BRAINLIEST!
A store manager wishes to investigate whether there is a relationship between the type of promotion offered and the number of customers who spend more than $30 on a purchase. Data will be gathered and placed into the two-way table below.
Answer:
D. The manager should check both relative frequencies by row and by column to look for an association.
Step-by-step explanation:
the correct answer would be D
Find the function rule.
X: -2, -1, 0, 1, 2
Y: 9,4, -1, -6, -11
The function rule is y = -5x - 1 , obtained by observing the linear relationship where y decreases by 5 as x increases by 1.
To find the function rule that relates the values of x to y , let's first observe the pattern in the given data:
[tex]x & y \\-2 & 9 \\-1 & 4 \\0 & -1 \\1 & -6 \\2 & -11 \\[/tex]
Notice that as x increases by 1, y decreases by 5. This suggests a linear relationship between x and y , where the slope of the line is -5.
The general form of a linear function is ( y = mx + b ), where ( m ) is the slope and ( b ) is the y-intercept.
To find the y-intercept, let's pick any point from the table, for example, when ( x = 0 ), ( y = -1 ).
So, we can plug the values of ( x ) and ( y ) into the linear function formula:
[tex]\[-1 = (-5)(0) + b\][/tex]
[tex]\[-1 = 0 + b\][/tex]
[tex]\[b = -1\][/tex]
Now we have the slope (( m = -5 )) and the y-intercept (( b = -1 )), so the function rule is:
[tex]\[ y = -5x - 1 \][/tex]
Now, let's verify this function rule with another point from the table, for example, when ( x = 2 ):
[tex]\[ y = -5(2) - 1 \][/tex]
[tex]\[ y = -10 - 1 \][/tex]
[tex]\[ y = -11 \][/tex]
This matches the value of ( y ) in the table, confirming that our function rule is correct.
determine if the number is written in scientific notation. if not explain 5.6 x 10^12
A. no its not written as a power of 10
B.no the first factor is not a number between 1 and 10
C. yes the number is written in scientific notation
Explain your answer please
Answer:
C. Yes, the number is written in scientific notation.
Step-by-step explanation:
We have been given a number [tex]5.6\times 10^{12}[/tex]. We are asked to determine whether our given number is written in scientific notation or not.
We know that when a number greater than 1 and less than 10 is multiplied by a power of 10, then the number is written in scientific notation.
Upon looking at our given number we can see the number 5.6 is between 1 and 10. In addition, 5.6 is being multiplied by 10 to the power 12.
Therefore, our given number is written in scientific notation and option C is the correct choice..
Which property is illustrated by this problem?
(3+4) + 5 = 3 + (4+5)
A. Associate property of addition
B. Additive identity
C. Commutative property of addition
20 Points!!!
For working 13 hours you earned $45.50 and $94.50 for 27 hours. What is your rate of pay in dollars per hour? a. 14 dollars per hour b. 3.50 dollars per hour c. 6.50 dollars per hour d.2.07 dollars per hour
Will give branliest!!!
Help ASAP.
Answer:
$3.50 per hour
Step-by-step explanation:
Given : For working 13 hours you earned $45.50 and $94.50 for 27 hours
To Find :What is your rate of pay in dollars per hour?
Solution :
Pay for 13 hours = $45.50
So, Pay for 1 hour = [tex]\frac{45.50}{13}[/tex]
Pay for 1 hour = [tex]3.50[/tex]
So, rate is $3.50 per hour
So, Option B is true
Hence rate of pay in dollars per hour is $3.50 per hour
Zaira spent 55 hours in 2 weeks working on a science project. she worked 32 hours the first week. Write and solve an addition equation to find the amount of time she spent working the second week.
Evaluate a/b for a= 1/2 and b= - 3/7
A) - 7/6
B) 3/14
C) - 3/14
D) - 32/21
Please explain your answers.
Thanks! : )
Answer: -7/5
Substitute the value of the variable into the expression and simplify.
Exact Form: −7/6
A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius of the cone?
Solve for x
Please help quick
I need help remembering the steps to solve a polynomial equation
What is the range of the function f(x) = –2(6x) + 3?
A) (-oo,-2)
B) (-oo,3)
C) [-2,oo)
D) [3,oo
Answer:
The range of the function is (-∞,3)
B is correct.
Step-by-step explanation:
Given: [tex]f(x)=-2(6)^x+3[/tex]
It is an exponential function which coefficient is negative.
Exponential function: [tex]f(x)=ab^x+c[/tex]
If a>0 then range (c,∞)
If a<0 then range (-∞,c)
[tex]-2(6)^x+3\rightarrow ab^x+c[/tex]
[tex]a=-2[/tex]
[tex]c=3[/tex]
Range: (-∞,3)
Hence, The range of the function is (-∞,3)
Find the value of y when x equals -14 -2x-3y=49
Which relationship describes angles 1 and 2?
Select each correct answer.
supplementary angles
complementary angles
vertical angles
adjacent angles
Evaluate the exponential expression. Write your answer as a fraction in simplest form.
(2^3)^-2
Assume that the grasshopper in the food pyramid above must eat half its body weight in grass each day. If an average-size grasshopper weighs 2 grams, and 1 blade of grass weighs 0.1grams (one tenth of a gram), how many blades of grass does the grasshopper need to eat each day?
Answer:
The grasshopper needs to eat 10 blades of grass each day.
Step-by-step explanation:
The grasshopper in the food pyramid above must eat half its body weight in grass each day.
The average weight of the grasshopper is 2 grams.
The weight of one blade of grass is 0.1 grams.
Now,
The weight of grass eating by the grasshopper per day is 1 gram.
Let us assume that the grasshopper eats the "n" number of blades of the grass.
Therefore,
[tex]\begin{aligned}n \times 0.1\;\rm{gm}&=1\;\rm{gm}\\n&=\dfrac{1}{0.1}\\n&=10\end{aligned}[/tex]
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An hourglass consists of two sets of congruent composite figures on either end. Each composite figure is made up of a cone and a cylinder, as shown below:
© 2011 Jupiterimages Corporation
Each cone of the hourglass has a height of 18 millimeters. The total height of the sand within the top portion of the hourglass is 54 millimeters. The radius of both cylinder and cone is 8 millimeters. Sand drips from the top of the hourglass to the bottom at a rate of 10π cubic millimeters per second. How many seconds will it take until all of the sand has dripped to the bottom of the hourglass?
68.3
38.4
268.8
230.4
HELP ASAP!!!!!!!!!!!!!!!!!!!!
a. 49
b. 12
c. 7
d. 1
abcd is an isosceles trapezoid with legs AB and CD and base BC. If the length of AB is 7y-4, the length of BC s 4y-6 and the length of CD is 8y-18, find the value of y. 30 points for brainliest!
The value of 'y' in the isosceles trapezoid ABCD is 14 and this can be determined by using the properties of isosceles trapezoid.
Given :
ABCD is an isosceles trapezoid with legs AB and CD and base BC.If the length of AB is (7y - 4), the length of BC s (4y - 6) and the length of CD is (8y - 18).The two legs are of equal length In any isosceles trapezoid that means:
7y - 4 = 8y - 18
Add 18 on both sides in the above equation.
7y - 4 + 18 = 8y - 18 + 18
7y + 14 = 8y
Now, subtract 7y on both sides in the above equation.
7y + 14 - 7y = 8y - 7y
Simplify the above expression in order to get the value of 'y'.
y = 14
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Which of these numbers is an irrational number? of these numbers is an irrational number? 3⁄5, Square root of 4, Square root of 25, Square root of 20, 5/3
Calculate the maximum volume of a box that has no top and that is to be manufactured from a 30 inch by 20 inch piece of cardboard
A flower garden is in the shape of a right triangle. One leg of the triangle is 6 ft long and the hypotenuse is 12 ft long. What is the length of the other leg?
answers
A. 10.4ft
B.12.8ft
C13ft
D14.6ft
How many drivers who start driving before they are 20 are convicted of a traffic violation within the first year of driving?
If you answer (making sense) and explain (so I can understand) you will be awarded! Please help ASAPA
Help please!
The length of a football field is 67 yards greater than the width the perimeter of the field is 346 yard. Find the length and width of the football field.
true or false 120% of a whole number is always greater than the number? and why?
Write three functions.
In the first function, y should vary directly with x.
In the second function, y should vary inversely with x.
In the third function, the relationship between x and y should be neither inverse variation nor direct variation.
Describe the graph of each function and give a real-world example for each.
So i need help (picture included)
How long will it take for 750 mg of a sample of radium-225, which has a half-life of about 15 days, to decay to 68 mg?
A. ≈ 50 days
B. ≈ 54 days
C. ≈ 48 days
D. ≈ 52 days
Answer:
52 Days
Step-by-step explanation:
45% of 40 is 18% of what number?
Answer:
45% of 40 is 18% of 100
Step-by-step explanation:
45% of 40 is 18% of what number
First we find out what is 45% of number 40
45% times 40
[tex]\frac{45}{100} * 40= 18[/tex]
Now we find
18 = 18% of what number
Let the unknown number be x
18 = 18% * x
[tex]18= \frac{18}{100} * x[/tex]
18 = 0.18 * x
Divide by 0.18 on both sides
100= x
So 45% of 40 is 18% of 100
The complete statement is 45% of 40 is 18% of 100
How to determine the number that completes the statementFrom the question, we have the following parameters that can be used in our computation:
45% of 40 is 18% of what number
Represent the number with x
So, we have
45% of 40 is 18% of x
Express as an equation
45% of 40 = 18% of x
Next, we have
18 = 0.18x
Divide through by 0.18
x = 100
Hence, 45% of 40 is 18% of 100
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Information is given about a polynomial f left parenthesis x right parenthesisf(x) whose coefficients are real numbers. find the remaining zeros of f. degree 3; zeros: negative 8 comma negative 3 minus i−8, −3−i enter the remaining zeros of f.