Scores on a test are normally distributed with a mean of 200 and a standard deviation of 12. Find each probability
Complete question is;
Scores on a test are normally distributed with a mean of 200 and a standard deviation of 12. Find the probability that a randomly selected student scored less than 218.
Answer:
0.93
Step-by-step explanation:
We are given;
Mean; μ = 200
Standard deviation; σ = 12
Random value; x¯ = 218
Z-score formula is;
z = (x¯ - μ)/σ
z = (218 - 200)/12
z = 18/12
z = 1.5
From z-table, attached, probability = 0.93
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Answer:
77. g=15
Step-by-step explanation:
Answer:
77) 17-3=14
78) 7+6=13
79) 18/6=3
80) 9(3)=27
81) 8+5=13
82) 48/12=4
83) 83-24=59
84) 23-17=6
85) 10(5)=50
86) 86.5+7.63=94.13
87) 11(6)=66
88) 12÷3/4=16
If the mass of a 25 meter long wire is 5 kg then find its mass per
meter.
Answer:
0.2 kg per meter
Step-by-step explanation:
5÷25=0.2
What is the horizontal asymptote of the function f (x)= x^2-25/2x^2 ?
Which speeds are equal to 1/2 mile per hour? Mark all that apply.
5/6 mile/5/12 hour
1/4 mile / 1/2 hour
1/10 hour / 1/5 mile
3/8 mile / 3/4 hour
2/3 hour / 1/3 mile
4/5 mile / 4/10 hour
/
answer :
3/8 mile / 3/4 hour
A farmer plants the same amount every day, adding up to 134 acres at the end of the year. If the year is 12 over, how many acres has the farmer planted?
fAnswer:
1608 acres
Step-by-step explanation:
total acres planted in 12 years = acres planted per year x number of years
134 x 12 = 1608
Answer:
5/6
Step-by-step explanation:
1 2/3 x 1/2 = 5/6
USING YOUR MATH
5. A circular swimming pool has a diameter of 22 feet. A cover that just fits over the top of the
pool would have an area that is closest to which of the following?
(1) 69 sq.ft
(3) 732 sq.ft
(2) 380 sq.ft
(4) 1,521 sq.ft
Answer:
[tex]area = \pi {r}^{2} \\ = \frac{22}{7} ( { \frac{22}{2} )}^{2} \\ = 380 \: sq \: feet[/tex]
Can someone help me please?
Answer:
This is the graph of the question
Step-by-step explanation:
Change from Standard Form into
Slope-Intercept Form
6.
2x - 3y = 12
Help please
Answer:
y = 2/3x - 4
Step-by-step explanation:
2x - 3y = 12
-3y = -2x + 12
y = 2/3x - 4
Help pls I’ll give brainleist.
Answer:
Step-by-step explanation:
C and E look good Dani
Help Asap please lol
Answer:
.
Step-by-step explanation:
Nathan started out on a road trip with his friend Ryan. Nathan picked Ryan up at his house and they started out. Nathan kept track of the distance he was from his house, d, after h hours of driving in the chart below.
Hours
2
4
6
10
Distance
114
224
334
554
How fast were the boys traveling? Be sure to give the correct units. "Show your work."
Answer:
57 mph
Step-by-step explanation:
Half of 114=57.
an expression that is equivalent to 60x+28y.
Answer:
Step-by-step explanation:
The trick here is to identify the greatest common factor of 60 and 28. 4 is such a factor. We can therefore rewrite 60x + 28y as
4(15x + 7)
There are other possible answers.
600x + 280y
------------------- is an example.
100
help pls. no links. and thx ill give branilest if u want it
The total surface area of the block is 32.6 square inches.
Given that, Jake has a block shaped like the prism shown in a set of toys.
What the surface area of a prism?To find the surface area of any kind of prism we use the general formula. The total surface area of a prism is the sum of lateral surface area and area of two flat bases.
The total surface area of a prism = (2 × Base Area) + (Base perimeter × L).
Here, area = 2 ×1/2×2×2.3 +(2+2.5+2.5)×4
= 4.6+28
= 32.6 square inches
Therefore, the total surface area of the block is 32.6 square inches.
To learn more about the surface area of a prism visit:
https://brainly.com/question/28016184.
#SPJ2
Drag each label to the correct location on the tree diagram. Each label can be used more than once, but not all labels will be used.
Brandon is making party decorations by selecting one of two kinds of balloons—heart-shaped balloons or oval-shaped balloons. He puts them in one of three baskets—red, pink, or white. The sample space for the event of selecting a balloon and putting it in one of the baskets is represented in the tree diagram. Complete the sample space.
oval
red
white
pink
Answer:
He is 100% right
Step-by-step explanation:
True or False.
The expressions 4(y−3) and 4y−12 are equivalent?
Answer:
true
Step-by-step explanation: its true 4 x 1y =4y then you multiply that 3 with the four bc you do the same for both sides it will look the same
A loaded truck travels 14 km in 25 minutes. If the speed
remains the same, how far can it travel in 5 hours
Answer:
168 km
Step-by-step explanation:
5h . 60 = 300 min.
14 : 25=0,56
0,56 . 300 = 168 km
Subtract one-third from 8 times b
i think the answer is 1/3 from 8x 6 =-46.7 i think
HELP ME NOW PLS WBAHS
Answer:
8
Step-by-step explanation:
you would add 1+3+4
Answer: The answer is 12
Step-by-step explanation: 4 x 3 x 1 just multiply all the number together
A line with a slope of 1/3 passes through the point (-3, -1). What is its, equation in
slope-intercept form?
Answer:
y = 1/3x
Step-by-step explanation:
y = 1/3x + b
-1 = 1/3(-3) + b
-1 = -1 + b
0 = b
y = 1/3x
What is the vertex for y= 4 (x-2)^2 +3
Here is a list of numbers.
2
5 8 13
15
30
From the list, write down a factor of 10
State the assumption you would make to start an indirect proof of each statement.
1. BD bisects ∠ABC.
2. RT = TS
Answer:
Step-by-step explanation:
1. Assume BD does not bisect ∠ABC
2. Assume RT ≠ TS
A triangle has an area of 230.86 square inches. The height of the triangle is 23.8 inches. What is the length of the base of the triangle?
I'll give brainlist!! Pls help
Answer:
Length of the base of the triangle = 19.37 inch (Approx.)
Step-by-step explanation:
Given:
Area of given triangle = 230.56 square inches
Height of the triangle = 23.8 inches
Find:
Length of the base of the triangle
Computation:
Area of triangle = (1/2)(b)(h)
Area of given triangle = (1/2)(Length of the base of the triangle)(Height of the triangle)
230.56 = (1/2)(Length of the base of the triangle)(23.8)
461.12 = (Length of the base of the triangle)(23.8)
(Length of the base of the triangle)(23.8) = 461.12
Length of the base of the triangle = 19.37 inch (Approx.)
choices;
a) 60degree
b) 70degree
c)80degree
d)90degree
Answer:
∠ PTQ = 70°
Step-by-step explanation:
The angles subtended by the radii and tangents to the circle , sum to 180°
∠ PTQ + 110° = 180° ( subtract 110° from both sides )
∠ PTQ = 70°
Find the shaded angle
Answer:
332°
Step-by-step explanation:
Given is an isosceles triangle,
Measures of base angles of an isosceles triangle are equal.
Therefore,
Measure of central angle
= 180° - ( 76° + 76°)
= 180° - 152°
= 28°
Measure of shaded angle
= 360° - 28°
= 332°
Please helpp ASAP
100 points extra and brainleist
Step-by-step explanation:
C and D are the correct objectives
help me find the cube of 1000
Answer:
10 X 10 X 10
Step-by-step explanation:
if thts what you talking aboyt
hi,can someone help me with this
question is above,just tap to the picture
Thanks
Have a nice day
PLEASE HELP
consider the function f(x)=3x+10