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3 years ago

Help me please..........

Mathematics

1 answer:

DedPeter [7]3 years ago

8 0

Answer:11.5x8=92 AS a decimal

0.92

Step-by-step explanation:

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What is the solution set to the following system?<br> X+y=4<br> X^2+y^2=16

faltersainse [42]

X+y = 4, -----> y=4 - x
x² +(4-x)² =16
x² +16-2*4x+x² =16
2x² - 8x = 0
x(2x-8) = 0
2x-4=0, 2x=8, x=4
x=0 or x=4

If x=0, y=4-x=4-0=4.
If x=4, y= 4-x=4-4=0.

(0,4) or (4,0)

Check
x² +y² =16
For (0,4)
0²+4² =16
16 =16 True

For (4,0)
4² +0²=16
16=16 True

Answer (0, 4) and (4,0).

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3 years ago

Can you conclude that the figures are congruent? Justify your answers.

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Since I can’t see the figure I would have to assume that if they are the same shape and size then, yes they’re congruent.

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4 years ago

2. Consider the following graph of a quadratic function.

Stella [2.4K]

Answer:

see the procedure

Step-by-step explanation:

Looking at the graph we have

The graph represent a vertical parabola open upward

The vertex is a minimum

The vertex is the point (-4,-3)

The domain is the interval -----> (-∞,∞)

The Domain is all real numbers

The range is the interval ----> [-3,∞)

$y\geq -3$

The range is all real numbers greater than or equal to -3

The graph is increasing in the interval (-4,∞)

The graph is decreasing in the interval (-∞,-4)

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Answer:

the radius equals 30

______

_/2827.43

--------- = 30

3.14

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Step-by-step explanation:

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3 years ago

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