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irga5000 [103]
4 years ago
8

Which is not the quadratic inequality?

Mathematics
1 answer:
crimeas [40]4 years ago
8 0

Answer:

A.

Step-by-step explanation:

A quadratic inequality looks like a quadratic equation, but with signs

<, >, ≤, or ≥

instead of sign =

You are given one equation (the first one, because the sign is =) and two inequalities (the last two beacause the signs are < and > respectively).

Thus, correct option is A,

y=7x^2+5x-7

is not a quadratic inequality (it is a quadratic equation)

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8 0
3 years ago
80,531 rounded to nearest thousand
Vlad [161]

Answer:

81,000

Step-by-step explanation:

go to whatever place it is asking you to round nearest to the if it is 5 or more you round up 4 or less it stays the same.

Saying for this -" 5 or more raise the score, 4 or less let it rest"

                                       ^round up^                ^stays the same^

4 0
3 years ago
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A t-shirt increased in price by 1/4. After the increase it was £20. What was the original price of the t-shirt?
Licemer1 [7]

Answer:

£16

the t-shirt increased by 0.25. let's convert that to percentage

therefore it increased by 25%

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125%=£20

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8 0
2 years ago
Simplify: -5 + 3a +<br> 6 - 4a.
MatroZZZ [7]

Answer:

-a+11

Step-by-step explanation:

hard to explain. but should be correct

4 0
3 years ago
The point (1, –5) is reflected across the y-axis. A coordinate plane. What are its new coordinates?
luda_lava [24]
<h3>Answer:  Choice C.   (-1, -5)</h3>

Explanation:

The reflection rule we use is

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when we want to reflect over the y axis. The x coordinate flips from positive to negative, or vice versa, while the y coordinate stays the same.

Therefore, (1, -5) \to (-1, -5)

7 0
3 years ago
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