Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
Mean score (m) = 80
Standard deviation = 4
Acore within one standard deviation of the mean:
Zscore = ± 1
Using the relation:
Zscore = (x - mean) / standard deviation
Where x = score
±1 = (x - 80) / 4
4 = x - 80
±4 + 80 = x
x = - 4 + 80 = 76
x = 4 + 80 = 84
Scire with 1 standard deviation of the mean :
76 = 1 standard deviation below
84 = 1 standard deviation above
What kind of angle is this?
Answer:
Obtuse
Step-by-step explanation:
Since the angle is greater than 90°, the angle is obtuse.
Order the expressions by choosing , or =
I need help showing work please help
Answer:
It’s just subtraction
Step-by-step explanation:
When a square is in the middle its 90 so just subtract the other number by 90
Answer:
For 8: 25°For 10: 49°Step-by-step explanation:
For 8:
90 - 65 = 25°For 10:
90 - 41 = 49°I hope this helps!
which of these statements best compares the pair of line segments with the vertex
Answer:
Line segments have two endpoints and a vertex is a common endpoint where two line segments meet.
Step-by-step explanation:
A line segment is defined as a portion of a line that has two endpoints.
A vertex is defined as the common endpoint of two or more rays or line segments.
How do you write 0.0204 in scientific notation?
Match the number with its opposite.
Match Term Definition
9.2 A) 1.4
−2.9 B) 2.9
−1.4 C) −4.1
4.1 D) −9.2
Answer:
9.2 = -9.2
-2.9 = 2.9
-1.4 = 1.4
4.1 = -4.1
Step-by-step explanation:
The opposite of a positive number is a negative number. The opposite of a negative number is a positive number.
Simple question but how do I figure out if an equation is discrete or continuous? And would this be discrete or continuous: A paper airplane was thrown from the top of a 60-foot building at a rate of 1.5 feet per second. I'll mark brainliest! Thx. :)
Answer:
1: The graph is in the attached figure.
2. It takes the paper airplane 46 seconds to get to the ground.
Step-by-step explanation:
what is 32% of 60 as a decimal.
Answer:
19.2
Step-by-step explanation:
32% as a decimal is 0.32.
60x0.32 is 19.2.
please help as soon as you can
Answer:
FOR NUMBER 1
1. angleAED = 7x-40 and angleBEC= 3x + 40; given
2. 7x-40=3x+40; vertical angles are congruent
3. 4x-40=40; addition property of equality
4. 4x=80; addition property of equality
5. x = 20; division property of equaliy
FOR NUMBER 2
1. angle CED=2X+30 and angleAED=5x-46; given
2. Angle aed and angle ced are supplementary; assumed from diagram
3. 2x+30+5x-46=180; supplementary angles add upto 180
4. 7x-16=180;substitution (simplification of like terms)
5. 7x=196; addition property of equality
6. X=28; division property of equality
FOR NUMBER 3
1. angleBEC=4x-30 and angle BEA =2x ; given
2. angle bec and angle bea are supplementary; assumed from diagram
3. bec+bea = 180; definition of supplementary angles
4. 4x-30+2x=180; substitution
5. 6x=210; addition property of equality
6. X = 35; division property of equality
Step-by-step explanation:
john rents a car $85 a week plus $.26 per mile
Answer:
That's cool that john rented a car but please elaborate on your question or re-read it
Thank you have a nice day !!
Step-by-step explanation:
Answer: John pays $111 a week
Step-by-step explanation:
Solve |6x+ 72| = 12 x Identify the solution and an extraneous solution.
solution x=12
extraneous solution x=-4
The solution of the absolute value equation is x = 12, and the extraneous solution is x = -4
How to solve the absolute value equation?Here we have the equation:
|6x + 72| = 12*x
Then we can rewrite this in two ways as:
6x + 72 = -12*x
6x + 72 = 12x
We can find two solutions for x. For the first one:
6x + 12x + 72 = 0
18x = -72
x = -72/18 = -4
For the other equation we get:
6x - 12x + 72 = 0
6x = 72
x = 72/6 = 12
Which is the extraneous solution?It is x = -4, because we will get:
|6*-4 + 72| = 12*-4
48 = -48
If you want to learn more about absolute values:
https://brainly.com/question/1782403
#SPJ2
Which shows a rational number plotted correctly on a number line?
7.86÷0.2
Also, I need it to have step by step explanation.
Answer:
3.43
Step-by-step explanation:
you divide by 2 and you can also did 7 by 2 3.5 and then just look around and do it in your head sorry if I made it confusing
You pay 14.82 for 1.5 pounds of ham. You buy 2.25 pounds of roast beef for 12.40 per pound.
a. How much less does ham cost per round than roast beef?
b. How much more do you spend on roast beef than on ham?
Can someone solve this real quick?
Please include the steps!
3 (2n + 4) - 2 = 1 +5 (n + 1)
Answer:
n = -4
Step-by-step explanation:
Start off by remembering PEMDAS which first P means parenthesis so use distributive property to multiply the 2n + 4 by the 3 in front of it and do the same to the n + 1 and multiply that by the 5 in front which turns your question into 6n+12-2=1+5n+5 so now i'd combine like terms on both sides which now gives you 6n + 10 = 5n +6 so now to get the n on one side i'm going to sub tact it from both sides doesnt matter which one you do but to make it easier i'd subtract the 5n from the 6n because the whole point is to solve for n and by doing that you'd already be getting it by itself. so now the question should look like n + 10 = 6 so subtract 10 from both sides to isolate the n and you get your answer n = -4
Answer:
N = - 4
Step-by-step explanation:
3 (2n+4)-2=1+5(n+1
distribute 3 through the paretheses
6n+12-2=1+5n
add the numbers
6n+10=6+5n
move constant to the right-hand side and change its sign
6n-5n=6-10
calculate the difference
n = - 4
The table shows the battery lives, in hours, of ten Brand A batteries and ten Brand B batteries.
Which would be the best measure of variability to use to compare the data?
Only Brand A data is symmetric, so standard deviation is the best measure to compare variability.
Only Brand B data is symmetric, so the median is the best measure to compare variability.
Both distributions are symmetric, so the mean is the best measure to compare variability.
Both distributions are skewed left, so the interquartile range is the best measure to compare variability.
Answer: D is the answer i think
Step-by-step explanation:
Answer:
D: Both distributions are skewed left, so the interquartile range is the best measure to compare variability.
Step-by-step explanation:
edg2020
Which questions are good examples of a statistical question? Check all that apply.
How many pets do you have?
Do you think a pet is a lot of work?
Do you like having a pet?
How many times a day do you feed your pet?
Do you feed your pet at night?
Answer:
1 & 4
Step-by-step explanation:
Sarah, Lacey, and Mark stuffed envelopes with invitations for parents to an open house.
• Sarah stuffed 10 more envelopes than Lacey.
• Mark stuffed 3 less than twice as many envelopes as Lacey.
• Altogether they stuffed 503 envelopes.
If x represents the number of envelopes that Lacey stuffed, which equation BEST represents this situation?
x+10+2x−3=503
x+10x+3−2x=503
x+x+10+2x−3=503
x+x+10+3−2x=503
Answer: x+x+10+2x−3=503
Step-by-step explanation:
Let's define 3 variables:
S = # of stuffed envelopes by Sarah.
X = # of stuffed envelopes by Lacey.
M = # of stuffed envelopes by Mark.
S = 10 + X.
M = 2*X - 3.
X + S + M = 503.
Now we can replace the first two equations into the third equation:
X + (10 + X) + (2*X - 3) = 503.
Then the correct option is: x+x+10+2x−3=503
Now we can also solve the equation, just because it is fun:
X + 10 + X + 2*X - 3 = 503
4*X + 7 = 503
4*X = 503 - 7 = 496
X = 496/4 = 124
Lacey stuffed 124 envelopes.
Three consecutive odd integers have a sum of 111. What is the first of the odd
integers?
A. 31
B. 33
C. 35
D. 37
Need help on this will give brainelist
Answer:
A. Only points C and D
This is because they are on the x-axis, so if reflected, they stay in the same spot. It's like pushing your finger against a mirror. The mirror itself is in the same place, but your finger is reflected inside it hope you enjoy the answer have a great day.
Step-by-step explanation:
Help please,,,i beg smartiesss
Answer:
top box is 18, third on the bottom is 10 and fourth on the bottom is 12
Step-by-step explanation:
For two onions, add 9 tomatoes. If you have two onions, you have 9 tomatoes. This could be looked at as multiplying the amount of tomatoes by the (onions/2).
My salary next year will be at least $22,000.translate?
i’ll mark brainlest again! :D
Answer:
3 one
yeeeeeeeeet
0000000000000000000 00000000
Answer:
x= 14/a+2y
Step-by-step explanation:
:)
Answer: 0
Very hard work u know
An account is opened with an initial deposit of $5,500 and earns 2.5% interest compounded annually. What will the account be worth in 10 years? Round your answer to the nearest cent. Do NOT round until you have calculated the final answer.
Answer:3243
Step-by-step explanation:
Find the value of x. Then find the value of each labeled angle
Answer:
17 x e 15A
Step-by-step explanation:
respond
e tava certo
Answer:
X=18 4x=72 6x=108
Step-by-step explanation:
Since the diagonal side of the parallelogram from each side has the same angle, there are two 4x's and to 6x's. Adding them all together is 20x and a parallelograms angles always to add up to 360 degrees. So 360=20x so x=18 and 4×18=72 and 6×18=108.
Find the product. (3.5(-3.4)
Answer:
-11.9
Step-by-step explanation:
Jerry was told that he would earn $8 each for washing cats and $16 each for washing dogs. Write an expression to determine his total earnings if he washes 16 cats and 14 dogs.
Answer:
For every dog and cat he washes he gets 24 dollars right so he would get 352 MKenya
Step-by-step explanation:
How can i solve for x
Answer:
Step-by-step explanation:
So we know the square is 90 degrees because it is a right angle, We need to find x = The shape of x is a acute angle which is smaller than a right and obtuse = Obtuse angles are larger than right angles. So look through the answer and find one that is smaller number than 90 degrees.
Good Luck! If you showed my the answer options I could give u a detailed explanation with a answer.
Create an expression in which a trinomial is multiplying another trinomial.
Your expression must also meet the following criteria:
One of the trinomials must have a degree of 3
One of the trinomials must have a degree of 4
Each trinomial must have a constant
Each trinomial must be in simplified form.
Answer:
(b) Multiply the expression you created above and simplify your answer. Show your work for each step for credit.
Answer:
Answer:
(b) Multiply the expression you created above and simplify your answer. Show your work for each step for credit.
Answer:
let expression be
x³+2x+3
x⁴+x+1
now.
multiplying it
(x⁴+x+1)(x³+2x+3)
x⁴(x³+2x+3)+2x(x³+2x+3)+x³+2x+3
x^7+2x^5+3x⁴+2x⁴+4x²+6x+x³+2x+3
x^7+2x^5+2x⁴+x³+8x+3