What is the solution to the following system of equations? 3x-2y=19y=X - 7
Answers
Answer:
y = 1
Step-by-step explanation:
3(7) - 2y = 19y
21 - 2y = 19y
21 = 21y
y = 1
Related Questions
Kevin cuts four pieces of wood into fourths. How many fourths does he have?
Answers
Answer:
16/4
Step-by-step explanation:
BRAINLIEST?!
Answer:
16 fourths
Step-by-step explanation:
If one piece of wood is cut into fourths then you have 4 fourths. If you multiply that by 4 you have 16 fourths
What is the domain of the functions below:
y=5x / |x-1|+1
(The / symbol is a fraction)
Answers
Answer:
domain is all real numbers
a graph that has a right skew group of answer choices indicates that there are more data points with small values than data points with large values. cannot have outliers. indicates the presence of data entry errors. indicates that there are more data points with large values than data points with small values. always has high outliers.
Answers
The presence of data entry errors is not necessarily indicated by a right skew, as errors can occur in any type of data distribution.
A graph that has a right skew indicates that there are more data points with small values than data points with large values. This means that the tail of the distribution extends to the right, indicating a relatively small number of high values, also known as high outliers.
However, it is not accurate to say that it cannot have outliers or that it always has high outliers.
Outliers can occur in any type of distribution, and their position and number depend on the specific dataset.
Similarly, the presence of data entry errors is not necessarily indicated by a right skew, as errors can occur in any type of data distribution.
To learn more about graph visit: https://brainly.com/question/17267403
#SPJ11
HELP, I NEED IT ASAP!!!!!!!!!!!
Which conversions involve multiplying by a positive power of 10? Select all that apply.
(1.) 6 kiloliters = ___ centiliters
(2.) 800 meters = ___ hectometers
(3.) 0.8 dekameters = ___ decimeters
(4.) 13 hectograms = ___ milligrams
A 2-column table with 7 rows. Column 1 has entries kilo, hecto, deka, unit, deci, centi, milli. Column 2 has entries 1,000, 100, 10, 1, 0.1, 0.01, 0.001.
Answers
Answer:
its A C D
Step-by-step explanation:
did it on edg and got it right
Answer:
it is 1,3 and 4
Step-by-step explanation:
The generic metal A forms an insoluble salt AB(s) and a complex AC5(aq). The equilibrium concentrations in a solution of AC5 were found to be [A] = 0. 100 M, [C] = 0. 0360 M, and [AC5] = 0. 100 M. Determine the formation constant, Kf, of AC5. The solubility of AB(s) in a 1. 000-M solution of C(aq) is found to be 0. 131 M. What is the Ksp of AB?
Answers
frank needs to save $600 to buy a set of golf clubs. He plans to save $75 per month. Write an equation that Frank can solve to determine the amount of money he still has to save (y) in relation to the number of months (x) in which he saved money. what is the slope of that equation?
Answers
A rectangular store measured 6.5m by 7.9m. a square tile of side 20cm is used to cover the floor. approximately how many tiles were used ?
Answers
The number of squares tiles that will be required to floor the rectangular store is approximately 1284 tiles
How to find the number of tiles used for the rectangular floor?The rectangular store measures 6.5m by 7.9m.
Therefore,
area of a rectangle = lw
where
l = lengthw = widthTherefore,
area of a rectangle = 6.5 × 7.9
area of a rectangle = 51.35 m²
The square tiles used for the floor is 20cm each. Therefore,
20 cm = 0.2m
hence
area of the square tile = 0.2² = 0.04 m²
number of tiles = 51.35 / 0.04 = 1283.5
number of tiles ≈ 1284 tiles
learn more on rectangle here:https://brainly.com/question/1040195
#SPJ1
The point slope form of the equation off the line that passes through (-4, -3) and (12, 1) is y -1=1/4(x-12). What is the standard form of the equation for this line ?
Answers
Y-1=1/4x-3
Y=1/4x-3+1
Y=1/4x-2
Now write it in standard form ax+by+c
-1/4x+y=-2
It’s better not to have a negative in front so y-1/4x=-2
Tyna simplified the expression 3x^3/12x^-2 to x/4. What was tyna’s mistake?
Answers
Answer:
She added the exponents instead of subtracting them.
Step-by-step explanation:
geometry help pls right triangles i’ll mark brainlist
Answers
For each value of x, determine whether it is a solution to 24<4x .
Answers
Answer:
No, Yes, No, Yes
Step-by-step explanation:
1. 24
each year, more than 2 million people in the united states become infected with bacteria that are resistant to antibiotics. in particular, the centers of disease control and prevention have launched studies of drug-resistant gonorrhea.† suppose that, of 221 cases tested in a certain state, 14 were found to be drug-resistant. suppose also that, of 322 cases tested in another state, 6 were found to be drug-resistant. do these data suggest a statistically significant difference between the proportions of drug-resistant cases in the two states? use a 0.02 level of significance. (let p1
Answers
Yes, These data suggest a statistically significant difference between the proportions of drug-resistant cases in the two cities.
In first city, the drug-resistant proportion is significant while In other city, It is not significant.
What is Ratio and proportion ?
A ratio is an ordered pair of numbers a and b, expressed as a / b, where b is not equal to 0. A percentage is an equation in which two ratios are made equal to one another.
Let the first city to be City A and the other city as City B.
In city A, 14 cases are of drug-resistant out of total 221 cases.
In city B, 6 cases are of drug-resistant out of total 322 cases.
We'll find the proportion of drug-resistant cases of both cities,
City A = 14 / 221 = 0.06 > 0.02
City B = 6 / 322 = 0.018 < 0.02
If use a 0.02 level of significance then,
City A has significant drug-resistant cases while City B does not have significant cases.
Learn more about Ratio and proportion from the link given below :
https://brainly.com/question/12024093
#SPJ4
pls help asap if you can!!!!
Answers
The statement that proves that angle XWY is equal to angle ZYW is
A. If two parallels are cut by a transverse, then alternate interior angles are congruent
What are alternate interior anglesAlternate interior angles are a pair of angles that are formed on opposite sides of a transversal line when two parallel lines are intersected by the transversal.
When a transversal intersects two parallel lines, it creates eight angles. Among these angles, the alternate interior angles are located on the inside of the parallel lines and on opposite sides of the transversal.
In a parallelogram, the two opposite sides are parallel to each other hence the line crossing them will lead to formation of alternate interior angles
Learn more about alternate interior angles at
https://brainly.com/question/20344743
#SPJ1
In the coordinate plane, draw ABCD with A(-5,0), B(1,-7), C(8,-1), and D(2,6). Then give the most precise name for ABCD and prove your conclusion.
Answers
Drawing the points A, B, C and D in the coordinate plane, we have:
In order to find the most precise name of ABCD, first let's find the slope of each side, using the formula:
\(m=\frac{y_2-y_1}{x_2-x_1}\)So calculating the slope of each side, we have:
\(\begin{gathered} A\text{ and }B\colon \\ m=\frac{-7-0}{1-(-5)}=-\frac{7}{6} \\ B\text{ and }C\colon \\ m=\frac{-1-(-7)}{8-1}=\frac{6}{7} \\ C\text{ and }D\colon \\ m=\frac{6-(-1)}{2-8}=-\frac{7}{6} \\ D\text{ and }A\colon \\ m=\frac{0-6}{-5-2_{}}=\frac{6}{7} \end{gathered}\)Since the slopes of opposite sides are the same, they are parallel. Also, since the slopes of adjacent sides follow the rule m1 = -1 / m2, they are perpendicular.
So we already know that the figure is a rectangle. In order to find if the figure is a square, let's find the length of all sides using the formula for the distance between two points:
\(\begin{gathered} d=\sqrt[]{(y_2-y_1)^2+(x_2-x_1)^2_{}} \\ d_{AB}=\sqrt[]{(-7-0)^2+(1-(-5))^2}=\sqrt[]{49+36}=\sqrt[]{85} \\ d_{BC}=\sqrt[]{(-1-(-7))^2+(8-1)^2}=\sqrt[]{36+49}=\sqrt[]{85} \\ d_{CD}=\sqrt[]{(6-(-1))^2+(2-8)^2_{}}=\sqrt[]{49+36}=\sqrt[]{85} \\ d_{DA}=\sqrt[]{(0-6)^2+(-5-2)^2}=\sqrt[]{36+49}=\sqrt[]{85} \end{gathered}\)All sides have the same length, so the figure ABCD is a square.
Identify the triangle as scalene isosceles or equilateral A(0,-4) B(0,-9) C(-2,-5)
Answers
The triangle that has the coordinates as A(0,-4) B(0,-9) C(-2,-5) is; A scalene Triangle
How to find the distance between two coordinates?The formula for the distance between two coordinates is;
D = √[(y₂ - y₁)² + (x₂ - x₁)²]
Thus;
Distance AB = √[(-9 + 4)² + (0 - 0)²]
Distance AB = √25
Distance AB = 5
Distance BC = √[(-5 + 9)² + (-2 - 0)²]
Distance BC = √20
Distance CA = √[(-4 + 5)² + (-2 - 0)²]
Distance CA = √5
Since the three sides all have different lengths, then they the triangle is said to be a scalene triangle.
Read more about distance between coordinates at; https://brainly.com/question/7243416
#SPJ1
What is 35% of 130 write your answer in
Answers
Answer:
45.5
Step-by-step explanation:
....................
the answer choices are AA, SAS, SSS or Not Similar.
Answers
the given triangles are not similar
so they will not be congruent
so the answer is not similar
100 students have a mean IQ of 98.9 with standard deviation 5.2. We wish to estimate with 99% confidence the mean IQ of all students. We should use:
Answers
About 99.7% of individuals have IQ scores in the interval 100 ± 3 ( 15 ) = [ 55 , 145 ] .
What is IQ ?A total score obtained from a series of standardized tests or subtests created to gauge human intelligence is known as an intelligence quotient (IQ). The psychologist William Stern created the abbreviation "IQ" for the German term Intelligent quotient, which he used to refer to a scoring system for intelligence tests at the University of Breslau that he promoted in a 1912 book.
In the past, a person's IQ was determined by dividing their mental age score—obtained after taking an intelligence test—by their chronological age, which was also stated in years and months. To get the IQ score, the resulting fraction (quotient) was multiplied by 100. The raw score for contemporary IQ tests is converted to a normal distribution with a mean of 100 and a standard deviation of 15.
To learn more about IQ from the given link:
https://brainly.com/question/10758806
#SPJ4
Amy spent $6.00 for 2 gallons of gas. Bobby paid $15.00 for 6 gallons of gas. Carlos paid $32.00 for 8 gallons of gas. List the people in order of how much they paid for one gallon of gas, from the cheapest to the most expensive cost per gallon. Amy, Carlos, Bobby Amy, Bobby, Carlos Bobby, Amy, Carlos Bobby, Carlos, Amy
Answers
Answer: Bobby, Amy, Carlos
Step-by-step explanation:
Amy spent $6.00 for 2 gallons of gas.
The price per gallon will be:
= $6/2
= $3 per gallon
Bobby paid $15.00 for 6 gallons of gas.
The price per gallon will be:
= $15/6
= $2.5 per gallon
Carlos paid $32.00 for 8 gallons of gas.
The price per gallon will be:
= $32/8
= $4 per gallon
From the cheapest to the most expensive will be:
Bobby, Amy, Carlos
Answer:
Bobby,Amy,Carlos
Step-by-step explanation:
hy the Masses of the Particles
Which statement(s) correctly compare the masses of protons, neutrons, and electrons check all that apply?
Answers
Answer:
Protons and neutrons have similar mass. TRUE
Protons and electrons have similar mass. FALSE
Neutrons and electrons have similar mass. FALSE
Protons are smaller than a neutron or an electron. FALSE
Neutrons are smaller than a proton or an electron. FALSE
Electrons are smaller than a proton or a neutron. TRUE
what is sum of 109 and h as an algebraic expression
Answers
Answer:
to be honest idon'tknow
Step-by-step explanation:
HELP ASAP !!!!!!!!
The graphs below have the same shape. What is the equation of the blue graph
Answers
Answer:
G(x) = x^3 + 1
Step-by-step explanation:
+1 shows that it moved to the right
but x^3 will stay
1 .9 times 42 .5
More questions to come
Answers
Answer:
80.75
Step-by-step explanation:
130 apples at the party. There were 3 times as many yellow apples as green apples, there were twice as many red apples as yellow apples. How many red apples were at the party
Answers
Answer: There were 78 red apples at the party.
Step-by-step explanation:
This situation can be represented by the equation
x + 3x + 2(3x) = 130 where x is the number of green apples, 3x is the number of yellow apples and 2(3x) is the number of red apples.
Now solve for x
x +3x +2(3x) =130
4x + 6x = 130
10x = 130
x = 13
Now we know that x is 13 so put it into the expression for red apples and solve for the actual number of red apples.
2 * (3*13) = ?
2 * 39 = 78
Gather two random samples of process data (make sure sample size is big enough). Use the statistical inference technique of hypothesis testing to determine the process parameters. Describe how you gathered the data, set up the hypothesis and determined the process parameters
Answers
The sample data to estimate the population parameter with a certain degree of confidence.
Hypothesis testing is a statistical inference technique used to determine if a hypothesis about a population parameter is supported by the sample data. The hypothesis testing procedure consists of several steps:
State the null hypothesis and the alternative hypothesis: The null hypothesis (H0) is the hypothesis that there is no significant difference between the sample data and the population parameter. The alternative hypothesis (Ha) is the hypothesis that there is a significant difference between the sample data and the population parameter.
Choose a significance level: The significance level (α) is the probability of rejecting the null hypothesis when it is actually true. A commonly used significance level is 0.05.
Collect the sample data: The sample data should be collected randomly and should be representative of the population.
Calculate the test statistic: The test statistic is a numerical value calculated from the sample data that measures how well the sample data support the null hypothesis.
Determine the p-value: The p-value is the probability of obtaining a test statistic as extreme or more extreme than the one calculated from the sample data, assuming the null hypothesis is true.
Make a decision: If the p-value is less than the significance level, reject the null hypothesis and accept the alternative hypothesis. If the p-value is greater than or equal to the significance level, fail to reject the null hypothesis.
To give an example, let's say we want to determine if the mean weight of apples produced by a particular orchard is different from 150 grams. We collect two random samples of apples, each with a sample size of 50. We set up the hypothesis as follows:
H0: μ = 150
Ha: μ ≠ 150
We choose a significance level of 0.05. We calculate the test statistic as follows:
t = (x - μ) / (s / sqrt(n))
where x is the sample mean, μ is the population mean, s is the sample standard deviation, and n is the sample size.
Let's say we get a t-value of 2.5 and a p-value of 0.015. Since the p-value is less than the significance level, we reject the null hypothesis and conclude that there is sufficient evidence to suggest that the mean weight of apples produced by the orchard is different from 150 grams. We can then use the sample data to estimate the population parameter with a certain degree of confidence.
To learn more about hypothesis visit:
https://brainly.com/question/31319397
#SPJ11
Find an equation doe the line that is tangent to the curve y=3x^3-3x at the point (-1,0)
Answers
The tangent to the given curve at the point (1,0) is: y=6x-6.
What is tangent?The straight line that "just touches" the curve at a given location is referred to as the tangent line to a plane curve in geometry. It was described by Leibniz as the path connecting two points on a curve that are infinitely near together.When you ride a bicycle, every point on the wheel's circumference forms a tangent with the road, providing a practical illustration of a tangent.When you ride a bicycle, every point on the wheel's circumference forms a tangent with the road, providing a practical illustration of a tangent.A straight line that only touches a circle once is said to be tangent to it. The term "point of tangency" refers to this location.The first derivative f'(x), the slope (tangent) of the original curve, may be obtained at every point (x,y) on the curve because the supplied curve is a continuous function, making Eq. 1 differetiable at every x.
The slope of the tangent at x=1 is given by the first derivative of Eq. 1: f'(1)=9(1)2-3=6.
A line that passes through the point (x1, y1) and has a slope of m has the equation:
(y-y1)=m(x-x1) ··· Eq.2 (the point- slope form of linear function)
Here, x1=1, y1=0, and m=f'(x1)=6. Add these numbers to Eq. 2. It is possible to repeat and simplify Eq. 2 as follows: y-0=6(x-1) ⇒ y=6x-6
Consequently, y=6x-6 is the tangent to the given curve at position (1, 0).
To learn more about the tangent, refer to:
https://brainly.com/question/14790856
#SPJ4
1. Dilate the function p(x) = (x+2),
by (2x + 4)
Answers
Answer:
Hi how are you doing today Jasmine
Aubree is making different shades of pink paint to use for an art project. A batch of dark pink uses 2.5 cups of red paint and 1.5 cups of white paint. A batch of light pink uses 0.75 cup of red paint with 1.25 cups of white paint. She begins with a gallon of red and a gallon of white paint. How much of each color paint will she have left if she makes a batch of dark pink and light pink every day for a week?
Answers
Answer:
Cups of red paint for a batch of dark pink - 2.5
Number of gallons of red paint that she starts with - 1
Cups of red paint for a batch of light pink - i did not get that one
Step-by-step explanation:
ratings services measure television audiences. the measurement of the percentage of all households with televisions that are tuned into the same show at the same time is called
Answers
Therefore , the solution of the given problem of percentage comes out to be were tuned in to a specific program or show at a given moment.
What is percentage?A number or figure stated as a fraction of 100 is referred to as "a%" in statistics. The versions that begin with "pct," "pct," and "pc" are also uncommon. The common way to indicate it is with the numeral "%," though. Furthermore, there are no indicators and a flat ratio of every single thing to the total number. Percentages are basically integers because they frequently add up to 100.
Here,
The TV ratings, also known as the TV audience share, are a measurement of the proportion of all television-owning households that are watching the same program at the same moment.
Networks and marketers use it as a gauge of a TV show's popularity to decide how successful a program will be and how much to charge for advertising during it.
Companies like Nielsen, which use a sample of homes with televisions to estimate the audience size for a given program or show, are usually in charge of gathering the TV ratings.
TV ratings are expressed as a proportion of all households with televisions that were tuned in to a specific program or show at a given moment.
To know more about percentage visit:
https://brainly.com/question/28269290
#SPJ1
Select the boxes in the table to show whether the power of 10 is equal to 10^-3, Less then 10^-3, or greater than 10^-3, when written in scientific notation.
Answers
Answer:
I uploaded the answer to a file hosting. Here's link:
Step-by-step explanation:
