Solve the equation 4x^2-17x-15=0

Answers

Answer 1

Answer: $4x^2-17x-15=0\n 4x^2-20x+3x-15=0\n 4x(x-5)+3(x-5)=0\n (4x+3)(x-5)=0\n x=-(3)/(4) \vee x=5$

Answer 2

Answer: 4x^2 - 17x - 15 = 0
(4x + 3)(x-5)
4x + 3 = 0
4x = -3
x = -3/4

x - 5 = 0
x = 5

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Write 3 2/3 as improper fraction

Answers

The answer is 11/3. Multiply the denominator (3) by the whole number (3), add the numerator (2), then keep the denominator the same! You should end up with 11/3.

The improper fraction of $3(2)/(3)$ is ⇒ 10/3.

The given mixed fraction is

$3(2)/(3)$

We know that

Every fraction is made up of two parts: the numerator and the denominator. Proper fractions and improper fractions are the two primary forms of fractions in mathematics depending on the numerator and denominator values.

An improper fraction is a type of fraction where the numerator is greater than or equal to the denominator

In order to convert it improper fraction proceed as follow

$3(2)/(3)$

= (3x3 + 1)/3

= (9+1)/3

= 10/3

Thus improper fraction is 10/3

Learn more about the fraction visit:

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1. What is the smallest integer that is a multiple of 3, 4, and 8?A. 12
B. 16
c. 18
D. 24
E. 28

Answers

The smallest integer should be 24.

The answer for this is D) 24

A stadium has 55,000 seats. Seats sell for $28 in Section A, $16 in Section B, and $12 in Section C. The number of seats in Section A equals the total number of seats in Sections B and C. Suppose the stadium takes in $1,158,000 from each sold-out event. How many seats does each section hold?

Answers

A=number of seats in section A
B=number of seats in section B
C=number of seats in section C

We can suggest this system of equations:

A+B+C=55,000
A=B+C ⇒A-B-C=0
28A+16B+12C=1,158,000

We solve this system of equations by Gauss Method.

1      1     1    55,000
1 -1 -1    0
28 16       12    1,158,000

1      1     1    55,000
0 -2    -2    -55,000      (R₂-R₁)
0    12    16     382,000    (28R₁-R₂)

1 1 1 55,000
0    -2 -2    -55,000
0 0     4     52,000 (6R₂+R₃)

Therefore:

4C=52,000
C=52,000/4
C=13,000

-2B-2(13,000)=-55,000
-2B-26,000=-55,000
-2B=-55,000+26,000
-2B=-29,000
B=-29,000 / -2
B=14,500.

A + 14,500+13,000=55,000
A+27,500=55,000
A=55,000-27,500
A=27,500.

Answer: there are 27,500 seats in section A, 14,500 seats in section B and 13,000 seats in section C.

Whic of these is an irrational number A.0 B1.9 C.? D.1/2

Answers

Irrational numbers are real numbers that can't be expressed as ratio integers. It cannot be written as a simple fraction.

How can I remember slope?

Answers

You can remember slope by saying " rise over run"

just remember a hill going down.

Divide 72 kg in a ratio of 1:3:5

Answers

If the 3 numbers are in the ratio of 1:3:5, then all together,
they make (1 + 3 + 5) = 9 parts.

Since 72 has been split up into 9 parts, each part is (72 / 9) = 8 .

So the numbers are

1 part . . . . 1 x 8 = 8
3 parts . . . 3 x 8 = 24
5 parts . . . 5 x 8 = 40

Check:

8 / 8 = 1
24/8 = 3
40/8 = 5

8 + 24 + 40 = 72 yay !

and a shout-out to Silversoul, who has so graciously
given me so many chances to fix my typos.

8:24:40 because 72/9 (3+1+5=9) which equals 8

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