Which expression could represent the identity property of addition?
A) −5 + 0
B) −5 − 5
C) −5 x 0
D) −5 + 5
Answers
Answer:
d -5 + 5
Step-by-step explanation:
-5 + 0 is an expression representing the identity property of addition.
What is Identity property of addition?The identity property of addition says that the sum of 0 and any number is that number.
Given that expressions,
Here (-5 + 0) is representing the identity property of addition.
Hence, the correct option is A) (-5 + 0)
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Related Questions
Add the negatives.
+4 - 3 - 4 + 2 - 1
I just dont get it
Answers
Answer: -2
Step-by-step explanation:
since there are no multiplication you can simply go from left to right doing simple math. You start from a +4 that would be a positive 4, you subtract -3 so you get +1 then you subtract -4 and the result is -3 (negative 3) so now you are currently working with numbers lower than 0, adding +2 will make it -1 and finally you subtract for -1 and that will make it -2. Hope it's what u needed
Is 3x+0y a monomial, binomial or trinomial?
Answers
Answer:
trinomial
Step-by-step explanation:
it has 3 terms. an expression with three terms is a trinomial.
(mark as brainliest)
Answer:
the answer would be monomial
because there is one term it is 3x
0y is not term
please answer quickly
Answers
Answer:
37.5
Step-by-step explanation:
cosФ = \(\frac{A}{H}\)
cos(33°35') = \(\frac{m}{45}\)
m = 45 × cos(33°35')
m = 37.5 (1d.p.)
please help me :)_00)
Answers
Answer:
Q6. No
Step-by-step explanation:
Not every side is scaled up by the same factor
:)
(not sure what the second picture is)
HIHIHIHIHIHIHHIIHIIIIIIIIIIIIIIIIIIIIIIIIIIIIIHHHHHHHHHHHHHHHHHHH
Answers
Answer:
32%
Step-by-step explanation:
8 out of the 25 squares are shaded.
divide.
Answer and Step-by-step explanation:
The answer will first come from a fraction with a denominator of 25 (because there are 25 squares in total). The numerator would have the number 8 because there are 8 shaded squares.
\(\frac{8}{25}\)
You can multiply by 4/4 to get the number out of 100, making it easier to find the percentage.
We get the number to be \(\frac{32}{100}\)
Multiply 0.32 by 100 to get the percent.
The percent is 32%, which is the answer.
#teamtrees #PAW (Plant And Water)
I'M SORRY WHAT IS THY ANSEWR?
Answers
Because there’s 36 possible solutions between the 2 dice and only one of those could get you a sum of 2. So 1 out of 36 or 1/36.
Sky High TV is a satellite television provider. They charged about a month. The first month of service costs 85.45. After the second month, the total cost is $148.65. After the third month, the total cost is $211.85. An equation in the form of y = c + d(x - 1) to represent the situation. Define the variables. ____________________________________________________________________________________________________________________________________________________________________________________________________________
Answers
Answer: y = 63.20x + 22.25, where x is the number of months and y is the total cost.
Step-by-step explanation:
Let's start by finding the value of the constant term c. We know that the first month of service costs $85.45, so we have:
y = c + d(x – 1)
85.45 = c + d(1 – 1)
85.45 = c
Now we need to find the value of the slope d. We can use the information from the second and third months:
y = c + d(x – 1)
148.65 = 85.45 + d(2 – 1)
63.20 = d
y = c + d(x – 1)
211.85 = 85.45 + d(3 – 1)
126.40 = 2d
Simplifying the second equation, we get:
63.20 = d
Substituting the values of c and d into the equation, we get:
y = 85.45 + 63.20(x – 1)
y = 63.20x + 22.25
Therefore, the equation that represents this situation is:
y = 63.20x + 22.25, where x is the number of months and y is the total cost.
I hope it helps + it was my cousin idea
I really need help like ASAP if possible! Giving 50 points!
Answers
Answer:
13. $18.60
14. $15.79
Step-by-step explanation:
13.
Jeff starts off with $46.18
He then gives half of his money to his brother (so divide starting money by 2)
46.18 / 2 = 23.09
He now has $23.09
He then buys two donuts for $0.75 each ( 0.75 * 2 = 1.50 ) and a cup of coffee for $2.99 ( so he spent a total of 4.49 ) so we then subtract 4.49 from 23.09
23.09 - 4.49 = 18.6
He had $18.60 left over
14. 5 friends split a 65.20 bill at a restaurant
65.20 / 5 = 13.04
they also each left a $2.75 tip
13.04 + 2.75 = 15.79
They each payed $15.79
Answer: Jeff has $18 dollars and 6 cents or $18.6
Step-by-step explanation:
Half of $46.18 is $23.09. Then if he bought two donuts and each donut cost $0.75 then you plus $0.75 + $0.75 = 1.5. You then minus $ 1.5 from your current $23.09 dollars, which will equal $21.59. You have to minus the coffe amount which will is $2.99 . You minus $21.59 - $2.99 =$18.6.
Simplify: 9y + 2xy -2 -4y +4xy +2
Answers
Steps:
Let's simplify step-by-step.
9y+2xy−2−4y+4xy+2
=9y+2xy+−2+−4y+4xy+2
Combine Like Terms:
=9y+2xy+−2+−4y+4xy+2
=(2xy+4xy)+(9y+−4y)+(−2+2)
=6xy+5y
Description:
The first step is to simplify the equation step by step and to simplify an equation you can first multiplying the factors and use the exponent rules to remove the parentheses. After that you need to combine it a terms. Then you will get your answer.
For more steps see the attachment.
Answer: =6xy+5y
Hope this helps.
Louise measured the perimeter of her rectangular scrapbook to be 148 cm. If the scrapbook is 38 cm wide, how long is the scrapbook?
Answers
Answer:
36cm
Step-by-step explanation:
38 × 2 = 76
148 - 86 = 72
72/2 = 36
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
Carlo said a population can have more than one sample associated with it. Do you agree or disgree with his statement? Justify your answer.
Answers
you bought a magazine for $5 and four erasers. you spent a total of $25. how much did the eraser cost?
Answers
Answer:
1 eraser = $54 erasers = $20Step-by-step explanation:
Given that,
→ Magazine = $5
→ Total cost = $25
→ 1 eraser = x
The equation will be,
→ 4x + 5 = 25
Now the value of x will be,
→ 4x + 5 = 25
→ 4x = 25 - 5
→ x = 20/4
→ [ x = $5 ]
Hence, value of x is $5.
Total= $25- $5 magazine leaves you with $20. You bought 4 erasers so you do 20/4 which is $5
Please help me I'm desperate
Answers
Answer:
it should be option 2
Step-by-step explanation:
Michael has a bag of marbles. The frequency of selecting each color is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5 Based on the given frequency, determine the experimental probability of selecting a black marble. 0.27 0.33 0.40 0.60
help asap if answer is correct and provided explanation i will give brainiest.
Answers
Reason:
6 black out of 4+6+5 = 15 total
6/15 = 0.40 is the experimental probability of selecting black.
Side note: The term "empirical probability" is the same as "experimental probability".
The experimental probability of selecting a black marble will be 0.40. The correct option is C.
What is probability?Probability is a number that indicates the likelihood of an event occurring. Probability is defined as the ratio of favourable outcomes to all outcomes.
Probability = Number of favourable outcomes / Number of samples
Given that Michael has a bag of marbles. The frequency of selecting each colour is recorded in the table below. Outcome Frequency Green 4 Black 6 Orange 5.
Number of favourable outcomes = 6
Number of samples = 4+6+5 = 15
Probability = Number of favourable outcomes / Number of samples
Probability = 6 / 15
Probability = 0.40
Therefore, the probability will be 0.40.
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3.47x 10 to the power of 4
Answers
You exercise for 34 of an hour. You jump rope for 13 of that time. In simplest form, what fraction of the hour do you spend jumping rope?
Answers
Answer:
You spend 1/4 of the hour jumping rope. The question states that 1/3 of 3/4 of an hour is spent jumping rope.
Step-by-step explanation:
Answer: You spend 1/4 of the hour jumping rope.
Step-by-step explanation:
The question states that 1/3 of 3/4 of an hour is spend jumping rope
To find this, multiply 3/4 by 1/3
3/4 times 1/3 = 3/12 = 1/4
So one third of 3/4 is 1/4
NEED HELP ASAP Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle was dilated using a scale factor of 1/2 Which rule represents the dilation applied to triangle J K L to create its image, triangle J′ K′ L′ ?
Answers
Answer:
Step-by-step explanation:
C
Pls help me in math, I need this tomorrow, thx :)
Answers
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
Two sets of data, set X and set Y are given
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
Therefore, both the data sets has same range and mean.
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
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Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
We know
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
also
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
(PLS HELP MY TEACHER WANTS ME TO PASS THIS!!)
Which relation is NOT a function?
A. {(0, 0), (1, 1), (1, 2)}
B. {(0, 1), (2, 2), (3, 1)}
C. {(1, 0), (3, 3), (0, 1), (2, 3)}
D. {(3, 8), (6, 11), (8, 3), (11, 6)}
Answers
Answer:
A
Step-by-step explanation:
Because 1 has more than one output, first they are putting 1 and 1 together, next they are putting it with 2, 1 has more than one output.
Answer:A has 2 pairs of "1" x-coordinates so it is NOT a function.
Step-by-step explanation:
Classify the pair of angles 55 35
Answers
Answer:
A supplementary adds up to 180 degrees. It would be complementary because it adds up to 90 degrees.
Step-by-step explanation:
Answer:
A supplementary adds up to 180 degrees. It would be complementary because it adds up to 90 degrees.
Sorry had to do this for points ^ - ^
At North Community College, there are twice as many sophomores as first year students. The number of juniors is 40 more than the number of first year students and the number of seniors is 50 fewer than the number of sophomores. There are 350 students at North Community College. How many of these students are first year students?
A. 60
B. 65
C. 72
D.120
Answers
Answer:
C
Step-by-step explanation:
I hoped this helped have a great day
There are 7 apples on a plate. When these apples are distributed to 7 children, one for each, an apple snows on the plate. How can this be?
Answers
Find the arc length of the partial circle.
Either enter an exact answer in terms of π or use 3.14 π and enter your answer as a decimal.
Answers
Answer:
1/2 pi
Step-by-step explanation:
This is 1/4 of a circle
Find the circumference and multiply by 1/4
1/4 C
1/4 ( 2*pi*r) where r is the radius
The radius is 1
1/2 pi*1
1/2 pi
Answer:
Step-by-step explanation:
A full circle has a circumference of 2*pi * r
r = 1
so Full Circle = 2 * PI
1/4 Circle = 2*pi / 4 = 1/2 pi
The length of the arc length = 1/2 pi
Just in case you prefer the more numerical answer, 1/2 * 3.14 = 1.57
Please solve this problem! 2x2-2-4+7= ?
Answers
Answer:
5
Step-by-step explanation:
2x2=4
4-2=2
2-4=-2
-2+7=5
Answer:
5
Step-by-step explanation:
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answers
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
Danielle earns an 8.25% commission on everything she sells at the electronics store where she works. She also earns a base salary of $675 per week. How much did she earn last week if she sold $4,200 in electronics merchandise? Round your intermediate calculations and answer to the nearest cent.
Answers
Answer:
$12381.82
Step-by-step explanation:
can please have help with dis
Answers
Answer:
the answer for this question is 18 because first of all remember to use the rule 4x-2 to find the last one and you replace it with 5 so 4(5)-2= 20-2=18 so 18 is the correct for the last one and have a great day.
4(3)-2= 12-2=10 for the first one if you wanted to kind of knowing that.
Step-by-step explanation:
Simply because you do 4xinput-2
The first one has been done 4x3-2=10
Just change 3 to 5
Explain how this problem gets to it’s answer.
Answers
Answer:SORRY I TRIED I JUST DONT UNDERSTAND IT :(
Step-by-step explanation:
simplify -6/5 divided by 2 2/5
Answers
Answer:
0.24or -1/2
Step-by-step explanation:
The simplified fraction of -6/5 divided by 2 2/5 is -1/2.
To simplify the expression -6/5 divided by 2 2/5.
First, let's convert the mixed numbers to improper fractions:
2 2/5 = (2 x 5 + 2) / 5
= 12/5
Now, we can rewrite the expression as:
-6/5 ÷ 12/5
When dividing fractions, we can multiply by the reciprocal of the second fraction. So, we have:
= -6/5 x 5/12
= -6/1 x 1/12
Multiply the numerators and denominators:
= (-6 x 1) / (1 x 12)
= -6/12
= -1/2
Therefore, the simplified fraction of -6/5 divided by 2 2/5 is -1/2.
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