3 years ago

The number x is between -9 and -19

Mathematics

1 answer:

Tresset [83]3 years ago

3 0

The answer to this is -9 < x < -19

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What is the solution(s) to the system of equations y = x² +4 and y = 2x + 4

bija089 [108]

Answer:

$(x,y) = (0,4)~ \text{and}~ (x,y) = (2,8)$

Step by step explanation:

$y = x^2 +4~~~~~~~~~...(i)\\\\y = 2x +4~~~~~~~~~...(ii)\\\\\text{From (i) and (ii):}\\\\~~~~~~x^2 +4 = 2x+4\\\\\implies x^2 = 2x\\\\\implies x^2 -2x = 0\\\\\implies x(x-2) = 0\\\\\implies x =0,~ x = 2$

$\text{Substitute x = 0 in eq (i):}\\\\y = 0^2 +4 = 4\\\\\text{Substitute x = 2 in eq (i):}\\\\y=2^2+4 = 4+4 = 8\\\\\text{Hence,}~ (x,y)= \{(2,8), (0,4)\}$

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2 years ago

What do I have to do

hichkok12 [17]

Answer:

+15

-721

+462

-1200

The positives are because it said 'above sea level', the negatives because it said 'below sea level' and zero because it said 'sea level'.

3 0

3 years ago

Hey, the question is in the pic.

nikklg [1K]

The answer would be A

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3 years ago

Nerissa has 5 pink bows 1 blue bow and 4 purple bows in a box. She will randomly choose 1 bow from the box. What is the probabil

Citrus2011 [14]

Answer: The probability is 2/5.

Step-by-step explanation: If there are 5 pink bows, 1 blue bow, and 4 purple bows, there are a total of 10 bows in the box. The probability of choosing a purple one is 4/10 (since there are 4 purple bows). 4/10 simplifies to 2/5.

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3 years ago

Write the espression 40w - 16, as a product with a whole number greater then one.

musickatia [10]

Answer:

8(5w - 2).

Step-by-step explanation:

40w - 16

The greatest common factor of the two terms is 8 so the product is:

8(5w - 2).

8 0

3 years ago

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