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2 years ago

What is the domain of the following function represented by ordered pairs? {(4, 9), (–6, 1), (–2, 5), (3, 1)}

2 answers:

5 0

The domain is the x set of values represented in the coordinates. Ordered from least to greatest.

so:
{4,-6,-2,3}

Least to greatest:
{-6,-2,3,4}

Final answer: C

sweet-ann [11.9K]2 years ago

5 0

Answer:

Step-by-step explanation:

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Which are solutions of x2 + 5x = 2? Check all that apply.

ANEK [815]

we have

$x^{2} +5x=2$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} +5x+2.5^{2}=2+2.5^{2}$

$x^{2} +5x+6.25=2+6.25$

$x^{2} +5x+6.25=8.25$

Rewrite as perfect squares

$(x+2.5)^{2}=8.25$

Square Root both sides

$(x+2.5)=(+/-)\sqrt{8.25}$

$x=(+/-)\sqrt{8.25}-2.5$

$\sqrt{8.25}=\frac{\sqrt{33}}{2}$

substitute

$x=(+/-)\frac{\sqrt{33}}{2}-2.5$

therefore

the answer is

the solutions are

$x1=-2.5+\frac{\sqrt{33}}{2}$ or $x1=\frac{-5+\sqrt{33}}{2}$

$x2=-2.5-\frac{\sqrt{33}}{2}$ or $x2=\frac{-5-\sqrt{33}}{2}$

7 0

2 years ago

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A small glass holds 180 ml. How many glasses can be filled from a 2 litre bottle?

Vedmedyk [2.9K]

If you can assume that the 2l bottle is full, then it holds 2000ml.
2,000 divided by 180 = 11.11.
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2 years ago

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R560 invested at 8% p.a. simple interest for 3 years

alexdok [17]

Answer:

R 694.4

Explanation:

simple interest = $\sf{\dfrac{PRT}{100}$ → $\sf \dfrac{560*8*3}{100}$ → R 134.4