Choose all of the equations for which x = 2 is a solution.
A. x + 3 = 5
B. x + 2 = 8
C. x + 1 = 1
th
D. x - 2 = 4
E. x - 7= -5
Answers
Answer:
i do beleve its ether A or E
Step-by-step explanation:
Related Questions
when a marketing researcher at burger king believes that local profits will increase by 5% if burger king increases its advertising budget in st. louis by $100,000 over the next three months, this is an example of a(n): secondary data analysis. experience survey. descriptive study. focus group. hypothesis.
Answers
This is an example of a hypothesis. A hypothesis is an educated guess or prediction about the relationship between variables based on prior knowledge or experience.
In this case, the marketing researcher has formed a hypothesis that increasing the advertising budget by $100,000 will result in a 5% increase in local profits in St. Louis over the next three months. This hypothesis can be tested through further research and data analysis to determine if it is supported by the evidence.
A hypothesis is a statement that proposes a potential relationship between two or more variables. It is often used in scientific research to provide a starting point for further investigation and to guide the development of experiments or studies. In the example you provided, the marketing researcher has formed a hypothesis that increasing the advertising budget by $100,000 in St. Louis will result in a 5% increase in local profits over the next three months.
The purpose of forming a hypothesis is to make predictions about what might happen in a certain situation based on prior knowledge or experience. In this case, the marketing researcher may have observed similar trends in the past or may have data to support their belief that increasing the advertising budget will lead to increased profits. The hypothesis provides a clear direction for the research, as the researcher can now design and conduct studies to test the hypothesis and see if it is supported by the evidence.
If the results of the studies support the hypothesis, it provides evidence that there is a relationship between advertising budget and local profits, and the researcher can make recommendations to the company to increase advertising budget in order to increase profits. On the other hand, if the results do not support the hypothesis, the researcher may need to revise the hypothesis or come up with a new one to explain the results.
In conclusion, a hypothesis is a critical component of the scientific research process, as it provides a starting point for further investigation and helps guide the development of studies
To learn more about hypothesis click here:
brainly.com/question/29519577
#SPJ4
at the supermarket, andy paid 11.50 for a water melon and five apples khairi paid 15.85 for one such watermelon and 10 such apples . find the cost of one such watermelon
Answers
Answer:
x=7.15
y=0.87
Step-by-step explanation:
First of all u need to let watermelon nd apples x&y. so after that what u have to do is substract the equations.
Find the amount to which $800 will grow under each of these conditions: a. 8% compounded annually for 9 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ b. 8% compounded semiannually for 9 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ C. 8% compounded quarterly for 9 years. Do not round intermediate calculations. Round your answer to the nearest cent. d. 8% compounded monthly for 9 years. Do not round intermediate calculations. Round your answer to the nearest cent. $ e. 8% compounded daily for 9 years. Assume 365-days in a year. Do not round intermediate calculations. Round your answer to the nearest cent. $ f. Why does the observed pattern of FVs occur?
Answers
The amount to which $800 will grow under each of the given conditions increases as the compounding period decreases.
The amount to which $800 will grow under each of these conditions is as follows:a) 8% compounded annually for 9 years
When compounded annually for 9 years at 8%, the formula is: Amount = Principal x [(1 + rate/n)^(n*t)]
Where: Principal = $800 Rate = 8% Time = 9 years
Compounded annually = n = 1 Amount = $1,447.91 (rounded to the nearest cent)
b) 8% compounded semiannually for 9 years Compounded semiannually for 9 years at 8%, the formula is:
Amount = Principal x [(1 + rate/n)^(n*t)]
Where: Principal = $800 Rate = 8% Time = 9 years Compounded semiannually = n = 2 Amount = $1,471.16 (rounded to the nearest cent)
c) 8% compounded quarterly for 9 years Compounded quarterly for 9 years at 8%, the formula is:
Amount = Principal x [(1 + rate/n)^(n*t)]
Where: Principal = $800 Rate = 8% Time = 9 years Compounded quarterly = n = 4 Amount = $1,491.03 (rounded to the nearest cent)
d) 8% compounded monthly for 9 years Compounded monthly for 9 years at 8%, the formula is: Amount = Principal x [(1 + rate/n)^(n*t)]
Where: Principal = $800 Rate = 8% Time = 9 years Compounded monthly = n = 12 Amount = $1,505.91 (rounded to the nearest cent)
e) 8% compounded daily for 9 years Compounded daily for 9 years at 8%, the formula is:
Amount = Principal x [(1 + rate/n)^(n*t)]
Where: Principal = $800 Rate = 8% Time = 9 years Compounded daily = n = 365Amount = $1,511.74 (rounded to the nearest cent)
The observed pattern of FVs (future values) occurs due to compounding. Compounding is the process of earning interest not only on the principal amount invested but also on the interest earned from the principal. This results in an increase in the interest earned and the future value of the investment. The more frequent the compounding, the higher the future value of the investment. Hence, the amount to which $800 will grow under each of the given conditions increases as the compounding period decreases.
To learn more about compound follow the given link
https://brainly.com/question/14782984
#SPJ11
7) If 3 and a half pounds of meat cost 14$, what is the cost of one pound of meat?
Answers
A fair number cube is rolled. What are the odds in favor of rolling a 2?
Answers
A number cube has six numbers, from 1 to 6, with one number on each face.
Since the number cube is fair, the probability of each number being rolled is the same.
So, to find the probability of one specific number being rolled, we just need to divide 1 by the total amount of numbers:
\(P=\frac{1}{6}\)The probability of rolling a 2 is the same as rolling any other number, therefore the probability is 1/6.
The milligrams of aspirin in a person's body is given by the equation a = 500 ⋅ (3/4)t , where t is the number of hours since the patient took the medicine. How much aspirin will be in the person's body after two hours?
Answers
Answer:
a = 281.25 mg after two hours
Step-by-step explanation:
Here, we want to get the amount of aspirin that will be present after two hours
what we simply do here is to substitute 2 for t
Thus, we have it that;
a = 500(3/4)^2
a = 500•(0.75)^2
a = 281.25 mg
Select all of the statements that can be used to determine that two events are independent.
Answers
The statements that can be used to determine independent events are given as follows:
P(A and B) = P(A) x P(B).P(A or B) = P(A) x P(B) - P(A and B).P(A|B) = P(A).What are independent events?If two events are independent, the multiplication of the probabilities of each event is equals to the probability of both events, that is:
P(A and B) = P(A) x P(B).
Which means that the first statement is correct.
The conditional probability formula is given as follows:
P(B|A) = P(A and B)/P(A).
However, for independent events, we know that:
P(A and B) = P(A) x P(B).
Hence:
P(B|A) = P(A) x P(B)/P(A).
P(B|A) = P(B).
The same is true for the opposite, meaning that:
P(A|B) = P(A).
Meaning that the last statement is correct.
The Venn probability P(A or B) = P(A) x P(B) - P(A and B) can also be used to determine if the events are independent, when it assumes a value of zero.
More can be learned about independent events at https://brainly.com/question/7965468
#SPJ1
Can anyone help me with this I’ll give brainliest
Answers
Answer:
c is the answer
Step-by-step explanation:
Answer:
c is the correct answer :)
HELP PLEASE
will give brainliest to correct answer
Answers
Answer:
use ph0t03ath its answers every math question
ap calculus question, steps and explain please.
Answers
\(\lim_{x \to \\pi } \frac{cosx + sin(2x)+1} {x^2 -\pi^2}\) of the Correct option is (B) i.e., 1/\(\pi\)
Given:
\(\lim_{x \to \\pi } \frac{cosx + sin(2x)+1} {x^2 -\pi^2}\)
To solve the above function:
Now, According to the question:
\(\lim_{x \to \\pi } \frac{cosx + sin(2x)+1} {x^2 -\pi^2}\)
Differentiate with respect to x above function:
\(\lim_{x \to \\pi } \frac{-sinx + 2cosx} {2x}\)
Substitute the value of limit in x tends \(\pi\), it means x = \(\pi\)
= \(\frac{2cos\pi - sin\pi }{2\pi }\)
= 2/ \(2\pi\)
= 1/\(\pi\)
Hence, The Correct option is (B) i.e., 1/\(\pi\)
Learn more about Differentiation at:
https://brainly.com/question/24898810
#SPJ1
4a−3+6/5≥6−(4a/5−1)
need help please
Answers
Answer:
a is greater or = to 3
Step-by-step explanation:
A teacher has a container of paper clips. She will randomly select one paper clip from the container.
• The container has 8 pink paper clips.
• The container has 14 purple paper clips.
• The container has 12 yellow paper clips.
• The container has 16 purple paper clips.
Which statement is true?
A. The probability of selecting a purple paper clip is 3/4 and the probability of selecting a paper clip that is not purple is 1/4.
B. The probability of selecting a purple paper clip is 1/4 and the probability of selecting a paper clip that is not purple is 3/4.
C. The probability of selecting a purple paper clip is 18/25 and the probability of selecting a paper clip that is not purple is 7/25.
D. The probability of selecting a purple paper clip is 7/25 and probability of selecting a paper clip that is not purple is 18/25.
Answers
Answer:
D
Step-by-step explanation:
There are 50 clips and 14 of them are purple.
Probability of picking purple is 14/50 or 7/25. Probability of picking non purple is 1 - 7/25 = 18/25
The probability of selecting abr clip is 7/25 and probability of selecting a paper clip that is not purple is 18/25.
What is probability?Probability is the likelihood or chance that an event will occur. Mathematically:
Probability = n(E)/n(S)
n(E) is the expected outcome
n(S) is the total outcome
If a container contains 8 pink paper clips, 14 purple, 12 yellow and 16 purple clips, the total number of clips is 50
Pr(paper clip) = 8/50 = 4/25
Pr(purple clip) = 14/50 = 7/25
Pr(yellow clip) = 12/50 = 6/25
Pr(purple paper clip) = 16/50 = 8/25
The probability of selecting abr clip is 7/25 and probability of selecting a paper clip that is not purple is 18/25.
learn more on probability here: https://brainly.com/question/24756209
What is the equation of the line that passes through the point (-4,1) and has a slope -5/4?
Answers
Answer:
y = -5/4x + 6
Step-by-step explanation:
y = -5/4x + b
1 = -5/4(-4) + b
1 = -5 + b
b = 6
y = -5/4x + 6
what is the answer to
45 = 5t + 45
Answers
Answer:
t=0
Step-by-step explanation:
\(45=5t+45\\\\45-45=5t+45-45\\\\0=5t\\\\t=0\)
Answer:
5t=0
Step-by-step explanation:
in the rule when the number is translated from beginning of the = end the sign is changed from + to - applying the same it says 5t=0
The chart below shows the cost of the three different-sized boxes of chicken nuggets that are available at The Chicken Shack.
Box Sizes and Costs
of Chicken Nuggets
Box Size Number of
Nuggets in Box Cost of Box
(dollars)
Small 5 1.25
Medium 9 2.07
Large 15 3.15
Considering all three sizes, what is the least cost per nugget?
Select one:
0.15
0.21
0.23
0.25
Answers
Answer:0.21 the large box
Step-by-step explanation: find unit rate for each box.
$1.25/5=$.25 - small
$2.07/9=$.23 - medium
$3.15/15=$.21 - large
So, by plugging in 1.25/5, 2.07/9, and 3.15/15, I got 0.25, 0.23, and 0.21, respectively.
So if you're trying to find the least amount cost per nugget, then 0.21 from the large box option would be your answer.
In an atom, electrons have a negative charge and protons have a positive charge. One negative and
one positive cancel each other, just like zero pairs. An atom has 354 electrons and 139 protons.
What is the amount and type of charge?
Answers
Answer:
The charge is negative and the amount is 215
Step-by-step explanation:
Electrons are negative
-354
Protons are positive
+139
-354+139
-215
So
Electrons=-354Protons=+139Net charge
354-139-215Negative charge and the amount is 215
what is the final transformation in the composition of transformations?
Answers
Answer:
A composition of transformations is a combination of two or more transformations, each performed on the previous image. A composition of reflections over parallel lines has the same effect as a translation (twice the distance between the parallel lines).
Step-by-step explanation:
What are the coordinates of point A? On a coordinate plane, point A is 4 units to the left and 3 units down. (–4, 3) (3, –4) (–3, –4) (–4, –3)
Answers
The correct answer is option D which is the coordinates are (–4, –3 ).
What is coordinate geometry?A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.
Given that:-
On a coordinate plane, point A is 4 units to the left and 3 units down.From the given data we will plot the points on the x-y axis the points are as follows:-
A is 4 units to the left : ( -4 ) 3 units down :- ( -3 )The graph of the point is also attached with the answer.
Therefore the correct answer is option D which is the coordinates are (–4, –3 ).
To know more about Coordinate geometry follow
brainly.com/question/18269861
#SPJ1
When the scale factor is less than 1 The new image is?
Answers
The new image would be smaller in sample size than the original image.
For example, if the scale factor is 0.5, the new image will be half the size of the original image. To determine the exact size of the new image, the scale factor is multiplied with the width and height of the original image. For example, if the original image is 200 x 100 pixels, and the scale factor is 0.5, the new image will be
(200 x 0.5) = 100 x (100 x 0.5)
= 50 pixels.
The same concept applies when the scale factor is a decimal. For example, if the scale factor is 0.75, the new image will be three-quarters the size of the original image. In this case, the new image would be
(200 x 0.75) = 150 x (100 x 0.75)
= 75 pixels.
In summary, when the scale factor is less than 1, the new image will always be smaller than the original image, depending on the scale factor. The exact size of the new image can be determined by multiplying the width and height of the original image with the scale factor.
Learn more about sample size here
https://brainly.com/question/25894237
#SPJ4
.If the average value of the function f on the interval 2≤x≤6 is 3, what is the value of ∫ 6 2 (5f(x)+2)dx ?
(A) 17
(B) 23
(C) 62 (D) 68
Answers
The correct option is D, the integral is equal to 68.
How to find the value of the integral?We can decompose the given integral in its parts, we will rewrite it as follows:
\(\int\limits^6_2 {(5f(x) + 2)} \, dx = \int\limits^6_2 {(5f(x))}dx \ + \int\limits^6_2 {( 2)} dx\)
The first integral will be equal to 5 times the average value of the function in that interval times the length of the interval, so we have:
5*3*(6 - 2) = 15*4 = 60
The second integral will give two times the difference between the values
2*(6- 2) = 2*4 =8
Adding that 60 + 8 = 68
The correct option is D.
Learn more about integrals:
https://brainly.com/question/22008756
#SPJ1
Erik had Y cards. He gave 13 of them to Andrew. Then Erik’s mom bought him twice as many cards as he had at the start. How many cards did Erik have in the beginning if he has the total of 47 cards now?
Answers
Answer:
20
Step-by-step explanation:
\((Y-13)+2Y=47\)
\(Y-13+2Y=47\)
\(3Y-13=47\)
\(3Y=60\)
\(Y=20\)
3. Which line is horizontal?
A. y = 2
B. y = 2x
C. y = -2x
D. y = x
Answers
Answer: y = 2
Explanation: When the equation of any line reads y = a number, its graph will always be a horizontal line.
So, y = 2 would be a horizontal or flat line.
please please help me with this, i’ll be waiting
Answers
Answer:
I think you have it
Step-by-step explanation:
It's not -4.44, and if it was -3.14 it would be closer to the -3 tick on the line. With the negative square root of 17 being 4.12 it's not that either. -11/3 is 3.6666667 or something along those lines so it would be closer to the -4 tick on the line, so I'm pretty sure you got it.
Given f ( x ) = 1 x + 12 , find the average rate of change of f ( x ) on the interval [ 9 , 9 + h ] . your answer will be an expression involving h
Answers
Given,
f(x) = 1x + 12
expression to be in form of h
To find on the interval: [9, 9 + h]
∵ Average rate of change of f(x) on interval (a,b) is
A = f(b) - f(a) / b - a
⇒ f(9) = 1 x 9 + 12 = 21
⇒ f(9 + h) = 9 +h + 12 = 21 + h
⇒ f(b) - f(a) = 21 + h - 21 = h
⇒ (b-a) = 9 + h - 9 = h
∴ Average rate of change = h / h
Know more about Average rate of change here https://brainly.com/question/23715190
#SPJ4
Drag the tiles to the correct boxes to complete the pairs.
Match each cross section with its perimeter.
a cross section parallel to the base of a
right rectangular prism that is 10 inches
long, 3 inches wide, and 14 inches high
a cross section perpendicular to the
base and passing through the
diagonals of the base and opposite
face of a right rectangular prism that is
5 inches long, 12 inches wide, and 4
inches high and measures 13 inches
along the diagonal of the base
Perimeter
a cross section perpendicular to the
base of a cube with 12 inch edges
a cross section parallel to the base of a
cube whose edges are 16 inches each
Cross Section
Answers
The summary of the items matched with their perimeters are given as follows -
64 inches - cross-section, cube, 16 inches
26 inches - right rectangular prism, 10x 3 x 14 inches
48 inches - cube with 12-inches edges
34 inches - rectangular prism, 5x12x4 diagonal of 13 inches.
What is the explanation for the above?right rectangular prism, 10x 3 x 14 inches
The cross-section is parallel to the base, so it cuts the height, maintaining the length and width. So, we have:
P = 10 + 3 + 10 + 3 = 26 inches
Cube with 12-inches edges
This time, the cross-section is done perpendicular to the base, but in this case it doesn't matter since it's a cube... so it could be done in any direction and it wouldn't change the result.
P = 12 + 12+ 12 + 12
= 48 inches
Rectangular prism, 5x12x4 diagonal of 13 inches
The cut is done perpendicular to the base, but along a diagonal of 13 inches, so the height is preserved, and the diagonal length becomes the new side other than height.
P = 13 + 4 + 13 + 4
= 34 inches
Cross-section, cube, 16 inches
Again, the cross-section is done parallel to the base, but in this case it doesn't matter since it's a cube... so it could be done in any direction and it wouldn't change the result.
P = 16 + 16 + 16 + 16
= 64 inches.
Learn more about perimeter at:
https://brainly.com/question/19819849
#SPJ1
Full Question:
Although part of your question is missing, you might be referring to this full question:
See the attached image.
In a class test.containing 15 questions 4 marks are given for every correct answer and -2 marks are given for every wrong answer james attempt all the question but only 9 of his answers correct .What is his total score
Answers
Answer:
48
Step-by-step explanation:
(9*4) + (6*2)
36 + 12
= 48
Step-by-step explanation:
no:questions=15
correct questions =9
marks for correct answers =9×4=36
incorrect answers=6
marks for incorrect answers =(-2)×6=(-12)
full marks =36 - (-12)
=36 + 12
=48
evaluate 5+2k² when k=4.
Answers
\(\huge\text{Hey there!}\)
\(\huge\boxed{\mathsf{5 + 2k^2}}\\\\\huge\boxed{\mathsf{\rightarrow 5 + 2(4)^2}}\\\\\huge\boxed{\mathsf{\rightarrow 5 + 2(\bf 4\times4)}}\\\\\huge\boxed{\mathsf{\rightarrow 5 + 2(\bf 16)}}\\\\\huge\boxed{\mathsf{\rightarrow 5 + \bf 32}}\\\\\huge\boxed{\mathsf{\rightarrow \bf 37}}\\\\\\\huge\text{Therefore, your answer is: \boxed{\textsf{37}}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
~\(\frak{Amphitrite1040:}\)solve it...........!!!!
Answers
Answer:
I think it is correct and is 1 and 2
Step-by-step explanation:
5×4^(x+1)-16^x=64
0=64+16^x-5×4¹×4^x
0=(4^x)²-2×4^x×10+10²-10²+64
0=(4^x-10)²-36
(4^x-10)²=36
4^x-10=√36
4^x=+-6+10
when positive
4^x=4²
:.x=2
when negative
4^x=4
:.x=1
:.x=1,2 answer.
Eric will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $48 and costs an additional $0.09 per mile driven. Thesecond plan has an initial fee of $57 and costs an additional $0.07 per mile driven.For what amount of driving do the two plans cost thesame?I milesWhat is the cost when the two plans cost the same?
Answers
• ,Plan A :
Initial fee = 48
Cost per mile = 0.09
Cost A = 48 + 0.09x
Where x is the number of miles driven.
• Plan B
Initial fee = 57
Cost per mile = 0.07
Cost B = 57 + 0.07x
If both costs are the same:
Cost A = Cost B
48+0.09x = 57+0.07x
Solve for x
0.09x - 0.07x = 57 - 48
0.02x = 9
x = 9 / 0.02x
x= 450
Number of miles = 450
Cost = 48+0.09 (450) = $88.5
Find the volume of a right circular cone that has a height of 10.7 in and a base with a diameter of 8.1 in. Round your answer to the nearest tenth of a cubic inch.
Answers
Answer:
\( V = \pi r^2 h\)
And for this case the value for the height is \( h = 10.7 in\) the diameter is provided \( D = 2r = 8.1 in\) so then the radius is given by:
\( r = \frac{D}{2}=\frac{8.1 in}{2}= 4.05 in\)
Then we can find the volume with the first formula and replacing we got:
\( V = \pi (4.05in)^2 (10.7 in)= 551.4 in ^3\)
The final answer for this case would be 551.4 cubic inches
Step-by-step explanation:
The volume for a right circular cone is given by this formula:
\( V = \pi r^2 h\)
And for this case the value for the height is \( h = 10.7 in\) the diameter is provided \( D = 2r = 8.1 in\) so then the radius is given by:
\( r = \frac{D}{2}=\frac{8.1 in}{2}= 4.05 in\)
Then we can find the volume with the first formula and replacing we got:
\( V = \pi (4.05in)^2 (10.7 in)= 551.4 in ^3\)
The final answer for this case would be 551.4 cubic inches
Answer V:183.8^3 previous answer is wrong