Solve using the foil method (first, outside, inside, last).
(m + 5)(m - 3)
Your steps using foil should look like:
- m * m
- m * -3
- 5 * m
- 5 * -3
After multiplying, rewrite your expression.
m² - 3m + 5m - 15
The last step to simplifying this expression is to combine like terms, which are -3m + 5m.
<h3>m² + 2m - 15</h3>
Answer:
She needs to score 78 on her next test
Step-by-step explanation:
Collect like terms;
Multiply both sides by 6;
402 + x = 480
Subtract 402 from both sides;
x = 78
Answer:
second option
Step-by-step explanation:
Given
x² - 6x - 33 = 0 ( add 33 to both sides )
x² - 6x = 33
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 3)x + 9 = 33 + 9
(x - 3)² = 42 → second option
Answer:
ASA would justify it to be congruent.
Answer:
143 miles
Step-by-step explanation:
d = dory
c = carly
first, we find the equation from our question:
11c + c = 156
now solve:
11c + c = 156 (add 11c and c)
12c = 156 (divide both sides by 12)
c = 13
since dory bike 11 times that, just multiply 11 and 13 to get the answer:
11 • 13 = 143
dory biked 143 miles
<em>to</em><em> </em><em>check</em><em>:</em>
<em>c</em><em> </em><em>+</em><em>d</em><em> </em><em>=</em><em> </em><em>1</em><em>5</em><em>6</em>
<em>1</em><em>3</em><em> </em><em>+</em><em> </em><em>1</em><em>4</em><em>3</em><em> </em><em>=</em><em> </em><em>1</em><em>5</em><em>6</em>
<em>1</em><em>5</em><em>6</em><em> </em><em>=</em><em> </em><em>1</em><em>5</em><em>6</em><em> </em><em>✅</em>
