Answers
Answer:
f(-3) = 7
Step-by-step explanation:
For these types of questions, you need to replace the x's in the equation with whatever is inside f(x)
So if its f(5) you would sub 5 into where all the x's are
Related Questions
Help pls my whole grade depends on this I’ll give you brainliest
Answers
Answer: y=3/2x+7.5
explanation: i graphed it
WILL GIVE BRAINLIEST
A hospital did a 10 year study on patients who use his services. 1000 patients were randomly selected and followed over a period of 10 years to determine the average number of visits per year. By the end of the 10 year. Some of the patients had left the area. Identify the problem with the poll.
A) A nonresponse occurred
B) The relationship between two variables implies one causes the other
C) Some of the sample data are missing
D) The conclusion is based on a voluntary response sample
Answers
Answer:
b so it doesnt tell you how many people come to the hospital a day
Step-by-step explanation:
a--->b--->=c
Answer:
A) A nonresponse occurred
Step-by-step explanation:
We understand that in the span of 10 years, 1000 patients were monitored, and among those were some individuals who had moved. These certain individuals are not responsive anymore, and can not be a source of data, and the poll would be incorrect if the hospital decided to switch out the patients in the midst of the decade. Therefore we are to assume a nonresponse occurred. (To define nonresponse, it is simply a failure to respond, which is indeed what is defined for those who had moved.)
It is not B for the two variables have no correlation, it is not C for all patients were at first patrons and the problem did not explicitly state there was missing info, and D is incorrect for it said the sample group was selected at random. Therefore, with process of elimination, A would still be correct.
3. Calculate the following: a) 5-9 d) 8-8 g) -1 + 12 j) -12 + 12 m) -2 +4+3 p) -4-3+2-1 4. Calculate the following: a) 3+ -2 d) −5+-2 al 2−−3+-4 mo b) 2 + 7 e) −2+5 h)-8-22 k) 2+4-3 n) -2+4-3 193 b)-4--56/t e) 8-+3 h) | +-2--3
Answers
The arithmetic expressions are solved and answered below -
5 - 9 = - 4
8 - 8 = 0
- 1 + 12 = 11
- 12 + 12 = 0
- 2 + 4 + 3 = 5
- 4 + 3 + 2 - 1 = - 2 + 2 = 0
What are algebraic expressions?In mathematics, an expression or mathematical expression is a combination of terms both variables and constants. For example -
2x + 4y + 5z
4y + 2x
Given are the expressions as given in the questions.
{a} -
5 - 9 = - 4
{b} -
8 - 8 = 0
{c} -
- 1 + 12 = 11
{d} -
- 12 + 12 = 0
{e} -
- 2 + 4 + 3
5
{f} -
- 4 + 3 + 2 - 1 = - 2 + 2 = 0
Therefore, the arithmetic expressions are solved and answered below -
5 - 9 = - 4
8 - 8 = 0
- 1 + 12 = 11
- 12 + 12 = 0
- 2 + 4 + 3 = 5
- 4 + 3 + 2 - 1 = - 2 + 2 = 0
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{Complete question -
Calculate the following:
a) 5-9
b) 8-8
c) -1 + 12
d) -12 + 12
e) -2 +4+3
f) -4-3+2-1}
Given the following sequence and an-1 = 12, what is an?
2, 7, 12, 17,...
Answers
Answer:
12
Step-by-step explanation:
\(a_{n-1}=12\\\\
Plug\: n = n + 1\\\\
a_{n+1-1}=12\\\\
\huge \red {\boxed {a_{n}=12}} \\\\\)
the national fire incident reporting service stated that, among residential fires, 73% are in family homes, 20% are in apartments, and 7% are in other types of dwellings. a) if four residential fires are independently reported on a single day, what is the probability that two are in family homes, one is in an apartment, and one is in another type of dwelling? b) if six residential fires are independently reported on a single day, what is the probability that three or more were reported from apartments? c) the typical cost of responding to a fire emergency for the local fire department depends on the type of dwelling. for family homes, the cost ascends to 800 usd, whereas for apartments and other types of dwellings the costs are 500 usd and 1,000 usd. the monthly budget for the fire department emergency response team is 20,000 usd. what is, in expectance, the maximum number of fires to which the fire department will be able to provide assistance without running out of budget?
Answers
A. The probability that two of the four fires are in family homes, one is in an apartment, and one is in another type of dwelling is: 0.0083
B) The probability that three or more of the six fires were reported from apartments is: 0.6723
C The probability that no more than two fires were reported from apartments is: 0.0032
How to calculate the probabilityA) The probability that two of the four fires are in family homes, one is in an apartment, and one is in another type of dwelling is:
(0.73)² (0.20) (0.07)
= 0.0083
B) The probability that three or more of the six fires were reported from apartments is:
1 - (0.8) × 0.8 × 0.8⁴
= 0.6723
C. The probability that no more than two fires were reported from apartments is:
(0.8)² (0.2)⁴
= 0.0032
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at a certain clothing store, the clothes are displayed on racks. the clothes on each rack have similar prices, but the prices among the racks are very different. to estimate the typical price of a single piece of clothing, a consumer will randomly select four pieces of clothing from each rack. what type of sample is the consumer selecting? responses a census a census a cluster sample a cluster sample a simple random sample a simple random sample
Answers
The clothing in the store is separated into strata, each of which is a rack of items with comparable prices. An illustration of the use of a stratified random sample is the mean price calculated using the randomly chosen articles of clothing from the strata.
Describe a random sample.In the random sampling method of sampling, each sample has an equal chance of being chosen. In order to fairly represent the entire population, a sample is chosen at random. From a pool of 250 employees, 25 names could be chosen at random to represent a simple random sample. The sample in this case is random, and the population in this case is the employees since each has an equal chance of being chosen.
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Select all of the following that are ordered pairs of the given function.
f(x) = 3 - 2x
(-2,-1)
(-1,5)
(0, 3)
(1, 0)
(2,-1)
Answers
Answer:
(-1, 5), (2, -1), (0, 3)
m =У2 -У1X2-X1Find the slope of the line that passesthrough these two points.(3.5(5.1)m = [?]Enter
Answers
apply the slope formula:
\(m=\frac{y2-y1}{x2-x1}\)Where;:
(x1,y1) = (3,5)
(x2,y2) = (5,1)
Replacing:
\(m=\frac{1-5}{5-3}=\frac{-4}{2}=-2\)Slope = m = -2
brainliest? plz help last question
Answers
Consider functions h and k. 0 1 2 3 1 4 10 28 What is the value of ? A. 28 B. 1 C. 0 D. 4
Answers
A man bought 2 pounds of coffee and 1 pound of butter for a total of $11.25. A month later, the prices had not changed (this makes it a fictitious problem), and he bought 3 pounds of coffee and 2 pounds of butter for $18.50. Find the price per pound of both the coffee and the butter.
Answers
Answer: See explanation
Step-by-step explanation:
Let the price per pound of coffee be c
Let the price ce per pound of butter be b.
We can form an equation based on the information given and this will be:
2c + b = 11.25 ....... i
3c + 2b = 18.50 ....... ii
From equation i, b = 11.25 - 2c ..... iii
Put the value of b into equation ii.
3c + 2b = 18.50
3c + 2(11.25 - 2c) = 18.50
3c + 22.50 - 4c = 18.50
-c = 18.50 - 22.50
c = 4.00
A pound of coffee cost $4.00
Since b = 11.25 - 2c .
b = 11.25 - 2(4.00)
b = 11.25 - 8.00
b = 3.25
A pound of butter costs $3.25
Please help me with my class work
Answers
Answer:
my personal guess is 45⁵
Step-by-step explanation:
9 times 5 is 45 and 2 plus 3 is 5
I need help :)))))))))
Answers
Answer:
happy/ opens up
Step-by-step explanation:
since it is a positive equation it will open up
what is the answer to (b+3f)a=g
Answers
Answer:
f= -g/3
Step-by-step explanation:
mike pays $2.79 for coffee every weekday morning on his way to work. on saturdays, he goes to visit his mother and takes her out to her favorite coffee shop where he spends $7.83 for two coffees. how much does he spend per week for coffee? $21.78 $26.91 $13.95 $29.61
Answers
Answer:
$21.78
Step-by-step explanation:
2.79 X 5 = 13.95
13.95 + 7.83 = 21.78
Find the sum. Write the answer in simplest form. 1/4 + 1/5
Answers
Answer:
9/20
Step-by-step explanation:
Step 1:
1/4 + 1/5
Step 2:
5/20 + 4/20
Answer:
9/20
Hope This Helps :)
Answer
9/20
Step by Step
I got this by turning the 1/4 into a 5/20 and then turned the 1/5 into a 4/20 and then added from there
5/20+4/20=9/20
You have to turn the fractions denominator into the same number by finding the lowest common denominator.
Triangle XYZ has coordinates X(2, 4), Y(−3, 4), and Z(−3, 1). If the triangle is translated using the rule (x, y) → (x − 2, y + 1), what are the coordinates of Y'?
Y'(–5, 5)
Y'(0, 5)
Y'(–5, 2)
Y'(–1, 3)
Answers
Answer:
Y'(-5, 5)
Step-by-step explanation:
To find the coordinates of Y' after the translation, we apply the given rule to the coordinates of point Y(-3, 4).
Using the translation rule (x, y) → (x - 2, y + 1), we can substitute the coordinates of Y(-3, 4) into the rule:
x' = x - 2 = -3 - 2 = -5
y' = y + 1 = 4 + 1 = 5
Therefore, the coordinates of Y' are (-5, 5).
Which quadratic function in vertex form can be represented by the graph that has a vertex at negative 4. . 5. and passes through the point negative 7. . 11. ?
Answers
Answer:
the annswer is 4155 because its in formal information
Step-by-step explanation:
the annswer is 4155 because its in formal information
The sum of a number and seven more than the number is 43. What is the number?
Answers
Answer:
18 is the number good luck
Step-by-step explanation:
18+25=43
Answer:
18,25
Step-by-step explanation:
the body mass of a man is xkg.thebody mass of his two children are five-sixth and four_fifths of their father5 x over 6 + 4 x over 5 5 x over 6 + 4 x over 5
Answers
56/120
Step-by-step explanation:
The body masses of the two children in terms of their father's body mass, x, are:
First child's body mass = 5x/6 kg
Second child's body mass = 4x/5 kg
To express the body mass of the man's two children in terms of their father's body mass, we can use the given ratios.
Let the body mass of the man be x kg.
The first child's body mass is five-sixths of their father's body mass:
Body mass of the first child = (5/6) * x
= 5x/6 kg.
The second child's body mass is four-fifths of their father's body mass:
Body mass of the second child = (4/5) * x
= 4x/5 kg.
Therefore, the body masses of the two children in terms of their father's body mass, x, are:
First child's body mass = 5x/6 kg
Second child's body mass = 4x/5 kg
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Last question need to be answered in less than 5 mins
Answers
Answer:
Step-by-step explanation:
492
{10, 11, 12, ..., 55}
How many numbers in the above set are divisible by 2 but not by 10?
(A) 17
(B) 18
(C) 19
(D) 21
Answers
Considering concepts of divisibility, the amount of numbers in the set that are divisible by 2 but not by 10 is:
(C) 19.
What are the rules for division by 2 and by 10?Numbers that finish in 0, 2, 4, 6, and 8 are divisible by 2, that is, even numbers are divisible by 2.Numbers that finish in 0 are divisible by 10. Hence, every number that is divisible by 10 is also divisible by 2.The data-set has (55 - 10) + 1 = 46 numbers, hence 23 are divisible by 2. 20, 30, 40 and 50 are also divisible by 10, that is, 4 numbers have to be removed, hence the amount is:
23 - 4 = 19.
Which means that option C is correct.
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Si A es tu edad, la tasa de pulsos máxima que deberías mantener durante actividades aeróbicas es de 0.88 (220-A). ¿Cúal es la tasa de pulsos máxima que deberías mantener si tú estuvieras en el rango de los 20 años?
Answers
Respuesta:
176
Explicación paso a paso:
Dado :
La frecuencia máxima del pulso que se debe mantener durante las actividades aeróbicas viene dada por:
0,88 (220-A); donde A = edad
Para una persona de 20 años
Supongamos que la edad es de 20 años; A = 20
Poniendo A = 20 en la ecuación;
0,88 (220 - A); A = 20
Frecuencia de pulso máxima:
0,88 (220 - 20)
0,88 (200)
= 176
La frecuencia de pulso máxima es 176
How large a sample is required to obtain a 99% confidence interval for the proportion of all newborns who are breast-fed exclusively in the first two months of life to within 2 percentage points?
Answers
A sample size of approximately 4,148 newborns is required to obtain a 99% confidence interval for the proportion of all newborns who are breast-fed exclusively in the first two months of life to within 2 percentage points.
To calculate the required sample size for a 99% confidence interval with a margin of error (precision) of 2 percentage points for the proportion of newborns breast-fed exclusively in the first two months of life,
we will use the following formula:
\(n = (Z^2 * p * (1-p)) / E^2)\)
where:
n = required sample size
Z = Z-score for the desired confidence level (in this case, 99%)
p = estimated proportion (since we don't have this value, we will use 0.5 for the most conservative estimate)
E = margin of error (2 percentage points, or 0.02 in decimal form)
For a 99% confidence interval, the Z-score is 2.576.
Now, let's plug these values into the formula:
\(n = (2.576^2 * 0.5 * (1-0.5)) / 0.02^2\)
n = (6.635776 * 0.5 * 0.5) / 0.0004
n = 1.658944 / 0.0004
n ≈ 4147.36
Since we cannot have a fraction of a person, we will round up to the nearest whole number.
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A farmer has 1080 eggs if each tray carries 30 eggs , how many trays will he have ?
Answers
PLEASE GIVE BRAINLIEST :)
thank you and have a good day
Answer:
He will have 36 trays full of eggs.
Step-by-step explanation:
To find out how many trays he will have, we have to divide 1080 (the number of eggs), by the number of trays that carry 30 eggs.
1080/30 = 36
Answer:
Step-by-step explanation:
Divide 1080 by 30
1080/30 = 36 trays
Parker just started a running plan where he runs 16 miles the first week and then
increases the number of miles he runs by 5% each week. If he keeps up this plan for 5
weeks, how many total miles would Parker have run, to the nearest whole number?
Answers
The total number of miles that Parker would have to run is given as follows:
88.41 miles.
What is a geometric sequence?A geometric sequence is a sequence of numbers where each term is obtained by multiplying the previous term by a fixed number called the common ratio q.
As the number of miles increases by 5% each week, the common ratio is obtained as follows:
100% + 5% = 105% = 1.05.
Hence the number of miles each week is given as follows:
16 miles.16 x 1.05 = 16.8 miles.16.8 x 1.05 = 17.64 miles.17.64 x 1.05 = 18.52 miles.18.52 x 1.05 = 19.45 miles.Then the total number of miles is given as follows:
16 + 16.8 + 17.64 + 18.52 + 19.45 = 88.41 miles.
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Someone help!
(3x7)-(3x2) = 3 x (?-?)
Answers
Answer:
5
Step-by-step explanation:
21 - 6 = 3x
15 = 3x
divide both sides by 3
15/3 = 3x/3
5 = x
In the triangle below, what is the cosine of 62 degrees?
Answers
Answer:
A. 8/17
Step-by-step explanation:
Cosine = adjacent over hypotenuse
Adjacent to angle 62 is 8 (The two angles are said to be adjacent angles when they share the common vertex and side).
The hypotenuse is 17 (opposite of right angle)
Canada has a population that is about 1/10 as large as the United States. If Canada's population is about 32 million, about how many people live in the United States? Explain the number of zeros in your the answer.
Answers
Lets US population be x
ATQ
\(\\ \sf\longmapsto \dfrac{x}{10}=32\)
\(\\ \sf\longmapsto x=32(10)\)
\(\\ \sf\longmapsto x=320million \)
1 million has 6zeros 320million has 7zerosCanada has a population that is about 1/10 as large as the United States. If Canada's population is about 32 million, about how many people live in the United States? Explain the number of zeros in your the answer.
Solution:-Given,
Population of Canada = 32 million (1/10 of that of the USA)
=> Let the population of the USA be 'x'.
Now,
→ x/10 + 32 (million)
→ x = 32 × 10
→ x = 320 million.
(The number of zeros in 1 million is 6, so the number of zeros in 320 million will be 7)
Answer:-320000000 or 320 million.
What is the value of k if one of the zeros of the quadratic polynomial K 2 x2 2x 5?
Answers
If one of the zeros in the quadratic polynomial is 4, then the value of k is 3.
What is polynomial?A polynomial is a mathematical expression made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables. x2 4x + 7 is an illustration of a polynomial with a single indeterminate x. A polynomial is a mathematical expression that only uses the operations addition, subtraction, multiplication, and non-negative integer exponentiation of variables. Variables are also known as indeterminates in mathematics.
Here,
4 is a root/zero of polynomial
P(x) = (k-2) x² - 2 x - (k+5)
P(4) = 0
(k - 2) 4² - 2 * 4 - (k+5) = 0
15 k - 45 = 0
k = 3
The value of k if 4 is one of the zeros of the quadratic polynomial is 3.
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Complete question:
If one of the zeros of a quadratic polynomial(k-2)x^2-2x-(k+5) is 4 , find value of k.