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kozerog [31]
3 years ago
11

4x-8y=-26 9x+4y=13 Stuck on my math homework again

Mathematics
1 answer:
Svetllana [295]3 years ago
6 0

Answer:

x = 0, y = 13/4

Step-by-step explanation:

I used elimination to solve the system of equations, but it might be easier to use substitution.

Anyway, hope this helps.

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You wish to test the claim that p > 33 at a level of significance of a = 0.05 and are given sample 19) statistics n = 5O x =
densk [106]

Answer:

test statistic is 0.176

Step-by-step explanation:

Given Data

p>33

a=0.05

n=50

x=33.3

d(population deviation)=12

Test statistics=?

Solution

Test statistic z=(p-x)\(d/sqrt(50))

z=(33.3-30)\(12\sqrt(50))

z=0.176

5 0
3 years ago
Express y²-16y+k as a perfect square.​
LiRa [457]

Answer:

(y-4)(y+4)

Step-by-step explanation:

When you factor the y^2 you need to factor the rest of your equation. Your K does not exist since it is a perfect square and there is no c. Then you square 16 which is 4 so you have (y-4) (y+4). Hope this helps :)

5 0
3 years ago
How to factor 18a2+6a5-8a3
Zielflug [23.3K]

Answer:

2a^2(3a^3-4a+9)

Step-by-step explanation:

You could change the equation to this: 6a^3a^2-8a^1a^2+18a^2

*This is the exact same as 18a^2+6a^5-8a^3

You can continue to break this down until you get:

2*3a^3a^2-2*4a^1a^2+2*9a^2

*This too = 18a^2+6a^5-8a^3

With this new equation, you can cancel out the common term: 2a^2

You come up with my answer.

<em>Hope this helps!!</em>


7 0
3 years ago
ANSWER FOR BRAINLIEST<br><br> Image Below
laiz [17]

Answer:

there’s no image

Step-by-step explanation:

4 0
3 years ago
Name the quadrilateral with exactly one pair of parallel sides?
Zina [86]

B. parallelogram


hope this helps<3
8 0
3 years ago
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