Answer:
13.6
Step-by-step explanation:
Since it is asking for 1 decimal place, we assume that it is the tenths decimal place. Since the hundredths decimal place is ≥5, we round up to 6.
Answer:
See below.
Step-by-step explanation:
Variables:
L = length
W = width
P = perimeter
Equations:
L = W + 13
P = 2(L + W)
P = 2(W + 13 + W)
2(W + 13 + W) = 226
2(2W + 13) = 226
2W + 13 = 113
2W = 100
W = 50
L = W + 13 = 50 + 13 = 63
The length is 63 cm, and the width is 50 cm.
First lets subract 1.2 from each side to get
2.3x+2.5x=8-4.3x
Then Combine like terms to get
4.8x+8-4.3x
Then add 4.3 to each side
9.1x=8
x equals about 0.88
Answer: 60 or something near that sorry if wrong
Step-by-step explanation:
Answer:
p = 0, p = 12
Step-by-step explanation:
Given a quadratic equation in standard form
ax² + bx + c = 0 then the nature of its roots is given by the discriminant
Δ = b² - 4ac
For equal roots b² - 4ac = 0
Given
x² -(p - 2)x + 2p + 1 = 0 ← in standard form
with a = 1, b = - (p - 2), c = 2p + 1, then
[- (p - 2)]² - (4 × 1 × 2p + 1) = 0
(p - 2)² - 4(2p + 1) = 0
p² - 4p + 4 - 8p - 4 = 0
p² - 12p = 0 ← factor out p from each term
p(p - 12) = 0
Equate each factor to zero and solve for x
p = 0
p - 12 = 0 ⇒ p = 12