Answer:
Aida
Step-by-step explanation:
5 to the power of 4 is equivalent to 5 x 5 x 5 x 5. Hector, Camila, and Juan all thought of the exponents in wrong ways.
Answer:
x = 24
y = 19
Step-by-step explanation:
2x - 8 = x + 16
x - 8 = 16
x = 24
2y = y + 19
y = 19
Answer:
<h2> a = 2, b = -1 </h2>
Step-by-step explanation:
p(x) = ax³ + x² - 2x + b
p(1) = a(1)³ + 1² - 2•1 + b = a + 1 - 2 + b = a + b - 1
a + b - 1 = 0 ⇒ b = 1 - a
p(-1) = a(-1)³ + (-1)² - 2(-1) + b = -a + 1 + 2 + b = - a + b + 3
- a + b + 3 = 0 ∧ b = 1 - a
- a + (1 - a) + 3 = 0
- a + 1 - a + 3 = 0
-2a + 4 = 0
-2a = -4
<u>a = 2</u>
<u>b = 1 - 2 = -1</u>
Which ever expression is 3x + 21 + 10 ..... 21 + 10 = 31 .... So it'll be 3x + 31 .
