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N76 [4]
2 years ago
14

Find the value of x.

Mathematics
1 answer:
kaheart [24]2 years ago
3 0

Answer:

69

Step-by-step explanation:

Use the 3x-2 and take it out

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A class used cars and vans to go on a field trip because all of the buses were already in use. They Used 10 vehicles to go on th
GalinKa [24]

Answer:

4 vans, 6 cars

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
If alpha and beta are the zeroes of the polynomial f(x)= xsquare -8x +gamma such that alpha - beta = 2 find the value of gamma.
Komok [63]

Answer:

Γ = 15

Step-by-step explanation:

Given

f(x) = x² - 8x + Γ

with a = 1, b = - 8 and c = Γ , then

sum of zeros α + β = - \frac{b}{a} = - \frac{-8}{1} = 8

product of zeros = αβ = \frac{c}{a} = Γ

Given α - β = 2 , then

(α - β)² = 2²

α² - 2αβ + β² = 4 → (1)

and

(α + β)² = 8²

α² + 2αβ + β² = 64 → (2)

Add (1) and (2) term by term

2α² + 2β² = 68 ( divide through by 2 )

α² +β² = 34

Substitute α² + β² = 34 into (1)

34 - 2αβ = 4 ( subtract 34 from both sides )

- 2αβ = - 30 ( divide both sides by - 2 )

αβ = 15

Now

αβ = Γ = 15

Thus

f(x) = x² - 8x + 15

4 0
3 years ago
NEEED HELPPPP ASAP PLEASEEE!!!! ONLY THE LAST ONE TO COMPLETE IM HAVING TROUBLE PLEASE
sergeinik [125]

The answer would be 1.52727...

To solve this, subtract 283-199 is 84. Then divide 84 by 55 since 55 is mph of the car. Then you would divide the 84/55. After, the calculation should be 1.52727...

So, the answer/ how much time it takes from Tallahassee to Live Oak is 1.5 hours. (1.52727, 1.53)

7 0
3 years ago
Please Help!!!
IgorC [24]
A) 1 - 7p - 2p^2 + 5p^3
5 0
3 years ago
Which coordinate lies in the solution set for
tatyana61 [14]

Answer:

Step-by-step explanation:

to do this, u would just sub ur answer choices into the inequalities and see what is true. Keeping in mind, that ur point has to satisfy both inequalities for it to be a solution.

2x + y < 12...subbing in (3,3)        3x - 2y > 2...subbing in (3,3)

2(3) + 3 < 12                                   3(3) - 2(3) > 2

6 + 3 < 12                                        9 - 6 > 2

9 < 12....true                                       3 > 2....true

(3,3) lies in the solution set <==

7 0
3 years ago
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