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Fed [463]
3 years ago
10

On a coordinate plane, a line segment contains points (negative 5, 5) and (5, 0). Another segment contains points (negative 1, 1

) and (1, 0). The segments shown are dilations of each other about the origin. Which statement could be true? The coordinate (1, 0) is from a dilation using the scale factor of One-fifth. The coordinate (5, 0) is from a dilation using the scale factor of 4. The coordinate (1, 0) is from a dilation using the scale factor of 5. The coordinate (5, 0) is from a dilation using the scale factor of One-fifth.
Mathematics
2 answers:
Anon25 [30]2 years ago
8 0

Answer:

A.The coordinate (1, 0) is from a dilation using the scale factor of One-fifth.

Step-by-step explanation:

skad [1K]3 years ago
5 0

Answer:

B "The coordinate (5, 0) is from a dilation using the scale factor of 4."

Step-by-step explanation:

Hope this helped

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Evaluate the function at the indicated values if possible. If an indicated value is not in the​ domain, say so.
goldfiish [28.3K]

Answer:

f(-7)=0.

f(2)=-9/5.

f(3) doesn't exist because 3 isn't in the domain of the function.

Step-by-step explanation:

f(x)=\frac{x+7}{x^2-9} is the given function.

We are asked to find:

f(-7)

f(2)

f(3).

f(-7) means to replace x in the expression called f with -7:

Evaluate \frac{x+7}{x^2-9} at x=-7

\frac{(-7)+7}{(-7)^2-9}

\frac{0}{49-9}

\frac{0}{40}

0

So f(-7)=0.

f(2) means to replace x in the expression called f with 2:

Evaluate \frac{x+7}{x^2-9} at x=2

\frac{2+7}{2^2-9}

\frac{9}{4-9}

\frac{9}{-5}

\frac{-9}{5}

So f(2)=-9/5

f(3) means to replace x in the expression called f with 3:

Evaluate \frac{x+7}{x^2-9} at x=3

\frac{3+7}{3^2-9}

\frac{10}{9-9}

\frac{10}{0}

Division by 0 is not allowed so 3 is not in the domain of our function.

5 0
3 years ago
expression to approximate log a of x for all positive numbers a, b, and x, where a is not equal to 1 and b is not equal to one
amid [387]

Question:

Approximate log base b of x, log_b(x).

Of course x can't be negative, and b > 1.


Answer:

f(x) = (-1/x + 1) / (-1/b + 1)


Step-by-step explanation:

log(1) is zero for any base.

log is strictly increasing.

log_b(b) = 1

As x descends to zero, log(x) diverges to -infinity


Graph of f(x) = (-1/x + 1)/a is reminiscent of log(x), with f(1) = 0.


Find a such that f(b) = 1

1 = f(b) = (-1/b + 1)/a

a = (-1/b + 1)


Substitute for a:

f(x) = (-1/x + 1) / (-1/b + 1)

f(1) = 0

f(b) = (-1/b + 1) / (-1/b + 1) = 1




7 0
3 years ago
Solve the equation 3/4 X+-2X=-1/4+1/2X+5​
Paraphin [41]

Answer:

x = -1

Step-by-step explanation:

3 0
2 years ago
Scientific notation of 0.13
nalin [4]
1.3 times 10^( -1 )
4 0
3 years ago
Plas help with these
Zielflug [23.3K]

The answer in the 1st question is 15 in wide.

first to see what we need to multiply the 3 by we need to multiply 3.5, 3.5 x 5 = 17.5

so we know we need to multiply 3 by 5 which is 15 in wide

The answer in the 2nd question is 4 ft x 6

Every 0.5 cm is 6 inches = 1 cm is 1 ft

since the drawing is 6 cm wide the flag will be 6 ft wide

since the drawing is 4 cm long it is 4 ft long

7 0
2 years ago
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