Step-by-step explanation:
Let use the first of the medians. Medians AX.
Median AX is the midpoint of BC so our median is
[tex] \frac{1}{2} (b + c) - a[/tex]
Let use the second median.
Median BY is the midpoint of AC so our median is
[tex] \frac{1}{2} (a + c) - b[/tex]
Let use the final median.
Median CZ is the midpoint of AB so our median is
[tex] \frac{1}{2} (a + b) - c[/tex]
Now add all them up
[tex] \frac{1}{2} (b + c ) - a + \frac{1}{2} (a + c) - b + \frac{1}{2} (a + b) - c[/tex]
[tex] \frac{1}{2} b + \frac{1}{2} c - a + \frac{1}{2} a + \frac{1}{2} c - b + \frac{1}{2}a + \frac{1}{2} b - c[/tex]
Add like terms.
[tex] \frac{1}{2} b + \frac{1}{2} b - b = 0[/tex]
[tex] \frac{1}{2} a + \frac{1}{2} a - a = 0[/tex]
[tex] \frac{1}{2} c + \frac{1}{2} c - c = 0[/tex]
[tex]0 + 0 + 0 = 0[/tex]
So
AX+BY+CZ=0
mandy buys 36 pens, 36 pencils, 36 rulers and 36 pencil cases
what is the total amount of money spent by mandy
Answer:
Depends on how much each item cost but in this case if everything was a dollar it would cost $144.
Step-by-step explanation:
Hope this helps and have a wonderful day!!!
GIVING BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 30pts-
Answer:
d
Step-by-step explanation:
Included picture
Question is not hard so please answer correctly
Use the greatest common factor and the distributive property to write equivalent expressions in factored form.
13ab + 15ab =
Answer:
ab(28) or 28ab
Step-by-step explanation:
13ab + 15ab = 28ab
Answer:
ab(28) or 28ab
Step-by-step explanation:
A rectangular banner covers an area of 2 7/8ft2. The length of the banner is 3/4ft. What is the width of the banner in ft?
Answer:
Width of the rectangular banner is [tex]3\frac{5}{6}[/tex] ft.
Step-by-step explanation:
Area of the rectangular banner = [tex]2\frac{7}{8}[/tex] square feet
= [tex]\frac{23}{8}[/tex] square feet
Area of rectangle is given by,
Area = Length × Width
Length of the banner = [tex]\frac{3}{4}[/tex] feet
From the formula,
[tex]\frac{23}{8}=\frac{3}{4}\times W[/tex]
W = [tex]\frac{\frac{23}{8} }{\frac{3}{4} }[/tex]
= [tex]\frac{23}{8}\times \frac{4}{3}[/tex]
= [tex]\frac{23}{6}[/tex]
= [tex]3\frac{5}{6}[/tex] ft
Therefore, width of the rectangular banner is [tex]3\frac{5}{6}[/tex] ft
Story is The Crystal Ball Brainliest for correct answers
Answer:
C.
Step-by-step explanation:
Though the story is also about A, B, and D, the overall story is about C. The story begins with the enchanter turning the eldest and second eldest brothers into an Eagle and Whale, though the youngest escapes. He then goes to the castle to free the cursed princess, and to do so he needs to find a crystal ball. If I remember correctly, the ball will also save the brothers.
ITS C
for the iready question it is C youngest brother tryna find the balls, i got it right
How do u make 25 m to *what* cm?
Answer:
2500 cm
Step-by-step explanation:
1 meter = 100 cm
25m x 100 = 2500 cm
Answer:
25cm is equal to 2500 cm because 1 m is 100 cm
Step-by-step explanation:
Please, may i have brainly? i need 4 more!
DO it and thanks for the helpppp!!!!!!!!!!!!!!
Answer:
c
Step-by-step explanation:
the height is 3 so multiply everything by 3 (AFTER) THEN you add the 2 and 5 and get 10 then times by the 3 to get 30
What is the distance between (4, 3) and (7, 3)?
Answer:
3 units
Step-by-step explanation:
What is the slant height of a square pyramid that has a surface area of 319 square feet and a side length of 11 feet?
9 ft
10 ft
11 ft
8 ft
Answer:
the 319 square feet and side length of 11 feet is 10ft
Evelyn is going to invest $3,500 and leave it in an account for 16 years. Assuming the
interest is compounded quarterly, what interest rate, to the nearest tenth of a
percent, would be required in order for Evelyn to end up with $6,200?
Answer:3.6%
Step-by-step explanation:
pls help i dont understand
Answer:
D and C should be correct.
Step-by-step explanation:
A tool box has the dimensions of 10 in by 4 in by 3 in. If Andrea plans to double one dimension to build a larger tool box, she believes she would double the volume of the tool box. Is she correct?
Answer: Yes
Step-by-step explanation:
Given
Dimension of the toolbox is [tex]10\ in.\times 4\ in.\times 3\ in.[/tex]
suppose the length of the box is doubled, then a new length will be [tex]2\times 10\ in.[/tex]
So, the volume of the box becomes
[tex]\Rightarrow V=2\times 10\times 4\times 3[/tex]
It can also be written as
[tex]\Rightarrow V=2\times (10\times 4\times 3)=2\times (V_{old})[/tex]
i.e. the volume of the toolbox is doubled. Therefore, Andrea is correct.
Which of the following represents the graph of f(x) = 3x + 1?
Answer:
the answer is the top one
Step-by-step explanation:
the +1 is on the y axis. y=mx+b
mx=3x b= +1 the b is always on the y-axis
hope this helps :))
What are the integer solutions to the inequality below? 2 x < 3 x + 2 ≤ x + 6
Answer:
-2 < x ≤ 2
Step-by-step explanation:
find the slope between the given two points
Slope can be found using the following equation:
slope (m) = [tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]
7) Let:
[tex](x_1 , y_1) = (-1 , -11)\\(x_2 , y_2) = (-6 , -7)[/tex]
Plug in the corresponding numbers to the corresponding variables:
m = [tex]\frac{-7 - (-11)}{-6 - (-1)} = \frac{-7 + 11}{-6 + 1} = \frac{4}{-5} = -\frac{4}{5}[/tex]
Slope: [tex]-\frac{4}{5}[/tex]
8) Let:
[tex](x_1 , y_1) = (-7 , -13)\\(x_2 , y_2) = (1 , -5)[/tex]
Plug in the corresponding numbers to the corresponding variables:
m = [tex]\frac{-5 - (-13)}{1 - (-7)} = \frac{-5 + 13}{1 + 7} = \frac{8}{8} = 1[/tex]
Slope: [tex]1[/tex]
9) Let:
[tex](x_1 , y_1) = (-5 , 3)\\(x_2 , y_2) = (8 , 3)[/tex]
Plug in the corresponding numbers to the corresponding variables:
m = [tex]\frac{3 - (3)}{8 - (-5)} = \frac{0}{8 + 5} = \frac{0}{13} = 0[/tex]
Slope: [tex]0[/tex]
10) Let:
[tex](x_1 , y_1) = (3 , -2)\\(x_2 , y_2) = (15 , 7)[/tex]
Plug in the corresponding numbers to the corresponding variables:
m = [tex]\frac{7 - (-2)}{15 - 3} = \frac{7 + 2}{15 - 3} = \frac{9}{12}[/tex]
Simplify the slope. Divide common factors from both the numerator and denominator:
[tex](\frac{9}{12})/(\frac{3}{3} ) = \frac{3}{4}[/tex]
Slope: [tex]\frac{3}{4}[/tex]
11) Let:
[tex](x_1 , y_1) = (-5 , -10)\\(x_2 , y_2) = (-5 , -1)[/tex]
Plug in the corresponding numbers to the corresponding variables:
m = [tex]\frac{-1 - (-10)}{-5 - (-5)} = \frac{-1 + 10}{-5 + 5} = \frac{9}{0} =[/tex] undefined.
Slope: undefined
12) Let:
[tex](x_1 , y_1) = (-4 , -2)\\(x_2 , y_2) = (-12, 16)[/tex]
Plug in the corresponding numbers to the corresponding variables:
m = [tex]\frac{16 - (-2)}{-12 - (-4)} = \frac{16 + 2}{-12 + 4} = \frac{18}{-8} = -\frac{18}{8} = ((-\frac{18}{8})/( \frac{2}{2}) = -\frac{9}{4}[/tex]
Slope: [tex]-\frac{9}{4}[/tex]
~
Find the value of x in the triangle shown below.
1. x = 3
2. x = √20
3. x = 2
4. x = √36
Step-by-step explanation:
5²=4²+x²
25=16+x²
25-16=x²
9=x²
√9=√x²
3=x
A
A ship is 130 m away from the centre of a barrier that measures /
180 m from end to end. What is the minimum angle that the
boat must be turned to avoid hitting the barrier?
Answer:
Step-by-step explanation:
50 meters away
Please look at the picture I have been stuck on this question and I would really appreciate it if you can help me thank you
Answer:
52 feet
Step-by-step explanation:
distance is 6 from the question
6 = 5/6 √h
6/5 (6) = √h
36/5 = √h
7.2 = √h
7.2x7.2 = h
h = 51.84
this is Apx huh?
Find the slope of the linear equation 2y = -18x + 10
Answer:
m= -9
Step-by-step explanation:
Hope this helps
what is the volume to the composite figure.
Answer:
462 [tex]cm^{3}[/tex]
Step-by-step explanation:
Rectangular Prism: 7 x 8 x 6 = 336
Triangular Prism: (0.5 x 7 x 6) x 6 = 126
336 + 126 = 462
Given m||n, find the value of x.
Answer:
The answer would be X=2 .
Step-by-step explanation:
Hope it helps u :)
Write the word sentence as an inequality. A number z is fewer than 3/4.
Answer:
[tex]z<\frac{3}{4}[/tex]
Step-by-step explanation:
Please answer this quick
I'm sorry but i can't really see the picture
Answer:
1/4
Step-by-step explanation:
PLEASE PLEASE SOMEONE HELP WITH THIS QUESTION!! 15 POINTS AND I WILL AWARD BRAINIEST!!!!
Answer:
x=14
Step-by-step explanation:
complementary=90 degrees
4x+2x+6=90
6x=84
x=14
Diana decided she needed some new friends to play with. She understood that fish were not fun to hang out with, so she bought 3 baby mice and 2 baby pythons for a total cost of $103.50. Mr. Reyes also thought this was a great idea. He bought 3 baby mice and 3 baby pythons for a price of $148.50. Find the price of the mouse and the price of the python.
Step-by-step explanation:
Let m be the price of 1 baby mice
Let p be the price of 1 baby python
Given,
[tex]3m + 2p = 103.50[/tex]
as equation 1.
and
[tex]3m + 3p = 148.50[/tex]
as equation 2
From here we can easily use elimination method
for solving simultaneous equations.
Use Equation 1 - equation 2 to eliminate m to find p.
[tex](3m - 3m) + (2p - 3p) = 103.50 - 148.50 \\ - p = - 45 \\ p = 45[/tex]
Substitute p into equation 1.
[tex]3m + 2(45) = 103.50 \\ 3m + 90 = 103.50 \\ 3m = 103.50 - 90 \\ 3m = 13.50 \\ m = 13.50 \div 3 \\ = 4.50[/tex]
therefore 1 baby mice cost $4.50 and 1 baby python costs $45.
Answer:
Baby python: $45
Baby mouse: $4.5
Step-by-step explanation:
First of all, 3 baby mice and 2 baby pythons cost $103.50. When Mr. Reyes adds a baby python (He bought 3 baby mice and 3 baby pythons for a price of $148.50.) To find the price of a baby snake, you need to subtract both prices. 148.5-103.5=45, so a baby snake costs $45. Now we need to find the price of the baby mice, so we need to remove the snakes. 45*2=90. (2 snakes). 103.5-90=13.5, and 13.5/3=4.5, so a baby mouse costs $4.5.
Thanks
Alfonso scored 18 points during his last basketball game,which was 40% of the points the entire team.
the entire team score________points.
Answer:
45 points
Step-by-step explanation:
40/100=18/x equation
100×18=1800 multiply
1800÷40=45 divide
x=45 points
Answer:
48 points
Step-by-step explanation:
I took the test
ASAP PLEASE HELP!!!! WRITE AN EXPRESSION
Answer:
10c + 5b + 420 + 4c
Step-by-step explanation: 10 dollars for each child, 5 dollars per a pair of rubber boots, party room is 420 and 4 is per each child's pizza
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!
Answer: Strange? Formulas of spheres dont have height. So with height is 1607,68 and without the height its 268.08
Step-by-step explanation:
301,71 cm ^3
hope this helps have a good day or night
What is 714.29+98.65
Answer:
812.94
Step-by-step explanation:
make sure to line up the decimal to each other to make sure the decimal is in the right place