How does substitution help you to solve systems of equations?

1 answer:

5 0

In solving equations, each must have vales of x and y. X is any number and Y is the output of any number. If you substitute x for a number, you can solve the equation for y.

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Find the value of x A. √30 B. 16 C. 2√2 D. 20

ehidna [41]

Answer:

A. √30

=================

Use the intersecting chords theorem, according to which, the products of the lengths of the line segments on each chord are equal,

or

TW × WU = CW × WV

Substitute the lengths and solve for x:

x*2x = 6*10
2x² = 60
x² = 30
x = √30

The matching answer choice is A.

6 0

3 years ago

1/2×8 1/8 will the product be more or less than 8 1/8?

mario62 [17]

The product would end up being less than that because you are basically dividing by 2.

6 0

4 years ago

The measure of an exterior angle of a triangle equals the sum of the two remote interior angle measures.

Ierofanga [76]

That would bem∠1=116°+34°=150°AddSo, m∠1 = 150°.

6 0

4 years ago

Read 2 more answers

Define fn : [0,1] --> R by the

sasho [114]

Answer:

The sequence of functions $\{x^{n}\}_{n\in \mathbb{N}}$ converges to the function

$f(x)=\begin{cases}0&0\leq x$ .

Step-by-step explanation:

The limit $\lim_{n\to \infty }c^{n}$ exists and converges to zero whenever $\lvert c \rvert$ . But, if $c=1$ the sequence $\{c^{n}\}$ is constant and all its terms are equal to $1$ , then converges to $1$ . Using this result, consider the sequence of functions $\{f_{n}\}$ defined on the interval $[0,1]$ by $f_{n}(x)=x^{n}$ . Then, for all $0\leq x$ we have that $\lim_{n\to \infty}x^{n}=0$ . Now, if $x=1$ , then $\lim_{n\to \infty }x^{n}=1$ . Therefore, the limit function of the sequence of functions is