Answer:
40 feet
Step-by-step explanation:
The area of a triangle is given by A=h×b/2
A=10×8/2
A=80/2
A=40 feet²
How does the reunion affect paolo’s parents and benjamin
Some of the factors that can make a reunion unhappy or bittersweet are:
Death of a mutual.Personal tragedies, etc.What is Reunion?This refers to the situation where two or more people meet each other again after a long time of being apart.
We can note that sometimes, a reunion is happy, other times, it is bittersweet or unhappy as either some good thing or unfortunate event has occurred during the period spent apart from each other.
Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.
Read more about reunions here:
https://brainly.com/question/837647
Need it sooner than later
A recent study of high school students shows the percentage of females and males who took advanced math courses. A simple random sample of high school students was interviewed. The students were asked whether they had taken an advanced math course. Of the 150 females, 53 answered yes, as did 89 of the 275 males.
Part A: Construct and interpret a 98% confidence interval for the difference in population proportions of females and males who took advanced math courses. Be sure to state the parameter, check conditions, perform calculations, and make conclusion(s). (8 points)
Part B: Does your interval from part A give convincing evidence of a difference between the population proportions? Explain. (2 points)
Using the z-distribution, as we are working with a proportion, it is found that:
A. The 98% confidence interval is (-0.082, 0.141), and it means that we are 98% sure that the true difference of the population proportions are in this interval.
B. Since 0 is part of the confidence interval, it does not give convincing evidence of a difference between the population proportions.
What is the mean and the standard error for the distribution of differences?For each sample, they are given by:
[tex]p_F = \frac{53}{150} = 0.3533, s_F = \sqrt{\frac{0.3533(0.6467)}{150}} = 0.039[/tex]
[tex]p_M = \frac{89}{275} = 0.3236, s_M = \sqrt{\frac{0.3236(0.6764)}{275}} = 0.0282[/tex]
Hence, for the distribution of differences:
[tex]p = p_F - p_M = 0.3533 - 0.3236 = 0.0297[/tex]
[tex]s = \sqrt{s_F^2 + s_M^2} = \sqrt{0.039^2 + 0.0282^2} = 0.048[/tex]
What is the confidence interval:It is given by:
[tex]p \pm zs[/tex]
98% confidence interval, hence, using a z-distribution calculator, the critical value is of z = 2.327.
Then:
[tex]p - zs = 0.0297 - 2.327(0.048) = -0.082[/tex]
[tex]p + zs = 0.0297 + 2.327(0.048) = 0.141[/tex]
The 98% confidence interval is (-0.082, 0.141), and it means that we are 98% sure that the true difference of the population proportions are in this interval.
Item b:
Since 0 is part of the confidence interval, it does not give convincing evidence of a difference between the population proportions.
To learn more about the z-distribution, you can check https://brainly.com/question/25890103
Write an equation for the word sentence!!
- A number divided by 0. 5 is 29
Pls help me T-T
Answer:
[tex]\frac{x}{0.5} =29[/tex]
Step-by-step explanation:
A number, so x, is divided by, so a fraction, 0.5. So [tex]\frac{x}{0.5}[/tex]. Is, which means equals (=), 29. So [tex]\frac{x}{0.5} =29[/tex]
P.S. The answer is x = 14.5
Does anyone know the answer
Answer:
A. (8, -6)
Step-by-step explanation:
Firstly, you want to get those two expressions to be in y-intercept form. (y=mx+b)
Then you want to Desmo Graphing Calculator and submit the two equations.
Therefore 15x+8y=72 and x-8y=56 intersect at (8, -6)
The table below shows how many gumballs of each color there are in a gumball machine.
Juan is going to buy one gumball, and the gumball is selected at random. What is the
approximate probability that Juan gets a yellow gumball?
A) 0.05
B) 0.06
C) 0.17
D) 0.20
Please explain how you get the answer so I could learn because yt videos don’t help and I don’t want to be a burden to my parents by asking them to help
By taking the quotient between the number of yellow gumballs and the total number of gumballs, we will see that the probability is:
p = 0.17, so the correct option is C.
How to get the probability?
If we assume that all the gumballs have the same probability of being selected by the machine, then the probability of getting a yellow gumball is given by the quotient between the number of yellow gumballs and the total number of gumballs.
There are 74 yellow gumballs.There are 86 + 74 + 103+ 94 +89 = 446 gumballs in the machine.So the probability of getting a yellow one is:
p = 74/446 = 0.17
The correct option is C.
If you want to learn more about probability, you can read:
https://brainly.com/question/251701
3/4 x 3/4 in standard form
Solve the following system of equations graphically on the set of axes below.
y = 2x – 1
x + 3y = 18
Answer:
(x, y) = (3, 5)
Step-by-step explanation:
To solve these equations graphically, you plot each one, then identify the coordinates of the point of intersection.
The first equation can be graphed using the y-intercept of -1 and the slope of 2.
The second equation has a y-intercept of 18/3 = 6, and a slope of -1/3. The x-intercept of 18 is off the chart, so the slope and intercept are a good way to plot this line, too.
__
The slope is the "rise" divided by the "run". A slope of 2 means the line goes up 2 units for each unit to the right. A slope of -1/3 means the line goes down 1 unit for each 3 units to the right.
The solution is (x, y) = (3, 5).
what is the answer please
Answer: You know what's the answer...... it is 159.32
Hope it helps :)
What is the volume of this cylinder?
Use ≈ 3.14 and round your answer to the nearest hundredth.
Answer:
2712.96 yd
Step-by-step explanation:
v (volume) = π[tex]r^{2}[/tex]h
v = 3.14 x [tex]12^{2}[/tex] x 6
v = 3.14 x 144 x 6
v = 2712.96
24) area= 16 pi inches squared
Find the circumference
It doesn't give any pictures
Answer:
8π in
Step-by-step explanation:
The Area of a Circle is πr². In this case, we're given the area as 16π, so the radius is 4 because the square root of 16 is 4.
The Circumference of a Circle is 2πr. Since the radius is 4:
[tex]2*4 * \pi[/tex] [tex]8\pi[/tex]Therefore, the circumference is 8π inches.
Dennis drove for 12 minutes and went 8% miles in that time. At this rate, how many miles can he drive in 1 hour?
Help please! This is an assignment!
a car passes through the point (1,3)..it's gradient=2x-1/x². Find the equation of the line
Answer:
y = -1/2x - 3
Step-by-step explanation:
Slope-Intercept Form: y = mx + b
Step 1: Determine known variables
Slope = -1/2 (m = -1/2)
y-intercept - (0, -3), so b = -3
Step 2: Write in known variables
y = -1/2x - 3
Three times certain number increased by four is equal to
16. Find the number.
Answer:
4
Step-by-step explanation:
(4 X 3) + 4 = 16
What are the measures of angles 1,2, and 3?
Answer:
[tex]m\angle 1=50\degree[/tex]
[tex]m\angle 2=70\degree[/tex]
[tex]m\angle 3=50\degree[/tex]
Step-by-step explanation:
[tex]m \angle \: 1 = 180 \degree - (60 \degree + 70 \degree) \\ (by \: angle \: sum \: property \: of \: a \: \triangle) \\ \implies \: m \angle \: 1 = 180 \degree - 130 \degree \\ \\ \implies \: \huge \red{ m \angle \: 1 = 50 \degree} \\ \\ \huge \purple{ m \angle \: 2 = 70 \degree } \\ (alternate \: \angle s) \\ \\ m \angle \: 3 =m \angle \: 1 \\ (alternate \: \angle s) \\ \\ \implies \: \huge \orange{ m \angle \: 3 = 50 \degree}[/tex]
Si la suma de los ángulos interiores de un polígono es 2160
, ¿cuántos lados tiene el polígono?
Answer:
14
Step-by-step explanation:
El número de lados del polígono es 14.
how many times does 150 go into 3000
Answer:
20
Step-by-step explanation:
x × 150 = 3000
x = 3000 ÷ 150x = 20many times does 150 go into 3000 is 20
3000/150=20
20 times does 150 go in 3000
needs help answering
Answer:
26
Step-by-step explanation:
the answer is 26
At White's Whimsical Wands, there are 2 types of wand-making machines. Machine A can
produce 60 wands per day and Machine B can produce 35 wands per day. Every day, White's
Whimsical Wands manufactures 850 wands using a total of 20 machines. Select two equations
below that could be used to determine how many of Machine A and how many of Machine B
White's Whimsical Wands has. Let x represent the number of Machine A and let y represent
the number of Machine B
Answer:
See attached image
Step-by-step explanation:
Explained on image
What is the equation of the vertical asymptote for the graph below? y=1/x−2
very cheap answer
vertical asymptoes occur when the denominator turns to zero, in this case we know the denominator is x - 2, so let's zero it out, by x - 2 = 0, thus x = 2, that's the equation of the vertical asymptote, or namely, the vertical line of x = 2 marks the line where the graph glides over but never touches it.
The function below show the amount of money Bella and sweet T had saved after earning money from doing chores
Answer:
Bella saves more per chore than sweet T
Step-by-step explanation:
Find the size angle XYZ
Give your answer to 1 decimal place
Answer:
∠ XYZ ≈ 72.9°
Step-by-step explanation:
using the tangent ratio in the right triangle
tan XYZ = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{XZ}{XY}[/tex] = [tex]\frac{13}{4}[/tex] , then
∠ XYZ = [tex]tan^{-1}[/tex] ( [tex]\frac{13}{4}[/tex] ) ≈ 72.9° ( to 1 dec. place )
what is the average speed of a runner who covers 5 kilometres in 25 minutes
Answer:
1/5 kilometers per minute
Step-by-step explanation:
in 25 minutes 5 kilometers are covered
divide both by 25 to get the amount of kilometers per minute
25 / 25 = 1
5 / 25 = 1/5
this means that the rate in which the runner is going is 1/5 kilometers per minute
Which graph represents the compound inequality?
–3 < n < 1
Answer:
theres no graph
Step-by-step explanation:
Answer:
open circle, -3 & 1
( option C )
y=5x² – 1
Please answer I need asap thank you!!
Answer:
Step-by-step explanation:
Need help on this question ASAP pleasee I’m going to really appreciate it (:
Lightning flashes every 15 seconds one rainy night. How many times would it flash in 3 minutes? *
12 times in 3 minutes
Lightning flashes every 15 seconds and there’s four 15 seconds in one minute. So in a minute lightning strikes 4 times then you multiply the 4 times 3 minutes and you get 12.
can somone help me out i am kinda stressed
Answer: 4 1/2
Step-by-step explanation:
Adding all the fractions you get 4 1/2
Please help ^^
Homework dued in 10min
Answer:
[tex]\sf x^3+6x^2+12x+8[/tex]
step-by-step explanation:
[tex]\rightarrow \sf \left(x+2\right)^3[/tex]
apply cubic formula: [tex]\bold{ \left(a+b\right)^3=a^3+3a^2b+3ab^2+b^3}[/tex]
[tex]\rightarrow \sf x^3+3x^2 * \:2+3x * \:2^2+2^3[/tex]
[tex]\rightarrow \sf x^3+6x^2+12x+8[/tex]
I need help solving this problem I'm stuck on.
Answer:
S = -90t + 550
Step-by-step explanation:
First we must note a few key things the question tells us:
1. The tickets sell at a constant rate, thus implying a linear relationship.
2. Tickets start selling at 10
3. The independent variable (t) is in hours after 10
4. The number of tickets (S) is declining, thus we should expect a negative gradient.
5. The number of tickets is our dependent variable since it is reliant on time.
y = mx+c is our general linear expression which we will call "Eq 0"
Lets substitute our knowns into this to find m and c. We know that "t" is independent and that "S" is dependent on "t" therefore, we know that our x-axis will be representing values for "t" and that our y-axis will represent values for "S"
We must use simultaneous equations to find m and c
Eq 1: 550 = m(0) + c -> 550 = c
Eq 2: 280 = m(3) + c -> 280 = 3m + c
From Eq 1. we already know that our y intercept is at 550.
To find our gradient, we must substitute our known (550 being the y-intercept) into the next equation.
Thus,
280 = 3m + 550
To isolate our variable (m) we subtract both sides by 550
280 - 550 = 3m + 550 - 550
-270 = 3m
To finally find m, we divide both sides by 3
-270/3 = 3m/3
-90 = m
Now we substitue both our knows into Eq 0, note that our gradient (m) is negative as expected.
y = -90x + 550
Or, in terms of S and t
S = -90t + 550