6/8 is equal to 15/ what? NEED HELP ASAP PLZ will choose brainliest
2 answers:
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The surface area of right rectangular prism is 150 square centimeter
<em><u>Solution:</u></em>
The surface area of a right rectangular prism can be found by finding the sum of the area of each of the faces of the prism
To find: surface area of right rectangular prism
Given that,
length = 4 cm
width = 9 cm
height = 3 cm
<em><u>The formula for surface area of rectangular prism is given as:</u></em>
A = 2(lw + hl + hw)
Where, "l" is the length and "h" is the height and "w" is the width
Substituting the given values, we get'
Thus surface area of right rectangular prism is 150 square centimeter
Answer:
a) 0.023
b) 0.286
c) 10 students will be unable to complete the exam inthe allotted time.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 80 minutes
Standard Deviation, σ = 10 minutes
We are given that the distribution of time to complete an exam is a bell shaped distribution that is a normal distribution.
Formula:
a) P(completing the exam in one hour or less)
P(x < 60)
Calculation the value from standard normal z table, we have,
b) P(complete the exam in more than 60 minutes but less than 75 minutes)
c) P(completing the exam in more than 90 minutes)
P(x > 90)
Calculation the value from standard normal z table, we have,
15.87% of children of class will require more than 90 minutes to complete the test.
Number of children =
Approximately, 10 students of class will require more than 90 minutes to complete the test.
Answer:
False
Step-by-step explanation:
Using the rule of exponents
×
⇔
, then
×
=
=