Answer:
a = -3
Step-by-step explanation:
0.9a = -2.7
0.9a ÷ 0.9 = -2.7 ÷ 0.9
a = -3
Please help to solve this question, and provide the formal proof. Very much appreciated, and have a great day!
9514 1404 393
Answer:
NB = b
NC = c
Step-by-step explanation:
A "quick and dirty" proof could be this:
M is the midpoint of AN; M is the midpoint of BC . . . . givenABNC is a parallelogram . . . . diagonals AN and BC have the same midpoint (M)*NB = AC = b; NC = AB = c . . . . opposite sides of a parallelogram are congruent.__
More formally, we might prove it like this:
MC = MB . . . . definition of medianMA = MN, AC = b, AB = c . . . . given∠CMA ≅ ∠BMN . . . . vertical angles are congruentΔCMA ≅ ΔBMN . . . . SAS congruence postulateAC ≅ NB . . . . CPCTCNB = b . . . . substitution property of equality/congruence∠CMN ≅ ∠ BMA . . . . vertical angles are congruentΔCMN ≅ ΔBMA . . . . SAS congruence postulateAB ≅ NC . . . . CPCTCNC = c . . . . substitution property of equality_____
* The proof is "dirty" only in that the theorem "if the midpoints of the diagonals of a quadrilateral are coincident, then that quadrilateral is a parallelogram" is not one usually available to cite in proofs. The "more formal" proof here essentially proves that the quadrilateral is a parallelogram.
HELP ME ONLY SMART PEOPLE CAN ANSWER IT!!!!!!
PLEASE HELP THANK YOU:
What is the measure of the angle that is supplementary to
a) 77° _______
a) 45° ________
a) 63° ________
a) 75° ________
Thank you so much! I appreciate it! :D
Answer:
a)13
a)45
a)27
a)15
Step-by-step explanation:
The figure below is cut into 20 equal parts.
Shade 95% of the figure.
Pls help It says select all thx:)
Answer:
A and D
Step-by-step explanation:
They both equal 3 feet
The system has infinitely many solutions. Rearranging the left side of the 2nd equation and subtracting 3a from both sides gives −ax + ay = _____a. Dividing both sides by −a gives x − y = _______. So, the equations describe the same line. Because every point on the line is a solution of the equation, and thus of the system, there are infinitely many solutions.
HELPPPP PLZZ DUEE TODAYY PLZZZ
Answer:
https://web.williams.edu/Mathematics/sjmiller/public_html/105/hwsolns/HWSolns_Math105_Sp2013.pdf click the link
Step-by-step explanation:
More Questions! Enjoy!
Answer:
1. ?
2. 1/10
3. 1/8
Step-by-step explanation:
number 3 result in decimals is 0.125
This is also with the other one sorry I just don't get it:
-8x = -64
50 = -(1/8)p
-90 = 8 + y
if someone can help me please help me.
Answer:
x = 8
p = -400
y = -98
Step-by-step explanation
-8x = -64
Divide both sides by -8
x = 8
50 = -(1/8)p
Divide both sides by -(1/8)
p = 50/-(1/8)
p = -400
-90 = 8+y
Subtract 8 from each side
y = -98
Which products are correct?
A)
(10)(2)-12) = 240
B)
(-9)(-8)(2) = 144
(-10)(7)(3) = -210
D)
(-5)(-3)(6) = -90
E)
(-1)(-1)(-1)(-1) = 1
Answer:
x² + y² = 16
Step-by-step explanation:
ya
Question below pls hurry it’s timed
Answer:
40ft perimeter
Step-by-step explanation:
Hope this helps
Lets see who can do this one!
Answer:
Ball 3
ice block
Step-by-step explanation:
Find the quotient. 2.7/9 =
Answer:
2.7/9=0.3 this is the answer.
Answer: 0.3
Step-by-step explanation:
Divide
[tex]2.7/9[/tex]Please help I dont understand,Will give brainly
Answer:
4. 2/11 < 9/10 5. 3/5 < 1/4 6. 2/3 > 4/6
Step-by-step explanation:
Hope this helped :)
Simplify each expression below plz i really need this
Answer:
1. (1m - 6) 2. (-2w + 5z - 5) 3.(-3d - 6)
Step-by-step explanation:
Ronny wants to know how often the average resident of his town eats out. He surveys 45 people as they leave the restaurant. Identify the sampling method.
Answer:
Ronny would use a bar graph.
Step-by-step explanation:
Using a bar graph would show Ronny exactly how often his residents would eat out.
PLS HELP!!
Which statement correctly describes the relationship between the diameter and circumference of a circle?
A.
The ratio of a circle's circumference to its diameter is equal to π.
B.
The ratio of a circle's diameter to its circumference is equal to π.
C.
The sum of a circle's diameter and its circumference is equal to π.
D.
The difference between a circle's circumference and its diameter is equal to π.
B. The ratio of a circle's diameter to its circumference is equal to π.
What are the circumference and diameter of a circle?The circumference of a circle is the distance around the circle which is 2πr.
The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.
We know the diameter of a circle is 2r and the circumference of a circle is 2πr.
∴ The correct statement about the relationship between the diameter and circumference of a circle is The ratio of a circle's diameter to its circumference is equal to π.
As diameter : circumference = 2πr : 2r.
learn more about circles here :
https://brainly.com/question/11833983
#SPJ2
Jennifer competed on her school’s track team as a high jumper. To advance to the final round, she must successfully jump 4 1/2
feet or higher. If h represents the height of Jennifer’s jumps, which inequality represents this?
A. h>4 1/2
B. h≥4 1/2
C. h<4 1/2
D. h≤4 1/2
Answer:
its going to be B im doing this too in math
Step-by-step explanation:
help ? please im kinda stuck
Answer: the answer is 100
Step-by-step explanation: you multiply 25 and 4 to get 100.
Answer:
There should be a total of around 18-19 tomatoes and around 6 cucumbers
or 6.25 cucumbers and 18.75 tomatoes. read explanation/
Step-by-step explanation:
If you divide 25 by 4 it equals 6.25. There is your number of cucumbers, but i wasn't sure if the problem allowed decimals. then subtract 6.25 from 25 and you have 18.75
Can someone give the answer to H
A cyclist accelerates from rest at a rate of 7.0 m/s2. How long will it take the cyclist to reach a speed of 18 m/s?
(Its really a subject for science, but I didn't want to put the wrong thing)
9514 1404 393
Answer:
2 4/7 seconds
Step-by-step explanation:
Velocity and (constant) acceleration are related by ...
v = at
Filling in the numbers, we can solve for t:
18 m/s = (7 m/s²)·t
t = (18 m/s)/(7 m/s²) = (18/7) s = 2 4/7 s
It takes the cyclist 2 4/7 seconds (about 2.57 seconds) to reach 18 m/s.
_____
Comment on the subject
Problems involving position and its derivatives can reasonably be posted in the Math section. When energy or mass get involved, the Physics section is a better place. The relevant formulas for those are not always covered in algebra classes.
The point where the graphs of two equations intersect has y-coordinate 2. One equation is y="-" 3x+5. Find the other equation if its graph has a slope of 1.
Answer:
y = -3x + 5
Let y = 2
2 = -3x +5
-3 = -3x
x = 1
(1, 2)
y = mx + b
y = 1x + b
2 = 1 + b
b = 1
y = x + 1
Answer:
The equation of the line is y= x + 2
Step-by-step explanation:
A group of students formed a circle during a game. The circumference of the circle was about 43.96 feet, and the diameter of the circle was 14 feet.
Which expression best represents the value of [tex]\pi[/tex] ?
Answer:
14 x pi = 43.96
Step-by-step explanation:
help me with this if you know this
Answer:
J=94x
Step-by-step explanation:
Please mark brainliest.
Answer:
J. y = 94x
Step-by-step explanation:
You need to divide 470 by 5
A rectangular picture frame has an area of 45 square inches. If it has a length of 7 and 1/2 inches, what is its width?
Answer:
6Step-by-step explanation:
To find the width/length when you know the area and the length or width, you just divide the area by the known side.
45/7.5 = 6
Can someone plz help me with this one problem plz!!!!
Step-by-step explanation:
Yeah the the answer is yess........
Plz help and show work. Whoever gets the right answer gets Brainliest
Answer: it is C
Step-by-step explanation: answer C
Answer:
C) 40
Step-by-step explanation:
The area of the shaded region is the difference between the area of the entire polygon and the area of the unshaded part inside the polygon.
The side length of one side of a triangle is 2x -2, the second side is 2x + 3. What is the length of the third side if the perimeter is 6x +3?
Answer:
2x + 2
Step-by-step explanation:
2x -2 + 2x + 3 is equal to 4x + 1 to make it 6x + 3 you need to add 2x to the term 4x and you need to add 2 to the term 1 so
2x + 2
Answer:
si a 2 multiplicamos -2seria -4 hací que si multiplico 2 por +3seria +9 hací que seria +3731.56898534
Help me please like right know please
Answer:
D
Step-by-step explanation:
Answer: The answer is D
I really do hope this is the answer but I am really sorry if this is wrong
Step-by-step explanation:
the main equation would be
210+3x>288
first I divided 210 by 3 to see how many mugs he has sold first. Then I got an answer of 70 mugs sold. after that i subtracted 210 from 288 and got 78. After this I divided 78 by 3 to get a count of how many mugs Ronny needs to sell. so The total amount of mugs Ronny needs to sell to reach his goal of 288$ is 96. But he has already sold 70 so he needs to sell 26 more mugs.
On Monday, a museum had 150 visitors. On Tuesday it had had 260 visitors. Estimate the percent change in the number of visitors to the museum.
About how many people would have to visit the museum on Wednesday to have the same percent change from Tuesday to Wednesday as from Monday to Tuesday? Explain your answer. help now
Answer:
110% change and 370 people
Step-by-step explanation:
plllssssssssssssssssssshelp and quick! first gets brainliest!!!!!
Answer:
The answer is 3
Step-by-step explanation:
0.6x = 0.3x + 0.48 + 0.42
0.6x = 0.3x + 0.9
0.6x - 0.3x= 0.9
0.3x = 0.9
x = 0.9/0.3
x=3