Answer:
90+30+2x=180
Step-by-step explanation:
2x is an angle, so we need to find its measure
square symbol at corner of triangle means 90 degrees
we know the angle at the top corner is 30 degrees
the sum of all the angles in a triangle is 180 degrees
so the sum of 90 degrees, 30 degrees, and 2x degrees is 180 degrees
translate it to mathematical format: 90+30+2x=180
Estimate the line of best fit using two points on the line. 10- 8765SYON- +H+H+ -H ● IM (7.4) (10,2) 8 9 10
The equation of the line of best fit is: y = (-2/3)x + 26/3
To estimate the line of best fit using two points on the line, we can use the slope-intercept form of a linear equation, which is y = mx + b, where m is the slope of the line and b is the y-intercept.
Given the two points (7, 4) and (10, 2), we can calculate the slope (m) using the formula:
m = (y2 - y1) / (x2 - x1)
Substituting the coordinates of the points:
m = (2 - 4) / (10 - 7)
m = -2 / 3
Now that we have the slope, we can substitute it into the equation and solve for the y-intercept (b). Let's use the coordinates of one of the points, such as (7, 4):
4 = (-2/3)(7) + b
4 = -14/3 + b
To find the value of b, we can rearrange the equation:
b = 4 + 14/3
b = 12/3 + 14/3
b = 26/3
For more such questions on equation
https://brainly.com/question/22688504
#SPJ8
What is the median of the second half of the data? $777, $498, $619, $379, $895, $1,256, $$1,052
Answer:
Median: 379
Tho if it wrong Which half $777, $498, $619, $379, $895, $1,256, $1,052?
Sergey is solving 5x2 + 20x – 7 = 0. Which steps could he use to solve the quadratic equation by completing the square? Select three options. 5(x2 + 4x + 4) = –7 + 20 x + 2 = Plus or minus StartRoot StartFraction 27 Over 5 EndFraction EndRoot 5(x2 + 4x) = 7 5(x2 + 4x + 4) = 7 + 20 5(x2 + 4x) = –7
The steps Sergey could use to solve the quadratic equation by completing the square is 5(x2 + 4x) = –7
How to use the completing the square method?We should know that in completing the square method both sides of the equation are made perfect squares.
The given equation is 5x²+20x-7=0
Solving this equation by completing the square method we have
5(x²+4x+4)=-7
This means that (x+2)=±√27/5
Simplifying further we have
5(x²+4x)=7
Then expanding to make ²HS a perfect square we have
5(x²+4x+4)=7+20
This means that 5(x²+4x)=-7
Therefore the step he could use is 5(x²+4x)=-7\
Learn more about completing the square on https://brainly.com/question/4822356
#SPJ1
elect all equations that represent the number of subscribers, , in terms of months since the beginning of the year (when she had 150 subscribers).
On average, adults in the US consume 2741 calories per day, with a standard deviation equal to 608. A sample of 9281 random US adults participate in a study on eating behaviors. What is the probability that their mean caloric intake differs by more than 8.3 calories per day from the population mean? Round your answer to four decimal places.
f r e e
p o i n t s :)
Answer:
Hey
Step-by-step explanation:
What is the value of x in the rhombus below?
O A. 28
O B. 56
O C. 58
O D. 24
Answer:
A. 28
Step-by-step explanation:
x = 28
Value of x in the rhombus is \(28^{0}\).
What is rhombus?A rhombus can be defined as a special parallelogram as it fulfills the requirements of a parallelogram, i.e. a quadrilateral with two pairs of parallel sides. In addition to this, a rhombus has all four sides equal just like a square.
According to the question
DB, CA are diagonal line
So, <CAB + <DBA = \(90^{0}\)
⇒ x + 6 + 2x = \(90^{0}\)
⇒ 3x = 90 - 6
⇒ 3x = 84
⇒ x = \(\frac{84}{3}\)
⇒ x = \(28^{0}\)
Hence, value of x in the rhombus is \(28^{0}\).
Find out more information about rhombus is \(28^{0}\).
https://brainly.com/question/27870968
#SPJ3
Select all the rates that are unit rates.
113
231
23
31
19
Answer:
\(\frac{2/3}{1}\) and \(\frac{3}{1}\)
Step-by-step explanation:
Options
\(\frac{1}{1/3}\) \(\frac{2/3}{1}\) \(\frac{2}{3}\) \(\frac{3}{1}\) \(\frac{1}{9}\)
Required
Select the unit rates
Unit rate involve two items where the first item being measured can be any positive number, but the second item must be measured in units (i.e. 1)
For clarity:
If \(\frac{a}{b}\) represents unit rate, then \(b = 1\)
Having said that:
Only \(\frac{2/3}{1}\) and \(\frac{3}{1}\) satisfy the condition of unit rates; others are not because they have a denominator other than 1
If a perpetuity pays a cash flow (C) every time period, forever, how come it is not worth an
infinite amount of money right now? Explain.
Deion was the lucky journalist assigned to cover the Best Beard Competition. He recorded the contestants' beard colors in his notepad. Deion also noted if the contestants were signed up for the mustache competition later in the day. Dark beard Light beard Only in the beard competition 4 3 Also in the mustache competition 3 2 What is the probability that a randomly selected contestant is only in the beard competition and has a light beard?
HELP PLZ 20 POINTSSSS
Answer:
cube................
Answer:
A)
Step-by-step explanations:
The pH scale measures how acidic or basic a substance is. Lemon juice is said to have a pH of less than 4 and greater than 1.5. Model the normal range of pH values of lemon juice, using a compound inequality.
1.5 > x > 4
1.5 < x < 4
1.5 ≤ x ≤ 4
1.5 ≥ x ≥ 4
The normal range using a compound inequality is 1.5 < x < 4
How to model the normal range using a compound inequality.From the question, we have the following parameters that can be used in our computation:
pH values less than 4
pH values greater than 1.5
Represent the pH values with x
Using the above as a guide, we have the following:
x is less than 4
x is greater than 1.5
When represented as inequality, we have
x < 4 and x > 1.5
Combine the inequalities
1.5 < x < 4
Hence, the normal range is 1.5 < x < 4
Read more about inequalities
https://brainly.com/question/25275758
#SPJ1
my bro has homework and he needs help but I don't have the time to help him
Answer: 25
Step-by-step explanation:
Subtract 46.50 - 46.25 and you’ll get 25
Billy took 5 tests in his math class. He scored an 89,88,93,90 and 81. What is the variance of his grades in these test? If necessary, round to the nearest hundredth.
The variance of Billy's grades obtained from his test scores is 15.76
What is variance?The variance is a measure of variability or spread a dataset. The variance can be calculated from the sum of the square of the differences of the data points from the mean divided by the number or count of the data points.
The variance of Billy's test scores can be calculated by finding the mean or the average of the scores, then finding the sum of the squares of the differences of each score from the mean as follows;
The mean score = (89 + 88 + 93 + 90 + 81)/5 = 88.2
The square of the differences of the values from the mean can be calculated as follows;
(89 - 88.2)² = 0.64, (88 - 88.2)² = 0.04, (93 - 88.2)² = 23.04, (90 - 88.2)² = 3.24, and (81 - 88.2)² = 51.84
The sum of the square of the differences is therefore;
0.64 + 0.04 + 23.04 + 3.24 + 51.84 = 78.8
The variance is therefore; 78.8/5 = 15.76Learn more on the variance of a set of data here: https://brainly.com/question/30701163
#SPJ1
Solve the equation and state the value of x
w - 2 = -8- 5w
Answer:
x=-1
Step-by-step explanation:
w-2=-8-5w
-2=-8-6w
+8 +8
6=-6w
divide 6 in both side
x=-1
hope this help.
G
If f(x) = 6x – 4, what is f(x) when x = 8?
Answer: f(x)=44
Step-by-step explanation:
Since x is given, we can directly plug it into our function.
\(f(8)=6(8)-4\)
\(f(8)=48-4\)
\(f(8)=44\)
The value of a 4 in the one thousands place is what FRACTION of the value of a 4 in the ten thousands place?
Answer:
1/10 = 0.1
Step-by-step explanation:
The value of a 4 in the one thousands place = 4000
the value of a 4 in the ten thousands
= 40000
In fraction,The value of a 4 in the one thousands place to the value of a 4 in the ten thousands place
= 4000/40000
= 4/40
= 1/10
= 0.1
Solve for a,b,and/or c
Help solve ASAP!
Answer:
a=90-67=23°
.................
The measure of 2 bis 120° The measure of Z5 is 100°, What is the measure of 2 4?
A. 60
в. 80
c. 140
D. 40
Lucy bought a couch that cost $1,000.00. she bought it using her debit card. She forgot she only has $900 in her checking account. What should lucy be worried about? 1) how much tax is included 2) discounts 3) nothing 4) overdraft fees
Answer:
4) overdraft fees
Step-by-step explanation:
if she now has a negative balance then she owes money to the couch store
Answer:
Overdraft fees
Step-by-step explanation:
An overdraft occurs when money is withdrawn in excess of what is on the current account. In this situation the account is said to be "overdrawn".
Use the drawing tool(s) to form the correct answer on the provided graph.
Graph the following step function.
They have different y-intercepts but the same end behavior. Thus, option A is correct.
What is Step functiοn?A step functiοn is mathematical functiοn that takes οn finite number οf cοnstant values οver intervals οf its dοmain. It is alsο knοwn as staircase functiοn οr piecewise cοnstant functiοn. The cοnstant values that functiοn takes οn are οften referred tο as "steps" οf the functiοn.
Tο graph the step functiοn, yοu wοuld start by drawing a cοοrdinate plane with the hοrizοntal axis ranging frοm -5 tο 5 and the vertical axis ranging frοm -2 tο 2. Then, yοu wοuld plοt the pοints (-5,-1), (-4,-1), (-3,0), (-2,1), (-1,1), (0,0), (1,1), (2,-1), (3,-1), (4,0), and (5,1) οn the graph.
They have different y-intercepts but the same end behavior.
They have different y-intercepts because function f(x) is 4, while the y-intercept on graph is 6
But they have the same end behavior at 2.
To know more about y-intercepts visit:
https://brainly.com/question/14180189
#SPJ1
Complete question:
Function g is represented by the equation.
\(\rm g(x) = 4 (\frac14)^x + 2\)
Which statement correctly compares the two functions?
A. they have different Y-intercepts but the same end behavior
B. they have the same Y-intercept and the same end behavior
C. they have the same Y-intercept but different end behavior
D. they have different Y-intercepts and different end behavior
What is it mean?
a. 27.19
b. 27.29
c. 28.10
d. 28.11
What is an example of a situation that you might be able to use an equation with a single unknown to help understand?
Equations with a single unknown can be powerful tools in helping us understand complex phenomena and make predictions about how they will behave.
Yes, equations with a single unknown can be very helpful in understanding various phenomena. Mathematical equations allow us to express relationships between different variables and make predictions about how they will behave under different conditions. By solving equations, we can find the values of unknown variables and gain a deeper understanding of the system we are studying.
Other examples of equations with a single unknown that have had a significant impact include Newton's second law of motion, F=ma, which relates force (F) to mass (m) and acceleration (a), and the ideal gas law, PV=nRT, which relates pressure (P), volume (V), number of moles (n), and temperature (T) of a gas.
equations with a single unknown can be powerful tools in helping us understand complex phenomena and make predictions about how they will behave.
To know more about complex visit:
https://brainly.com/question/29377605
#SPJ1
The value of y is directly proportional to the value of x. If y = 35 when x = 140, what is the value of y when x = 70?
Answer:
y is just x divided by 4 so in this case y would be 17.5
Step-by-step explanation:
Write the equation of the line graphed below in Slope-Intercept and Point-Slope Form. Do not use the y-intercept in Point-Slope Form.
Graph below. Will give brainliest
Answer:
Point-slope form: y-3=-1(x-2)
Slope-intercept form: y=-x+5
The equation of the line will be y = - x + 5
What is an equation?The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.
The slope and the equation of the line will be given as:-
Point-slope form:
y - 2 = - 1 ( x - 3 )
Slope-intercept form:
y = - x + 5
Therefore the equation of the line will be y = - x + 5
To know more about equations follow
https://brainly.com/question/2972832
#SPJ2
3-gallon container of disinfectant costs $52.80. What is the price per cup?
Does the table show a proportional relationship between x and y? Explain.
x y
2 4
4 16
7 79
10 100
Answer:
no
Step-by-step explanation:
if the y 79 was changed to 49 then yes(in that case y=x^2) but the x 7 y 79 messes the relationship up.
If 10 people can paint a fence in 3 days, how long would it take 6 is this:
A) Direct proportion
B) Inverse proportion
Answer:
B.Inverse proportion
I am stuck please help with this graph.
An equation for the function graphed above include the following: g(x) = -1/4|x + 1| - 2.
How to interpret and determine the equation of g(x)?By critically observing the graph of this absolute value function, we can reasonably infer and logically deduce that the parent absolute value function f(x) = |x| was vertically compressed by a factor of 1/4, reflected over the x-axis, followed by a vertical translation 2 units down, and then a horizontal translation to the left by 1 unit, in order to produce the transformed absolute value function as follows;
f(x) = |x|
y = A|x + B| + C
g(x) = -1/4|x + 1| - 2
In conclusion, the value of the variables A, B, and C are -1/4, 1, and 2 respectively.
Read more on absolute value function here: brainly.com/question/28308900
#SPJ1
Rewrite the function by completing the square.
h (x)=x^2+3x−18
Answer: (x+6)(x-3)
Step-by-step explanation:
y=x^2+3x-18
(x+6)(x-3 )