Answer:
Wages
Step-by-step explanation:
Answer:
2. Wages
4. Allowance
Step-by-step explanation:
very simple question I wish I saw this earlier so I could help. Can I please get brainliest.
尺蛾翅蛾。(thank you.)
LOTS OF POINTS PLEASEE HELP
Answer:
i) x = 0.25 and 1.25
ii) x = -0.5 and 1.5
Step-by-step explanation:
Given that y = 4x² - 4x - 1. So for question 1, you can let y = 0, then see which x-value did the curve touches 0 at y-axis.
Same for question 2.
Point R is at (4, 1.5) and Point T is at (4, 2.9) on a coordinate grid. The distance between the two points is ____. (Input numbers and decimal point only, such as 8.2.)
Answer:
1.4
Step-by-step explanation:
Both points are on the vertical line x=4, so the distance between them is the difference of their y-coordinates:
2.9 -1.5 = 1.4
The points are 1.4 units apart.
A friend who works in a big city owns two cars, one small and one large. One-quarter of the time he drives the small car to work, and three-quarters of the time he takes the large car. If he takes the small car, he usually has little trouble parking and so is at work on time with probability 0.7. If he takes the large car, he is on time to work with probability 0.5. Given that he was at work on time on a particular morning, what is the probability that he drove the small car? (Give the answer to three decimal places.)
Answer:
The probability that he drove the small car is 0.318.
Step-by-step explanation:
We are given that a friend who works in a big city owns two cars, one small and one large. One-quarter of the time he drives the small car to work, and three-quarters of the time he takes the large car.
If he takes the small car, he usually has little trouble parking and so is at work on time with probability 0.7. If he takes the large car, he is on time to work with probability 0.5.
Let the Probability that he drives the small car = P(S) = [tex]\frac{1}{4}[/tex] = 0.25
Probability that he drives the large car = P(L) = [tex]\frac{3}{4}[/tex] = 0.75
Also, let WT = event that he is at work on time
So, Probability that he is at work on time given that he takes the small car = P(WT / S) = 0.7
Probability that he is at work on time given that he takes the large car = P(WT / L) = 0.5
Now, given that he was at work on time on a particular morning, the probability that he drove the small car is given by = P(S / WT)
We will use the concept of Bayes' Theorem for calculating above probability;
So, P(S / WT) = [tex]\frac{P(S) \times P(WT/S)}{P(S) \times P(WT/S)+P(L) \times P(WT/L)}[/tex]
= [tex]\frac{0.25 \times 0.7}{0.25 \times 0.7+0.75 \times 0.5}[/tex]
= [tex]\frac{0.175}{0.55}[/tex]
= 0.318
Hence, the required probability is 0.318.
Write your question here keep it simple and clear
｡☆✼★ ━━━━━━━━━━━━━━ ☾
12 + 12 + 18 + 18 = 60
The perimeter is 60 cm
Have A Nice Day ❤
Stay Brainly! ヅ
- Ally ✧
｡☆✼★ ━━━━━━━━━━━━━━ ☾
According to a recent study, the average woman's leg hair grows an eighth of an inch per month. A new drug company believes that women who daily take its drug will change their leg hair growth. Before putting its product on the market, the company plans on running a test of the effectiveness of the drug.
a. Which null and alternative hypotheses should the company use for this study?
Answer:
H0: μ = 0.125, Ha: μ ≠ 0.125
Step-by-step explanation:
I got the answer correct on the quiz.
The null and alternative hypotheses should the company use for this study H₀: μ = 0.125 Hₐ: μ > 0.125.
What is Alternate Hypothesis?An alternate Hypothesis is a statistical experiment that is contradictory to the null hypothesis.
The claim made by the company should be
Using the company's product will slow down leg growth. According to the study, the average woman's leg hair grows an eighth of an inch per month. So, the company will claim that using its product the average growth will be less than an eighth of an inch per month. Since, the claim contains the word "less than", it will be the alternate hypothesis.
The Null hypothesis, therefore, would be: The average growth is eight of an inch per month.
Let u represent the growth of hair per month.
The Null and Alternate Hypothesis in symbolic forms would be
Null Hypothesis:
[tex]H_{0} : \mu = 0.125\\[/tex],
Alternate Hypothesis:
[tex]H_{a} : \mu > 0.125[/tex]
Learn more about Alternate Hypothesis;
https://brainly.com/question/15305317
7 squared plus 7 cubed
Answer:
392
Step-by-step explanation:
49+343
Answer: 392
Step-by-step explanation: The term “squared“ means times two. And the term “cubed” times three. So multiply 7*7 then add that to 7*7*7
If you found this answer helpful, give it a five-star rating and a thanks!
(Maybe even a brainliest if you feel like it ;D)
log(0.5) 256 = x
find value of x
Answer:
[tex]=-8[/tex]
Step-by-step explanation:
[tex]\log _{0.5}\left(256\right)=x\\Switch\:sides\\x=\log _{0.5}\left(256\right)\\\mathrm{Rewrite\:}256\mathrm{\:in\:power-base\:form:}\quad 256=2^8\\x=\log _{0.5}\left(2^8\right)\\\mathrm{Apply\:log\:rule}:\quad \log _a\left(x^b\right)=b\cdot \log _a\left(x\right)\\\log _{0.5}\left(2^8\right)=8\log _{0.5}\left(2\right)\\x=8\log _{0.5}\left(2\right)\\0.5=2^{-1}\\x=8\log _{2^{-1}}\left(2\right)\\[/tex]
[tex]\mathrm{Apply\:log\:rule\:}\log _{a^b}\left(x\right)=\frac{1}{b}\log _a\left(x\right),\:\quad \mathrm{\:assuming\:}a\:\ge \:0\\x=8\cdot \frac{1}{-1}\log _2\left(2\right)\\\mathrm{Apply\:log\:rule}:\quad \log _a\left(a\right)=1\\x=8\cdot \frac{1}{-1}\\\mathrm{Simplify}\\8\cdot \frac{1}{-1}\\\frac{1}{-1}=-1\\\frac{1}{-1}\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{-b}=-\frac{a}{b}\\=-\frac{1}{1}\\\mathrm{Apply\:rule}\:\frac{a}{1}=a\\=-1\\=8\left(-1\right)\\[/tex]
[tex]\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\=-8\cdot \:1\\\mathrm{Multiply\:the\:numbers:}\:8\cdot \:1=8\\=-8\\[/tex]
The value of x for the expression is, - 8.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ [tex]log_{0.5} ( 256) = x[/tex]
Now, We can solve the expression by the logarithmic for the value of x as;
⇒ [tex]log_{0.5} ( 256) = x[/tex]
⇒ [tex]x = log_{0.5} ( 256)[/tex]
⇒ [tex]x = log_{0.5} ( 2^8)[/tex]
Apply log rule,
⇒ [tex]x =8 log_{0.5} ( 2)[/tex]
⇒ [tex]x = 8 log_{2^{-1} } ( 2)[/tex]
⇒ [tex]x = 8 *\frac{1}{-1} log_{2 } ( 2)[/tex]
⇒ [tex]x = - 8 log_{2 } ( 2)[/tex]
We know that; [tex]log_{2} 2 = 1\\[/tex]
Hence, We get;
⇒ x = - 8 × 1
⇒ x = - 8
Learn more about the mathematical expression visit:
brainly.com/question/1859113
#SPJ2
Will give brainliest for answer
Answer:
y > -x -3
Step-by-step explanation:
The graph is shaded above the dashed line, indicating y-values in the solution are greater than those on the line, so your inequality will start with ...
y >
The y-intercept of the line is (0, -3), so the "b" value in ...
y > mx +b
will be -3.
The line has a rise of -3 for a run of 3 (between the marked points), so the slope is ...
m = rise/run = -3/3 = -1
Then the inequality you want is ...
y > -x -3
Um investidor aplica R$ 1.000,00 a juros simples de 3% ao mês. Determine o valor recebido após um ano:
Responder:
$ 1360
Explicación paso a paso:
La pregunta está incompleta. Aquí está la pregunta completa.
Un inversor aplica R $ 1,000.00 a votos simples de 3% al año o más. Determinar o valor recibido después de 12 años:
Antes de determinar el valor recibido después de un año, necesitamos encontrar el interés simple sobre el dinero después de 12 años.
Interés simple = Principal * tasa * tiempo / 100
Principal dado = $ 1,000 (cantidad invertida)
Tasa = 3%
Tiempo = 1 año
SI = 1000 * 3 * 12/100
SI = 36000/100
SI = $ 360
Cantidad después de 12 años = Principal + Interés
Cantidad = $ 1000 + $ 360
Cantidad = $ 1360
Expiration dates that establish the shelf lives of pharmaceutical products are determined from stability data in drug formulation studies. In order to measure the rate of decomposition of a particular drug, it is stored under various conditions of temperature, humidity, light intensity, etc., and assayed for intact drug potency at FDA-recommended time intervals of every three months during the first year. In this example, the assay Y (mg) of a certain 500 mg tablet formulation is determined at time X (months) under ambient storage conditions.
X 0 3 6 9 12
Y 500 490 470 430 350
(a) Graph these data points (xi , yi) in a scatterplot, and calculate the sample correlation coefficient r=Sxy/Sx.Sy. Classify the correlation as positive or negative, and as weak, moderate, or strong.
(b) Determine the equation of the least-squares regression line for these data points, and include a 95% confidence interval for the slope β1.
(c) Sketch a graph of this line on the same set of axes as part (a); also calculate and plot the fitted response values y, and the residuals ei= yi - ŷi, on this graph.
(d) Complete an ANOVA table for this linear regression, including the F-ratio and corresponding p-value.
Answer:
(a) The correlation is positive
Step-by-step explanation:
30 - -5n + 16 + 3n =
Answer:
8n + 46
Step-by-step explanation:
Combine like terms. First, simplify the signs. two negatives directly next to each other equals one positive:
- (-5n) = + 5n
30 + 5n + 16 + 3n = (30 + 16) + (5n + 3n)
(30 + 16) = 46
(5n + 3n) = 8n
8n + 46 is your answer.
David saves $25.78 to buy a video game. After he buys the video game, he has $3.04 leftover. How much does David spend on the video game?
Answer:
i think it is 22.75 dollars
Step-by-step explanation:
Solve 56 - 10x20 + 8x.
O A. xs-2
O B. X2-2
O c. x52
O D.x22
The value of the given equation is 2 and -10.
What is an equation?An equation is a mathematical statement that shows that two mathematical expressions are equal.
For example, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.
Given is an equation, x²+8x-20 = 0, we need to solve for x,
x²+8x-20 = 0
Solving for x, by using factorization,
x²+8x-20 = 0
Splitting the middle term,
x²+10x-2x-20 = 0
x(x+10)-2(x+10) = 0
(x-2)(x+10) = 0
x = 2 and x = -10
Hence, the value of the given equation is 2 and -10.
Learn more about equation click;
https://brainly.com/question/29657983
#SPJ7
The complete question is attached
compare and contrast perfect squares and imperfect squares. explain your reasoning by talking about square roots and the process of finding perfect square roots and imperfect square roots.
Answer: perfect squares are the squares of the whole numbers: 1, 4, 9,25,36,49,64,81,100...... For example, 9 is a squared number because it can be written as 3x3. However, imperfect squares are numbers whose square roots contain fractions or decimals. For example square root of 20 = 4 1/2
The square number, sometimes known as a perfect square, is an integer that is the square of another integer and numbers with fractional or decimal square roots are considered imperfect squares.
We need to compare and contrast perfect squares and imperfect squares.
Perfect squares: When you multiply an integer by itself, you get a perfect square, which is a positive integer. Perfect squares are sums that are the products of integers multiplied by themselves, to put it simply. A perfect square is typically expressed as x², where x is an integer and x²'s value is a perfect square.
Imperfect squares: Numbers with fractional or decimal square roots are considered imperfect squares.
Therefore, the square number, sometimes known as a perfect square, is an integer that is the square of another integer and numbers with fractional or decimal square roots are considered imperfect squares.
To learn more about a perfect square visit:
https://brainly.com/question/11358616.
#SPJ6
when you multiply my digits, the product is 30, but when you add my digits, the sum is a prime number. What number am i?
Answer:
65
Step-by-step explanation:
6 x 5 = 30
6+ 5 = 11
therefore, the answer is 65
In ΔIJK, k = 7.7 cm, i = 3.4 cm and ∠J=30°. Find the length of j, to the nearest 10th of a centimeter.
Answer:
To the nearest tenth = 10.8cm
Step-by-step explanation:
Using the cosine rule
J² = i² + k² + 2ikcosj
J² = 3.4² + 7.7² + 2(3.4)(7.7) cos 30
J² = 11.56 + 59.29 + 52.36cos30
J² = 11.56 + 59.29 + 52.36(0.8660)
J² = 11.56 + 59.29 + 45.35
J² = 116.2
J=√116.2
J= 10.78 cm
To the nearest tenth = 10.8cm
Answer:
its 5.1
Step-by-step explanation:
\text{S.A.S.}\rightarrow \text{Law of Cosines}
S.A.S.→Law of Cosines
a^2=b^2+c^2-2bc\cos A
a
2
=b
2
+c
2
−2bccosA
From reference sheet.
j^2 = 7.7^2+3.4^2-2(7.7)(3.4)\cos 30
j
2
=7.7
2
+3.4
2
−2(7.7)(3.4)cos30
Plug in values.
j^2 = 59.29+11.56-2(7.7)(3.4)(0.866025)
j
2
=59.29+11.56−2(7.7)(3.4)(0.866025)
Square and find cosine.
j^2 = 59.29+11.56-45.34509
j
2
=59.29+11.56−45.34509
Multiply.
j^2 = 25.50491
j
2
=25.50491
Add.
j=\sqrt{25.50491} \approx5.05 \approx5.1
j=
25.50491
≈5.05≈5.1
Square root and round.
Point A is at (6,1) and point C is at (2,-7) find the coordinates of point B on AC such that AB = 1/3BC
Answer:
B = (5, -1)
Step-by-step explanation:
We can use the required relation to find an expression for B in terms of the given points.
AB = (1/3)(BC)
B -A = (1/3)(C -B)
B = (1/3)C -(1/3)B +A . . . . . add A
(4/3)B = (1/3)C +A . . . . . . . add 1/3B
B = (1/4)C +(3/4)A = (C +3A)/4 . . . . . . multiply by 3/4
B = ((2, -7) +3(6, 1))/4 = (20/4, -4/4) . . . . . substitute given values
B = (5, -1)
Answer:
5/-1
tru trust me
Step-by-step explanation:
Is 3 gallons of paint more than 15 quarts of paint??
Answer:
3 gallons is 12 quarts and is less than 15 quarts
Step-by-step explanation:
1 gallon = 4 quarts
2 gallons = 8 quarts
3 gallons = 12 quarts
Answer
no, 3 gallons is less than 15 quarts
Step-by-step explanation:
1 gallon=3 quarts
3 gallons=12 quarts
PLZ HURRY I AM BEING TIMED!!!!! I WILL GIVE BRAINLIEST TO FIRST ANSWER THAT IS APPLICABLE!
When solving the equation, which is the best first step to begin to simplify the equation?
Negative 2 (x + 3) = negative 10
(negative 2) (Negative 2) (x + 3) = negative 10 (negative 2)
Negative one-half (negative 2) (x + 3) = negative 10 (negative one-half)
StartFraction negative 2 over 2 EndFraction (x + 3) = StartFraction negative 10 over 2 EndFraction
StartFraction negative 2 over negative 10 EndFraction (x + 3) = StartFraction negative 10 over negative 10 EndFraction
Answer: /-2
Step-by-step explanation:
no time to explain but it would make sence using pemdas
Answer:
the answer is B
or
Negative one-half (negative 2) (x + 3) = negative 10 (negative one-half)
Step-by-step explanation:
now give me my brainly plz
I know I wasn't first but the other guy was wrong
What’s the correct answer for this?
Answer:
The third one.
Step-by-step explanation:
Work out the circumference of a circle with radius 7.5 cm take pi to be 3.142
Answer:
47.13
Step-by-step explanation:
The requried circumference of the circle is given as 47.13 cm.
What is a circle?The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). the equation of the circle is given by
(x - h)² + (y - k)² = r²
Where h, k is the coordinate of the center of the circle on the coordinate plane and r is the radius of the circle.
Here,
The circumference of a circle with a radius of 7.5 cm takes pi to be 3.142 is given as,
Circumference of circle = 2πr
Circumference of circle = 2 × 3.142 × 7.5 = 47.13 cm
Thus, the requried circumference of the circle is given as 47.13 cm.
Learn more about circle here:
brainly.com/question/11833983
#SPJ2
**10 POINTS PLEASE HELP!!**
A cube is dilated by a factor of 4. By what factor does its volume increase? Complete the explanation of your reasoning.
The volume increases by a factor of ____. When the cube is dilated, each side length is increased by (select), so the volume is increased by (select) the dilation factor.
Answer:
The volume increases by a factor or 64. When the cube is dilated, each side length is increased by 4, so the volume is increased by 64.
Step-by-step explanation:
Let L represents the Length of the cube before it's dilated.
Volume, V1 = Length * Length * Length
Volume, V1 = L * L * L
Volume, V1 = L³
When the cube is dilated by a factor of 4.
The new Length becomes 4L.
The new volume is calculated as thus.
New Volume, V2 = 4L * 4L * 4L
New Volume, V2 = 64L³
Dividing the new volume by the old volume gives the increment factor.
Factor = New Volume ÷ Old Volume
Factor = V2/V1
Factor = 64L³/L³
Factor = 64.
Hence, when the sides of the cube is dilated by 4, the volume increases by a factor of 64.
Filling the gap of the given sentence;
"The volume increases by a factor or 64. When the cube is dilated, each side length is increased by 4, so the volume is increased by 64"
(Easy question, plz answer) Roberto made fruit punch. He used 3 quarts of mango juice and 1 pint of pomegranate juice. He used 1 quart more cranberry juice than mango juice, How many cups of fruit punch did Roberto make?
Answer:
30 cups
Step-by-step explanation:
mango: 16 cups x 3/4 = 12 cups
pomegranate: 1 pint = 2 cups
cranberry: 1 gallon= 16 cups
Cups of fruit punch: 12+2+16= 30
Roberto made 30 cups of Fruit punch( Hopefully this helped )
What are the coordinates of the roots of the equation 3+2x-x^2
Answer:
3+2x-x^3is the answer
There are 4 dogs at each corner. They each see three dogs. How many dogs are there?
Step-by-step explanation:
there are four dogs because each dog at a corner will see the other three dogs at the other corners
A surf instructor has an initial fee of $12 and charges $8
per hour for lessons.
Explain how to determine what the y-intercept is and
where it would be located on the graph.
Answer:
For this case we can define y as the response variable and represent the cost and x the independent variable who represent the hours of lessons. We know that the instructor has an initial fee of 12 and charges 8 per hour. So then we can model the situation with this formula:
[tex] y =mx+b[/tex]
Where m = 8 represent the slope and b =12 the intercept so our model would be:
[tex] y = 8x +12[/tex]
And the y intercept would be at x=0 and y=12 and represent the initial amount of money that we need to pay in order to have the instructor.
Step-by-step explanation:
For this case we can define y as the response variable and represent the cost and x the independent variable who represent the hours of lessons. We know that the instructor has an initial fee of 12 and charges 8 per hour. So then we can model the situation with this formula:
[tex] y =mx+b[/tex]
Where m = 8 represent the slope and b =12 the intercept so our model would be:
[tex] y = 8x +12[/tex]
And the y intercept would be at x=0 and y=12 and represent the initial amount of money that we need to pay in order to have the instructor.
Answer:
y= 8x+12
Explanation:
I have just completed it. Thank me later.
What’s the correct answer for this?
Answer:
Second option is the correct answer
[tex](x+11)^2+(y+6)^2 = 324[/tex]
Step-by-step explanation:
[tex]x^{2} +12y+22x+y^2-167=0\\x^{2}+22x +y^2 +12y-167=0\\(x^{2}+22x +121)-121 +(y^2 +12y+36)-36-167=0\\(x+11)^2+(y+6)^2-324 = 0\\\huge\red{\boxed{(x+11)^2+(y+6)^2 = 324}}\\[/tex]
Answer:
[tex](x+11)^2+(y+6)^2=324[/tex]
Step-by-step explanation:
[tex]x^2+12y+22x+y^2-167=0\\\mathrm{Circle\:Equation}\\\left(x-a\right)^2+\left(y-b\right)^2=r^2\:\:\mathrm{is\:the\:circle\:equation\:with\:a\:radius\:r,\:centered\:at}\:\left(a,\:b\right)\\\mathrm{Rewrite}\:x^2+12y+22x+y^2-167=0\:\mathrm{in\:the\:form\:of\:the\:standard\:circle\:equation}\\x^2+12y+22x+y^2-167=0\\\mathrm{Move\:the\:loose\:number\:to\:the\:right\:side}\\x^2+22x+y^2+12y=167\\Group\:x-variables\:and\:y-variables\:together\\\left(x^2+22x\right)+\left(y^2+12y\right)=167[/tex]
[tex]\mathrm{Convert}\:x\:\mathrm{to\:square\:form}\\\left(x^2+22x+121\right)+\left(y^2+12y\right)=167+12\\Convert\:to\:square\:form\\\left(x+11\right)^2+\left(y^2+12y\right)=167+121\\\mathrm{Convert}\:y\:\mathrm{to\:square\:form}\\\left(x+11\right)^2+\left(y^2+12y+36\right)=167+121+36\\Convert\:to\:square\:form\\\left(x+11\right)^2+\left(y+6\right)^2=167+121+36\\\mathrm{Refine\:}167+121+36\\\left(x+11\right)^2+\left(y+6\right)^2=324\\Rewrite\:in\:standard\:form[/tex]
[tex]\left(x-\left(-11\right)\right)^2+\left(y-\left(-6\right)\right)^2=18^2\\\mathrm{Therefore\:the\:circle\:properties\:are:}\\\left(a,\:b\right)=\left(-11,\:-6\right),\:r=18[/tex]
On a coordinate plane, triangle L M N is shown. Point L is at (negative 3, 4), point M is at (negative 3, negative 1), and point N is at (2, negative 1).
What is true about triangle LMN?
Answer:
A. LM ⊥ MN. D. The triangle is isosceles. E. The triangle is a right triangle.
Step-by-step explanation:
edge 2020 <3
peter surveyed a random sample of adults and a random sample of teenagers about the number of hours that they exercise in a typical week. What comparative inference can Peter make from the data sets?
Answer:
Step-by-step explanation:
Hello!
Peter is interested in comparing the number of hours adults and teenagers exercise per week, for this selected one random group of adults and a random group of teenagers and surveyed them on their weekly exercise times.
To compare the weekly exercise time of both populations, the best is to use a measure central tendency, so you can compare their positions and see if they are significantly similar or not.
The most common parameters to use for comparing two populations are its population means. So the analysis to do is a two independent sample test.
I hope this helps!
Caleb feeds his puppy 5/8 of a cup at each meal. How many 1/8 cups does he feed his puppy at each meal
Answer:
[tex] \frac{1}{2} [/tex]
[tex] \\ [/tex]
Step-by-step explanation:
[tex] \frac{5}{8} - \frac{1}{8} \\ = \frac{4}{8} \\ = \frac{1}{2} [/tex]