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Lorico [155]
3 years ago
14

find two numbers if the second number equals 4 less than the square of the first number and their sum is 38.

Mathematics
1 answer:
BigorU [14]3 years ago
6 0
\sqrt{x} - 4 = 38

38 + 4 = 42

42^2 because the opposite of square root is exponent.
42^2 = 42 x 42 = 1764 = X

Check your work:
/sqrt{1764} - 4 = 38

/sqrt{1764} = 42

42 - 4 = 38

X = 1764

Hopefully this helps!
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Answer questions a) and b)
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Answer:

x\hookrightarrow -1\hookrightarrow 0\hookrightarrow 1\hookrightarrow 2\hookrightarrow 3\hookrightarrow 4\hookrightarrow 5

y\hookrightarrow 5\hookrightarrow 0\hookrightarrow -3\hookrightarrow -4\hookrightarrow -3\hookrightarrow 0\hookrightarrow 5

The curve (B) matches the graph of y=x²-4x.

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3 years ago
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Answer:

  B.  2010.62 ft³

Step-by-step explanation:

The formula for the volume of a cylinder is ...

  V = πr²h . . . . . where r is the radius and h is the height

Filling in the numbers and doing the arithmetic, we get ...

  V = π(8 ft)²(10 ft) = 640π ft³ ≈ 2010.6193 ft³ ≈ 2010.62 ft³

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7 0
4 years ago
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6 0
3 years ago
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Which set of ordered pairs represents a function
11Alexandr11 [23.1K]

Answer:

C: is a function because each input (x) has exactly one output( y).

Step-by-step explanation:

A function is when one input (x) has exactly one output (y).

A: is not a function because -4 is paired with two different y values.

B: is not a function because -4 is paired with two different y values.

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3 0
2 years ago
Write the point-slope form of the line that passes through (6, 1) and is perpendicular to a line with a slope of -3. Include all
jeka94

ANSWER

y-1= \frac{1}{3} (x- 6)

EXPLANATION

We want to write the point-slope form of the line that passes through (6, 1) and is perpendicular to a line with a slope of -3.

The slope of this line is negative reciprocal of -3.

m =  -  \frac{1}{ - 3}  =  \frac{1}{3}

The point-slope form is given by:

y-y_1=m(x-x_1)

We substitute the point and the slope to get;

y-1= \frac{1}{3} (x- 6)

4 0
3 years ago
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