7/2, 3 1/2! </em><u><em>Don't Forget To Rate Brainiest!</em></u></h2><h2 /><h2><em>                                        </em><em>-Aslina</em></h2>
3 0
3 years ago
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