Answer:
between 2 and 12.
Step-by-step explanation:
Hope this helps :)
describe each of the following sets by using description
a. X = { a, e, i, o, u }
b. Y = { 1, 4, 9, 16, 25, 36, 49}
Answer:
Set X is consists of Vowel letters. Set Y consists of Square numbers
Answer:
(a) {-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4}
(b){-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2}
List the discontinuities for the function f(x) = cot( 5x/3 ).
Answer:
[tex]x=\frac{3\pi n}{5}[/tex]
Step-by-step explanation:
We know that [tex]cot(\frac{5x}{3})=\frac{cos(\frac{5x}{3})}{sin(\frac{5x}{3})}[/tex], so [tex]cot(\frac{5x}{3})[/tex] is undefined where [tex]sin(\frac{5x}{3})=0[/tex]:
[tex]sin(\frac{5x}{3})=0\\\\\frac{5x}{3}=\pi n\\\\5x=3\pi n\\\\x=\frac{3\pi n}{5}[/tex]
So, the discontinuities for the function [tex]f(x)=cot(\frac{5x}{3})[/tex] are where [tex]x=\frac{3\pi n}{5}[/tex] with [tex]n[/tex] being any integer.
What is the value of x that makes the given equation true? -90 = -100 + x
A. -10
B. 10
C. -190
D. 190
-90 = -100+x
-90+100=X
+10 =X
OPTION B:- 10
Option B :- 10
Explanation :
[tex] - 90 = - 100 + x \\ - x = - 100 + 90 \\ - x = - 10 \\ x = 10 \\ [/tex]
Solve each equation by factoring
3x^2-14x=-8
3x² - 14x + 8 = 0
Δ = (-14)² - 4*3*8 = 196 - 96 = 100 = 10²
2 solutions
x' = (14 + 10) / (2*3) = 24 : 6 = 4
x" = (14 - 10) / (2*3) =4/6 = 2/3
3 (x - 4) (x - 2/3) = 0
g A pharmaceutical manufacturer has been researching new formula to provide quicker relief of minor pains. His laboratories have produced several different formula which he wanted to test. Fifteen people who complained of minor pains were recruited for an experiment. Five were given formula 1, five were given formula 2, and the last five were given formula 3. Each was asked to take the medicine and report (X) the length of time until some relief was felt. Using the results of the output, at 0.05 level of significance, what is the critical value for testing differences in the population mean times for pain relief
Answer:
Step-by-step explanation:
From the question we are told that
The sample size is n = 15
The level of significance is [tex]\alpha = 0.05[/tex]
The null hypothesis is [tex]H_o:\mu_1 = \mu_2 = \mu_3[/tex]
The alternative hypothesis is [tex]H_a : \mu_1 \ne \mu_2 \ne \mu_3[/tex]
Generally the degree of freedom is mathematically represented as
[tex]df = 5 + 5 + 5 - 3[/tex]
=> [tex]df = 12[/tex]
Generally the critical value of [tex]\alpha = 0.05[/tex] at a degree of freedom of [tex]df = 12[/tex] is
[tex]t_{0.05 , 12} = \pm 2.1788[/tex]
find the surface area of a rectangular prism measuring 7yd and 3yd along the base and 9yd tall
Answer:
222 yd²
Step-by-step explanation:
Bottom and top area, each = 7 * 3 = 21 yd²
Two lateral surdaces, each = 7 * 9 = 63 yd²
Two lateral surdaces, each = 3 * 9 = 27 yd²
Total area = 2 x (21 + 63 + 27) = 222 yd²
¿Cuántas caras quedan al cortar con un plano cada esquina de un cubo como se muestra en la figura?
Realizando un corte en cada esquina del cubo como se muestra en la imagen quedarían una figura de 13 caras.
Cómo calcular en número de caras de la figura?Para saber el número de caras resultante de cortar todas las puntas del cubo debemos tener en cuenta que el cubo tiene 6 caras y 8 puntas.
De acuerdo a lo anterior, debemos remplazar cada punta por una cara, debido a que cada punta va a quedar como una cara luego del corte, es decir que tendríamos que sumar 6 caras y 8 caras producto del corte de las puntas.
6 + 8 = 13
Entonces, el número de caras de esta figura sería 13.
Nota: Esta pregunta está incompleta debido a que le falta la imagen. Aquí está la imagen:
Aprenda más sobre figuras geométricas en: https://brainly.com/question/26798234
3. Find the area of a square if its side length is:
a. 3 inches
b. 40 inches
c. x units
ASAP!!
Drusilla built a model airplane using the scale in. 1/2= 7 ft The wingspan of the model is 15 inches. What is the wingspan of the
actual airplane?
A)
52.5 ft
B)
100 ft
C)105 ft
D)
210 ft
Answer:
The answer is A because 15 x 7 x 1/2= 52.5 ft.
Answer:
d
Step-by-step explanation:1/2=0.5
7 divided by 0.5= 14
14 times 15 =210
I also did the k12 test
The developmental department for a National Lawn Care Services Provider is interested in improving products and services. The germination periods, in days, for grass seed are normally distributed with a population standard deviation of 7 days and an unknown population mean. If a random sample of 17 types of grass seed is taken and results in a sample mean of 37 days, find the error bound (EBM) of the confidence interval with a 98% confidence level.
Answer:
3.949
Step-by-step explanation:
We can use the formula to find the error bound:
EBM=(zα/2)(σn/√)
We know that σ=7 and n=17. We are also given that the confidence level (CL) is 98%, or 0.98. So, we can calculate alpha (α).
α=1−CL
=1−0.98
=0.02
Since α=0.02, we know that
α2=0.022=0.01
The value of z0.01 is 2.326. Now we can substitute the values into the formula to find the error bound.
EBM=(zα/2)(σ/√n)
=(2.326)(7/√17)
≈(2.326)(1.698)
≈3.949
So, the error bound (EBM) is 3.949.
Karla's friend Toni asks if she can drive with Karla 2 days per week. Toni will pay Karla $12 a week. How much money is this in a month? Will this be enough money to pay Karla's monthly gas expenses ? Explain pls & don’t send a link
Answer:
There are 4 weeks in a month so it would be $48, although I'm not sure why it's asking about the monthly gas expense, try to see if you can find how much itll cost in your test or homework and I'll try to help
Step-by-step explanation:
:)
which is a line of symmetry?
Precision manufacturing: A process manufactures ball bearings with diameters that are normally distributed with mean 24.4 millimeters and standard deviation 0.07 millimeter. Round your answers to at least four decimal places. (a) What proportion of the diameters are less than 24.3 millimeters? (b) What proportion of the diameters are greater than 24.6 millimeters? (c) To meet a certain specification, a ball bearing must have a diameter between 24.2 and 24.5 millimeters. What proportion of the ball bearings meet the specification? Part: 0 / 30 of 3 Parts Complete Part 1 of 3 What proportion of the diameters are less than 24.3 millimeters? The proportion of the diameters that are less than 24.3 millimeters is .
Answer:
Z = x - µ / ∂
= 24.2 – 24.6 / 0.07
=-0.4/ 0.07
= -5.71
Step-by-step explanation:
Solution:
Mean = µ = 24.4mm
Standard deviation = ∂= 0.07 mm
(a) Diameter less than 24.3 mm
P(x < 24.3)
The formula for normalized z value:
Z = x - µ / ∂
= 24.3 - 24.4 / 0.07
= - 0.1 / 0.07
= -1.4286
P(z < -1.428) = 1 – p ( z > -1.428)
= 1 – p( z < 1.42)
=1 – 0.4233
= 0.5767
(b) Diameter greater than 24.6 mm
P( x > 24.6)
The formula for normalized z value:
Z = x - µ / ∂
= 24.3 – 24.6 / 0.07
=-0.3 / 0.07
= - 4.285
P( z > -4.285) = 1 – p(z < -4.285)
= 1 – p ( z > 4.285)
=
(c) Diameter between 24.2 and 24.5 mm.
P(x > 24.5)
Z = x - µ / ∂
= 24.5 – 24.6 / 0.07
=-0.1/ 0.07
= -1.4286
P(z < -1.428) = 1 – p ( z > -1.428)
= 1 – p( z < 1.42)
=1 – 0.4233
= 0.5767
P(x < 24.2)
Z = x - µ / ∂
= 24.2 – 24.6 / 0.07
=-0.4/ 0.07
= -5.71
Please help with angle x
Answer:
x = 155
Step-by-step explanation:
Roxanne wants to save up enough money so that she can buy a video game. The game costs $59. Roxanne has $22 saved from mowing the grass. In order to make more money, she plans to pressure wash her neighbors’ driveways. She plans to charge $5 for each driveway she pressure washes, and any extra money she makes beyond $59 she will save to buy another video game. How many driveways does she need to pressure wash to reach her goal?
Please help.
What is 74+35.6?
Thank you
Answer:
The sum of
74 and 35.6 is 109.6
Step-by-step explanation:
109.6
Now enjoy a free meme thing
In a Grade 6 class of 150 students, 30% are girls. How many girls are there in the grade?
150 and 30% are girls
Well, to find 30% you multiply 150 by 0.3
That gets you 45
Therefore, 45 out of 150 are girls
Answer:
50 girl
Step-by-step explanation:
i hope it help
williamm3246 this for you
This is for you William3246! Whoever or whatever you are. ¯\_(ツ)_/¯
question is in the photo thank you so much!
Answer:
Step-by-step explanation:
the 2nd one!
Answer:
Your Answer should be B because you start at -1 and it decreases by -1
What is the equation of the line that contains the point (-1 , 4) and has a slope of 3?
Step-by-step explanation:
Let's write the equation with formula:- Where, x1 is -1 and y1 is 4 and m is 3Thus, The correct choice is option C.
Step-by-step explanation:
Equation of line formula=> y=mx+c
Let take point (-1,4) as (x, y) and slope m=3
4= 3(-1) +c
4= -3+c
4+3=c
7=c
Therefore by using equation of line formula we get
y= mx+c [m=3 , c=7]
y=3x+7
1. You borrow money for a new car from the bank. After month 1, the loan balance is $14,760. After
month 2, it is $14,520. If this pattern continues. what will the balance be after 21 years?
2. Jose deposited $2000.00 on an investment that will give $171.50 for every half year that his money
stays in the account. How much money will he have in his account by the end of year 18?
3. A tube well is bored 800 meters deep. The 1 st meter costs $250 and the cost per meter increases by
$50 for every subsequent meter. Find the cost of boring the 750 th meter and the total cost incurred for
the entire job.
Answer:
#1 The balance after 21 months is $9960.
#2 $1,360
#3 The total cost of boring the 750 meters is $37,700.
Help worth 50 POINTS and BRAINLIEST
Answer:
B i think
Step-by-step explanation:
let one truck be t
10t = 120
t = 12
Answer:
120÷10
=12
Jay can clean 12 trucks
Your student Elijah believes that the fraction 1/3 is greater than the fraction 1/2 because 3 is greater than 2. How would you respond to Elijah? Can you think of multiple ways of explaining why 1/2 is actually greater than 1/3?
Answer:
let us consider on inequality. Seven is greater than two on number that says one every month. Supply one with a positive intention on both sides. A tree. Then this will change. Toe three multiplied with seven is greater than three months. Playing with stool, which will give us that 21 is greater than six status. There is no change in the direction of inequality. Now I'm multiplying. The first inequality picked a negative intention on both sides and minus tree. So then this inequality will change. Toe minus string multiplied with seven is greater than minus street multiplied. Which two, which will become the don'ts that we'll get, will be minus 21 on dhe minus six according to the first inequality. If the direction it's saying the little Belgian as mine is strange even is greater than minus six, which is not possible, so the direction will get automatically reversed. On this, inequality will become minus 21 which is less than minus six. It doesn't eat for violent of the first inequality, so therefore we have seeing that Ben be multiplied the inequality by a postive intrusion on both sides. Then the direction off inequality stays the same. On the other hand, when they're multiplying both sides with a negative Indonesia, then the direction off the inequality will become reverse. So this is what is known as the multiplication property. Oh, the inequalities.
Step-by-step explanation:
mark me brainliest!!
Factor the following expression please (7th grade):
13xy-26x
Answer:
=13x(y - 2)
Step-by-step explanation:
26 = 13 * 2
Find the slope of the line
Answer:
Slope = -2/1 = -2
Step-by-step explanation:
You can look at the points on the image and see the "directions" to get from one point to the next: you go down 2 and over 1. This is -2/1, which is -2.
You could also pick and two points and do a calculation. It can be any two points on the line and it will come out the same.
For example (-1,3) and (0,1) are two points on the line. To find slope, subtract the y's and put that on top of a fraction, then subtract x's and put that on the bottom.
3 - 1 goes on top.
-1 - 0 goes below.
3-1 / -1 - 0
2/-1
= -2
Slope = -2
pleeeeeeeeeeeeeeeeeeeeeeeeease i need help urgently
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Answer:
[tex]if \: \: \frac{p}{4} = \frac{6}{8} = \frac{3}{4} \\ so \: p \: is \: 3[/tex]
Fifteen is 30% of what number
Answer:
15 is 30% of 50
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
[tex]\frac{5}{x} =\frac{13}{100}[/tex]
5×100=500
500÷13=50
X - 10 - 68 - 17 =(when x = 0)

Answer:
-95
Step-by-step explanation:
0 - 10 - 68 - 17
-10 - 68 - 17
=-95
Answer:
-95
Step-by-step explanation:
In Mrs. Kelly's class, 1/5 of the students failed the math test. Of the remaining students in the class, 1/4 scored an A. What fraction of the whole class passed the test, but scored below an A?