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Varvara68 [4.7K]
3 years ago
13

I need help with this question ASAP as soon as possible I need the help plz help me

Mathematics
1 answer:
Setler79 [48]3 years ago
8 0
The answer for the question is 2:5
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Whoever give me the answer to this i will mark them as the Brainest if x = 5,y = 2 and z = 3 then xz ( 4y- 2z) is A. 3445 B. 210
max2010maxim [7]

x= 5 x z= 3 = 15 (4y - 2z) = 60 - -30 = 30 so its C

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Svetach [21]
A+b > c as in the side lengths
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3 years ago
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Need Help! 10 points!
Dominik [7]
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3 years ago
How to solve to system y=x^2-2 y=2x+1
vovikov84 [41]

Answer:

the solutions are (3, 7) and (-1, -1)

Step-by-step explanation:

Insert the " = " symbol between the two equations, obtaining:

y = x^2 - 2 = y = 2x + 1

Then x^2 - 2 = 2x + 1, or

x^2 - 2x - 3 = 0, and this can be factored into (x - 3)(x + 1) = 0.

Thus, the x values that satisfy this system are {-1, 3}.

Use y = 2x + 1 to find the corresponding y values:

y = 2(-1) + 1 = -1

and

y = 2(3) + 1 = 7

Then the solutions are (3, 7) and (-1, -1)

7 0
3 years ago
Help me with this question please, explain why u choose that answer and show ur steps
Setler [38]
Let’s condense the original expression and see if that’s one of the answers

-1/2(-3/2 x + 6x + 1) - 3x

First we distribute the -1/2

((-1/2)(-3/2 x) + (-1/2)(6x) + (-1/2)(1)) -3x

3/4x - 3x - 1/2 -3x

Combine like terms

(3/4 x - 3x - 3x) -1/2

-21/4 x - 1/2

We could make this a mixed number

-5 1/4 x - 1/2

(Mixed number: 5 times 4 plus one gets the numerator)

So the answer is D
7 0
3 years ago
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