The perimeter is the sum of the lengths of the sides: 5 ft + 12 ft + 16 ft = 33 ft.
The area is found using the formula A = (1/2)(b)(h), where b = length of base and h = altitude. Here,
A = (1/2)(5 ft)(8 ft) = 20 ft^2
A=1/2 b x h
A= 1/2 (5 x 8)
A=1/2 (40)
so you divide 40 by 1/2
20
b. 74
c. 81
d. 145
Answer:
-64a^3b^3c^3
Step-by-step explanation:
(-4abc)^3= (-4)^3(a)^3(b)^3(c)^3
=-64a^3b^3c^3
Answer:
-12abc
Step-by-step explanation:
Multiply
-4(3) = -12
Since 3 doesn't have any variable such as a, b, or c, then the variable next to -4 doesn't change
Therefore your answer is -12abc
Hope this helps!
Answer:Jake's total cost is $22.05
Step-by-step explanation:
The initial price of the sweater is $30. The store is having a sell that will reduce the price by 30%. This means that there is a reduction in the original amount of the sweater by 30% which is expressed as
30/100 × 30 = $9
The new price of the sweater would be 30 - 9 = $21
Since a sales tax of 5% will be added to the final purchase price, the value of the tax would be
5/100 × 21 = 0.05×21 = $1.05
Jake's total cost would be
21 + 1.05 = $22.05
The polygon has 12 sides and each angle has a measure of 30°.
The border of a Susan B. Anthony dollar is in the shape of a regular polygon. A regular polygon is a polygon with equal sides and equal angles. To calculate the number of sides and measure of the angles, the formula for finding the measure of the interior angles of a regular polygon is used. The formula is (n-2)180/n where n is the number of sides. For the Susan B. Anthony dollar, the number of sides is 12, so the measure of the interior angles is (12-2)180/12 = 30°. Therefore, the polygon has 12 sides and each angle has a measure of 30°, rounded to the nearest degree.
Learn more about angle here
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