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:
? ≈ 24°
Step-by-step explanation:
Using the sine ratio in the right triangle
sin? = 
= 
, then
? - 
( ) ≈ 24° ( to the nearest degree )
She made her first mistake in step 2
-2x+5 =-11
add 5 to each side
-2x-5+5 = -11+5
-2x = -6 (not -16)
divide by -2
-2x/-2 = -6/-2
x = 3
She added 5 to 11 and got 16 and made it negative instead of subtracting 5 from 11 and making it negative
Answer:
4/7
Step-by-step explanation:
divide both by two for its simplest form
Answer:
(-1.5, 0) or -1.5
Step-by-step explanation:
The answer if -1.5 because the line hits the x-axis one time and hits it at the point of -1.5. The slope of the line is 2 and the y-intercept is 3, when graphed, you should also see when the line hits the x-axis
