Answer:it’s 9
the multiplication inverse of 0.9 is 10/9
Step-by-step explanation:
Multiplicative inverse of 0.9 is equals to \(\frac{10}{9}\).
What is multiplicative inverse?" Multiplicative inverse is defined as the product of two number is equals to one then both numbers are multiplicative inverse of each other."
According to the question,
'x' represents the first number
'y' represents the second number
Given,
Number 'x' = 0.9
= \(\frac{9}{10}\)
As per the definition of multiplicative inverse we have,
\((x) (y) =1\)
⇒ \(y= \frac{1}{x}\)
⇒ \(y= \frac{1}{\frac{9}{10} }\)
⇒ \(y= \frac{10}{9}\)
Hence, multiplicative inverse of 0.9 is equals to \(\frac{10}{9}\).
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sal wants to save more than $50. He starts with $10 and saves $2.50 each week
I want to know this problem as an inequalities
Answer:
\(10 + 2.50 w > 50\)
Step-by-step explanation:
Given
\(Start =10\)
\(Rate = 2.50\)
Total = More than 50
Required
Represent as an inequality
Represent the weeks with w.
So, his savings in w weeks is:
\(Savings = Start + Rate * w\)
\(Savings = 10 + 2.50 * w\)
\(Savings = 10 + 2.50 w\)
His saving is expected to be more than 50.
More than, here means greater than (>)
So, we have;
\(Savings > 50\)
\(10 + 2.50 w > 50\)
Problem5
On the first day of September, 2019, Gloria planted 5 flowers in her garden. The number of flowers, which she plants at
every day of the month, forms an arithmetic sequence. The number of flowers she is going to plant in the last day of
September is 63.
(a) Find the common difference of the sequence.
(b) Find the total number of flowers Gloria is going to plant during September.
The common difference of the sequence is d = 2.
The total number of flowers Gloria is going to plant during September is 960.
Let d represent the arithmetic sequence's common difference. Therefore, Gloria plants 5 + 30d = 63 blooms on the last day of September. We obtain d = 2 by solving for d.
The sum of the arithmetic sequence represents the total number of flowers produced by Gloria plants in September. S = (n/2)(a1 + an) is the result of using the formula for the sum of an arithmetic series.
S is the sequence's total, n is its number of terms, a1 is its first term, and an is its last term. In this instance, n = 30 (because September has 30 days), a1 = 5, and a = 63. These variables are substituted, and the result is S = (30/2)(5 + 63) = 960.
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ANSWER THIS QUESTION PLZ
Answer:
640 im pretty sure
Step-by-step explanation:
what is the maximum height of the T-shirt after being fired from the cannon? round to the nearest tenth. Will the fans sitting in the bleachers, 90 feet above the field, catch the t-shirt? Justify your response
Based on the given trajectory, the leading numerical coefficient is a negative number, hence, the graph of this function is a parabola opening downwards.
In a parabola opening downwards, the maximum value is the vertex of the parabola. So, in order to determine the maximum height, let's solve for the vertex of the parabola. The formula is:
\(t=-\frac{b}{2a}\)where in the quadratic function is in the form of at² + bt + c = 0.
So, in the given trajectory function, a = -16, b = 88, and c = 5. Let's replace the variables in the formula above with their corresponding numerical value.
\(t=-\frac{88}{2(-16)}\)Then, solve.
\(t=-\frac{88}{(-32)}\Rightarrow t=2.75\)Therefore, at t = 2.75 seconds, the t-shirt reached its maximum height.
So, to determine the maximum height, replaced "t" in the trajectory function with 2.75.
\(h(2.75)=-16(2.75^)^2+88(2.75)+5\)\(h(2.75)=-121+242+5\)\(h(2.75)=126\)Hence, after 2.75 seconds, the t-shirt reached its maximum height which is 126 feet.
Since the maximum height of the t-shirt is 126 feet, then yes, there is a chance that the fans sitting in the bleachers 90ft above the field will catch a T-shirt.
13 People fit comfortably in a 5 feet by 5 feet area. Use this value to estimate the size of a crowd that is
5 feet deep on both sides of the street along a 2.7-mile section of a parade route.
The size of the crowd that is 5 feet deep on both sides of the street along a 2.7 -mile section of a parade route is 74,131 people.
How to calculate the crowd?The number of people that can fit comfortably in a 5 feet by 5 feet area = 13.
Therefore;
The ratio of the number of people per unit area = 13/(5 × 5) = 13/25
The area A occupied by the crowd = 5 feet × 2.7 mile × 2
2.7 miles = 14,256 feet
∴ A = 5 feet × 14,256 feet × 2 = 1,42,560ft²
We then have:
\(\frac{number\ of\ people}{1,42,560} = \frac{13}{25}\)
∴Number of people = 13/25 × 1,42,560 = 74,131.2 ≈ 74,131 people
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Unions, intersections, and complements involving 2 sets
Sets B and C are subsets of the universal set U.
These sets are defined as follows.
U={f, k, m, s, x, y, z)
B={k, s, y}'
C={s,z}
(a) B'UC' = 1
(b) B'nc =
Intersection of B'∩C = {k, y}
To find the intersection of B' and C, we need to first find the complement of set B (B') and then find the intersection between B' and C.
1. Complement of set B (B'):
The complement of set B (B') consists of all elements in the universal set U that are not in set B. From the given information, set B is defined as {k, s, y}', which means it contains all elements in U except for k, s, and y. Therefore, the complement of set B is {f, m, x, z}.
2. Intersection between B' and C:
Now, we need to find the intersection between B' (complement of B) and set C. From the given information, set C is defined as {s, z}. To find the intersection, we need to identify the common elements between B' and C.
The elements present in both B' and C are k and y. Therefore, the intersection of B' and C is {k, y}.
So, the answer to (b) is B'∩C = {k, y}.
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An ice cream shop owner wishes to know what his best flavor is, so he
interviews everyone who comes into the shop on Monday, Wednesday, and
Friday; this is a sample.
Answer:
C cluster
Step-by-step explanation:
just took it
Please help: Use the graph of the function f to decide whether the value of the given quantity exists. (If an answer does not exist, enter DNE.)
#a
f(-2) is a vertical asymptote Doesn't exist#b
lim_x->-2(f(x))=f(-2)Doesn't exist#c
(0,1) is presentExists#d
f(0) exists#e
Yes existsCheck there is a point over x=2#f
Same like f(2)
Exists#g
f(4) not in lineDoesn't existThe only option for which the limit exist is option f, while for the other options the DNE.
How to determine limit if a limit doesn't exists ?
"If the graph has a vertical asymptote and one side of the asymptote goes toward infinity and the other goes toward negative infinity, then the limit does not exist. If the graph has a hole at the x value c, then the two-sided limit does exist and will be the y-coordinate of the hole."
Let's check the values of the given quantity exist or not. Therefore, we can write,
(a) f(-2) = DNE
(b) \(\lim_{x \to \--2} f(x)\) = DNE
(c) f(0) = DNE because hole are exist
(d) \(\lim_{x \to \-0} f(x)\) = DNE
(e) f(2) = DNE
(f) \(\lim_{x \to \-2} f(x)\) = 0.5 (exist)
(g) f(4) = DNE
(h) \(\lim_{X \to \-4} f(x)\) = DNE
Hence, the only option for which the limit exist is option f.
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In a factory, 50 out of 1,000 pens are found to be defective.
What percentage of the pens is defective?
O 0.05%
O 0.5%
O 5%
Giving brainliest!
Find the system of inequalities which represents the shaded region on the coordinate plane.
A)y> 2x² + x and y> 1 + x
B)y > 2x² + x and y> 1 - x
C)y> 2x²- x and y> 1 + x
D)y > 2x² - x and y > 1 - x
Answer:
given, y≥2x+1 and
y>
2
1
x−1
first, draw the graph for equations y=2x+1 and y=
2
1
x−1
for y=2x+1
substitute y=0 we get, 2x+1=0⟹x=−0.5
substitute x=0 we get, y=1
therefore, y=2x+1 line passes through (0.5,0) and (0,1) as shown in fig.
Hence, y≥2x+1 includes the region above the line.
for y=
2
1
x−1
substitute y=0 we get,
2
1
x−1=0⟹x=2
substitute x=0 we get, y=−1
therefore, y=2x+1 line passes through (2,0) and (0,-1) as shown in fig.
Hence, y>
2
1
x−1 includes the region above the line.
the intersection region is the shaded region as shown in above figure which includes I, II and III quadrants.
Therefore, quadrant IV has no solution please make as brainlelist
If you travel 2.2 miles in 30 minutes. How many miles did you travel in 12 minutes?
Let m = miles traveled in 12 minutes.
2.2/m = 30/12
Cross-multiply here.
30m = (2.2)(12)
30m = 26.4
m = 26.4 ÷ 30
m = 0.88
In 12 minutes, 0.88 miles is traveled.
SOMEONE PLEASE ANSWER THIS
BRAINLIEST GETS 100 POINTS THANK YOU PLEASE SOLVE QUICKLY
Step-by-step explanation:
There are 3 steps.
The height of each step is
1.8 / 3 = 0.6 mThe width of each step is
1.2 / 3 = 0.4 mThe length of each step is 2.4 m
a) The figure can be broken into 3 parts horizontally or vertically.
If broken horizontally, we get 3 rectangular prisms and their dimensions will be
0.6 m x 1.2 m x 2.4 m0.6 m x 0.8 m x 2.4 m0.6 m x 0.4 m x 2.4 mb) The volume of concrete is
0.6*2.4( 1.2 + 0.8 + 0.4) = 3.456 m³Answer:
Part (a)
2.4m × 0.4m × 0.6m
2.4m × 0.4m × 1.2m
2.4m × 0.4m × 1.8m
Part (b)
3.456 m³
Step-by-step explanation:
If each stair is the same length, width and height then:
length of stair = 2.4 mheight of stair = 1.8 ÷ 3 = 0.6 mwidth (depth) of stair = 1.2 ÷ 3 = 0.4 mPart (a)
The set of stairs can be broken into 3 rectangular prisms.
Divide the stairs by drawing vertical lines from the vertices (see attachment for annotated diagram). Therefore each rectangular prism has the same length and width, but a different height.
Volume of a rectangular prism = L × W × H
Therefore, the dimensions of each solid figure (L × W × H) are:
Red: 2.4m × 0.4m × 0.6mYellow: 2.4m × 0.4m × 1.2mGreen: 2.4m × 0.4m × 1.8mPart (b)
To calculate the volume of concrete needed to form the stairs, sum the volumes of the rectangular prisms:
\(\begin{aligned}\implies \textsf{Volume of concrete} & = \sf (2.4 \times 0.4 \times 0.6) + (2.4 \times 0.4 \times 1.2) + (2.4 \times 0.4 \times 1.8)\\& = \sf 0.576 + 1.152 + 1.728\\&= \sf 3.456\:\:m^3\end{aligned}\)
state if the given functions are inverses
NO LINKS!!!! Part 1
Step-by-step explanation:
3:
h(x)=(-3x-15)/5
let y=(-3x-15)/5
interchanging role of x &y
x=(-3y-15)/5
5x+15=-3y
y=-(5x+15)/3
h-1(x)=-(5x+15)/3
not
equal to f(x)=(-3x-6)/4
Given function are not function of each other .
4:
g(x)=2/3x-2/3
let
y=2/3(x-1)
interchanging role of x &y
x=2/3(y-1)
3/2x+1=y
g-1(x)=3/2x+1
not equal to f(x)=½x+1
Given function are not function of each other .
Problem 1
Answer: You are correct. They are inverses--------------------
Explanation:
One way to see if we have an inverse pair or not is to compute these two composite functions
f(g(x))g(f(x))If both result in x, and just that, then we have shown that they are inverses of one another.
f(x) = (2x)/3
f(x) = (2/3)x
f(g(x)) = (2/3)*g(x)
f(g(x)) = (2/3)*(3/2)x
f(g(x)) = x
The steps to show that g(f(x)) = x are very similar
g(x) = (3/2)x
g(f(x)) = (3/2)*f(x)
g(f(x)) = (3/2)*(2/3)*x
g(f(x)) = x
So this verifies that you have the correct answer.
======================================================
Problem 2
Answer: These functions are inverses of each other.--------------------
Explanation:
We'll use the same idea as problem 1
f(x) = 2 - (3/4)*x
f(g(x)) = 2 - (3/4)*( g(x) )
f(g(x)) = 2 - (3/4)*( (-4/3)x + 8/3 )
f(g(x)) = 2 - (3/4)*(-4/3)x - (3/4)*(8/3)
f(g(x)) = 2 + x - 2
f(g(x)) = x
So far so good, but we need to check the other way around as well
g(x) = (-4/3)x + 8/3
g(f(x)) = (-4/3)*( f(x) ) + 8/3
g(f(x)) = (-4/3)*( 2 - (3/4)*x ) + 8/3
g(f(x)) = (-4/3)*(2) + (-4/3)*(-3/4)*x + 8/3
g(f(x)) = -8/3 + x + 8/3
g(f(x)) = x
This verifies that f(x) and g(x) are inverses of each other.
Problems 3 and 4 will have similar steps.
Before adding the following fractions, you need to find the common ? 2/3 + 1/6 =
Answer:
denominator
Step-by-step explanation:
Answer:
5/6
Step-by-step explanation:
2/3×2/2 + 1/6
4/6 + 1/6
5/6
Busy transport company records that the arrival of tracks carrying goods is 30 shillings per Day.Assuming the interatrial time follows an exponential distribution and the service time is also an exponential with an average of 36 minutes.calculate the expected queue size
The expected queue size is 0.75 tracks waiting to be serviced by the transport company.
How do we calculate the expected queue size of the company?To calculate the expected queue size, we need to use Little's Law, which states that: Average queue size = Average arrival rate x Average time in queue
The average arrival rate can be calculated from the interarrival time, which follows an exponential distribution. The mean interarrival time is equal to 1/30 days, or 0.0333 days.
The average time in queue can be calculated from the service time, which is also exponential with a mean of 36 minutes. To convert this to days, we divide by the number of minutes in a day (1440). This gives a mean service time of 0.025 days (36/1440).
Therefore, the average queue size can be calculated as:
= Average arrival rate x Average time in queue
= 1/0.0333 x 0.025
= 0.75 tracks.
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what percent of 75 is 57?
Answer:
76%
Step-by-step explanation:
57/75
(57 X 100)/ 75
5700/75
1900/25
76/1
76
Charges for advertising on a TV show are based on the number of viewers, which is measured by the rating. The rating is a percentage of the population of 110 million TV households. The CBS television show 60 Minutes recently had a rating of 7.8, indicating that 7.8% of the households were tuned to that show. An advertiser conducts an independent survey of 100 households and finds that at least b+1 were tuned to 60 Minutes. Assuming that the 7.8 rating is correct, find the probability of surveying 100 randomly selected households and getting at least 5+1 tuned to
60 Minutes.
The probability of surveying 100 randomly selected households and getting 4 or fewer tuned to 60 minutes is only 0.02%.
How to calculate the probabilityP(X <= 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)
P(X = k) = (100 choose k) * 0.078^k * (1 - 0.078)^(100-k)
P(X <= 4) = (100 choose 0) * 0.078^0 * (1 - 0.078)^(100-0) + (100 choose 1) * 0.078^1 * (1 - 0.078)^(100-1) + (100 choose 2) * 0.078^2 * (1 - 0.078)^(100-2) + (100 choose 3) * 0.078^3 * (1 - 0.078)^(100-3) + (100 choose 4) * 0.078^4 * (1 - 0.078)^(100-4)
Using a calculator or software, we can find that:
P(X <= 4) = 0.000203
This means that the probability is 0.02%.
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Charges for TV advertising on a TV show are based on the number of viewers, which is measured by the rating. The rating is the percentage of population of 110 million TV households.The CBS television show 60 minutes recently had a rating of 7.8, indicating that 7.8% of the household were tuned to that show.An advertiser conducts an independent survey of 100 households and finds that only 4 were tuned to 60 minutes. Assuming that the 7.8 rating is correct, find the probability of surveying 100 randomly selected households and getting 4 or fewer tuned to 60 minutes.Does the result suggest that the rating of 7.8 is too high?
Which point would NOT be a solution to the system of linear inequalities shown below?
It's asking would not be a solution soo
(-10, -9) as you can see
You're welcome thank me later
Most cats have shoulder heights between 8 and 12 inches. The
following compound inequality relates the estimated shoulder height
(in inches) of a cat to the internal dimension of the skull x (in cubic
inches):
8s 1.03x-32.4 ≤ 12
Which compound inequality represents the range for the skull size of
cats? Answer choices are rounded to the nearest hundredth.
The compound inequality representing the range for the skull size of cats is: 39.32 ≤ x ≤ 43.01.
To find the compound inequality that represents the range for the skull size of cats, we need to solve the given compound inequality:
8 ≤ 1.03x - 32.4 ≤ 12
Let's solve it step by step:
Add 32.4 to all parts of the compound inequality:
8 + 32.4 ≤ 1.03x - 32.4 + 32.4 ≤ 12 + 32.4
40.4 ≤ 1.03x ≤ 44.4
Divide all parts of the compound inequality by 1.03 (the coefficient of x):
40.4/1.03 ≤ (1.03x)/1.03 ≤ 44.4/1.03
39.32 ≤ x ≤ 43.01
Therefore, the range for the skull size of cats can be represented by the compound inequality:
39.32 ≤ x ≤ 43.01
Rounded to the nearest hundredth, the compound inequality representing the range for the skull size of cats is:
39.32 ≤ x ≤ 43.01
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What do I do if I fail an online Course in HS
Spot Robin says, "I can find 6 x 9 by
multiplying 4 x 9 and doubling it." Does her statement
make sense? Justify your answer.
Answer:
No
Step-by-step explanation:
It does not make sense becuse 6x9=54
And 4x9(2)=72 so it would make no sense
Please, answer my question, What is the sum of (3/4) + (1/2)?
A. 1 1/4
B. 1 1/2
C. 2
D. 3 1/4
Answer: A (1 1/4)
Step-by-step explanation: trust me
Answer:
1 1/4
Step-by-step explanation:
3/4+1/2=
3/4+2/4=
5/4=
1 1/4
Identify the vertex of the function below. f(x)−4=(x+1)2
The vertex of the function f(x)−4=(x+1)2 is (-1, 4).
What is the vertex of the function?
In mathematics, the vertex of a function is the highest or lowest point on the graph of a quadratic function. The vertex can be expressed in the form (h, k), where h represents the x-coordinate of the vertex and k represents the y-coordinate of the vertex.
The given function is in vertex form, which is f(x) = a(x - h)^2 + k, where (h, k) is the vertex of the parabola.
Comparing with the given function, we have:
a = 1
h = -1
k = 4
Therefore, the vertex of the function f(x)−4=(x+1)2 is (-1, 4).
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(Will give brainiest to whoever answers correctly)PLEASE this is do tomorrow and I don't know how to do it, also explain step by step how you got your answer
Answer:
64 guarts of ice-cream
8/5 quarts of ice-cream = 1/4 cake
x guarts of ice-cream = 10 cakes
cross multiply and find x you'd get 64
If triangle has a side 16.5 side 29 and side x What is value of x
The third side of the triangle 12.5
A triangle is a polygon with three edges and three vertices. The important property of a triangle is that the sum of the internal angles of a triangle is equal to 180 degrees. This property is called angle sum property of triangle.
we the measurements of given two sides of the triangle 16.5 and 29
In a triangle, the sum of any two sides should be greater than the third side and the difference between any two sides should be lesser than that of the third side.
The sum of two sides rule
\(x + 16.5 > 29\\ x > 29 - 16.5\\ x > 12.5\\\)
The difference between the two sides rule
\(29 - 16.5 < x \\ 12.5 < x\)
Therefore, the value of x is 12.5
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Can someone help me?Solve the equation , check for extraneous solutions
Answer:
0
Step-by-step explanation:
\(2\sqrt[3]{(1-3x)} =6-4=2\\\sqrt[3]{(1-3x)}=\frac{2}{2} =1\\\sqrt[3]{(1-3x)}^{3} =1^{3} \\(1-3x)=1\\-3x=0\\x=0\)
help PLSS brainliest I’ll give
The equations x² + 4x + 3 = 0 and x² -6x + 13 = 0 are equivalent to (x + 2)² = 1 and (x - 3)² = -4
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables. An equation can either be linear, quadratic, cubic and so on
The standard equation of a quadratic function is:
y = ax² + bx + c
1) Given that:
x² + 4x + 3 = 0
subtract 3 from both sides:
x² + 4x = -3
add to both sides the square of half the coefficient of x:
x² + 4x + 4 = -3 + 4
(x + 2)² = 1
2) Given that:
x² - 6x + 13 = 0
subtract 13 from both sides:
x² - 6x = -13
add to both sides the square of half the coefficient of x:
x² - 6x + 9 = -13 + 9
(x - 3)² = -4
The equations are (x + 2)² = 1 and (x - 3)² = -4
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What is the difference between a tax credit and a tax deduction?
Answer:
A deduction can only lower your taxable income and the tax rate that is used to calculate your tax. This can result in a larger refund of your withholding. A credit reduces your tax giving you a larger refund of your withholding, but certain tax credits can give you a refund even if you have no withholding.
Step-by-step explanation:
Circle Geometry please help
Answer:
The value of m is 70°. m is inscribed angle and inscribed angle is exactly half of central angle. where central angle is 140°.
Solve for the unknown in the following diagram. Round the answer to two decimal places.
cm
Answer:
Step-by-step explanation: