How many onto functions are there from a set with three elements to a set with eight elements?
Answer:
0 onto functions
Step-by-step explanation:
Let the sets be [tex]A\ and\ B[/tex] such that:
[tex]n(A) = 3[/tex]
[tex]n(B) = 8[/tex]
Required
The number of onto functions
The condition for onto functions is:
For there to be an onto function from set A to set B, the number of elements of B must be less than the elements in set A
Since n(B) > n(A) i.e. 8 > 3
Then, there can't be onto functions from A to B
Plz help me well mark brainliest if you are correct!!
Answer:
B
Step-by-step explanation:
i am smart :)
2 3/5 - 5/6 as a mixed number
Answer:
1 23/30
Step-by-step explanation:
you convet the mixed numbers into improper fractions then find the lowest common factor and combine :)
Select the correct answer from each drop-down menu.
9514 1404 393
Answer:
3(x^3)y -6x(y^2) +93Step-by-step explanation:
The above-listed answer choices are the only ones that are self-consistent.
The quotient choices all have a leading coefficient of 3, and the result of dividing by <some number> is a leading coefficient of 1. Obviously, the <some number> must be 3 (first choice on the second menu).
Looking only at the constant term, we see that after division by 3, we have 3. So the original quotient constant term must be 3×3 = 9 (first choice on the first menu). Note that we have chosen the correct answer simply by looking at coefficients, not even bothering with actual division of variables.
Which describes a location in space?
A.
a point
B.
a line segment
C.
a line
D.
a plane
Answer:
its answer is option A. a point
Answer:
A.
a point
Step-by-step explanation:
a location is a place where a particular place or a point exists..... A place's where absolute location is it's exact place on Earth,often given in terms longitude.for example,the empire State building is located at 40.7 degrees north (longitude), 74 degrees west (longitude)
Ms. Johnson had 3/4 of a tank of gas when she started a trip. When she arrived home, she had 1/8 of a tank left.What fraction of a tank of gas was used during the trip
Answer:
5/8
Step-by-step explanation:
3/4 = 6/8
6/8 - x = 1/8
x = used gas = 5/8
Solve for y=f(x)
X=
What is the input when the output is -3
Answer:
6
Step-by-step explanation:
i guess the answer is 6
the value of x is 6
Please help me, no random answers or links, please.
Answer:
3. (-3,4) x=-3, y=4
Step-by-step explanation:
1. 3x-y=-13
-y=-13-3x
y=13+3x
2. 4x+2y=-4
4x+2(13+3x)=-4
4x+26+6x=-4
10x+26=-4
10x=-4-26
10x=-30
x=-30/10
x=-3
3. y=13+3x
y=13+3(-3)
y=13-9
y=4
3. In a triangle, two angles have measures of 45°
and 85. What is the measure of the third angle in
this triangle?
Answer:
Triangles always have 180°, split in some manner between the three angles. With two of the three angles given, you can set up a relatively simple equation, where the third angle is assigned to the variable x:
45°+85°+x=180°
130°+x=180°
x=50°
look at pic 10 pts will mark brainilest
Show all relevant steps.
If fire fighters response time to an emergency call is normally distributed with a mean of 9 minutes and a standard deviation of 2 minutes. Determine the percent of emergency calls with a firefighter response time:
(a) Between 7 and 11 minutes (b) Less than 12.2 mins (c) At least 7.8 minutes
someone h e l p m e please
Answer:
the answer is D I think <3♡♡♡♡♡
Step-by-step explanation:
:)
What is the Range of this data
Help please find the graph to the equation
The weights of 12-year old boys are normally distributed with a mean of 89 lbs. If 68% of 12 year old boys are between the weights of 82.7 lbs and 95.3 lbs, what is the standard deviation?
A
34
B
6.3
C
3.5
D
12.6
HELP HELP I WILL GIVE ALL MY POINTS JUST HELP ME PLEASE
Answer:
A
Step-by-step explanation:
x = 0
y = -3
Answer:
My best bet is (0,-3) sorry if I'm wrong
PLSPLS HELP MEMEMEME
Answer:
Perimeter = 25
Step-by-step explanation:
J(-2, 5)
K(1, 1)
L(1, -1)
M(-5, -4)
N(-5, 1)
Formula for distance between 2 coordinates is;
d = √((x_2 - x_1)² + (y_2 - y_1)²)
Thus;
JK = √((1 - (-2))² + (1 - 5)²)
JK = √25
JK = 5
KL = √((1 - 1)² + (-4 - 1)²)
KL = √25
KL = 5
LM = √((-5 - (-1))² + (-4 - (-1))²)
LM = 5
MN = √((-5 - (-5))² + (1 - (-4))²)
MN = 5
JN = √((-5 - (-2))² + (1 - 5))²)
JN = 5
Thus;
Perimeter = 5 + 5 + 5 + 5 + 5
Perimeter = 25
What ordered pairs are the solutions of the system of equations shown in the graph below
Answer:
(1, -4) & (4,-7)
Step-by-step explanation:
If both the parabola and the line intersect.
Anybody can help me on this
Answer:
y= -1,800x+39,000
2. 39,000
Step-by-step explanation:
Answer: C the y intercept is 36,000 and the rate is 1,800
Which of these would not make you question the results of a study?
A. The source of the study benefiting from study conclusions
B. Assuming causation from correlation
C. A large sample
D. A large margin of error
The width of a rectangle is 9 inches less than the length. The perimeter is 38 inches. Find the length and the width.
Length __,
Width ___
Answer:
Length: 10
Width: 9
Explanation:
Perimeter Formula:
2(length + width)
So 2(length + width)=38
length + width=19
length + 9=19
length=10
Which of the following side lengths form a right triangle
Helpppp
Answer:
A. 6,8,10
Step-by-step explanation:
6 squared + 8 squared= 10 squared
100=100
what is the formula A=1/2(b1 + b2) - h
Which expression is not equal to the expression shown?
Answer:
[tex]3^{-3}[/tex] ÷ [tex]3^{4}[/tex]
Step-by-step explanation:
When pulged into a calculator:
[tex]3^{3}[/tex] ÷ [tex]3^{-4}[/tex] = 2187
When your options are pulged in you get this:
[tex]3^{-3}[/tex] ÷ [tex]3^{4}[/tex] = [tex]\frac{1}{2187}[/tex]
[tex]3^{3}[/tex] · [tex]3^{4}[/tex] = 2187
[tex]3^{7}[/tex] ÷ [tex]3^0[/tex] = 2187
3 · [tex]3^6[/tex] = 2187
because [tex]3^{-3}[/tex] ÷ [tex]3^{4}[/tex] doesn't equal 2187 that is your answer.
ANSWER ASAP I WILL MARK AS BRAINIEST AND GIVE POINTS
Answer:
90 units sold per hour
Step-by-step explanation:
1/60 of an hour is one minute
1 1/2 is how much it is per minute
1 1/2*60=90
30 points! how many students are expected to wear boots?
Answer:
960
Step-by-step explanation:
80% = 0.8
0.8 * 1200 = 960
Answer:
960
how: 80% = 0.8 then: 0.8 * 1200 = 960
PLEASE HELP ME!!! Find m (angle) LMN
Answer:
108°
Step-by-step explanation:
hii!
lmn would be equal to 85 plus 23.
this is because those angles both make up the big angle lmn, so the answer is 108 degrees.
hope this helped you :)
m[tex]\angle{LMN[/tex] is 108°.
What is an angle ?To form an angle we need at least two rays with one common endpoint this is also known as vertex of the angle.
There are many types of angles.For example - Acute angle, Obtuse angle, Right angle, complementary angle, Supplementary angle.
The most common unit for measuring an angle is in degrees and in radians,Where 1 rad = 180°.
According to the given question.
[tex]\angle{LMP[/tex] and [tex]\angle{PMN[/tex] are given they are 85° and 23° respectively.
From the given diagram we can observe that [tex]\angle{LMN[/tex] is sum of the angles [tex]\angle{LMP[/tex] and [tex]\angle{PMN[/tex].
∴ [tex]\angle{LMP[/tex] + [tex]\angle{PMN[/tex] = [tex]\angle{LMN[/tex]
85° + 23° = 108°.
So, [tex]\angle{LMN[/tex] = 108°.
Learn more about lines and angles here :
https://brainly.com/question/19734324
#SPJ6
(40 Points) A Bag contains 7 green marbles and 35 blue marbles. If a representative sample contains 3 green marbles, then how many blue marbles would you expect it to contain? (SEE PICTURE)
Answer:
1:5
5
2
Step-by-step explanation:
1:5
5
2
explain why 2+x and x+3 are equivalent
Check whether the two expressions 2x+3y2x+3y and 2y+3x2y+3x equivalent.
The first expression is the sum of 2x2x 's and 3y3y 's whereas the second one is the sum of 3x3x 's and 2y2y 's.
Let us evaluate the expressions for some values of xx and yy . Take x=0x=0 and y=1y=1 .
2(0)+3(1)=0+3=32(1)+3(0)=2+0=22(0)+3(1)=0+3=32(1)+3(0)=2+0=2
So, there is at least one pair of values of the variables for which the two expressions are not the same.
HELP ASAP! WILL MARK BRAINLIEST! NEED HELP WITH PROBABILITY
Answer:
Question 1: 3. certain
Question 2: 2. 1/6
Step-by-step explanation:
There are six sides on a die.
1. You cannot roll a 7.
2. You can roll a 1, there is a 1/6 chance you roll that. However, there is zero chance you roll an 8.