<u>X AND Y INTERCEPTS</u>
1st Answer:
x = 9
Step-by-step explanation:
<u>first you want to substitute the y</u>
<h3>
0 = -2 √(25 - x + 8)</h3>
<u>move the expression to the left</u>
<h3>
2 √(25 - x) = 8</h3>
<u>divide both sides</u>
<h3>√25 - x + 4</h3>
<u>move the constant to the right</u>
<h3>
25 - x = 16</h3>
<u>calculate</u>
<h3>
-x = -9</h3>
<u>change the signs</u>
<h3>
x = 9</h3><h3>
</h3>
2nd Answer:
x = -65/9 OR x = - 7 2/9, x = - 7.2
Step-by-step explanation:
<u>first you want to substitute the y</u>
<h2>
0 = -3 √(x + 9) = 4</h2>
<u>move the expression to the left</u>
<h2>
3√(x+9) = 4</h2>
<u>divide both sides</u>
<h2>
√(x+9) = 4/3</h2>
<u>move the constant to the right</u>
<h2>
x = 16/9 - 9</h2>
<u>calculate</u>
<h2>
x = -65/9</h2>
Answer:
fourteen thousand six hundred and eighty nine
Step-by-step explanation:
1 is in the ten thousand group, four is in the thousands, six is in the hundreds, eight is in the tens, nine is in the ones. i hope this helped :)
Move the decimal over to the right three times so it would be 450, then make it a fraction by adding one as the numerator and 450 as the denominator. 1/450
The answer would be be B
~~~~~~~~~~~~~~~~~~~~~~~
You first factor out 54 and thats 3^2 * 6
(The factor of a # is what you multiply to get the answer)
You then do the same to x^9 and y ^7
After that you should have square root of [3^2 * 6x^8 * xy^6 * y]
When you combine this you will get 3x^4 y^3 sqre root [6xy]
Answer:
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.