Answer:
D. x = -1.
Step-by-step explanation:
I have attached an explanation to your problem. Please see the attachment below.
Answer:
x= -1
Step-by-step explanation:
it is always the x value of where the vertex is!
I want brainliest plz
how to get the greatest common factor of 152,171 and 57
To find the greatest common factor (GCF) of three numbers, you can use the prime factorization method:
1. Find the prime factorization of each number:
- 152 = 2^3 * 19
- 171 = 3 * 3 * 19
- 57 = 3 * 19
2. Identify the common prime factors: 19 is the only common prime factor.
3. Multiply the common prime factors together: 19.
Therefore, the greatest common factor of 152, 171 and 57 is 19.
Find the measure of angle D
Answer:
81 degrees, at least that's what I got doing the math,
Step-by-step explanation:
28 = 7x + 3 - 2x
Need all the work shown too solve for X
Answer:
X = 5
Step-by-step explanation:
28 = 7x + 3 - 2x
28 = 5x + 3
28 - 3 = 5x + 3 - 3
25 = 5x
25/5 = 5x/5
X = 5
Answer:
X = 5
Step-by-step explanation:
1. Combine like terms.
2. Subtract 3 from both sides.
3. Simplify.
4. Divide both sides of the equation by the same term.
5. Simplify.
Hope this helps!
Please hurry!! Avery must hand out 270 fliers. So far.
she has handed out 90% of them. How
many fliers has Avory handed out?
Answer:
243
Step-by-step explanation:
Multiply 270 x .90 = 243
Hamburgers come in packs of 20, while buns come in packs of 12 what is the least number of packs you should buy in order to have the same numbers of hamburgers and buns?
3. Assume that there are only 2 commodities and that the utility function is multiplication of the form U = 1÷4qxqy.Find the demand function of the commodity x and y and explain the relationship between price and income in relation to the demand.
Answer:
Step-by-step explanation:
The Pentagon building in Washington, D.C., is named because it is in the shape ofa regular pentagon. What is the measure of each interior angle?
The formula to find the sum of the interior angles of a polygon is given below,
\(\text{Sum of angles of polygon = (n-2)180}^0\)Number, n, of sides of a regular pentagon is 5 i.e n = 5,
To find the sum of angles in a regular pentagon, substitute for n into the formula above,
\(\text{Sum of angles of a pentagon=(5-2)180}^0=3\times180^0=540^0\)To find the measure of each angle of the pentagon, the formula is given below
\(\begin{gathered} for\text{ each interior angle=}\frac{Sum\text{ of angles}}{n} \\ \text{Where n = 5} \\ \text{For each interior angle=}\frac{540^0}{5}=108^0 \end{gathered}\)Hence, each interior angle is 108°
Find the range and standard deviation of the set of data. 12, 10, 5, 13, 20
The solution is: the range and standard deviation of the set of data is:
13 and 4.20 .
Solution
Step 1
Find the range
Range = largest value - smallest value
Range = 18-5 =13
Step 2
X = Σx /n
Where Σx = 10 +10+5+12+18 = 55
n = 5
Step 3
Substitute in and find the mean
X = 55/5 = 11
Hence the mean = 11
Step 4
Write an expression for the standard deviation
standard deviation = √|x - X|²/n
Step 5
Draw up a table to help find the standard deviation
Hence substituting yields
sd = √88/5
=4.195
The standard deviation approximately = 4.20 to the nearest hundredth.
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complete question:
Find the range and standard deviation of the set of data.10, 10, 5, 12, 18 What is the range
Pls help me out here
All of the equations that are true include the following:
B. 56 + 70 = 14(4 + 5).
C. 28 + 49 = 7(4 + 7).
What is the distributive property of multiplication?In Mathematics, the distributive property of multiplication states that when the sum of two (2) or more addends are multiplied by a particular numerical value, the same result and output would be obtained as when each addend is multiplied respectively by the same numerical value, and the products are added together.
How to determine the true equation?In order to determine the true equation, we would apply the distributive property of multiplication and then check whether or not the right-hand side is equal to the left-hand side.
By applying the distributive property of multiplication to the given mathematical expression, we have the following:
32 + 96 = 8(4 + 14)
32 + 96 = 32 + 112 (False).
56 + 70 = 14(4 + 5).
56 + 70 = 56 + 70 (True).
28 + 49 = 7(4 + 7).
28 + 49 = 28 + 49 (True).
27 + 36 = 3(9 + 13)
27 + 36 = 27 + 39 (False).
25 + 35 = 5(5 + 6)
25 + 35 = 25 + 30 (False).
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What is the solution set for 4x+ 9 <17?
A- x>2
B- x<2
C-x>4
D-x<4
Answer:
The awnser is d i think
please help I am lost,a drug is injected into a patient and the concentration of the drug in the bloodstream is monitored the drugs concentration, C(t), in milligrams per liter, after t hours is modeled by C(t) = (5t/t^2+1)the graph of this rational function obtained with a graphing utility is shown in the figurey= (5x/x^2+1)[0,10,1] by [0,3,1]a. use the graph to obtain a reasonable estimate of the drugs concentration after 3 hours.b. use the functions equation displayed in the voice balloon by the graph to determine the drugs concentration after 3 hoursc. use the functions equation to find the horizontal asymptote for the graph. describe what this means about the drugs concentration in the patient's bloodstream as Time increases.
Explanation:
a)
Looking at the graph, it is reasonable to assume that after 3 hours, the concentration should be about 1.5 miligrams per liter.
b)
\(\begin{gathered} We\text{ will subsitute t =3 into the equation:} \\ y\text{ = }\frac{5(3)}{3^2+1} \\ \text{ =1.5} \end{gathered}\)Answer: Concentration = 1.5 miligrams per liter after three hours.
c)
The function is given by a term in the numerator and a term in the denominator. The term in the denominator cannot equal 0.
\(\begin{gathered} x^2+1\ne0 \\ But,\text{ x}^2\text{ will never be negative and the function cannot y cannot go below 0.} \end{gathered}\)Answer: The horizontal asymptote is the line y = 0
A dog shelter is giving away 19 different dogs, but you have room for only 4 of them. How many different dog families could you create?
The 19 tykes given away by the Shelter, that have room for only 4 tykes per family.
The number of different canine families that could be created from the 19 tykes given away by the sanctum, we need to calculate the number of combinations. room for only 4 tykes , we need to choose 4 tykes from the aggregate of 19 tykes . The order of the tykes in the family doesn't count, as long as we choose different tykes for each family. The number of combinations can be calculated using the formula for combinations C( n, r) = n!/( r!( n- r)!) Where C( n, r) represents the number of combinations of choosing r particulars from a set of n particulars. In this case, we've n = 19( total number of tykes ) and r = 4( number of tykes per family). Plugging these values into the formula, we get C( 19, 4) = 19!/( 4!( 19- 4)!) Calculating the factorial values 19! = 19 × 18 × 17 × 16 × 15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = ! = 4 × 3 × 2 × 1 = 24 15! = 15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = Substituting these values into the formula C( 19, 4) = /( 24 ×) ≈ 91,390 The 19 tykes given away by the sanctum, considering that you have room for only 4 tykes per family.
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A poll states that Hillary Clinton will receive 43 percent of the vote. There is an 8 percent margin of error. What do you think of the poll
Step-by-step explanation:
This system of election result forecast is called a non-representative poll with a high percent margin of error. and used as an alternative to an expensive and tedious representative poll system.
Non-representative polls can be used to produce accurate electoral predictions and may frequently be done faster and cheaper than typical survey procedures.
Not just for the election forecasts, but also for public opinion on a wide variety of social, economic, and cultural topics, non-representative polling appears promising.
Match the vocabulary words with the right definitions. 1 . domain a relation where for any given input value there is only one output value 2 . input a group of two numbers written in an order (x, y) so that the first value represents a horizontal position and the second number represents a vertical position 3 . ordered pair the independent values, or x values 4 . mapping diagram a way of representing how the members of one group are related to the members of another group 5 . function a value substituted in for the variable in a function which generates another value (the output)
The Matching of the vocabulary words with the right definitions are given below respectively.
What is relation?In mathematics, a relation is a set of ordered pairs that describes a relationship between elements of two sets.
Each ordered pair consists of an input and an output, and the relation specifies how the inputs and outputs are related to each other.
Relations can be represented graphically or algebraically.
1. domain: the independent values, or x values
2. input: a group of two numbers written in an order (x, y) so that the first value represents a horizontal position and the second number represents a vertical position
3. ordered pair: a group of two numbers written in an order (x, y) so that the first value represents a horizontal position and the second number represents a vertical position
4. mapping diagram: a way of representing how the members of one group are related to the members of another group
5. function: a relation where for any given input value there is only one output value. A value substituted in for the variable in a function which generates another value (the output).
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Last year Julie deposited $1000 into an account that paid 2% interest per year and $3000 into an account that paid 7% interest per year no withdrawals were made A- what was the total interest earned after 1 year B- What was the percent interest for the total deposited
Answer:
Step-by-step explanation:
102×1000÷100=1020
107×3000÷100=3210
A . 1020+3210=4230
4000=100%
230
230×100÷4000=5.75%
A=4230
B=5.75%
Claim: all natural numbers are either even or odd. Proof: By induction. Base case:0 is even, since 0 = 2.0. Now suppose that n - 1 is either even or odd, and we must show that n is either even or odd. Case 1: If n - 1 is even, then n - 1 = 2k for some k, so n = 2k + 1, showing n must be odd. Case 2: If n - 1 is odd, thenn - 1 = 2k +1 for some k, so n = 2k + 2 = 2(k+1), showing n must be even. Is this proof correct?
• Yes • No
No. The proof is wrong.
Here we are asked to prove all Natural numbers are either even or odd.
Natural numbers start from 1 to infinity.
Hence to prove by mathematical induction, we need to take the base case to be n = 1.
here, 1 = 2X0 + 1, therefore 1 is odd
Then we need to assume that for any integer m < n, m is either even or odd.
Now n > 1
Therefore,
n -1 > 0
Hence n - 1 will be a natural number.
Hence by our earlier assumption where any number smaller than is either even or odd
n - 1 has to be either even or odd.
case 1
here n - 1 is odd
if n - 1 is odd then
n-1 + 1 is a sum of two odd numbers, hence n is even
Case 2- If n - 1 is even
then, n-1 + 1 is a sum of an even and n odd number hence n is odd
Therefore n will either be even or odd.
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There are 26 boys and 20 girls in a class.
The boys and the girls have some counters.
The mean number of counters that the boys have is 28.
The mean number of counters that the girls have is 19.
Work out the mean number of counters the 46 children have.
Computing the total number of counters in the class as 1,108, the mean number of counters that the 46 children have is 24.
What is the mean?The mean refers to the average value.
The average is the quotient of the total value divided by the number of items in the data set.
The number of boys in the class = 26
The number of girls in the class = 20
The total number of boys and girls in the class = 46
The mean number of counters that the boys have = 28
The total number of counters that the boys have = 728 (28 x 26)
The mean number of counters that the girls have =19
The total number of counters that the girls have = 380 (19 x 20)
The total number of counters that the class has = 1,108 (728 + 380)
The average or mean number of counters in the class = 24 (1,108 ÷ 46)
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Jim began a 145mile bicycle trip to build up stamina for a triathlon competition. Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 7 hours. If Jim walks at a rate of 4 miles per hour and rides at 30 miles per hour, find the amount of time he spent on the bicycle.
The amount of time he spent on bicycle is 4.5 hours.
Given Jim began a 145 mile bicycle trip.
The whole trip took 7 hours.
Jim walks at a rate of 4 miles per hour and rides at 30 miles per hour.
speed = distance / time
time = distance / speed
ride:
d = distance ridden
t = d/30 (given from the problem)
walk:
t = (145 - d)/4 (given from problem)
total trip time:
7 = d/30 + (145 - d)/4.
7 = 4d/120 + 30(145 - d)/120
7×120 = 4d + 30(145 - d)
840= 4d +4350-30d
840 ₋ 4350 = ₋30d ₊ 4d
₋3510 = ₋26d
d = 3510/26
d = 135
d=135 then from here using the formula t = d / s we can solve
t=135/30 = 4.5 hours
hence the amount of time Jim spent on the bicycle is 4.5 hours.
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what is the answer to 82.25-4.25b
Answer: Look
Step-by-step explanation:
Triangles FEG and FDH are similar. If segment DH is 28 units, what is the
measure of segment EG?
If f (7) = 22, then
f(f-1(22)) = [?]
Answer: 22
Step-by-step explanation:
\(f(f^{-1}(x))=f^{-1}(f(x))=x\)
Need answer ASAP! Please see screen shot.
Answer:
0.4 or \(\frac{2}{5}\)
Step-by-step explanation:
James spun the arrow 30 times which means 30 is the total. In other words, it's your denominator (\(\frac{x}{30}\)). It landed on the blue section 12 times which means 12 is the part of the whole. In other words, it's your numerator (\(\frac{12}{y}\)). Plug in the entire fraction and you get \(\frac{12}{30}\). Divide 12 by 30 and you get 0.4 or if you divide both the numerator & denominator by 6, you get \(\frac{2}{5}\). Either one works, depending on what your question asks for.
What is the value of x?
URGENT
Answer:
14
Step-by-step explanation:
angle 90° is opposite the side x. angle 45° is opposite side 7√2.
x/sin 90 = (7√2)/sin 45
multiply both sides by sin 90 (sin 90 is = 1).
x = (7√2)/sin 45
= 14
a recipe for bread requires 2 2/3 cups of white flour and 1 1/2 cups of whole wheat flour. The recipe yields 3 loaves of bread. how many cups of flour are in each loaf of bread? show your work or explain you answer.
In the given case, each loaf of bread contains 25/18 cups of flour.
To find how many cups of flour are in each loaf of bread, we need to divide the total amount of flour by the number of loaves.
First, let's convert the mixed numbers to improper fractions:
\(2 2/3 cups = 8/3 cups\)
\(1 1/2 cups = 3/2 cups\)
Next, we can add the two fractions to find the total amount of flour:
8/3 cups + 3/2 cups = (16/6 + 9/6) cups = 25/6 cups
So, the recipe requires 25/6 cups of flour to make 3 loaves of bread.
To find the amount of flour in each loaf, we divide 25/6 cups by 3:
(25/6 cups) / 3 = 25/18 cups
Therefore, each loaf of bread contains 25/18 cups of flour.
Alternatively, we could simplify the mixed numbers at the beginning:
2 2/3 cups = 8/3 cups
1 1/2 cups = 6/4 cups
Then we can add the fractions:
8/3 cups + 6/4 cups = (32/12 + 18/12) cups = 50/12 cups
Finally, we can divide by 3 to find the amount of flour in each loaf:
(50/12 cups) / 3 = 25/18 cups
So the answer is the same.
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If the weather in City A decreased constantly through the night from
5:00 PM to 9:00 PM, what is the rate of decrease of the weather in
degrees per hour if the temperature dropped from 20 degrees to 12
degrees?
A) 2
B) -2
C) 8
D) -8
E) 1
The rate of decrease of the weather in degrees per hour is 2 degrees.
EquationsThe time elapsed is from 5:00 PM to 9:00 PM, which is 4 hours.
The temperature dropped from 20 degrees to 12 degrees, which is a change of -8 degrees.
Therefore, the rate of decrease of the weather in degrees per hour is:
-8 degrees / 4 hours = -2 degrees per hour
What is rate of change of temperature?A measurement of how quickly the temperature changes over time is the rate of change. Depending on the time frame being considered, it is typically represented in units of degrees per hour, degrees per minute, or degrees per second. Depending on whether the temperature is rising or falling, the rate of temperature change can be either positive or negative. The temperature rises when the rate of change is positive; it falls when the rate of change is negative.
Many variables, including the amount of sunlight, wind speed, humidity, and the time of day, have an impact on the pace of temperature change. Generally speaking, temperature varies more quickly during the day than it does at night, and it varies more quickly in places with less foliage and more exposed ground. Human activity, such as the emission of greenhouse gases into the atmosphere, which can eventually lead to an increase in global temperatures, can also have an impact on the pace of change of temperature.
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What is the value of r
Step-by-step explanation:
Vertical angles are equal r = 70 degrees
WEEK 2 Direction: Answer the following problems. 1. Jun wanted to know how much ice cream he got in on scoop. The radius of a scoop is 2 inches. Find the volum Use 3.14 for pi. (SHOW YOUR SOLUTION) a) What is asked in the problem? b) What are the given facts? c) What is the formula to be used? d) Number Sentence e) Final answer. (show your solution pls)
We are given the radius of the scoop and asked to find the volume of ice cream in one scoop. By using the formula for the volume of a sphere and substituting the given radius, we can calculate the volume. The final answer is approximately 33.49 cubic inches.
a) The problem asks for the volume of ice cream in one scoop.
b) The given fact is that the radius of the scoop is 2 inches.
c) The formula to be used is the volume of a sphere, which is given by V = (4/3)πr³, where V is the volume and r is the radius.
d) Number Sentence:
- Given: Radius (r) = 2 inches
- Formula: V = (4/3)πr³
- Substituting the value: V = (4/3)π(2)³
- Simplifying: V = (4/3)π(8)
- Evaluating: V = (4/3)(3.14)(8)
- Multiplying: V = 33.49333333 (approx.)
e) Final answer: The volume of ice cream in one scoop is approximately 33.49 cubic inches.
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area
help hellllppppp
Answer:
Area = 14¹/16 yd² or 14.0625 yd²
Step-by-step explanation:
2. The figure given is a square having equal sides of 3¾ yd each.
Formula for area of the square = a²
Where,
a = 3¾ yd
Plug in the value into the equation:
Area = (3¾)²
Change to improper fraction
Area = (15/4)²
Area = 225/16
Area = 14¹/16 yd² or 14.0625 yd²
[~S & (R V S) ] ≡ (Q ⊃ S) where A = T, S = F, R = F, Q = T
[~S & (R V S)] ≡ (Q ⊃ S) is true when A = T, S = F, R = F, and Q = T by substituting the propositional variables.
What is truth table?A truth table is a table used to determine the truth values of a compound proposition, which is a logical statement made up of simpler propositions using logical operators such as "and" (represented by "&"), "or" (represented by "V"), "not" (represented by "~"), conditional (represented by "⊃"), and biconditional (represented by "≡").
According to question:Let's substitute the given truth values for the propositional variables in the given statement:
[~F & (F V F)] ≡ (T ⊃ F)
Using the truth table for conjunction (represented by "&") and disjunction (represented by "V"), we can simplify the left-hand side of the equivalence:
[T & F] ≡ (T ⊃ F)
Using the truth table for conditional (represented by "⊃"), we can simplify the right-hand side of the equivalence:
F ≡ F
Since both sides of the equivalence have the same truth value, the statement is true.
Therefore, [~S & (R V S)] ≡ (Q ⊃ S) is true when A = T, S = F, R = F, and Q = T.
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What is the difference between the sum of the measures of the interior angles in an octagon and the sum of the measures of the interior angles in a
hexagon?
540 degrees
180 degrees
360 degrees
720 degrees
PLS ANSWER IF YOU KNOW!!!