Đáp án
A. {2,3,6}
Lời giải:
B\A là tập hợp các phần tử B có mà A không có. => B\A = {2,3,6}
Answer:
.
Step-by-step explanation:
Solve the system of equations by elimination:4p + 4q = 44p - 4q = 28
Answer:
p =9
q =2
Step-by-step explanation:
4p + 4q = 44 -----------(I)
4p - 4q = 28 -------------(II)
Add the equations and thus q will be eliminated and we can find the value of p.
(I) 4p + 4q = 44
(II) 4p -4q = 28 {Now add}
8p = 72
p = 72/8
p= 9
Plugin p = 9 in equation (I)
4*9 + 4q =44
36 + 4q = 44
4q = 44 - 36
4q = 8
q = 8/4
q = 2
Apples are on sale at the grocery store at a price of 8 apples for $4.00. Maggie buys 12 apples. If she is charged the sale price for apples, how much will Maggie pay?
Answer:
$6
Step-by-step explanation:
A faucet can fill a bathtub in 6 minutes. the drain can empty the tub in 10 minutes. If both the faucets and the drain are open at the same time, this situation is represented by this expression, where t is the number of minutes it will take to completely fill the bathtub.
[tex] \frac{t}{6} - \frac{t}{10} [/tex]
which expression can also represent this situation?
Answer:
4t/15
Step-by-step explanation:
Please trust me
What equation is graphed in this figure?
A: y−3=32(x+1)
B: y+1=−23(x−3)
C: y−4=−23(x+2)
D: y+2=−32(x−2)
can anyone help please im havinga prblem in this thank u
Yeah Bro ! I'm here ,
.Given that ;-
slope ( m) = 3/2
y-intercept (c) = -3
Now ,
we know the equation of straight line in slope intercept form;
I.e
y = mx+c
Just substitute m and c 's value , we get
y= (3/2)x +( -3)
or,. y = 3x/2 - 3
[tex]y = \frac{3x}{2} - 3 \\ y = \frac{3x - 6}{2} \\ 2y = 3x - 6 \\ 3x - 2y = 6\\ [/tex]
,
Hence 3x-2y = .6
3x-2y-6 =0 is the required equation.
How many times does the line y=-1 touch the graph? (Ensure to draw your line on the graph)
Answer:
The answer is 2 times
Step-by-step explanation:
Well, the line y equals to negative 1 is a horizontal line that crosses through the y axis.
So, if we were to draw that line in how many times is that line intersecting or coming into contact with our graph well it's happening in these two places right here (shown in attached photo) so that would intersect two times.
Thus, The answer is 2 times
-TheUnknownScientist 72
This is the link
......................
Answer:
-1/2 would be your answer :)
Answer:
The answer is 2
Step-by-step explanation:
the answer would be 2 because the slope moved from (-2,0), to (0, 2). So it moved 2 spaces/grid places up.
(7x^{5} -4x^{4} +2x^{2} -3)-(6x^{4} +9x^{3} -7x^{2} +12)
i need help fr!! ignore the writing lol
Answer:
-40
Step-by-step explanation:
Inputs are the x values and outputs are the y values. To find the output of a function, substitute the chosen value for x.
For instance, when the input is 5:
[tex]-7(5)-5\\-35-5\\-40[/tex]
Then, the output is -40.
Adam went on a shopping trip to Somerville. He purchased a set of dishes originally priced at
$390 but discounted 60%. If sales tax in Somerville is 8%, what was the total cost?
Submit
Answer:187.2
Step-by-step explanation:
Actual price $390
After 60% discount price will be 156
And Sales tax is 8% . Then the price of sales tax is $31.2.
156+31.2= $187.2
Answer:
168.48
Step-by-step explanation:
IXL
Marla filled up her car's gas tank and then went on a trip. After she drove 329 miles, she filled her tank with 14 gallons of gas. If she drove the same number of miles on each gallon of gas, how many miles per gallon did she drive?
Answer:
23 1/2 miles per gallon
Step-by-step explanation:
We start with dividing 329 miles with 14 gallons because it asks to find the number of miles on each gallon of gas -
Miles
----------------------------- =
Each gallon of gas
329 ÷ 14 = 23 1/2 miles per gallon
The volume of a cube is 751cm.3
Work out the length of its side rounded to 1 DP.
Answer:
9.1 cm
Step-by-step explanation:
v = s^3
751 = s^3
Take the cube root of both sides
9.0896392166 = s
Rounded
s = 9.1
Solve the math problem
Only solve 3 and 4
Answer:
nothing is being showed
Step-by-step explanation:
Answer:
Step-by-step explanation:
3) Cost of o balloons = 0
4) It represents a proportional relation ship.
Reason
[tex]\dfrac{25.50}{3}=\dfrac{42.50}{5}=\dfrac{59.50}{7}=\dfrac{76.50}{9}=8.5[/tex]
James can read 520 words in 2 minutes and Luke can read 960 in 5 at what rates are james and Luke able to read?
which is lower:-500 or-1000 feet?
Answer:
-1000
Step-by-step explanation:
if you look on the number line
Answer:
-1000 feet
Step-by-step explanation:
-1000 feet is lower than -500 since both numbers are negative and -500 is close to 0 than -1000
The Drawing below represents a scale drawing of a room, when 1 inch = 16 feet
what is the approximate area of the store in square feet
13 = 1/6y +2x plz help
Answer:
in standard form - y+12x=78
in slope intercept form - y=-12x+78
Step-by-step explanation:
standard form
13=1/6y+2x
multiply both sides by 6
78=y+12x
y+12x=78
slope intercept
13=1/6y+2x
subtract 1/6y from both sides
13-1/6y=2x
subtract 13 from both sides
-1/6y=2x-13
change the signs on both sides of the equation
1/6y=-2x+13
divide both sides by 1/6
y=-12x+78
Help? I need question 1-8 answers .
Answer:
Hi please resend the question so i can help u!
Step-by-step explanation:
HELP ASAP!!!!
I need help finding slopes (100points and brainlyest if it lets me)
Answer:
Step-by-step explanation:
to find slope, m is slope
m=(y2-y1)/(x2-x1)
let’s use one of the coordinates here:
(50,150) and (100,150)
m= (150-150)/ (100-50)
this is the slope
if this is incorrect please notify me! Thankyou :3 have a great evening :D
Answer:
The slope is 0 and the equation for this graph would be y=150
Step-by-step explanation:
la solucion de un triangulo rectangulo tiene uno de sus lados de 5cm otro de sus lados 7cm y el lado de abajo de 4cm
Answer:
thx sa points
Step-by-step explanation:
if 2/5 of pizza costs $1.00 how much will the whole pizza cost
Answer:
2/5
Step-by-step explanation:
How to find the Focus directrix and the lanth of the latus rectum of the equation below
Solve the following equation
x²-10x+25=0
Answer:
X=5
Step-by-step explanation:
You want to factor the left side of the equation
(X-5)(x-5)=0
Set factors that will equal to 0
X-5=0
X=5 is the answer
Which function has two distinct real zeros?
A.) F(x)=2x+2
B.) F(x)=(x-2)²
C.) F(x)=x³+2
D.) F(x)=lxl-2
Answer:
d
Step-by-step explanation:
trust me
Answer:
From its name, the zeros of a function are the values of x where f(x) is equal to zero. ... The function g(x) = x2 – 4 has two zeros: x = -4 and x = 4.
Step-by-step explanation:
Hope this helps :D
Poppy gives one half of a cake to her big brother and the other half to her three friends who share it equally. What fraction of the cake does each friend get?
Please help!!
Answer:
1/12
Step-by-step explanation:
given g(x)=1/2x+7 find g^-1(x)
Name the
alternate
interior angle
with angle 5.
==================================
Explanation:
We can think of lines L and M as sort of train tracks. Inside the train tracks we have the interior angles of: 3, 4, 5, 6
Angles 3 and 6 are one pair of alternate interior angles. They are on alternate sides of the transversal line N.
The other pair of alternate interior angles are 4 and 5
Alternate interior angles are only congruent when L and M are parallel.
Answer:
Angle 4
Step-by-step explanation:
I believe it's on the opposite side of the transversal so yee
Through (-3,-5), Perpendicular to y = -x-5 in point slope and slope intercept form
Step-by-step explanation:
I really hope this helps :)
A student averaged 45 miles per hour on a trip. What was the students speed in feet per second? with solutions please
Answer:
[tex]66 \: ft/sec[/tex]
Step-by-step explanation:
[tex] = \frac{45 \: mi}{hr} \times \frac{5280 \: ft}{1 \: mi} \times \frac{1 \: hr}{3600 \: s} [/tex]
[tex] = 45 \frac{5280}{1} \times \frac{1}{3600}ft/sec \\ [/tex]
[tex] =66 \: ft/sec[/tex]
3. Consider the iterative rules you wrote in Problem 2. (a) Explain why the rules are functions. (b) Your friend says that because the rules are functions, they can be graphed and must have y-intercepts. How would you respond to your friend’s comment? (c) Your friend uses your rules to determine the outputs when the inputs are 18.5. Explain why her outputs are meaningless in this situation. What would you tell her about the inputs she can use? Answer:
The inputs which are required mention below in descriptive.
What is Function?The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x. Mapping or transformation is used to denote a function in math.
(a) The rules are functions because each input has only one output. You can test this out, it's true.
(b) So we did have to find the "y-intercept" earlier. But you have to look at the domain. There won't be any amount paid on Week 0, payment starts at Week 1. So you would have to respond that yes, they can be graphed, but there's no y-intercept; the graph starts at week 1. Additionally, there are only data points at the integer values of x. Look at part c.
(c) The outputs are meaningless because you're counting the time by weeks. There won't be any amount paid in the middle of the week, so she can only use integer inputs.
Learn more about function from:
https://brainly.com/question/12431044
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