Answer:
A. 1/2 x 14 x 57
Step-by-step explanation:
The formula for the area of a triangle is base x height x 1/2
To calculate the base you would need to add the two numbers on the bottom of the triangle: 20 + 37 = 57
The photo shows that the height is 14 so it would be
1/2 x 14 x 57
Answer:
The temperature of the 5th day was 3°C
Step-by-step explanation:
Mean temperature of the first 4 days = 8°C
Note that:
Mean = Sum of temperatures ÷ number of days
∴ 8 = sum of temperature ÷ 4


Therefore the sum of the first 4 days = 32
Let the temperature of the next day (the fifth day) be m
Hence,
sum of the temperatures of first 5 days = 32 + m - - - - (1)
Next, the sum of the first 5 days can be calculated from the given average of the first 5 days as follows:
Mean temperature of the first 5 days = 7

Now, you will notice that equation (1) = equation (2)
∴ 32 + m = 35
m = 35 - 32 = 3
therefore, the temperature of the 5th day was 3°C
Answer:
Step-by-step explanation:
0=
-6
-9=
-6+-9=
-15
Answer:
you would save the must money from the teen world magazine.
cost of twelve copies using the original price would be:
$3.25×12= $39
amount of money saved at given price: $39-$9.98= $29.92
Answer:
C.8x - 16
Step-by-step explanation:
multiple 4 with 2x = 8x,
then multiple 4 with -4 = -16
add 8x and -16 the answer is 8x - 16