Answer: −
10
x
+
7.5
Step-by-step explanation:
Answer:
Option A, (-7, -3)
Step-by-step explanation:
The answer is: Option A, (-7, -3)
Answer:
2.862*10^5
Step-by-step explanation:
First, move the decimal place until you have a number between 1 and 10. If you keep moving the decimal point to the right in 286200 you will get 2.862.
next, since you moved the decimal place to the left 5 times, the xoonent would be a positive 5.
Therefore, the answer is 2.862*10^5
Let's assume two variables x and y which represent the local and international calls respectively.
x + y = 852 = total number of minutes which were consumed by the company (equation 1)
0.06*x+ 0.15 y =69.84 = total price which was charged for the phone calls (Equation 2)
from equation 1:-
x=852 -y (sub in equation 2)
0.06 (852 - y) + 0.15 y =69.84
51.12 -0.06 y +0.15 y =69.84 (subtracting both sides by 51.12)
0.09 y =18.74
y= 208 minutes = international minutes (sub in 1)
208+x=852 (By subtracting both sides by 208)
x = 852-208 = 644 minutes = local minutes
Kyla makes a triangular school pennant. The area of the
triangle is 180 square inches. The base of the pennant is z inches long. The
height is 6 inches longer than twice the base length. The base and height can
be solve using the formal A =bh/2
Since b = z and h = 6 + 2z
180 = z(6+2z) /2
B =Z =12 in
H = 30 in
