Is this a funtion? please help
Answer:
No, it is not
Step-by-step explanation:
Here, we want to check if what we have is a function
For a relation to be a function, the mapping must be one to one or many to one
This mean, for every x there must be one y or for every y, there must can be multiple x
But never is it that there are many y for a single x
Looking at the value 0
on the domain, we can see -2 and 1 as the values
Thus, this is not a function
Zachary has been flipping a coin, and he noticed that he had the coin come up tails five times in a row. "The next time has to be heads!" He exclaims. Is he right? Is it theoretically more likely to come up heads? Please explain
Will mark BRAINLIST if right.
Answer:
No. Each toss is independent so it is NOT more likely to come up heads the next time.
Step-by-step explanation:
That is the answer. Hope it helps
Answer true/false. If false, give a counterexample. 11. Perfect squares are closed under multiplication.
Answer:
so basically thanks for the points mate
Step-by-step explanation:
Answer:
Step-by-step explanation:
it is false because it isnt counterfit for the cenementers
If 6/x=5/y, then 6/5=?/?
Answer:
[tex] \frac{6}{x} = \frac{5}{y} \\ 6y = 5x \\ Answer \frac{6}{5} = \frac{x}{y} [/tex]
y = -3 sin x – 2.
what is the sinusoidal axis
Answer:
The sinusoidal axis is the neutral horizontal line that lies between the crests and the troughs (or peaks and valleys if you prefer). ... Instead, it would still be the horizontal line directly between the crests and troughs which is also the average of the maximum and minimum values
Martin has a bag of marbles. He removed one marble at random, recorded the color and then placed it back in the bag. He repeated this process several times and recorded his results in the table. Find the experimental probability of drawing each color.
Red: 12
Blue: 10
Green: 15
Yellow: 13
What are two different ways you could find the experimental probability of the event that Martin does not draw a red marble?
Answer:
38/50 ; or 19/25
Step-by-step explanation:
One way could be that you add all the marbles together to get your total marbles; 12 + 10 + 15 + 13 = 50.
Then you add all the colours expect red; 10 + 15 + 13 = 38.
Which would give me 38/50; which simplifed would be 19/25
Use the cosine ratio to find the value of x, to the nearest tenth.
a) 2.7
b) 3.2
c) 4
d) 3.9
Answer:
c) 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangles Only] SOHCAHTOA [Right Triangles Only] cosθ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Identify Variables
Angle θ = 34°
Adjacent Leg = x
Hypotenuse = 4.8
Step 2: Solve for x
Substitute [Cosine]: cos34° = x/4.8Isolate x: 4.8cos34° = xRewrite: x = 4.8cos34°Evaluate: x = 3.97938Round: x ≈ 4Ariel is decorating a wall for her niece's birthday. She uses 3 sunflowers for every 5 roses. When she finished decorating, she used a total of 21 sunflowers. How many roses did Ariel use to decorate the wall for her niece's birthday
Answer:
divide 21 by 3=7
7 x 5 = 35
Answer = 35 roses
Step-by-step explanation:
TRUE
OR FALSE
OR NOT ENOUGH INFORMATION
WORTH 50 POINTS AND BRAINLIST
Answer:
true
Step-by-step explanation:
please the second probability is true
Answer: I believe it's False
Hope this helps love<3
Kim had d dollars and she bought a apples for 12 cents each and b bananas for 18 cents each. How many cents did she have left
===================================================
Explanation:
d dollars = 100d cents
for example, if d = 4, then,
4 dollars = 100*d = 100*4 = 400 cents
So Kim starts off with 100d cents.
She buys 'a' apples, where 'a' is a placeholder for the number of apples. If a = 5, then she bought 5 apples and spends 12*a = 12*5 = 60 cents. In general, she spends 12a cents buying 'a' apples.
Similarly, she spends 18b cents buying b bananas. The letter b is the placeholder for the number of bananas.
Overall, Kim spends 12a+18b cents for buying that amount of apples and bananas. Subtract this expression from 100d to find out how much money she'll have left over.
100d - (12a+18b) = 100d-12a-18b
This left over amount is in cents. If you want to convert to dollars, then you would need to divide by 100.
Do the brainly bois got me?
Answer: It think that 3 is adjacent to 5
Please help me with this..!
Answer:
opposite sides are congruent for first under given
AD=AD for reflective property of congruency
next one under given is definition of perpendicular lines
and last box is acd=bdc
Step-by-step explanation:
8/9 divided by 4 equals what?
Answer:
2/9 = 0.2222222
but it is 2/9
Step-by-step explanation:
7 candes cost £45.29,
how much would 25 candles cost?
Answer:
161.75
Step-by-step explanation:
45.28 divided by 7 = 6.47
6.47 per cande
6.47 times 25 = 161.75
Benny went to an arcade where every player gets 2 tokens as they arrive. Each time Benny plays a game he wins additional tokens. The number of games, X, and the total number of tokens Benny has, y.
are represented in the table below.
Complete the table AND write a function rule to represent how many tokens Benny has based on the number of games he plays
Drag and drop an answer choice in each my box below
2 4 6 8 10
10
Answer:
y = 2x + 2
Step-by-step explanation:
just trust me i took test and it had this question on it lol
what this means help
Answer:
1 is -2 and 2 is +5
Step-by-step explanation:
Its how Mafia
James was working on his school homework for 2 hours. He spent 1/3 of this time working on math, and 1/4 of the rest of the time doing reading. How many minutes did James do math?
Daria is constructing a line perpendicular to line f. Below is her partial construction.
Through which point does the line pass?
Answer:
its c
Step-by-step explanation:
Point L is the circumcenter of angle ABC. List any segment(s) congruent to each segment.
20 POINTS
Plz help I need to get my grade up in a week!!
Answer:
For 13 the slope is 0
Step-by-step explanation:
I can't see 12 nor 11, but 13 is a zero slope because horizonal lines have 0 slope.
please simplify 5(x-1)
Answer:
5x-5
Step-by-step explanation:
Just use distribuative property
Select the Correct Answer.
Consider the functions f and g
f(x) = |2x+9|
(graph attached)
What is the value of g(f(-5))?
A. 5
B. -5
C. 0
D. -1
Answer:
I Guessed postive 5 and got it right
Step-by-step explanation:
So the answer is 5
NOT -5
HElp
The diagonal length of a rectangle is 19 inches, and the length of the rectangle is 7 inches. Which measurement is closest to the width of this rectangle in inches? 12 in. 17.7 in. 20.2 in. 26 in.
Answer:
17.7
Step-by-step explanation:
Juan took a test last week. He answered 17 questions correctly which is 85% correct. How many total questions were on the test?
Answer:20 questions I believe
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
17 divided by 85%
PLEASE HELP THANKS!!!
Answer:
You first need to know what number 6 4/5 is, which is 6.8. To figure it out, you multiply 6 by 5 then add 4 and put the number you get on top of the fraction so it would be 34/5 = 6.8
6.9 is the answer
6.9 is bigger than 6.8 and smaller than 7
Solve for J MUST SHOW WORK
j/-2 + 7 = -12
Answer:
j/-2+7=-12
subtract 7 from both sides
whcich cancels the 7 on the LEFT side
j/-2=-19
multiply both sides by 2
which cancels the -2 on the LEFT side
j=-38
wanted the points for it, bc i actually tried
Step-by-step explanation:
It’s very urgent pppppllllllzzzzzzzz
Help!!!❤️
Thkk
Answer:
6
Step-by-step explanation:
mark brainliest...........
Plzzzz need help ASAP plsss
WHOEVER ANSWERS FIRST GETS BRAINLIEST AND I NEED AN EXPLANATION PLZ
Answer:
Q7: -4 ; Q8: 2.6x + 8
Step-by-step explanation:
For the first one, since they are like terms, you can just normally subtract:
3x - 7x = -4x
Its a negative since 3 - 7 = -4 not positive 4.
You did question 8 correctly.
Chloe works for an estate agent. Her monthly pay is made up of a salary of £1,600 and a bonus of £300 if she sells at least 2 properties. She is also paid 6% of the agency's annual profit at the end of the year. Last year the agency had an income of £436,000 and costs of £380,000. There were 4 months in which Chloe sold 2 or more properties. What was Chloe's total pay last year?
Answer:
22,860
Step-by-step explanation:
she makes 1600 per month x 12 months = 19,200
she sold more than 2 properties during the year so add 300
company profit = 436,000 - 380,000
= 56,000
6% of 56,000 = 3,360
add: 19,200 + 300 + 3360
