Answer:
I think the time taken will be 1/3 of what the time is now since the time of the car is tripled.
Step-by-step explanation:
Answer:
divide time by 3 since time&speed are directly proprtional
Step-by-step explanation:
so there.
IQ test scores are standardized to produce a normal distribution with a mean of = 100 and a standard deviation of = 15. Find the proportion of the population for the following IQ score. For your answer, convert each proportion into a percentage whose value is computed to 2 decimal places. Sketch a distribution to help you visualize the problem. IQ score greater than 135
Answer:
0.01
Step-by-step explanation:
Using the z score formula
z = (x-μ)/σ,
where x is the raw score = 135
μ is the population mean = 100
σ is the population standard deviation = 15
z = 135 - 100/15
z = 2.33333
P-value from Z-Table:
P(x<135) = 0.99018
P(x>135) = 1 - P(x<135)
P(x > 135) = 1 - 0.99018
= 0.0098153
Approximately to 2 decimal places
= 0.01
Therefore, the proportion of the population for the following IQ score of 135 is 0.01
Simplify the rational expression -9x/x-x^2
See image attatched below SOMEONE HELP ME ASAP
Answer:
-9/x-1
The top one.
Solve for x. Geometry problem.
Answer:
12.33
Step-by-step explanation:
6x - 2 + 9x - 3 = 180° (linear pair)
6x + 9x - 2 - 3 = 180°
15x - 5 = 180°
15x = 180 + 5
15x = 185
x = 185/15
x = 12.33
hope this helps you!
Find (fog)(x).
f(x) = 6x
g(x) = x + 3
Write your answer as a polynomial in simplest form.
(fog)(x) = ????
Answer:
[tex](fog)(x)=6x+18[/tex]
Step-by-step explanation:
We are given:
f(x)=6x
and g(x)=x+3
We need to find (fog)(x)
(fog)(x) =f(g(x)) i.e we will put value of g(x) into f(x) i.e
[tex](fog)(x)=f(g(x))\\f(g(x))=6(x+3)\\f(g(x))=6x+18[/tex]
So, [tex](fog)(x)=6x+18[/tex]
In one year, a dog's weight increased from 64 to 80 pounds. By what percentege did the dog's weight increase?
Answer:
125%
Step-by-step explanation:
first set up a proportion where 80 is over 64 and x is over 100 . 80/64=x/100
then cross multiply and divide to get 125%
Which point is NOT part of the solution set?
A. (-1, -3)
B. (5, 1)
C. (20, -5)
D. (0, 0)
Answer:
c becues its a bigger number
Step-by-step explanation:
Answer: A. (-1, -3)
This point is on the boundary line, but the boundary line is a dashed line. So this point is not part of the solution. The dashed line is like an electric fence you can get closer to, but you cannot touch it. It's due to the fact there isn't any "or equal to" as part of the inequality sign. So that's why (-1,-3) is not in the solution set. If the boundary line was solid, then (-1,-3) would be a solution.
Points like (5,1), (20,-5) and (0,0) are solutions because they are in the pink shaded region, and they aren't on the boundary.
What is the equation of the line in slope - intercept form ?Enter your answer in the boxes PLEASE HELP!
Answer: y= 3/5x+
Steps shown in image:
can you plz help me with this
Answer:
Step-by-step explanation:
im traade =23423423423
Determine weather the following is real or complex
i^6-122-7i^2
Answer:
Real
Step-by-step explanation:
i^6-122-7i^2
(i^2)^3-122-7i^2
(-1)^3-122-7×(-1)
-1-122+7
-123+7
-116
So the final answer is -116
Need help. Find the ratio of the perimeters and the ratio of the areas
Answer: The ratio of the perimeters is 3:4, and the ratio of the areas is I don't know how to find the ratio of the areas please show me this formula next time.
Step-by-step explanation:
Find the equation of the straight line passing through the point ( 0 , -1 ) which is perpendicular to the line y = -3/4x - 3
A narrow rectangular banner is 5 inches wide. It is 6 times as long as it is wide. what is the area ?
Answer: 30
6 times larger than the width = that's 5×6=30.
Answer:
30 is the answer
vykdutdutdyrsyrssyru5i6ri6ty4ssyhrng
0.9, 0.09, 0.1, 0.07
In order from smallest to largest
Answer:
0.07,0.09,0.1,0.9
Step-by-step explanation:
In general terms, Ascending means smallest to largest, 0 to 9, and/or A to Z and Descending means largest to smallest, 9 to 0, and/or Z to A. Ascending order means the smallest or first or earliest in the order will appear at the top of the list: For numbers or amounts, the sort is smallest to largest.
Given 2x+4y=12 what is the x and y int
Jacob ate 21 chips ahoy cookies in 1 hour and Bryant ate 25 chips ahoy cookies in the same time, at this rate, how mant whole cookies could Bryant eat in 80 minutes
Combine Like Terms
7x^4 - 5x^4=
PLEASE HURRY WILL MARK BRAINLEST!!!!!!!
Answer:
2x^4
Step-by-step explanation:
(3x+5)+(2x+3)
Please show steps
Answer:
first you do the mutpiton in the first perentes then you do addition
Step-by-step explanation:
help, please
thank you
i will brainlist
Answer:
The answer is √156
Step-by-step explanation:
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
2) Unit rate is the price, or quantity, or distance of many items
O True
O
False
Answer:
True
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
It is is a ratio comparing quantities of different items with 1 in the denominator. Technically the price, quantity, or distance of one item.
Example
If Nancy buys 20 items for $180 dollars, what is the unit rate of the item's price
$180/20 = $9 per item (9/1)
Pls solve 30 points math
Answer:
(6,0)
Step-by-step explanation:
The quotient of 5 divided A is great than, less than or equal to the quotient of A divided 5?
Answer:
It will depend
Step-by-step explanation:
If a<5 then quotient of 5 divided A is greater than the quotient of A divided 5.
If a=5 then quotient of 5 divided A is equal to the quotient of A divided 5.
If a>5 then quotient of 5 divided A is less than the quotient of A divided 5.
^DEF and ^RSQ are shown in the diagram below
Based on the information provided in the diagram, what is mZQ in degrees?
Answer:
53.3 degrees
Step-by-step explanation:
∆DEF and ∆RSQ are similar. We know this, because the ratio of their corresponding sides are equal. That is:
DE corresponds to RS
EF corresponds to SQ
DF corresponds to RQ.
Also <D corresponds to <R, <E corresponds to <S, and <F corresponds to <Q.
The ratio of their corresponding sides = DE/RS = 6/3 = 2
EG/SQ = 8/4 = 2
DF/RQ = 4/2 = 2.
Since the ratio of their corresponding sides are equal, it means ∆DEF and ∆RSQ are similar.
Therefore, their corresponding angles would be equal.
Thus, m<Q = m<F
Let's find angle F
m<F = 180 - (98 + 28.7)
m<F = 53.3°
Since <F corresponds to <Q, therefore,
m<Q = 53.3°
A. f(x)=2x+1
B.f(x)=x/2-1
C. f(x)=2x-1
D.f(x)=x/2+1
Answer:
D
Step-by-step explanation:
If you use a calculator and try each you will see that d is correct 3/2+1=2.5 3 is your x from the table and keep doing that with all and see if its true which it is
A laboratory scale is known to have a standard deviation of Ï = 0.001 gram in repeated weighings. Scale readings in repeated weighings are Normally distributed, with mean equal to the true weight of the specimen. A particular specimen is weighed 8 times on this scale. The average weight is x ¯ = 4.1602 grams. A 99% confidence interval for the true weight of the specimen is:_______
Answer:
the confidence interval for the true weight of the specimen is;
4.1593 ≤ μ ≤ 4.1611
Step-by-step explanation:
We are given;
Standard deviation; σ = 0.001
Sample size; n = 8
Average weight; x¯ = 4.1602
We are given a 99% confidence interval and the z-value at this interval is 2.576
Formula for confidence interval is;
CI = x¯ ± (zσ/√n)
Plugging in the relevant values, we have;
CI = 4.1602 ± (2.576 × 0.001/√8)
CI = 4.1602 ± 0.000911
CI = (4.1602 - 0.000911), (4.1602 + 0.000911)
CI ≈ (4.1593, 4.1611)
Thus, the confidence interval for the true weight will be expressed as;
4.1593 ≤ μ ≤ 4.1611
Where μ represents the true weight
The equation y = 5.5x represents a proportional relationship. What is the constant of proportionality?
Answer:
Y = 5.5x
The constant is 5.5
since no matter what y and x are there will always be a 5.5 difference
Also mark brainliest please
The required constant of proportionality is 5.5 in the given expression.
Given that,
The equation y = 5.5x represents a proportional relationship. What is the constant of proportionality is to be determined.
proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense are they directly proportional or inversely proportional to each other.
Here,
The given proportion equation is,?
y = 5.5x
Where y is the dependent variable and x is the independent variable,
And 5.5 is contant.
Thus, the required constant of proportionality is 5.5 in the given expression.
Learn more about proportionality here: https://brainly.com/question/22620356
#SPJ6
Answer this and ill will help back and give brainliest
Answer:
Gh 2
Step-by-step explanation:
2
If the radius of the circle is 7 cm, find its area, rounded to 2 decimal places.
Answer:
14 :)
Step-by-step explanation:
HELP PLEASE IM LOOSING MY MIND
Answer:
C is da answer
Step-by-step explanation:
Answer:
never seen such big horror
but I think it D using logic
What is the slope-intercept form of a line that contains the point (-2,-11) with a slope=4?
PLZ HELP I ONLY HAVE 10 minutes left
Answer:
I believe its c.
Step-by-step explanation:
There using the equation mx+b=y. M is the slope(4), b is the y intercept (3).
Answer:
The correct choice is D.
I believe the answer is B can someone confirm
Answer:
Looks right, b is right
Step-by-step explanation:
The rest are false
Answer:
yes you are right
Step-by-step explanation:
B is correct