3 years ago

Performance task for

Mathematics

1 answer:

Norma-Jean [14]3 years ago

6 0

Answer: what's the question here?

Step-by-step explanation:

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What is the area of a circle with a radius of 15 feet?

Svet_ta [14]

Answer:

A≈706.86ft²

Step-by-step explanation:

A=πr2=π·152≈706.85835ft²

rounded two decimal places= 706.86

6 0

4 years ago

Suppose all the counting numbers are arranged in columns as shown at the right. Under what letter will the number 1000 appear?

pentagon [3]

Letter D because you need to multiply all the letters of the alfabet (36) and multiply 36 by 1000 and then divide the answer by 100 and you get the letter D

4 0

3 years ago

Consider f (x) = StartRoot x squared minus 1 EndRoot and g (x) = StartRoot x squared + 1 EndRoot. What value(s) of x would make

dalvyx [7]

Answer:

Any value of x

Step-by-step explanation:

Given

$f(x) = \sqrt{x^2 - 1}$

$g(x) = \sqrt{x^2 + 1}$

Required

What value of x is $f(g(x)) = g(f(x))$

Solving for f(g(x))

$f(x) = \sqrt{x^2 - 1}$

$f(g(x)) = \sqrt{(\sqrt{x^2 + 1})^2 - 1}$

Solve the inner square

$f(g(x)) = \sqrt{(x^2 + 1 - 1}$

$f(g(x)) = \sqrt{x^2 } }$

$f(g(x)) = x$

Solving g(f(x))

$g(x) = \sqrt{x^2 + 1}$

$g(f(x)) = \sqrt{(\sqrt{x^2 - 1})^2 + 1}$

$g(f(x)) = \sqrt{x^2 - 1 + 1}$

$g(f(x)) = \sqrt{x^2 }$

$g(f(x)) = x$

Equate f(g(x)) and g(f(x))

$f(g(x)) = g(f(x))$

$x = x$

This implies that $f(g(x)) = g(f(x))$ at any value of x

8 0

4 years ago

FIRST CORRECT ANSWER GETS BRAINLIEST!!! AND TEN POINTS!!!

wariber [46]

Answer:

Yes

Step-by-step explanation:

6 0

4 years ago

Please help, picture attached.

REY [17]

It is a step function. The question is from a practice test right?

3 0

3 years ago

Read 2 more answers