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Xelga [282]
3 years ago
7

What is the sum of (5x−9)+(x−1)

Mathematics
1 answer:
Tpy6a [65]3 years ago
7 0

Step-by-step explanation:

(5x - 9) + (x + 1)

5x - 9 + x + 1 = 0 \\

5x +   x - 9 + 1 = 0

6x - 8 = 0

6 x  = 8

x =  \frac{8}{6}

x =  \frac{4}{3}

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A die is rolled 20 times. given that three of the rolls came up 1, five came up 2, four came up 3, two came up 4, three came up
Serjik [45]

Solution:

Number of times a die is rolled = 20

1 - 3=A

2 - 5=B

3 - 4=C

4 - 2=D

5 - 3=E

6 -  3=F

Total number of arrangements of outcomes , when a dice is rolled 20 times given that 1 appear 3 times, 2 appears 5 times, 3 appear 4 times, 4 appear 2 times , 5 appear three times, and 6 appear 3 times

            = Arrangement of 6 numbers (A,B,C,D,E,F) in 6! ways and then arranging outcomes

= 6! × [ 3! × 5! × 4!×2!×3!×3!]

= 720 × 6×120×24×72→→[Keep in Mind →n!= n (n-1)(n-2)(n-3)........1]

= 895795200  Ways

8 0
3 years ago
10. Which equation could be used to solve the problem? Joan picked 4 bushels of apples in one hour. At that rate, how many bushe
Ratling [72]
The answer would be B. b = 8 * 4. If Joan picked 4 bushels of apples in an hour and the question wants to know how many bushels could be picked in 8 hours, its basically asking how many bushels are in 8 groups of 4.
4 0
3 years ago
What is the product of 1/2 x -1/4 and 5x^2 - 2x + 6? Write in standard form.
geniusboy [140]

Answer:     the product of the first one is (x-2)/(2)

Step-by-step explanation:

7 0
3 years ago
PLZ HURRY!!!!!!!!!!!!!<br> Simplify. <br> −4x^2(5x^4−3x^2+x−2)
Simora [160]

\bold{Answer}

\boxed{\bold{-20x^6+12x^4-4x^3+8x^2}}

\bold{Explanation}

  • \bold{Simplify: \ -4x^2\left(5x^4-3x^2+x-2\right)}

\bold{------------------}

  • \bold{Distribute \ Parenthesis}

\bold{\left(-4x^2\right)\cdot \:5x^4+\left(-4x^2\right)\left(-3x^2\right)+\left(-4x^2\right)x+\left(-4x^2\right)\left(-2\right)}

  • \bold{Apply \ Addition \ / \ Subtraction \ Rules: \ +\left(-a\right)=-a,\:\:\left(-a\right)\left(-b\right)=ab}

\bold{-4\cdot \:5x^4x^2+4\cdot \:3x^2x^2-4x^2x+4\cdot \:2x^2}

  • \bold{Simplify \ -4\cdot \:5x^4x^2+4\cdot \:3x^2x^2-4x^2x+4\cdot \:2x^2: \ -20x^6+12x^4-4x^3+8x^2}

\bold{-20x^6+12x^4-4x^3+8x^2}

\boxed{\bold{Eclipsed}}

5 0
3 years ago
A driveway is 40 yards long. about how many meters long is it? HINT: ( a yard is 0.914 meter long)
Amiraneli [1.4K]

Answer: 36.576 meters.

Step-by-step explanation:

In 40 yd there are 36.576 m.

Which is the same to say that 40 yards is 36.576 meters.

* <em>Hopefully this helps:) Mark me the brainliest:)!!!</em>

<em></em>

3 0
3 years ago
Read 2 more answers
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