Part 1
\(f(x)=x^4 - 5x^2-36 \\ \\ f(x)=(x^2-9)(x^2+4) \\ \\ f(x)=(x-3)(x+3)(x^2+4) \\ \\ \boxed{f(x)=(x-3)(x+3)(x-2i)(x+2i)}\)
Part 2
\(x=-3, 3, 2i, -2i\)
2×(c power of 2-5)for c =4
9
Which expression is equivalent to 181 + |-7|?
-15
-1
1
15
Answer:
15
Step-by-step explanation:
|-7|=7
|8|=8
7+8=15
What is the value of x? Round to the nearest thousandth.
Applying the tangent ratio, the value of x in the image, rounded to the nearest thousandth is: 15.824.
How to Find the Value of x Using the Tangent Ratio?The tangent ratio, commonly referred to as "tangent," is a trigonometric function that relates the ratio of the length of the side opposite an angle to the length of the side adjacent to that angle in a right triangle. It is expressed as:
tan (∅) = opposite/adjacent
We have the following:
Reference angle (∅) = 53 degrees
Length of opposite side = 21
Length of adjacent side = x
Plug in the values:
tan 53 = 21/x
x * tan 53 = 21
x = 21 / tan 53
x = 15.824
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Lucas received $35 from his friend for his birthday. He wants to purchase a new keyboard that is $19 and wants to spend the rest on a monthly subscription for computer games. The monthly subscription costs $5 per month. What is the max number of months that Lucas can pay for?
Answer:
3 months
Step-by-step explanation:
35
- 19
= 16 left after keyboard
- 15 Three months of subscription costs
What is the slope in the given line?
Answer:
\(-\frac{2}{3}\)
Step-by-step explanation:
The slope/gradient of a line is defined by this formula:
\(\frac{y_{1}-y_{0} }{x_{1}-x_{0} }\)
Where you pick two coordinates, find the change in the \(y\) values, and divide it by the change in the \(x\) values.
Two coordinates that this line passes through are (3, -2) and (-3, 2).
You can take the second \(y\)-value (2) from the first \(y\)-value (-2) or vice versa, so long as you do it in the same order the \(x\) values.
For this example, I will take the first \(y\)-value (-2) from the second \(y\)-value (2), and take the first \(x\)-value (3) from the second \(x\)-value (-3).
The gradient/slope is defined by \(m\) in the following:
\(m=\frac{2--2}{-3-3}=\frac{4}{-6}=-\frac{4}{6}=-\frac{2}{3}\)
The graph represents the piecewise function: f (x) ={ , if -3
The domain and the range of the function are
Domain = (-∝, ∝)Range = (0, ∝)How to determine the domain and range of the functionFrom the question, we have the following parameters that can be used in our computation:
The graph
The graph is a piecewise function
When combined gives an absolute function
The rule of a function is that
The domain is the set of all real numbers
This means that the input value can take all real values
However, the range is greater than the constant term
In this case, it is 0
So, the range is y > 0
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Question
The graph represents the piecewise function:
f(x) =
What is the domain and range of the function
John spent $75 on a shopping trip for new clothes last week. He had expected to spend $100 on clothes. A 6-column table with 1 row. Column 1 is labeled Approximate Value with entry 100 dollars. Column 2 is labeled Exact Value with entry 75 dollars. Column 3 is labeled Error with entry 25 dollars. Column 4 is labeled Absolute Error with entry blank. Column 5 is labeled Ratio with entry blank. Column 6 is labeled Percent Error with entry blank. How much was the absolute error in his estimate? $ John spent $75 on a shopping trip for new clothes last week. He had expected to spend $100 on clothes. A 6-column table with 1 row. Column 1 is labeled Approximate Value with entry 100 dollars. Column 2 is labeled Exact Value with entry 75 dollars. Column 3 is labeled Error with entry 25 dollars. Column 4 is labeled Absolute Error with entry blank. Column 5 is labeled Ratio with entry blank. Column 6 is labeled Percent Error with entry blank. How much was the absolute error in his estimate? $
Answer:200
Step-by-step explanation:
All you have to do is add.
Answer:
25
Step-by-step explanation:
because its simple math
anyways have an nice day
A national grocery store chain designed a study to determine whether its customers would be interested in home delivery. The
chain randomly surveyed 1,000 customers from around the country. It concluded from the study that 80% of all customers who
hopped in the chain's stores were interested in the service. What is the sample in the study?
The group of people who participated in the study's sample survey was chosen at random to participate in it by the national grocery store chain. In this instance, the sample comprises the 1,000 customers from throughout the nation that participated in the survey. They are a segment of the total consumer base that frequents the chain's retail outlets.
The chain randomly surveyed 1,000 customers from around the country. It concluded from the study that 80% of all customers who hopped into the chain's stores were interested in the service. The nationwide grocery store chain randomly selected the participants in the study's sample survey from the general public.
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What is 3x6=4(2-3x)-8x
Answer:
x=- 31/2 or -15 1/2 or -15.5
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
Find the mean, median, mode 1. 40, 38,29,34,37, 22, 15, 38 2. 26, 32, 12, 18, 11, 14, 21, 12,27 3. 3,3,4,7,5,7,6,7,8,8,8. 9,8, 10, 12, 9, 15, 15
NEED THE ANSWER ASAP
NONSENSE, REPORT
i will (brainliest) if it's correct!!!
Mean: 34.125, Median: 31.5, Mode: 38
Mean: 19.222, Median: 18, No mode
Mean: 8.611, Median: 8, Mode: 8
Let's find the mean, median, and mode for each set of numbers:
Set: 40, 38, 29, 34, 37, 22, 15, 38
Mean: To find the mean, we sum up all the numbers and divide by the total count:
Mean = (40 + 38 + 29 + 34 + 37 + 22 + 15 + 38) / 8 = 273 / 8 = 34.125
Median: To find the median, we arrange the numbers in ascending order and find the middle value:
Arranged set: 15, 22, 29, 34, 37, 38, 38, 40
Median = (29 + 34) / 2 = 63 / 2 = 31.5
Mode: The mode is the number(s) that appear(s) most frequently in the set:
Mode = 38 (appears twice)
Set: 26, 32, 12, 18, 11, 14, 21, 12, 27
Mean: Mean = (26 + 32 + 12 + 18 + 11 + 14 + 21 + 12 + 27) / 9 = 173 / 9 ≈ 19.222
Median: Arranged set: 11, 12, 12, 14, 18, 21, 26, 27, 32
Median = 18
Mode: No mode (all numbers appear only once)
Set: 3, 3, 4, 7, 5, 7, 6, 7, 8, 8, 8, 9, 8, 10, 12, 9, 15, 15
Mean: Mean = (3 + 3 + 4 + 7 + 5 + 7 + 6 + 7 + 8 + 8 + 8 + 9 + 8 + 10 + 12 + 9 + 15 + 15) / 18 ≈ 8.611
Median: Arranged set: 3, 3, 4, 5, 6, 7, 7, 7, 8, 8, 8, 8, 9, 9, 10, 12, 15, 15
Median = 8
Mode: Mode = 8 (appears 4 times)
Mean: 34.125, Median: 31.5, Mode: 38
Mean: 19.222, Median: 18, No mode
Mean: 8.611, Median: 8, Mode: 8
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Does the expression x^3-1 divided by x^2 -1 simplify to x?
No, the expression (x^3 - 1) / (x^2 - 1) does not simplify to x.
To simplify the expression, let's first factorize both the numerator and denominator.
The numerator can be factorized using the difference of cubes formula: a^3 - b^3 = (a - b)(a^2 + ab + b^2). So, we have (x^3 - 1) = (x - 1)(x^2 + x + 1).
The denominator is a difference of squares: a^2 - b^2 = (a - b)(a + b). Therefore, (x^2 - 1) = (x - 1)(x + 1).
Now, we can simplify the expression by canceling out the common factors in the numerator and denominator:
[(x - 1)(x^2 + x + 1)] / [(x - 1)(x + 1)]
The (x - 1) terms cancel out, leaving us with:
x^2 + x + 1 / (x + 1)
So, the simplified form of the expression is (x^2 + x + 1) / (x + 1), which is not equal to x.
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A storage trunk is shaped like a rectangular prism. The trunk's volume is 18 cubic feet. The length of the trunk is 6 feet, and the width of the trunk is 2 feet. What is the height of this trunk
Answer:
1.5
Step-by-step explanation:
The height is 1.5 because to find the volume of a rectangular prism, you do length x width x height. Without height, you multiply length x width (6x2) and divide that by the volume (18 divided by 12 = 1.5)
find the inverse of each function
Answer:
c
Step-by-step explanation:
assume base 10
-logy = x
\( \frac{1}{ log(y) } = x\)
log base x y = 5 turns into the format x^ 5 = y
implement that to get c
The amourt of time tatil an acciden. occurs at an industrial facility follows an exposential distrbution with mean 40 days. a) What is the probability that the next accident occurs betw_en 50 and 100 days?b) Wat is the prooability that the time until an accident occur. exceeds the mear. time by more than 2 stai.dard deviations? c) Sunpose it has been at least 30 days with no accidents. What is the probability that it will be at least 80 days until an accident occurs? d) What is the value of the median time until an accident rccura?
a) Probability that the next accident occurs between 50 and 100 days = 0.2044198
b) Probability that the time until an accident occur exceeds the mean time by more than 2 standard deviations = 0.04978707
c) The probability that it will be at least 80 days until an accident occurs = 0.2865048
d) the value of the median time until an accident occurs = 27.7258
Median time
The median is the mean between the data point of rank. n ÷ 2 = 8 ÷ 2 = 4. and the data point of rank. (n ÷ 2) + 1 = (8 ÷ 2) +1 = 5. Therefore, the median time is (25.2 + 25.6) ÷ 2 = 25.4 secondsa) Let T be the amount of time until an industrial facility accident occurs.
Daily rate lambda = 1/Mean = 1/40
Exp(lambda = 1/40), T
If the distribution is exponential,
P(T t) = 1 - exp (-lambdat) = 1 - exp(-t/40)
P(50 T 100) is the probability that the next accident will occur between 50 and 100 days.
= P(T < 100) - P(T < 50)
= (1 - exp(-100/40)) - (1 - exp(-50/40))
= exp(-1.25) (-1.25) - exp(-2.5) (-2.5)
= 0.2865048 - 0.082085
= 0.2044198
b) Standard deviation = Mean = 40 in the case of an exponential distribution.
The probability of the next accident occurring exceeds the mean time by two standard deviations.
= P(T > 40 + 2 * 40)
= P(T > 120)
= exp(-120/40)
= exp (-3)
= 0.04978707
c) Given that there is no accident until 30 days, the likelihood is that it will be at least 80 days before an accident occurs.
= P(T > 80 | T > 30)
= P(T>80 and T>30) / P(T>30)
= P(T > 80) / P(T > 30)
= p(- 80/40) / exp(- 30/40)
= exp(-50/40) = (-1.25)
= 0.2865048
d) If the distribution is exponential,
P(T t) = 1 - exp(-lambdat) = 1 - exp(- t/40).
P(T t) = 0.5 for the median value Tm.
1 - exp(-Tm/40) = 0.5
exp(-Tm/40) = 0.5
-Tm/40 = log (0.5)
-Tm/40 = -0.6931472
Tm = 40 * 0.6931472
= 27.72589 days
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The rectangular prism has a volume of 80 cubic centimeters. If the length is 5 centimeters and the width is 8 centimeters, what is the height? (Picture below)
(MAKE SURE TO CHOOSE ONE)
a. 3200 cm
b. 4 cm
c. 20 cm
d. 2 cm
e. 40 cm
f. Not enough information is given
Answer:
d. 2 cm
Step-by-step explanation:
HELP ASAP PLEASE!!!!!!!!
Answer:
1
Step-by-step explanation:
1 : 1 :sqrt(2)
The legs are in the ratio of 1 to 1
tan 45 = opp side / adj side
tan 45 = 1/1
tan 45 =1
Answer:
Step-by-step explanation:
What distance will a truck travel in 3 hours at an average speed of 50 mpg (miles per hour)? using velocity
Question 2 of 39
Look at this series: 56, 54, 50, 38, 34, ... What number should come next?
A) 23
B) 18
C) 20
D) 32
E) 26
Answer:
D) 32
Step-by-step explanation:
Given;
series: 56, 54, 50, 38, 34, ....
find the difference between successive numbers;
56 54 50 38 34 x
2 4 12 4 2
The highest difference between the numbers is 12, after which it decreases to 4 and finally back 2.
The next number "x" is calculated as;
34 - 2 = x
34 - 2 = x
32 = x
Therefore, the next number should be 32.
The next number that should come next in the series is 32.
Sequence is an arrangement of two or more things in a successive order. Series is the cumulative sum of a given sequence of terms.
Given the numbers in the series: 56, 54, 50, 38, 34, . . ..
The difference is 2, 4, 12, 4, 2
The highest difference between the numbers is 12, after which it decreases to 4 and finally back 2. Hence:
The next number = 34 - 2 = 32
The next number that should come next in the series is 32.
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When Kenny bought his new guinea pig, the pet store told him it would weigh about 2
pounds when fully grown. Now fully grown, the guinea pig weighs 1.8 pounds. What is the
percent error for the pet store's prediction?
Answer:
the correct answer is 11.1% _your welcome ..kharis
Step-by-step explanation:
the correct answer is 11.1% _your welcome ..kharis
To find the percent error, start by listing the key information from the problem.
The pet store told Kenny the guinea pig would weigh 2 pounds when fully grown.
It actually weighs 1.8 pounds fully grown.
First, find the amount of error. It is the difference between 2 and 1.8, which is 0.2.
Now, use the formula to find the percent error.
percent error
=
amount of error
correct amount
=
0.2
1.8
=
0.1111…
You can rewrite this as a percent rounded to the tenths place, 11.1%
.
So, the percent error for the pet store's prediction is about 11.1%
.
Renata is purchasing a condominium for $125,000. She wants to put down a down payment of 20%. Select all the true statements. The proportion that represents the down payment is 20100=125,000 20 100 = 125 , 000 x . The down payment is $25,000. The proportion that represents the down payment is 20100=125,000 20 100 = x 125 , 000 . The down payment is $50,000. The down payment is 15 1 5 of the cost of the house.
The correct options are -
The proportion that represents the down payment is : 20/100 x 125000.The down payment is $25,000What is down payment?When something is bought on credit, an initial payment is made in the form of a down payment.
Given is that Renata is purchasing a condominium for $125,000. She wants to put down a down payment of 20%.
We can calculate the amount she is putting in down payment as -
{x} = 20% of 125000
{x} = 20/100 x 125000
{x} = 20 x 1250
{x} = 25000
Therefore, the correct options are -
The proportion that represents the down payment is : 20/100 x 125000.The down payment is $25,000To solve more questions on functions & equations, visit the link-
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Simplify 8h + 9h -2h + 7 + 9 when h=4
Answer:
60h +16 is the answer. If you wanna simpifiy it and the rule still applies then 60 times 4 =240 plus 16 which is 256. 256 is the Simplest anwser.
Step-by-step explanation:
An experiment was conducted by having a group of children solve a puzzle. It was found that of those who had solved the puzzle on a given trial, 40% could solve it on the next trial. And of those who couldn't solve the puzzle on a given trial, 10% could solve it on the next trail. At the present time, 80% of the children solved the puzzle on the current trial, but 20% did not. Assume that this process can be modeled as a Markov process.
Write the transition matrix. Label the columns and rows, using S for "able to solve" and NS for "not able to solve.
Write the initial distribution matrix.
What percent of the children will be able to solve the puzzle on the next trial (trial 1)?
What percent of the children will be able to solve the puzzle on trial 2?
After many trials, what percent of the children will fail to solve the puzzle on each trial?
Answer:
I hope this helps!
Step-by-step explanation:
Please mark brainiest
5. Theresa's sugar cookie
recipe uses 1 1/3 cup
sugar. How much sugar
would Theresa need to
make 2 4/5 batches of
cookies? PLEASE HELP ITS DUE TOMORROW IM FREAKING OUT
Answer:
You will need 3 \(\frac{11}{15}\) cups of sugar.
Step-by-step explanation:
1 1/3 x 2 4/5
another name for 1 is 3/3
3/3 + 1/3 = 4/3
Another name for 1 is 5/5
5/5 + 5/5 + 4/5 = 14/5
\(\frac{4}{3 }\) x \(\frac{14}{5}\) = \(\frac{56}{15}\)
I can break 56 into 15 + 15 + 15 + 11
\(\frac{15}{15}\) + \(\frac{15}{15}\) + \(\frac{15}{15}\) + \(\frac{11}{15}\) another name for \(\frac{15}{15}\) is 1
1 + 1 + 1 + \(\frac{11}{15}\)
3 \(\frac{11}{15}\)
Let S- (1,2,3,4,5,6) (a) How many subsets are there total? (b) How many subsets contain the elements 2,3 and 5? o) How many subsets contain at least one odd number? (d) How many subsets contain exactly one even number? (e) How many subsets are there of cardinality 4? (f) How many subsets of cardinality 4 contain the elements 2,3, and 5? (g) How many subsets of cardinality 4 contain at least one odd number? (h) How many subsets of cardinality 4 contain exactly one even number?
a) There are 2^6 = 64 subsets total.
b) There are 2^3 = 8 subsets total
c) There are 2^5 = 32 subsets total
d) There are 32^4 = 48 subsets total
e) There are (6 choose 4) = 15 subsets total
f) There are 32 = 6 subsets total
g) There are is (6 choose 4) - (3 choose 4) = 15 - 0 = 15 subsets total
h) There are (3 choose 1) * (3 choose 3) = 3 subsets total
a) There are 2^6 = 64 subsets total.
b) Since we need to include elements 2, 3, and 5 in a subset, we have 3 elements fixed, and we need to choose 1, 2, or 3 elements from the remaining 3 elements (1, 4, and 6). Therefore, there are 2^3 = 8 subsets that contain the elements 2, 3, and 5.
c) There are 2^5 = 32 subsets that contain at least one odd number. This can be seen by noticing that if a subset does not contain any odd numbers, then it must be {2,4,6}, which is not a valid subset since it does not satisfy the condition that it be a subset of S.
d) There are 32^4 = 48 subsets that contain exactly one even number. To see why, notice that there are 3 choices for which even number to include (2, 4, or 6), and then there are 2^4 = 16 choices for which of the remaining 4 odd numbers to include in the subset.
e) There are (6 choose 4) = 15 subsets of cardinality 4. This is the number of ways to choose 4 elements from a set of 6.
f) Since we need to include elements 2, 3, and 5 in a subset of cardinality 4, we have 3 elements fixed, and we need to choose 1 element from the remaining 3 even elements, and 1 element from the remaining 2 odd elements. Therefore, there are 32 = 6 subsets of cardinality 4 that contain the elements 2, 3, and 5.
g) The number of subsets of cardinality 4 that contain at least one odd number is equal to the total number of subsets of cardinality 4 minus the number of subsets of cardinality 4 that contain only even numbers. This is (6 choose 4) - (3 choose 4) = 15 - 0 = 15.
h) The number of subsets of cardinality 4 that contain exactly one even number is equal to the number of ways to choose 1 even number out of 3, and then the number of ways to choose 3 odd numbers out of 3. This is (3 choose 1) * (3 choose 3) = 3.
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Someone please help me out i don´t understand this question
ill give you 21 points
Answer:
0.67
Step-by-step explanation:
Formula: k = y/x
k = 2/3
k = 0.66666666666
k = 4/6
k= 0.66666666666
k = 6/9
k = 0.66666666666
k = 8/12
Round 0.67
Hence, answer = 0.67
[RevyBreeze]
Answer:
2/3
Step-by-step explanation:
Direct proportions are given by:
y=kx where k is the constant
2=k×3
2/3=k
4=k×6
4/6=k
2/3 = k
6=k×9
6/9 =k
2/3 = k
8 = k×12
8/12 = k
2/3 = k
There will be 2,375 campers at a state summer camp this year. If each cabin has 2 counselors for every 50 campers, what prediction can you make about the number of counselors who will be at the state camp?
There will be about 1,163 counselors there.
There will be about 1,188 counselors there.
There will be about 95 counselors there.
There will be about 48 counselors there.
There will be about 95 counselors there with the help of expression 2375/50.
What are expressions exactly?
In mathematics, expressions are mathematical claims that consist of at least two sentences that contain numbers, variables, or both, and are linked by an operator in between. Mathematical operations include addition, subtraction, multiplication, and division. For instance, x + y is an equation in which the words x and y are separated by an addition operator. In mathematics, there are two types of expressions: numerical expressions, which include only numbers, and algebraic expressions, which contain both numbers and variables.
e.g. A number is 6 more than half of another number, x. This proposition can be stated mathematically as x/2 + 6. Mathematical expressions are used to answer complex problems.
Now,
Given that Total campers = 2375
and for each cabin there are 2 counselors and 50 campers
then no. of cabins = 2375/50
No. of counselors= 2*no. of cabins
=2*2375/50
=95
Hence,
There will be about 95 counselors there with the help of expression 2375/50.
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The area of a square is 256 square cm. What is the length of its side?
These shapes are similar.
Find X.
5
5
30
24
30
Answer: 4
Step-by-step explanation:
Each side of a square is increased by 10%
By what percentage is the area increased?
Answer:
21%
Step-by-step explanation:
If it is correct pls mark me as brainliest and learn we
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
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