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3 years ago

Please help the following questions

1 answer:

7 0

Answer:

Q 21 :A D Q22 : A C

Step-by-step explanation:

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tiny-mole [99]

$x = - 1 + \sqrt{10}$

Step-by-step explanation:

the plus sign would have a line under it

8 0

2 years ago

12345 [234]

X^3 -9x+1= 0 (minus 1)

X^3-9x=-1 (divide by 9)

x^3-x=-1/9

But it doesn’t work any further so you have written it wrong

5 0

3 years ago

iren [92.7K]

Answer:

Composite

Step-by-step explanation:

Composite means having more than 2 factors

1, 42, 2, 21, 6, 7 are the factors therefore, it is composite

8 0

3 years ago

Black_prince [1.1K]

Answer:

f(-2) = -1

Step-by-step explanation:

f(x) = -x^2 + 3

f(-2) means when x is -2

Shown in the graph below, the point of solution is: (-2,-1), so when x is -2 y is -1

8 0

3 years ago

weqwewe [10]

The answer would be $2.70

7 0

3 years ago