2 years ago

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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Pls helppppp!!

Wittaler [7]

1) -5-4i
2) 5+4i
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hope this helps pls mark me branliest!!<3

8 0

3 years ago

1. Which function represents exponential decay?

MatroZZZ [7]

Answer:

y= 7^-t

Step-by-step explanation:

Equation for exponential decay:

An equation represents exponential decay if a term between 0 and 1 is elevated to the independent variable.

In this question:

First option 4 is elevated, so not exponential decay.

Second option:

$7^{-t} = \frac{1}{7^t} = (\frac{1}{7})^{t}$

$0 < \frac{1}{7} < 1$ , thus, the second option represents exponential decay.

7 0

2 years ago

Find the total number of outcomes, rolling a number cube and tossing<br> two coins

Tcecarenko [31]

A number cube has 6 different numbers.

A coin can have 2 outcomes ( heads or tails.)

Total out comes = 6 x 2 x 2 = 24

5 0

2 years ago

Find the value of x.<br><br> Can someone help please?

Leya [2.2K]

A. is the correct answer

5 0

2 years ago

Write an expression

jeka94

When writing the equation keep in mind that 7 + x is said as a term that is squared so it has to be squared while it's still together; (7 + x)².

3 0

3 years ago