Shawntelle must be talking about the base (B) of the triangle. This is because the base area (B) of the pyramid is area, so the unit must be INCHES SQUARED, not inches. However, the base of the triangle is a one-dimensional line and so can be described by length in inches.

Answer: base of triangle

6 0

3 years ago

the length of a rectangle with area 54 square centimeters is 9 centimeters. what is the perimeter of the rectangle, in centimete

MaRussiya [10]

Answer:

30 cm

Step-by-step explanation:

To find the perimeter of the rectangle, you first need to find the width and length of the rectangle:

54/9 = 6

L = 9

W = 6

The perimeter is 2lw:

The answer is 30 cm

5 0

3 years ago

Read 2 more answers

The sum a 8 and a number h is 12

Artyom0805 [142]

H would equal to 4 (8+4=12)

7 0

3 years ago

Read 2 more answers

The lifetime of a certain type of battery is normally distributed with mean value 11 hours and standard deviation 1 hour. There

victus00 [196]

Answer: The required lifetime value is 11.27.

Step-by-step explanation:

Since we have given that

Mean value = 11 hours

Standard deviation = 1 hour

The total lifetime of all batteries in a package exceeds that value for only 5% of all packages.

So, α = 0.95, z= 1.645

n = 9

So, the lifetime value would be

$x=\mu+z\times \dfrac{\sigma}{\sqrt{n}}\\\\x=11+1.645\times \dfrac{1}{\sqrt{36}}\\\\x=11+1.645\times \dfrac{1}{6}\\\\x=11.27$

Hence, the required lifetime value is 11.27.

5 0

4 years ago