A model rocket is launched straight up. Its height in feet (y) above the
ground x seconds after launch is modeled by the quadratic function: y=
-16x2 + 216x + 6.
How many seconds did it take the rocket to reach its maximum height?
Answer:
ground x seconds after launch is modeled by the quadratic function: y=
-16x2 + 216x + 6.
How many seconds did it take the rocket to reach its maximum height?
In an assessment of the quality of the electrical power system, one measure of quality is the degree to which voltage fluctuations cause light flicker in the system. The perception of light flicker x when the system is set at 380kV was measured periodically (over 10-minute intervals). For transformers supplying heavy industry plants, suppose the light flicker distribution was found to follow (approximately) a normal distribution with % and . If the perception of light flicker exceeds %, the transformer is shut down and the system is reset. How likely is it for a transformer supplying a heavy industry plant to be shut down due to light flicker?
Answer:
The answer is " 0.83"
Step-by-step explanation:
In the question some data is missing, that's value can be defined as follows:
Values:
[tex]\ X = 3.3 \\[/tex]
[tex]\mu \ = 2.8 \% \\\sigma = 0.6[/tex]
Formula:
[tex]z= \frac{X - \mu }{\sigma} \\[/tex]
[tex]= \frac{3.3 - 2.8 }{0.6} \\\\= \frac{ 0.5}{0.6} \\\\= \ 0.83[/tex]
Tara rolled the numbers shown. what is the greatest number she can make using each digit at once?
Giving a test to a group of students, the grades and gender are summarized below
A B C Total
Male 9 13 6 28
Female 20 19 2 41
Total 29 32 8 69
If one student is chosen at random, Find the probability that the student got a C: Correct Find the probability that the student was female AND got a "C": Correct Find the probability that the student was male OR got an "B": Correct If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are female:______.
Answer:
Kindly check explanation
Step-by-step explanation:
________A___ B___ C___ Total
Male____ 9___13___ 6____ 28
Female_ 20__ 19___ 2____ 41
Total___ 29__ 32___ 8____ 69
If one student is chosen at random,
Find the probability that the student got a C:
P(getting C) = (number of C's) / total number
P(getting C) = 8 / 69
Find the probability that the student was female AND got a "C":
P(female and C):
(number of female who got C / total number)
= 2 / 69
Find the probability that the student was male OR got an "B":
P(male OR B) :
(Number of males or B) = (28 + 32) - 13 = 47
= 47 / 90
find the probability that the student got a 'C' GIVEN they are female:______.
P(C given they are female) :
This is the proportion of females who got C
Total Number of females = 41
Females who got C = 2
Hence,
P(C given they are female) = 2 / 41
when i was 18 years old, my sister was half my age. Now I am 82 years. How old is my sister now?
Answer:
[tex]41 \: \: \: years \: \: \: old[/tex]
Step-by-step explanation:
[tex]me \: \: \: \: \: \: \: \: \: \: \: sis \\ 18 \: \: \: \: \: \: \: \: \: \: \: \: 9 \\ 82 \: \: \: \: \: \: \: \: \: \: \: x \\ \\ use \: \: cross \: \\ multipaction \\ \\ 18x = 82 \times 9 \\ 18x = 738 \\ \frac{18x}{18} = \frac{738}{18} \\ x = 41[/tex]
Answer:
41 y/oStep-by-step explanation:
its a ratio and proportion:
18 y/o = 82 y/o
9 y/o x
82(9) = 18(x)
x = 738 / 18
x = 41 y/o
what is the value of the expression 4 2/5(-2.5)
Answer:
-0.64
Step-by-step explanation:
Given:
4[2/5(-2.5)]
Find:
Value
Computation:
⇒ 4[2/5(-2.5)]
⇒ 8 / [-12.5]
⇒ -0.64
15 ÷ 13965 long division
Answer:
0.001
Step-by-step explanation:
We have the equation:
15 ÷ 13965 = 0.001
Calculated to 3 decimal places.
Now see the attachment,
in the diagram the value of sin P is
You divide the opposite over the hypotenuse
sin(angle) = opposite/hypotenuse
With respect to reference angle P, the opposite side is QR = 5 since it is the leg furthest from the angle P.
The hypotenuse is always the longest side and always opposite the 90 degree angle (the largest angle of any right triangle).
HELP I WILL GIVE BRAINLIEST AND 20 POINTS TO CORRECT ANSWER-Hunter is rolling the dice to see what the probability of rolling different numbers is. Use the drop-down menus to give the probability of rolling the following numbers.
2
3 or less
5 or more
8
Answer:
2: [tex]\frac{1}{6}[/tex]
3 or less: [tex]\frac{1}{2}[/tex]
5 or more: [tex]\frac{1}{3}[/tex]
8: 0
~theLocoCoco
Answer:
2 = 1/6
3 or less =1/2
5 or more = 1/3
8 = 0
Step-by-step explanation:
All interior angles are congruent True or False
Answer:
true
Step-by-step explanation:
NEED HELP ASAP WILL MARK BRANLIEST!!!!!!
Two less than four times a number is 6
Answer: 2 - 4x = 6
Please mark me as brainliest
What is the quotient ?
-4/5 divided by 2
1) -1 3/5
2) -2/5
3) 1/2
4) 1 3/5
Answer: -2/5
Step-by-step explanation: It's -4/5 multiplied by 1/2 because you you have to find the reciprocal, so you flip 2, so it would become 1/2, then you multiply -4/5 and 1/2, which would get you -4/10, which can be reduced to -2/5. Hope this helps!
Answer: B
Step-by-step explanation:
Which is equivalent to 56c^16/162c^3 squared after it has been simplified completely?
Answer:
B
Step-by-step explanation:
Just took the test plz mark brainliest
Answer:
B
Step-by-step explanation:
*Edgy 2020*
In the diagram, Ray K QJKM is a straight angle. Which statements about the diagram are true? Check all that apply. Angle is an angle bisector. AngleLKQ is bisected. mAngleJKL = 45° mAngleMKQ + mAnglePKQ = mAnglePKM Line segment P K is an angle bisector. AngleJKL Is-congruent-to AngleQKM
Answer:3,4,5 are the right anwsers
Step-by-step explanation:
i just did it
Answer:
there right^
Step-by-step explanation:
Find the linear function,
f
(
x
)
, passing through the points:
(
−
5
,
−
7
)
and
(
2
,
−
7
)
.
Enter your answer using function notation
Answer:
f(x) = -7
Step-by-step explanation:
geez - how about typing things so we can read them?
The line passing through (-5,-7) and (2,-7) is a horizontal line
How many ML are equal to 4.567x10^4
Answer:45670 ML
Step-by-step explanation:
Sorry if wrong.
seven thousandths as a decimal. *
Answer:
IT IS , 0.007
Step-by-step explanation:
Hope you do great !!
Answer:
0.007
Step-by-step explanation:
.0 - tenths
0 - hundredths
7 - thousandths
2. Find the product of 2/7 x 5/6
A. 5/21
B. 7/42
C. 9/16
D. 10/13
3. Find (-4/6) (7/10)
A. -28/45
B. -14/25
C. -7/50
D. 17/50
Multiply the numerators together and the denominators:
2/7 x 5/6 = (2x 5) / (7x6) = 10/42 this can be reduced to 5/21
The answer is 5/21
-4/5 x 7/10 = (-4x7) / (5x 10) = -28/50
This can reduce to -14/25
PLEASE HELP ME
Jamie used a microscope to measure the diameter of a hair. She found that the diameter of the hair was 0.000072 meter. How is this number written in scientific notation?
A. 7.2 × 10−6
B. 7.2 × 105
C. 7.2 × 10−5
D. 7.2 × 106
Adam built a rectangular vegetable garden that has a length of 6.6 feet and a
with of 3 1 feet. What is the area of his garden?
Instead of numbers satisfies Binfords law if the probability of a number starting with digit d is p(d)=log (d+1)-log(d) The probability of a particular digit is more than 8% the graph represents the situation which values are included in the solution set
Answer:
B and E
Step-by-step explanation:
i took the test
The recipe calls for 1/2 cup of flour to make 8 servings, how many cups of flour are needed to make 20 servings?
Solve for X!?
PLEASE HELP MEE!!!!!!!
Answer:
x=15
Step-by-step explanation:
An object is moving at a speed of 7 feet per minute. Express this speed in meters per second.
Answer:
2.1 mpm
Explanation:
1ft = 0.3048 m
[tex]0.3048*7=2.1336[/tex]
The given speed in meters per second is 0.00356 m/sec.
Given that, an object is moving at a speed of 7 feet per minute.
We need to express this speed in meters per second.
How to convert feet per minute to meters per second?Feet per minutes. In SI units [tex]5.08 \times 10^{-3}[/tex] meters per second.
Meters per second is the base unit for measuring velocity or speed in the International System of Units (SI). Speed is a measure of distance travelled over time, velocity is speed in a given direction. 1 meter travelled over a period of 1 second = 1 m/s.
For an approximate result, divide the speed value by 1969.
Now, 7/1969=0.003555
≈0.00356
Therefore, the given speed in meters per second is 0.00356 m/sec.
To learn more about the speed visit:
https://brainly.com/question/7359669.
#SPJ2
Label each point on the number line with the correct value.
Click each dot on the image to select an answer. Choices:
0.730.73
0.73
0, point, 73
0.6‾0.\overline{6}
0.
6
0, point, start overline, 6, end overline
78\dfrac{7}{8}
8
7
Answer:
0.6 = A 0.73 = B 7/8 = C
Step-by-step explanation:
Solve for x
4(3x – 5) - 2x = -30
Answer:
your answer is -1
Step-by-step explanation:
D = distributive property
S = switch
C = combine
I = inverse operations
F = finalize
[tex]4(3x - 5) -2x = -30\\12x -20 -2x = -30\\12x -2x = -30 + 20\\10x = -10\\x = \frac{-10}{10}\\ x = -1[/tex]
I need help I have searched everywhere and nothing
industrial costs A power plant is located near a river, where the river is 800 ft wide. Running a cable from the plant to a location in the city, 2 miles (mi) downstream on the opposite side, costs $ 180 per ft across the river and $ 100 per ft ashore along the riverbank .
a) Suppose the cable runs from the plant to point Q, on the opposite side, which is x ft from point P, directly opposite the plant. Write a function C (x) that indicates the cost of laying the cable in terms of the distance x.
b) Generate a table of values to determine if the cheapest location for point Q is less than 2000 ft or greater than 2000 ft from point P.
Answer:
See attached
Step-by-step explanation:
All answers in one graph, refer to attached
The function we need is
C(x) = 100(2*5280 - x) + 180[tex]\sqrt{800 +x^2}[/tex], where 2*5280= 2 milesTable included as well
The vertex is about x = 19 ft which corresponds the minimum cost
Any other value, including negative reveal greater cost
Note. there is a bit confusion over 2 miles or 2000 ft, but the graph is going to be same in shape and vertex for x, the value for cost will be differentWhich simplified fraction is equal to 0.53?
Answer:
53/100
Step-by-step explanation:
0.53 = 53/100
Since "3" is in the hundredths place, that is going to be the denominator.
The fraction cannot be simplified any further.
Best of Luck!
HELP PLEASE HELP Please
