Answer:
g(x)=6-4x
6-4x=-2
-4x=-8
x=2
Help 20 points (show your work)
The measure of angle ADC in the geometric system is equal to 55°.
How to determine the value of an angle related to a geometric system
In this question we find a geometric system formed by a quadrilateral and an angle vertical to a vertex of the quadrilateral. Angle CDE is supplementary to angles EDF and ADC. Two angles are supplementary whose sum of measures equals 180°. Therefore:
m ∠ CDE + m ∠ EDF = 180°
(2 · x + 1) + (x - 7) = 180°
3 · x - 6 = 180°
3 · x = 186°
x = 62
m ∠ CDE = 2 · x + 1
m ∠ CDE = 2 · 62 + 1
m ∠ CDE = 125°
m ∠ ADC = 180° - 125°
m ∠ ADC = 55°
To learn more on supplementary angles: https://brainly.com/question/29117467
#SPJ1
A biologist wants to estimate how many fish are in a lake. The biologist takes a sample of 10 fish from the lake and tags all 10 fish. The biologist then releases the fish back into the lake. The nex day, the biologist retums to the lake and takes a sample of 7 fish. Of those fish, 2 of them have tags. Using this information, estimate the number of fish in the lake.
If the nex day, the biologist retums to the lake and takes a sample of 7 fish. Of those fish, 2 of them have tags. The estimated number of fish in the lake is 35 fish.
How to find the estimated number?Let x represent the estimated number of fish in the lake
Hence,
x /10 = 7/2
Cross multiply
2x = 10 × 7
2x = 70
Divide both side by 2x
x =70/2
x = 35 fish
Therefore 35 is the number of fish.
Learn more about estimated number here:https://brainly.com/question/28434103
#SPJ1
Which line has a negative slope?
Answer:
line j
Step-by-step explanation:
A machine stamps 360 metal parts in 15 minutes. Find the unit rate in parts per minute. per minute
In the diagram, the measures of 23 and 27 are 45°. The measure of 25 is
135°. Are lines cand dparallel?
F
5
8
OA. Yes, because 23 and 27 are congruent.
OB. No, because 27 and 25 are not congruent.
C. Yes, because 25 and 27 are supplementary.
D. No, because 23 and 25 are not supplementary.
The correct answer is D. No because 23 and 25 are not supplementary.
In the given diagram, it is stated that the measures of angles 23 and 27 are 45°, and the measure of angle 25 is 135°. To determine if lines C and D are parallel, we need to analyze the angles formed by these lines.
If the alternate interior angles or corresponding angles are congruent, then the lines are parallel. However, in this case, we don't have enough information about the angles formed by lines C and D to make that determination.
The fact that angle 23 and angle 27 are congruent (both measuring 45°) doesn't provide any information about the relationship between lines C and D. Similarly, the measure of angle 25 being 135° doesn't give us any insight into the parallelism of lines C and D. Therefore, we cannot conclude that lines C and D are parallel based on the given information, and the correct answer is D.
For more such answers on supplementary angle
https://brainly.com/question/12919120
#SPJ8
geometrical prove that a + b x a minus b is equals to a square minus b square
Step-by-step explanation:
a² + b²
difference of two square
= (a + b)(a - b)
Answer:
see explanation
Step-by-step explanation:
(a + b)(a - b)
each term in the second factor is multiplied by each term in the first factor, that is
a(a - b) + b(a - b) ← distribute parenthesis
= a² - ab + ab - b² ← collect like terms
= a² - b²
in the expression 2/5 w +55 what is the variable, the coefficient and the constant
The parameters of the expression are given as
25w+55
variable=wcoefficient = coefficient of variable (w)=25constant=55What is the coefficient ?A multiplicative factor in some terms of a polynomial, a series, or an expression is referred to as a coefficient. Although a coefficient is often a number, it may really be any expression. It is possible to refer to the coefficients themselves as parameters in situations when they themselves are variables.
A sign that may stand in for any other item in mathematics is known as a variable. To be more specific, a variable may stand in for a numeric value, a vector, a matrix, a function, the argument of a function, a set, or an individual component of a set.
Generally, the equation for expression is mathematically given as
25w+55
Therefore
variable=wcoefficient = coefficient of variable (w)=25constant=55Read more about constant
https://brainly.com/question/14159361
#SPJ1
Find the surface area of the pyramid. The side lengths of the base are equal.
17 cm
12 cm
These are
square centimeters.
Answer:
The answer is 204 square cm.
Step-by-step explanation:
You are asking for the surface area, and while calculating the surface area you will multiply the quantities.
Surface Areas: 17 cm multiply 12 cm
17 X 12 = 204
The answer is 204 sq. cm
Answer:
204
Step-by-step explanation:
Is the following relation a function? Justify your answer.
No, because there is an input value with more than one output value
No, because there is an output value with more than one input value
Yes, because each input value has only one output value
Yes, because each output value has only one input value
Answer:
A
Step-by-step explanation:
There are two inputs for one output, which means the relation is not a function.
Answer:
A
Step-by-step explanation:
En una sección de un hospital hay 250 pacientes, de los cuales 180 tienen diabetes, 100 tienen hipertensión, 70 tienen las dos enfermedades, realiza un diagrama de Venn y determina cuantos pacientes tienen SOLO diabetes o SOLO hipertensión
The number of patients that have ONLY diabetes is 250 or ONLY hypertension is 170.
What is a Venn diagram?This refers to a simple representation of sets by diagrams. It usually makes use of a rectangle as the universal set and circles for the sets under consideration. It is also called the Euler-Venn diagram.
When solving Venn diagram problem, we use expressions like:n(A) = number of elements that belong to set A only
n (B) = number of elements that belong to set B only
n(A ∩ B) = number of elements that belong to set A and B both
n ( A ∪ B) = the number of elements that belong to set A, B, and outside set.
From the question:Total Number of patients in the hospital = 180
Number of people with diabetes, D = 180
Number of people with hypertension, H = 100
Total Number of patients in the hospital with both diabetes, D, and hypertension, H = 70
To determine how many patients have ONLY diabetes, D or ONLY hypertension, Hn(H) = 180 + 70
= 250
n (D) = 100+70
= 170
Learn more about Venn diagram on
https://brainly.com/question/24515059
#SPJ1
2y = 4x - 12
Find the x and the y intercept of the line.
A spherical chocolate covered candy hasa diameter of 8cm. 4Part of the candy is a chocolate shell thatis .5cm thick.What is the volume ofjust the chocolate shell?
We want to calculate the volume of the spherical shell of chocolate.
The chocolate shell is spherical with a thickness of 0.5cm
Volumes of spherical shells can be calculated with the formula;
\(V_{shell}=\frac{4}{3}\pi(R^3-r^3)\)The outer diameter is 8cm. The outer radius is therefore 4cm
The inner diameter is 8-2(0.5)=7cm. The inner radius is therefore 3.5cm
Therefore, we can find the volume of the chocolate shell as;
\(V_{shell}=\frac{4}{3}\pi(4^3-3.5^3)=88.5\operatorname{cm}^3\)Therefore,
\(V_{shell}=88.5\operatorname{cm}^3\)Which equation is equivalent to this equation and written with the same base?
4x+1=16x−1
Answer:
\( 2^{2x + 2} = 2^{4x - 4} \)
Step-by-step explanation:
\( 4^{x + 1} = 16^{x - 1} \)
\( 2^{2(x + 1)} = 2^{4(x - 1)} \)
\( 2^{2x + 2} = 2^{4x - 4} \)
If f (x)=3x-2 and g(x) =6-4 find f(x) + g(x)
Answer:
3x
Step-by-step explanation:
Waiting times (in minutes) of customers at a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the coefficient of variation for each of the two sets of data, then compare the variation.
Bank A (single line) Bank B (individual lines)
6.5 4.0
6.6 5.4
6.7 5.9
6.7 6.2
7.1 6.8
7.4 7.7
7.5 7.7
7.7 8.5
7.7 9.4
7.7 9.8
A) The coefficient of variation for the waiting times at Bank A is
(Round to one decimal place as needed.)
B) The coefficient of variation for the waiting times at Bank B is
(Round to one decimal place as needed.)
C)Is there a difference in variation between the two data sets?
The coefficient of variation for Bank A is approximately 8.04%, while the coefficient of variation for Bank B is approximately 25.55%.
To find the coefficient of variation for each set of data, we need to calculate the mean and standard deviation for each set. The coefficient of variation is then calculated by dividing the standard deviation by the mean and multiplying by 100.
Let's calculate the coefficient of variation for each set of data:
Bank A (single line):
Mean: Calculate the mean of the data set.
Mean = (6.5 + 6.6 + 6.7 + 6.7 + 7.1 + 7.4 + 7.5 + 7.7 + 7.7 + 7.7) / 10 = 7.03 minutes
Standard deviation: Calculate the standard deviation of the data set.
Standard deviation = √[(6.5 - 7.03)² + (6.6 - 7.03)² + ... + (7.7 - 7.03)²] / 10 ≈ 0.565 minutes
Coefficient of variation:
Coefficient of variation = (0.565 / 7.03) * 100 ≈ 8.04%
Bank B (individual lines):
Mean: Calculate the mean of the data set.
Mean = (4.0 + 5.4 + 5.9 + 6.2 + 6.8 + 7.7 + 7.7 + 8.5 + 9.4 + 9.8) / 10 = 7.5 minutes
Standard deviation: Calculate the standard deviation of the data set.
Standard deviation = √[(4.0 - 7.5)² + (5.4 - 7.5)² + ... + (9.8 - 7.5)²] / 10 ≈ 1.916 minutes
Coefficient of variation:
Coefficient of variation = (1.916 / 7.5) * 100 ≈ 25.55%
Comparing the variation:
The coefficient of variation for Bank A is approximately 8.04%, while the coefficient of variation for Bank B is approximately 25.55%. Since the coefficient of variation measures the relative variability of the data, we can conclude that the waiting times at Bank B (individual lines) have a higher variation compared to Bank A (single line).
for such more question on coefficient
https://brainly.com/question/1038771
#SPJ8
what answer? here, can you answer that? thankyou
It should be noted that the number of sample size based on the information will be 300.
How to explain the sampleIn order to calculate the sample size, we can use the following formula:
n = z² * p * (1-p) / E²
n = 1.96² * 0.5 * (1-0.5) / 0.05²
= 300
A questionnaire is a method of gathering data that makes use of written questions to be answered by the respondents. It is a popular method of data collection because it is relatively easy to administer and can be used to collect a wide variety of information.
In the first column, the population is the entire National Capital Region (NCR). The sample is the city of Manila. In the second column, the population is all STEM students. The sample is all academic track students. In the third column, the population is all the tablespoons of sugar in the jar. The sample is one tablespoon of sugar. In the fourth column, the population is all the vowels in the word "juice". The sample is the vowel "i".
Learn more about sample on
https://brainly.com/question/24466382
#SPJ1
pls help me on area of polygons
Answer:4
Step-by-step explanation:
hoped this helped
Find a 3rd degree polynomial function with real coefficients satisfying the given condition. 2 and -3 +3i are zeros; leading coefficients is 1
A 3rd degree polynomial function with real coefficients satisfying the given condition. 2 and -3 +3i are zeros; leading coefficients is 1, is:
f(x) = x³ + 4x² + 6x - 36
What is polynomial function?An expression that consists of variables, constants, and exponents that is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial (No division operation by a variable).
A polynomial function is one that uses only non-negative integer powers or positive number coefficients of such a variables in such an expression like the quadratic function, cubic equation, and so on.
we have to find third degree polynomial, so, n = 3
Since 2 is its zero ,so, x - 2 is its factor
As complex zeros occur in conjugate pairs .
So,other factors are (x + (3 + 3i)) and (x + (3 - 3i)) ,
Firstly, we find the product of these two factors:
= x² + 6x + 9 - 9i²
= x² +6x +9 - 9(-1)
= (x² +6x + 18)
Now multiply (x² +6x + 18) with (x - 2) we get f(x):
= (x² +6x + 18) (x - 2)
= x³ - 2x² + 6x² - 12x + 18x - 36
= x³ + 4x² + 6x - 36
Correct option: b
To know more about polynomial function refer to:
https://brainly.com/question/7693326
#SPJ1
42 students either ate pizza or chicken strips at lunch at a ratio of 2:5, how many kids ate pizza?
Answer:
12 kids
Step-by-step explanation:
The answer is 12 kids because as 42 students ate pizza and chicken strips at a 2:5 ratio, we need to add 2+5=7, so 42 encounters 7 total parts. 42 divided by 7 equals 6, so 6 kids counter for each part. As pizza counters for 2 of the parts, 6x2=12 kids for pizza. Hope it helps!
What is the solution of this inequality? r−6>−11
Answer:
r > -5
Step-by-step explanation:
r - 6 > -11
+ 6 + 6
---------------
r > -5
hope this helps! :D
have a miraculous day, and brainliest is immensely appreciated!! <3
Please help for instant brainliest.
Answer:
(8, -1)
Step-by-step explanation:
its the point of intersection
Answer:
D
Step-by-step explanation:
the following lines meet up at the poitn (8,-1) which is to answer d
hope this helps
write 464000 in correct scientific notation
Answer:
The scientific notation is a method of writing very large or very small numbers in a more compact and easy to read format. It is expressed in the form of a x 10^n, where "a" is a number between 1 and 10, and "n" is an integer.
To write 464000 in correct scientific notation, we need to move the decimal point to the left until we get a number between 1 and 10. We count the number of places we moved the decimal point, and that will be the exponent of 10.
So, we can write 464000 as:
4.64 x 10^5
Therefore, the correct scientific notation of 464000 is 4.64 x 10^5.
Step-by-step explanation:
What is the area of the figure?
A. 52 in?
B. 56 in 2
C. 58 in2
D. 60 in2
Answer:
52 in.
Step-by-step explanation:
prove that
1/(sec A - tan A) =sec A + tan A
Answer:
Step-by-step explanation:
let s estimate the following
\((secA-tanA)(secA+tanA)=sec^2A-tan^2A=\dfrac{1}{cos^2A}-\dfrac{sin^2A}{cos^2A}=\dfrac{1-sin^2A}{cos^2A}=\dfrac{cos^2A}{cos^2A}=1\)
as \(cos^2A+sin^2A=1\)
it means that
\(\dfrac{1}{secA-tanA}=secA+tanA\)
hope this helps
Find each of the following by first summing all the negative and positive numbers separately
and then combining the final positive and negative. Show your work.
(a) -8+-9+7+4
(b)-18+6+-22+28
(c) 24+19+-6+10+-12
(d) -18+32+14+21+-50
Applying addition of integers, the final results of the expressions are given as follows:
a) -6.
b) -6.
c) 35.
d) -1.
How do we add two integers?To add two integers, we have to keep in mind their signals, if they are the same or different, as follows:
If they have the same signal, we keep the signal and add the numbers.If they have the different signal, we take the signal of the largest absolute number(largest number without the signal), then subtract the amounts.Hence, for item a, we have that:
-8 - 9 = -17.7 + 4 = 11.-17 + 11 = -6.For item b, the solution is found as follows:
-18 - 22 = -40.6 + 28 = 34.34 - 40 = -6.For item c, the solution is found as follows:
-6 - 12 = -18.24 + 19 + 10 = 53.53 - 18 = 35.For item d, the solution is found as follows:
-18 - 50 = -68.32 + 14 + 21 = 67.67 - 68 = -1.More can be learned about addition of integers at https://brainly.com/question/17695139
#SPJ1
Before the search and collection of evidence, there must be _______.
A. Informed consent by the owner
B. A crime
C. A chain of custody
D. A search warrant
I’m stuck between D and B because law enforcement can conduct a search without a search warrant if there is consent by the owner. It is not C because that would be either during or after the collection of evidence.
Answer:
D) A search warrant
Step-by-step explanation:
A search warrant is required before the search and collection of evidence to ensure legal authorization and protection of individuals' rights against unreasonable searches and seizures.
Option B, "A crime", is incorrect because the presence of a crime is not a prerequisite for conducting a search and collection of evidence. There are various situations where searches and evidence collection may occur without a crime being involved, such as regulatory inspections, consented searches, or investigations into potential threats or risks.
By your logic when you say law enforcement can conduct a search without a search warrant if there is consent by the owner, that would mean option A would be right, but of course, it's not.
turn this sentence into an inequality. The difference of twice a number and 5 is at most-15
I think the answer is 2x-5≤-5
Identify the graph of the inequality 2(2x-1)+7< 13 or -2x+5-10.
From the resulting solution, the correct linear inequality graph is Graph C.
Solving inequality expressionGiven the inequality equation below:
2(2x-1)+7< 13 or -2x+5 ≤ -10.
Simplify the expression
2(2x-1)+7< 13
Expand
4x - 2 + 7 < 13
4x + 5 < 13
4x < 13 - 5
4x < 8
x < 2
For the inequality -2x+5 ≤ -10.
-2x+5 ≤ -10
-2x ≤ -15
x ≥ 7.5
Hence the solution to the given system of inequalities are x < 2 and x ≥ 7.5
Learn more on inequality graph here: https://brainly.com/question/24372553
#SPJ1
Solve for r 1+3r>10 please I need this solved aspap
The solution to the inequality 1 + 3r > 10 is r > 3.
This means that any value of r greater than 3 will satisfy the inequality.
To solve the inequality 1 + 3r > 10, we need to isolate the variable r on one side of the inequality sign.
Let's begin by subtracting 1 from both sides of the inequality:
1 + 3r - 1 > 10 - 1
This simplifies to:
3r > 9
Next, we can divide both sides of the inequality by 3 to solve for r:
(3r)/3 > 9/3
This simplifies to:
r > 3
For similar question on inequality.
https://brainly.com/question/30604125
#SPJ8
I need held asp pls help me
Answer:
18/23=18/23
Step-by-step explanation:
This problem is already in simplest form.
Hope this helped!!!!