Answer:
formula: b/2+i-1
Step-by-step explanation:
b = the number of dots on the perimeter of the figure
i = number of dots in the figure
the answer is 6
Undo what has been done to the variable. That means to do the opposite done to the variable.
5x-4=-19
+4=+4
5x=-15
5 is being multiplied to the variable so you divide it from both sides.
x=-3
Answer:
156.5cm
Step-by-step explanation:
To find this take note the scale is 1 cm:8 ft and the actual building is 1252 ft tall.
So we will divide 1252 by 8.
1252/8= 156.5
256pi
sqroot 256 = 16
16 * 2 = 32
The diameter of the circle is 32
Answer:

Step by step explanation:

first we will change the terms with negative superscrips to the other side of the fraction

then we will distribute the superscripts


as when multiplying two powers that have the same base, we can add the exponents and, to divide podes with the same base, we can subtract the exponents


then we will change again the terms with negative superscrips to the other side of the fraction

