Cho hình bình hành ABCD . Gọi E , F , M , N là trung điểm AB , BC , CD , DA . Cmr : a) Ba vectơ EF , AC , MN cùng phương . b) vectơ EF = vectơ NM. Suy ra : EFMN là hình bình hành
Answer:
Không ai yêu bạn
Step-by-step explanation:
Bạn là người Việt Nam, ruộng lúa của bạn có hư không? Tốt nếu nó được.
On a coordinate plane, 2 straight lines are shown. The first solid line has a negative slope and goes through (negative 2, 3) and (0, negative 1). Everything to the left of the line is shaded. The second dashed line has a negative slope and goes through (0, 2) and (1, 0). Everything to the right of the line is shaded.
Which inequality pairs with y≤−2x−1 to complete the system of linear inequalities represented by the graph?
y<−2x+2
y>−2x+2
y<2x−2
y>2x−2
Answer:
its b
Step-by-step explanation:
I think it's b because I am trying
Simplify 3 10 +7 15- 6 10 -4 15
O 3/10-315
O 315-3110
O 3130 -3120
O 3120-3130
Answer:
B
Step-by-step explanation:
What is the slope of the line
Answer:
3/3=1/1=1 is the slope
Step-by-step explanation:
the rise is 3 and the run is 3
Hope it helps!
Rachel can finish the job in 5 hours, while Carl can finish the same job in 8 hours. How long will it take them to finish the job together?PLS ANSWER ASAP WILL MARK BRAINLIEST IF CORRECT!!!!
5-7 hours i think, not 100% sure
Step-by-step explanation:
if you have any answer choices can you please list them? I'm not sure if this is correct but I'm guessing it'll take them both 5ish hours. Since Rachel can finish it in 5 hours but Carl takes longer, either they'll get it done in 5 hours or may it'll take a longer like 6 hours if Carl slows Rachel down. hope this helps!
Answer: 3 hours
Step-by-step explanation:
If she can do it in 5 and he, in 8 then subtract 5-8 and you get 3. Together they can complete this in 3 hours. Have a great day!
A group of friends wants to go to the amusement park. They have no more than $150
to spend on parking and admission. Parking is $13.50, and tickets cost $22.75 per
person, including tax. Write and solve an inequality which can be uused to determine
X, the number of people who can go to the amusement park.
FEE
Inequality:
Answer:
22.75x + 13.50 = 150
Step-by-step explanation:
In a river, a trout passed beneath a woman who was swimming at 1,800 centimeters per minute. The trout swam 8,000centimeters directly upstream at a constant velocity. It swam that distance in 0.8minutes. What was the trout's velocity?
Write your answer as a whole number.
centimeters per minute upstream
Answer:
It would approximately be 3.73 m/h
Step-by-step explanation:
0.8 mins is 48 seconds
I then divided 8000 by 48 seconds to see how many cm it traveled per second.
It traveled 166.666666667 cm per second
I then converted cm to feet
so it was 5.468066491699474 feet per second
I then converted feet to miles, so it was 0.0010356186537309611598 miles per second.
Then I multiplied it by 60 so it was 0.06213711922 miles per minute.
Finally I multiplied it by 60 again to make it 3.72822715343 miles per hour.
I rounded it to the nearest hundredth making it 3.73 m/h
X/2 -5=20 please give details
Answer: x=50
how?
[tex]\frac{x}{2}[/tex] - 5= 20 (first ADD 5 with 20 whatever you do on one side you have to do it to the other) so that gives us:
[tex]\frac{x}{2}[/tex]=25 (we see that 2 is being divided by x and we want X alone so the inverse of division is MULTIPLICATION)
25 x 2= 50
therefor the x=50
please help me solve x please
Answer:
x = 5
Step-by-step explanation:
The exterior angle theorem states that the measure of each exterior angle of a triangle is equal to the sum of the opposite and non-adjacent interior angles.
In the given problem, the exterior angle is < B, and the non-adjacent interior angles are < D and < C.
Given that:
< B = 12x + 8
< D = 8x + 8
< C = 20°
Set up the following formula to solve for x:
(8x + 8) + 20 = 12x + 8
Combine like terms:
8x + 28 = 12x + 8
Subtract 8 from both sides:
8x + 28 - 8 = 12x + 8 - 8
8x + 20 = 12x
Subtract 8x from both sides:
8x - 8x + 20 = 12x - 8x
20 = 4x
Divide both sides by 4 to solve for x:
20/4 = 4x/4
5 = x
Therefore, x = 5.
A laptop has a listed price of $503.98 before tax if the sales tax rate is 7.5% find the total cost of the laptop with sales tax included
Answer:
The tax would be roughly $37.79, which means the laptop would be overall $541.77.
I need help with this question
Answer:
ijjjjjjjhgd ghhhh gghh
1.2 1,4
Please help me solve this
Answer:
Step-by-step explanation:
This number is much larger than 1. You need to start at the decimal and move left (that's how scientific notation works for numbers larger than 1.)
So the answer is 1.0054 * 10 ^7
The person doing this started at the 1 and moved right until he/she hit the decimal. Wrong direction.
Which is the equation of a line that has a slope of -2/3 and passes through point
(-3,-1)?
o y=-2/3x+ 1
O y=-2/3x+3
o y=-2/3x-1
0 y=-2/3x - 3
We have to find b
(-3,-1)m=-2/3[tex]\\ \sf\longmapsto y=mx+b[/tex]
[tex]\\ \sf\longmapsto -1=\dfrac{-2}{3}(-3)+b[/tex]
[tex]\\ \sf\longmapsto -1=-2(-1)+b[/tex]
[tex]\\ \sf\longmapsto -1=2+b[/tex]
[tex]\\ \sf\longmapsto b=-3[/tex]
Now put in equation
[tex]\\ \sf\longmapsto y=\dfrac{-2}{3}x-3[/tex]
Option D
Which statement about this equation is true?
2x + 4 = 2(x + 2)
Answer:
number 3 is right
Step-by-step explanation:
this equation has infinitely many solutions
hELP asap
39.67 + 18.41
Answer:
58.08
Step-by-step explanation:
Answer:
58.08
Step-by-step explanation:
39.67+18.41=58.08
Write the following terms as a product of prime factors.
12m²n^3 =
18m^3n =
Writing the terms as a product of prime factors; we have;
12m²n³ = 2 × 2 × 3 × m × m × n × n × n18m³ n = 2 × 3 × 3 × m × m × m × nAccording to the question:
We are required to write the following terms as a product of prime factors.
Prime numbers are numbers which are only divisible by themselves and the integer 1.
The prime factors of 12m²n³;
12m²n³ = 2 × 2 × 3 × m × m × n × n × nThe prime factors of 18m³n;
18m³n = 2 × 3 × 3 × m × m × m × n.Read more:
https://brainly.com/question/145452
Answer the question below
Answer:
box A.Step-by-step explanation:
im not really sureAnswer:
BOX A
Step-by-step explanation:
The more of something there is, the more heavier it is.
Student Council plans on selling fresh hamburgers at the homecoming game. They
bought 40 lbs of ground chuck to use to make burgers and each burger uses 0.25 lbs
of chuck to make. What is the most amount of burgers they can sell at the game
Answer:
Student Council can make at the most 160 fresh burgers.
Step-by-step explanation:
Take 0.25 and divide it by 40.
0.25 / 40 = 160
Which number is greater than 1/4
Answer:
what numbers are we choosing from?
it isnt showing up if you attached an image.
but anyways 3/4 is larger.
I NEED HELP ASAP. BRAINLIEST TO THE CORRECT ANSWER.
Jane invests £300 at a simple interest rate of 4.5% per year. At the end of each year, Jane gives the interest to a charity Work out the least number of years it will take for the total amount given to the charity to be greater than £50. Show your workings.
Answer:
At least 4 years
Step-by-step explanation:
Simple interest is given by
I = Prt
so here, one year's interest is
I = 300(.045) = 13.5
Divide 50 by 13.5 and get 3.7 years...thus
she will need four years to donate 50...
Step-by-step explanation:
Interest Rate = (Simple Interest × 100)/(Principal × Time).
given
Principal(P) = 300
Interest Rate(I.R) = 4.5%
Simple Interest(S.I) = 50
required
Time(T)
I.R = (S.I × 100)
(P ×T)
T × I.R = (S.I × 100) ×T
I.R (P × T) × I.R
T = (S.I × 100)
(P × I.R)
= (50 × 100)
(300 × 4.5)
= 5000
1350
=3.7
divide the given equation By 5 5x² - 4x- 3 = 0 .
Answer:
x^2 - 4/5x - 3/5 = 0
Step-by-step explanation:
5x^2/5 - 4x/5 - 3/5 = 0/5
x^2 - 4/5x - 3/5 = 0
[tex]\\ \sf\longmapsto \dfrac{5x^2-4x-3=0}{5}[/tex]
Divide each variable by 5[tex]\\ \sf\longmapsto \dfrac{5x^2}{5}-\dfrac{4x}{5}-\dfrac{3}{5}=\dfrac{0}{5}[/tex]
[tex]\\ \sf\longmapsto x^2-\dfrac{4}{5}x-\dfrac{3}{5}=0[/tex]
We are done!
-2 + 4k2 = -15 help pls
I got this…
not working at all.
What is the slope of line segment betweem the points (-1,-1) and (-2,-4)
Answer: 3
Step-by-step explanation:
Slope formula: (y2 - y1)/(x2 - x1)
(-4 -(-1))/(-2-(-1)
(-4+1)/(-2+1)
-3/-1
= 3
For detailed, step-by-step explanations you can visit my fiverr account: kesja_
I provide detailed explanations for math questions for as little as $1!
Answer:
hope you like my answer its -3
Tim wants to prove that BA≅BC by proving △BXA≅△BXC
. He knows that: BX is the perpendicular bisector of segment AC, and therefore
any point on BX is equidistanct from point A and point C.
Why is
△BXA≅△BXC?
B.
Side-Side-Side (SSS) Theorem
C.
Angle-Side-Angle (ASA) Theorem
D.
Angle-Angle-Side (AAS) Theorem
E.
Hypotenuse Leg Theorem
Answer:
hh
Step-by-step explanation:
if i read 50 pages in 40 minutes how many pages do i read a minute
Answer:
You are reading 1 1/4 page/minute.
Step-by-step explanation:
The difference between two positive numbers , 12/(x + 1) and 12/x , 1. () Form an equation in x and show that it reduces to x ^ 2 + x - 12 = 0 . (ii) Solve the equation x ^ 2 + x - 12 = 0 . () Hence , find the two numbers .
Answer:
Step-by-step explanation:
12
the temperature dropped 4°c every hour for 5 hours. write an integer that represents the change in temperature
Answer:
20°C
Step-by-step explanation:
To find the change in temperature, we can multiply the values given.
4 * 5 = 20°C
Best of Luck!
There are 360 girls in a school and they account for 15% of the students studying there, How many students study at that school?
Answer:
1250
Step-by-step explanation:
0
help!!
which are the answers??
B, D, E.
Step-by-step explanation:
Answer:
to me this is extremely simple a stitscal Quinton is a question that needs math or science or has a logical answer not one that has assumptions
Step-by-step explanation:
the answer is A) D) F) G) GOOD LUCK
Amtrak: 80 miles in 5 hours
Metra: 30 miles in 2 hours
Which train is faster? How do you know?
Answer:
hope it helps......................
Answer:
Hello, There! I'll be Glad to help
QuestionAmtrak: 80 miles in 5 hours
Metra: 30 miles in 2 hours
Which train is faster? How do you know?
Answer[tex]\textbf{Amtrak is correct}[/tex]
Step-by-step explanation:
So First we have to figure out Has fast the trains go in 1 hour so we are going to divide...
Metra30 ÷ 2 = 15 Miles (Metra can go 15 Miles in one hour)
Amtrak80 ÷ by 5 = 16 (Amtrak Can go 16 Miles in one hour)
_______________________________________
So If Metra Were to keep going Here are the list of Miles Below
(45 Miles in 3 hours)
(60 Miles in 4 hours)
(75 miles in 5 hours)
________________________________________
Amtrak
(96 Miles in 6 hours)
(112 miles in 7 hours )
(128 miles in 8 hours)
Therefore, Amtrak is the Fastest Train