Answers
Answer:
42°
Step-by-step explanation:
Angles on one side of a straight line always add up to 180.
Therefore: 180° - 123° = 57°
So, 57° + 81° =138°
x=180° -138° = 42°
Related Questions
An icicle drips at a rate that can be represented by the function f(x) = −x2 11x − 18, where 0 ≤ x ≤ 10 and x is the number of hours after the sun has risen. when f(x) is a negative number, the icicle is not dripping. determine the values when the icicle starts and stops dripping. x = 2 and x = 9 x = −2 and x = 9 x = 2 and x = −9 x = −2 and x = −9
Answers
Quadratic functions are functions that have a leading degree of 2. The values when the icicle starts and stops dripping is at x = 2 and 9
Application of intercepts of a functionQuadratic functions are functions that have a leading degree of 2.
Given the equation that represents the rate at which an icicle drips below:
f(x) = −x^2 + 11x − 18
If the icicle is not dripping at the point where f(x) is a negative number, hence point where the icicle starts and stops dripping is the point where f(x) =0
Substitute
−x^2 + 11x − 18 = 0
x^2 - 11x + 18 = 0
x^2 - 9x - 2x + 18 =0
x(x - 9)-2(x-9) = 0
x = 2 and 9
Hence the values when the icicle starts and stops dripping is at x = 2 and 9
Learn more on intercepts here: https://brainly.com/question/24990033
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Multiply the binomials:
Answers
Answer:
2y² + y - 15
Step-by-step explanation:
ConceptsMultiplying Binomials:To multiply binomials, it's best to use the FOIL method, which stands for First, Outside, Inside, and Last. Let's analyze the first, outside, inside, and last term in the binomial we're given by bolding them (in addition, the numbers we bolded are the numbers we multiply; i.e. for the first term, we multiply y and 2y):
First: (y + 3)(2y - 5)Outside: (y + 3)(2y - 5)Inside: (y + 3)(2y - 5)Last: (y + 3)(2y - 5) SolvingSolving the BinomialStep 1: Apply FOIL method.
[tex](y)(2y) + (y)(-5) + (3)(2y) + (3)(-5)[/tex] [tex]2y^2 -5y +6y -15[/tex]Step 2: Simplify.
[tex](2y^2)+ (-5y+6y)+(-15)[/tex] [tex]2y^2+y-15[/tex]Therefore, the answer is 2y² + y - 15.
Answer:2[tex]y^{2}[/tex]+y-15
Step-by-step explanation:
(using distributive property)
(y+3)(2y-5)
y(2y-5)+3(2y-5)
2y^2-5y+6y-15
2y^2+y-15
I need help I don't understand
Answers
Answer:
I think it's 6 because there are 6 sides that make up the cube, hopefully I'm right.
Answer:
All the lines put 10 above it
Step-by-step explanation:
All the dimensions (Number of squares) Are equal to ten
The ice skating rink charges an hourly fee for skating and $3 to rent skates for the day. Gillian rented skates and skated for 3 hours and was charged $21. Which equation represents the cost, c(x), of ice skating as a function of x, the number of hours of skating?
c(x) = 3x + 3
c(x) = 6x + 3
c(x) = 7x + 3
c(x) = 8x + 3
Answers
Answer:
c(x) = 6x + 3
Step-by-step explanation:
c(x) = 6x + 3
he skated for 3 hrs and was charged $21
c(3) = 6(3) + c(3) = 18 + 3
c(3) = 21
correct....so it is c(x) = 6x + 3
p.s please mark this question as brainleist
Thx
answer:
B) c(x) = 6x + 3
explanation:
Gillian rented skates, which costs $3. Now you must subtract that from your total as the next step is to find how much the hourly fee for skating is. $21 - $3 = $18. $18 was the total price for three hours of skating so to find how much the hourly rate is, you divide it by 3. $18/3 = 6. Therefore it is $6 per x amount of hour(s) plus $3 for skates, or simply put, c(x) = 6x +3.
I give 20 points!!!
If I get 50 euros per month, how many months I need to buy a product for 640 euros
Answers
50+50+50+50+50+50+50+50+ 50+50+50+50+50= 650 which is enough to buy the product
At a customer service call center for a large company, the number of calls received per hour is normally distributed with a mean of 60 calls and a standard deviation of 10 calls. What is the probability that during a given hour of the day there will be between 53 calls and 61 calls, to the nearest thousandth?
Answers
Answer:that one man that got blast
Step-by-step explanation:
Answer:≈
0.298
≈0.298
Step-by-step explanation:�
=
60
�
=
10
μ=60σ=10
Draw a picture:
Draw a picture:
μ−3σ
μ−2σ
μ−σ
μ
μ+σ
μ+2σ
μ+3σ
30
40
50
60
70
80
90
53
61
Use Calculator:
Use Calculator:
lower:
lower:
53
53
upper:
upper:
61
61
�
:
μ:
60
60
�
:
σ:
10
10
Which property of multiplication allows us to
change what we multiply
first in order to answer a
problem?
Example:
50 X 9 - 10 x (5 x 9)
Answers
12 divided by 32.5 I know there’s a simple math problem but I just need help
Answers
The slope of a line is -8. What is the slope of a line that is perpendicular to that line?
A) -8
B) -1/8
C) 1/8
D) 8
Answers
Answer:
B
Step-by-step explanation:
For 2 lines to be perpendicular, their gradients must have a product of -1Only one that matches this is BAnswer:
C
Step-by-step explanation:
Slope m = -8 perpindicular slope = -1/m = 1/8
You can buy 5 cans for green beans at the Village Market for $2.60. You can buy 10 of the same cans of beans at Sam's Club for $5.50. Which place is the better buy?
Answers
Explanation- each can at village market is $0.52 , and each can at sams club is $0.55
Answer:
Village market
Step-by-step explanation:
What you want to do is times the 5 for 2.60 deal by two since 5x2 is 10, and 10 of cans of green beans at Sam's club is 5.50
5x2=10
I
I
V
1
2.60
+2.60
----------
5.20 for 10 cans of green beans at the village market
so the cheaper option is to buy 10 cans of green beans at the Village Market which saves you 30 cents than if you were to get them from Sam's Club
HELP HE:LP HELPPPPPPPPPPp
Answers
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(
8
,
−
2
)
Equation Form:
x
=
8
,
y
=
−
2
What is the IQR (interquartile range) of the data set represented? Minimum value = 5 Q1=9.5 Median = 17 Q3=23 Maximum value=28 11 12
13.5
23
Answers
Answer:
13.5
Step-by-step explanation:
Q3 - Q1 is the interquartile range
23- 9.5
Can someone help me out I will give u brainest
Answers
Answer:
A=4πr2=4·π·2.52≈78.53982 ==> A
Step-by-step explanation
the radius is 2.5 feet, the formula is given, then sub for pi and approx answers is 78.5
The average speed for a family trip is 62 miles per hour. Which equation models the distance traveled d and time in hours t?
Answers
Answer: d = speed × t or d= velocity × time
d = 62t
Step-by-step explanation: See above
PLEASE HELP!!!
Find P15, which is the IQ score separating the bottom 15% from the the top 85%. Assume the scores are normally distributed with a mean of 100 and a standard deviation of 15.
A. 82.5 B.83.3 C.84.0 D.84.6
Answers
Can someone please help me with this?? Thanks :)
Answers
Answer:
m<2=60
m<1=120
m<3=120
Step-by-step explanation:
Since m<4=60 that transfers to m<2 also because they are equal. To find the other to angles you have to subtract 60 from 180 because m<1 and m<4 create a straight line that equals 180. That then also transfers to m<3.
Thank you have an amazing day.
The dot plot represents the length of practice time in minutes for the math competition. Explain how the outlier of the data affects the statistical summary of the data.
Select the answers from the drop-down menus to complete the statements.
The mean practice time
Choose... (decreases, increases, does not change)
because of the outlier.
The median practice time
Choose... (decreases, increases, does not change)
because of the outlier.
The range
Choose... (decreases, increases, does not change)
because of the outlier.
Answers
Using statistical concepts, it is found that:
The mean practice time decreases because of the outlier.The median practice time does not change because of the outlier.The range increases because of the oulier.What are the mean, the median and the range of a data-set?The mean is the sum of all observations divided by the number of observations.The median is the middle value, the value that separates the upper 50% from the bottom 50%.The range is the difference between the largest value and the smallest.From their concepts above, we have that the mean and the range are influenced by outliers.
In this problem, the outlier is at the low end, of 15, hence:
The mean practice time decreases because of the outlier.The median practice time does not change because of the outlier.The range increases because of the oulier.More can be learned about statistical concepts at https://brainly.com/question/24732674
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what is the y-intercept?
Answers
The y intercept is where a line on a graph crosses the y axis when the x coordinate is 0.
Answer:
The point where the line is on the Y axis
Step-by-step explanation:
for example in the equation y=mx+b, b would be the y-intercept or in the equation y=4x+7, the y-intercept would be 7.
The height of a cylinder is 7 inches. another cylinder with the same size base has double the volume. what is the height of the second cylinder? 3.5 in. 7 in. 14 in. 28 in.
Answers
Answer:
14
Step-by-step explanation:
An internet service provider charges $18 per month plus and initial set-up fee of $10. how many months it will take you to spend $226.
Answers
Answer:
226-10 = 216
216:8=27
answer : 27 months
Daniel made 36 cards that are all the same size and shape. Each card has a single number on it, 1, 2, 3, 4, 5, or 6, and is red or green as shown in the table. For example, there are 2 red cards that have the number 5 on them.
Answers
Answer:
Daniel made 36 cards that are all the same size and shape. Each card has a single number on it, 1, 2, 3, 4, 5, or 6, and is red or green as shown in the table. For example, there are 2 red cards that have the number 5 on them.
Step-by-step explanation:
the question is on the image
Answers
5th Bounce- (-)200
9th Bounce- (-)560
Every time the ball bounces it loses 40cm because on the first bounce 160cm-120cm=40cm
And the score goes down by 40 every time and since we go into the negatives the negatives sometimes add on top of each other
What is the 10th term in the increasing pattern shown?
1, 1, 2, 3, 5, 8, 13
Answers
Answer:
55
Step-by-step explanation:
(after the first "1") You need to add the previous two numbers together to get the next number in the pattern.
Write the missing number to make these equivalent fractions correct.
?/20 = 2/5
Five starts to the first person to answer me!!!
Answers
Answer:
8/20 = 2/5
Hope this helps!
Follow the rule to find the output for an input of -11.
output = input + 12
Answers
Step-by-step explanation:
given, output = input + 12
output = -11 + 12
output = 1
Joy is making hand-painted ornaments for
her family this year. Yesterday, she made 2
ornaments in 6 hours. This weekend, she
plans to spend a total of 15 hours making
ornaments.
If Joy works at the same rate, how many
ornaments will she make this weekend?
Answers
Answer:
1 ornament per 3 hours
in 15 hours she will have 7.5 of them done
Answer:
5 Ornaments
Step-by-step explanation:
First, we take into account that 24 hours are in one day. We then make the equation 6/24, which tells us that she can make 8 ornaments in 24 hours. That's not the answer we need though.
We will divide 2 by 6 = 0.33
We can take that and multiply it by 15 hours to get 5 ornaments total.
Hope this answer helped u out :D
HELP!!!!!
50 POINTS!
Answers
Answer:
true
false
false
false
Step-by-step explanation:
false 0,0 blue dot go right.
Please help will give brainliest to whoever explains their answer correctly
Answers
Tino works at a retail clothing store as a sales clerk and part of his paycheck is based on commission, meaning that it is determined by the value of the clothes that he sells. Each week, he earns $7 an hour plus 15% of his total sales. If Tino works for 18 hours and sells $538 in clothes in a certain week, what is the amount of his commission? What is his total pay for that week?
Answers
Answer:
$206,7
Step-by-step explanation:
Which units would be used for a measurement of area?
Answers
Answer:
cm
Step-by-step explanation:
The area of a square with side 1 cm each is 1 cm × 1 cm = 1 square centimeter.
Answer:
cm^2
For a measurement of area cm^2 unit would be used.