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makvit [3.9K]
3 years ago
11

1. Is y = -x - 1 quadratic? Explain.

Mathematics
1 answer:
Tpy6a [65]3 years ago
4 0
No because the formula for a quadratic equation is ax^2+bx+c=0
This is a linear equation however.
Hope this helps
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Help<br><br> Idek what to do
ludmilkaskok [199]

Answer:

Calculate the degrees angles from the lining like the one on mid left is 180 degrees

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mark me brainlyest pls

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A girl scout troop sold cookies. If the girls sold 5 more boxes the second week than they did the first, and if they doubled the
mihalych1998 [28]
We can let x be the number of boxes sold for the first week. We can as well express the number of boxes for the second and third week through x using the statements provided.

Since the girl scout sold 5 more boxes on the second week, we have (x + 5) number of boxes sold for the second week. Now, for the third week, since it's double that of the second week, we have 2(x + 5). Thus, we have the following:

first week: x
second week: x + 5
third week: 2(x + 5)

Given that the total number of boxes sold for the three weeks is 431. We have

x + (x + 5) + 2(x + 5) = 431
x + x + 5 + 2x + 10 = 431
4x + 15 = 431
4x = 431 - 15
4x = 416
x = 104

We have now the value of x. Using this, we can find the values for the second and third week.
x + 5 = `104 + 5 = 109
2(x + 5) = 2(109) = 218

Answer: 
first week: 104
second week: 109
third week: 218



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3 years ago
DETERMINE WHETHER THE EXPRESSIONS BELOW ARE CORRECT OR NOT AND DO THE CORRECTION
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Answer:

First ans is true but second one is not the cotrect

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Step-by-step explanation:

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