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AveGali [126]
3 years ago
14

Divide the following polynomials. Write the answer in descending powers of a.

Mathematics
2 answers:
Aleks [24]3 years ago
7 0
The answer to this question is 5a^2-6a+20+(-175a+102)over(5a^2+6a-9)
vfiekz [6]3 years ago
7 0

Answer:

ddd

Step-by-step explanation:

Divide 5a2 + 6a - 9 into 25a4 + 19a2 - a - 78.


                               5a^2 -6a +20

                             -------------------------------------------------                    

   5a^2+6a-9        25a^4 + 0a^3 +19a^2 - 1a - 78

                             25a^2 + 30a^3 - 45a^2

                            ------------------------------------------------(subtract)

                                         -30a^3 +64a^2 -1a

                                         -30a^3 -36a^2 +54a

                            -----------------------------------------------(subtract)

                                                     100a^2 -55a  -78

                                                     100a^2 +120a - 180

                              ------------------------------------------------------

                                                                   - 175a +102

Quotient : 5a^2 -6a+20

Remainder : -175+102

Answer is : 5a^2 -6a+20 + \frac{-175a+102}{5a^2+6a-9}


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Please help!
UkoKoshka [18]

The values of x in the triangles and the angles in the rhombus are illustrations of tangent ratios

  • The values of x in the triangles are 21.4 units, 58 degrees and 66 degrees
  • The angles in the rhombus are 44 and 46 degrees, respectively

<h3>How to determine the values of x?</h3>

<u>Triangle 1</u>

The value of x is calculated using the following tangent ratio

tan(25) = 10/x

Make x the subject

x = 10/tan(25)

Evaluate

x = 21.4

<u>Triangle 2</u>

The value of x is calculated using the following tangent ratio

tan(x) = 8/5

Evaluate the quotient

tan(x) = 1.6

Take the arc tan of both sides

x = arctan(1.6)

Evaluate

x = 58

<u>Triangle 3</u>

The value of x is calculated using the following tangent ratio

tan(x) = 0.34/0.15

Evaluate the quotient

tan(x) = 2.27

Take the arc tan of both sides

x = arctan(2.27)

Evaluate

x = 66

<h3>How to calculate the angles of the rhombus?</h3>

The lengths of the diagonals are:

L1 = 2 in

L2 = 5 in

Represent the angles with x and y.

The measures of the angles are calculated using the following tangent ratios

tan(0.5x) = 2/5 and y = 90 - x

Evaluate the quotient

tan(0.5x) = 0.4

Take the arc tan of both sides

0.5x = arctan(0.4)

Evaluate

0.5x = 22

Divide by 0.5

x = 44

Recall that:

y = 90 - x

This gives

y = 90 - 44

Evaluate

y = 46

Hence, the angles in the rhombus are 44 and 46 degrees, respectively

Read more about tangent ratio at:

brainly.com/question/13347349

5 0
2 years ago
Answer to 3,4,5,6,7,8,9,10,11,12 !!
sineoko [7]
3. i=129; j=112
4.k=90;l=116;m=64;n=86
5.o=13;p=78;q=91
6.a=120;b=60;c=140
Can't see #7
You did 8 I believe
9.v=39;w=59;x=121
10.y=59;z=93
11.a=42;b=48;c=132
12.a=60;b=50;c=80;d=100
8 0
3 years ago
Is it linear or not? 2x+5xy-3=0.
ArbitrLikvidat [17]

The linear equation in slope intercept form: y = mx + b.

We have:

2x+5xy-3=0\qquad\text{subtract 2x from both sides}\\\\5xy-3=-2x\qquad\text{add 3 to both sides}\\\\5xy=-2x+3\qquad\text{divide both sides by}\ 5x\neq0\\\\y=\dfrac{-2x+3}{5x}

This is not a linear equation.

4 0
3 years ago
Ummm, Is this right
Alexeev081 [22]

Answer:

\huge\boxed{\sf 25\ ml}

Step-by-step explanation:

Total amount of water = 500 ml

Mary drank = 400 ml

<u>Left:</u>

= 500 ml - 400 ml

= 100 ml

This was divided equally among 4 friends.

So,

<u>Each friend got:</u>

= 100 ml/4

= 25 ml

\rule[225]{225}{2}

6 0
2 years ago
Read 2 more answers
Select the correct answer Which value of xfrom the set 14, 5, 6, 7), makes this equation true? 4(8 x)=8 O A 4 O B. 5 C O D. Rese
nirvana33 [79]

Answer:

it is 45 in decimal form hahaha just kinding

Step-by-step explanation:

3 0
3 years ago
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