Answer:
23 chalkboards
Step-by-step explanation:
Given:
Mean length = 5 m
Standard deviation = 0.01
Number of units ordered = 1000
Now,
The z factor = 
or
The z factor = 
or
Z = - 2
Now, the Probability P( length < 4.98 )
Also, From z table the p-value = 0.0228
therefore,
P( length < 4.98 ) = 0.0228
Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.
Answer:
8x+10
Step-by-step explanation:
2(x+5)+6x
Distribute
2x+10 +6x
Combine like terms
8x+10
Answer:
A. 804 cm²
Step-by-step explanation:
Formula :
A = 3.14 × 16²
A = 3.14 × (16 × 16)
A = 3.14 × 256
A = 803.84 cm²
A = <u>8</u><u>0</u><u>4</u><u> </u><u>cm²</u> (rounded)
So, the approximate area of the shown below is 804 cm² (A)
#CMIIW ^^
Answer:
5
Step-by-step explanation:
f(-4) = sqrt(2(4)^2 -7) (Plug in -4)
f(-4)= sqrt(2(16)-7) (Square 4 which is 16)
f(-4)=sqrt(32-7) (Multiply by 2)
f(-4)=sqrt(25) (Subtract 7)
f(-4)=+/- 5 (take the square root of 25 which is postive/negative 5)
Since this is a function there can only be one y to an x the positive 5 is the only answer
Answer: 29
Step-by-step explanation:
