3 years ago

Which number is a perfect cube? a.21 b.49 c.343 d.600

2 answers:

5 0

C. 343 because <span>A perfect cube is the result of multiplying a number </span>three<span> times by itself.

1, 8, 27, 64, 125, 216, 343, and so on

</span>

aev [14]3 years ago

5 0

Answer:

343

Step-by-step explanation:

7*7*7=343

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Piper used 1/5 meter of ribbon to create a border around a triangle if each side of the triangle is the same length how much rib

olasank [31]

Answer:

$\frac{1}{15}$

Step-by-step explanation:

as said in the question that the triangle has three equal sides. i.e. this is an equilateral triangle. So,

let us consider one side of the triangle to be x . and 3x( x+x+x) should be equal to 1/5

$x+x+x = \frac{1}{5}\\3x=\frac{1}{5}\\x = \frac{1}{5} / 3\\x = \frac{1}{5} * \frac{1}{3}\\x = \frac{1}{15}$

6 0

3 years ago

For <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%204x%2B1" id="TexFormula1" title="f(x) = 4x+1" alt="f(x) = 4x+1" align="abs

Kamila [148]

$\bf \begin{cases} f(x)=4x+1\\ g(x)=x^2-5\\[-0.5em] \hrulefill\\ (f\circ g)(4)=f(~~g(4)~~) \end{cases} \\\\[-0.35em] ~\dotfill\\\\ g(4)=(4)^2-5\implies g(4)=16-5\implies \boxed{g(4)=11} \\\\\\ f(~~g(4)~~)\implies f(11)\implies f(11)=4(11)+1\implies \blacktriangleright f(11)=45\blacktriangleleft$