Answer:
Tim is 12 years
Step-by-step explanation:
Given that Zac is 18 years old and Tim's age is 2/3 Zac's age, to compute Tim's age, we would multiply Zac's age with the fraction.
Such that;
Tim's age = 2/3 * 18
= 2* 18/3
= 2 * 6
= 12 years
Hence Tim is 12 years old.
directions: solve each equation below and type your answer in the answer column. Type all answers in decimal form
Answer:
11. x = 3.5
12. x = 11.75
13. x = 79.6
14. x = 2.2
15. x = 24.80
16. x = 11.75
17. x = 196.5
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the ratio of the number of girls to the number of boys in a school is 9:10. There are 900 boys in the school.
Work out the total number of students in the school
Answer:
1710 students.
Step-by-step explanation:
=>900/10=90
=>90x9=810 (girls)
=>810+900=1710 students in total
Hope this helps! ;)
Find the length of wire required to fence a circular park of diameter 280 m with 3 rounds..
I'm guessing 3 rounds means 3 times around?
diameter = 280
circumference = dπ = 280π
280π x 3 = 840π
If you want it rounded it's about 2638.94 :)
Using the textbook example of 420 California school districts and the regression of testscores on the student-teacher ratio, you find that the standard error on the slope coefficient is 0.51 when using the heteroskedasticity robust formula, while it is 0.48 when employing the homoskedasticity only formula. When calculating the t-statistic, the recommended procedure is to A. use the homoskedasticity only formula because the t-statistic becomes larger B. first test for homoskedasticity of the errors and then make a decision C. use the heteroskedasticity robust formula D. make a decision depending on how much different the estimate of the slope is under the two procedures
Answer:
The answer is "Option C".
Step-by-step explanation:
Robust standard errors or generic White-Huber mistakes depending on this procedure. This is also recognized as the Variance Sandwich Stimator because of the appearance of the formula. Therefore, which is under homoskedasticity, robust error terms were appropriate, in which the standard deviations of its predictor variables are non-constant and are tracked across different values or linked to pre-time periods of an exponential function.
A student who is trying to write a paper for a course has a choice of two topics, A and B. If topic A is chosen, the student will order two books through interlibrary loan, whereas if topic B is chosen, the student will order four books. The student believes that a good paper necessitates receiving and using at least half the books ordered for either topic chosen. If the probability that a book ordered through interlibrary loan actually arrives in time is .9 and books arrive independently of one another, which topic should the student choose to maximize the probability of writing a good paper? What if the arrival probability is only .5 instead of .9?
Answer:
[tex]\text{For topic A }:0.99\\\text{For Topic B}: 0.6875[/tex]
Step-by-step explanation:
Topic A: Two books are ordered
Topic B: Four books are ordered
Let X= number of books arrived
The probability that a book actually arrives in time is 0.9
i.e., p=0.9
For Topic A:
[tex]P(X\geq 1)=P(X=1)+P(X=2)\\\Rightarrow P(X\geq 1)= \;^2C_1 (0.9)^1(0.1)^(2-1)+\;^2C_2 (0.9)^2(0.1)^(2-2)\\\Rightarrow P(X\geq 1)=0.18+0.81\\\Rightarrow P(X\geq 1)=0.99[/tex]
For Topic B:
[tex]P(X\geq 2)=P(X=2)+P(X=3)+P(X=4)\\\Rightarrow P(X\geq 2)=1-[P(X=0)+P(X=1)]\\\Rightarrow P(X\geq 2)=1-[\;^4C_0(0.5)^0(0.5)^4 +\;^4C_0(0.5)^1(0.5)^3]\\\Rightarrow P(X\geq 2)=1-[0.0625+0.25]\\\Rightarrow P(X\geq 2)=0.6875[/tex]
I will mark genius!!! Please help
change the fraction to a decimal and a percent. go three decimal places
Which list orders the numbers from greatest to least
f(x)=2x+5 find the interval where the function is increasing
Tthere are 5 people already in the pool.jonas and his 2 friends get in.how many people are in the pool
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Answer:
Step-by-step explanation:answer is c
I need help answering 4 and 5
4. What’s the measure of
5. What’s the measure of
Which equation represents a line which is perpendicular to the line y= -5/4x - 4?
A. 4y - 5x = -4
B. 4x - 5y = 15
C. 5x + 4y = -8
D. 4x + 5y = 40
Answer:
b
Step-by-step explanation:
4x-5y=15
-5y=-4x+15
y=4/5x+15
4y - 5x = -4 represents the line which is perpendicular to the line y= -5/4x - 4. Option A is correct.
What are perpendicular lines?Two lines are perpendicular to each other if the product of their slopes is equal to -1.
Given,
y= -5/4x - 4
Slope of this line =m1 = -5/4
Let, slope of required line be m2
Then, (m1)(m2) = -1
(-5/4)m2 = -1
m2 = 4/5
The required line has slope = 4/5
Hence, 4y - 5x = -4 has slope equal to 4/5.
To learn more about perpendicular lines visit:
https://brainly.com/question/18271653
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what is the approximate square root to
[tex] \sqrt{1070} [/tex]
with the solving way
Answer:
32 is the answer
Step-by-step explanation:
1070√ cannot be reduced
so the answer of 1070 = √≈32.71085446759225
Reflect the trapezoid in the x-axis. Then translate the trapezoid 2 units left and 3 units up. The coordinates of the final image are:
Answer:
its already over the X axis 0_0
Step-by-step explanation:
I dont think you can flip that
i dont know this help me
$3.50 nail polish marked up to $8.75. explain it please like example.
Answer:
the pice goes up 5.25 more i dont get what is asked btw
Step-by-step explanation:
Answer:
150%
Step-by-step explanation:
Sorry I don't know how to explain this since I just got this from my test.
What is 80% as a fraction in reduced form? StartFraction 1 Over 8 EndFraction StartFraction 4 Over 5 EndFraction StartFraction 8 Over 10 EndFraction StartFraction 40 Over 50 EndFraction
Answer:
4/5
Step-by-step explanation:
Answer:
its 4 over 5
Step-by-step explanation:
(trust me)
Name the quadrant in which lies.
tan(theta)<0 , csc(theta)<0
The angle (theta) lies in which quadrant?
Answer:
Quadrant III (Quadrant Three)
I need help ? Answer below
Answer:
C
Step-by-step explanation:
Just trust me and mark brainliest if this helped ;)
Answer:
B. the bookstore spends more on supplies than advertising.
Step-by-step explanation:
3/12 is spent on supplies and 2/12 is spent on advertising
somebody help with this thanks
PLS HELP!!!! :))) BDHDHSJWJDJD
Answer:
Your answer is "H"
Step-by-step explanation:
Identify the reason that justifies each statement.
Answer:
Vertical angles
Step-by-step explanation:
The diagram shows two straight line intersecting to form vertical angles. One of such pair of vertical angles formed is <1 and <2.
Vertical angles are congruent to each other. Therefore, the reason why <1 ≅ <2 is because they are vertical angles or vertical angles pair.
2x+9y=8 and 2x-9y=8 as an ordered pair
Answer:
hope it helps thanks I have made it in above
Can some plz help me I need it rn
Answer: Brians milk
166. Запишите все целые числа, расположенные на координатной прямой между числами:
Answer:
Don’t speak that language sorry maybe translate into English?
Given h(x) = 4x2 - 5x + 4 find h(-5).
9514 1404 393
Answer:
h(-5) = 129
Step-by-step explanation:
Put -5 where x is and do the arithmetic.
h(-5) = 4(-5)² -5(-5) +4
h(-5) = 4(25) +25 +4 = 129
Answer:
answer is 129
Step-by-step explanation:
4(-5)^2 -5(-5) +4 =129
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Answer:
the 2nd answer
Step-by-step explanation:
i dont know how to explain it but the 2nd onr
If y varies directly as x
and x= 4 when y = 14,
find y when x = -10.
calcule el cociente de los siguientes ejercicios
(-8)/(+2)
Answer:
-4
Step-by-step explanation:
Solve the equation. Please make sure you double-check your solution (answer).
15 = z -35