Step-by-step explanation:
we know ,
area of circle =πr^2
hence we get from the figure that the diameter of circle is 19 cm and we can find radius
r=d/2
r=18/2=9cm
area of semicircle =πr^2/2
area of Semi circle equals to =22*(9)^2/7/2
=127.2857143
Answer:
Today: Sunday, 11 October 2020
Hour: 23.05 WIB (Indonesian)
_________________________
D = 18
r = 18 ÷ 2 = 9
area of semicircle = πr²/2
area of semicircle = 3.142 . 9²/2
area of semicircle = 3.142 . 81/2
area of semicircle = 254.502/2
area of semicircle = 127.251 cm²
What is cos(3π)?
1
0
-1
-2
Answer:
cos(3π) is 0.986 which rounds to 1
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
edge 2020
I REALLY NEED HELPPPPP!! Write a paragraph proof for the following conjecture:
Given: m∠ 1 + m∠ 2 = m∠ 4
Prove: m∠3 + m∠1 + m∠2 = 180
Answer:
Given: measure 1 + measure 2 = measure 4
measure 4 + measure 3 must be 180 degrees because they are supplementary
If measure 4 + measure 3 is 180, and measure 1 + measure 2 = measure 4, we can substitute measure 4 in the first equation for measure 1 + measure 2.
Therefore, we arrive at the answer measure 1 + measure 2 + measure 3 = 180.
I really hoped this helped, and if it did, please consider giving me brainliest.
please help this is timed
Answer:
66 degrees
Step-by-step explanation:
I dont remember the name of this law but ik its right
Find the smallest value of p
such that 36p is a perfect cube.
Answer:1
Step-by-step explanation: 36(1)=36 and the square root of 36 is 6
6x6=36
Answer:
1
Step-by-step explanation:
With the equation 3z + 3 = 22 + 6, the value of z is
please help me im despreate
Answer:
The answ is B
Step-by-step explanation:
Remember. Why is it called parallelogram. Look at the first section of the word parallelogram. You can see “parallel.” Rhombus has 4 parallel lines that are diagonal to each other.
Which of the following is a line that is
perpendicular to y
2 and passes
through the point (-2,4)?
y - 4= 1/3 (x + 2)
y - 4= -3(x+2)
y - 4= -3(x - 2)
y - 4= 3(x + 2)
Answer:
y - 4= -3(x - 2)
I'm 101% sure
What is the solution to this system of linear equations?
y − x = 6
y + x = −10
a. (−2, −8)
b. (−8, −2)
c. (6, −10)
d. (−10, 6)
Answer:
B: (-8,-2)
you add the equation to solve the first variable, then plug in the values to the other equation to find the last variable
good Luck!!!
Graph the following system of equations. Click on the graph until the correct one appears.
y > x
y ≤ -x + 2
(look at attached pictures)
Answer:
pic 2
Step-by-step explanation:
3x2 + 8x - 10
Please someone help ...
You buy a sandwich for $ 3.55 an apple for $0.65 and a bottle of juice for $2.45.What is the total cost?
The total cost of your items is $6.65. When asking for the total cost, they are asking you to add the values.
3.55 + 0.65 + 2.45 = 6.65.
f(x)+-3x+5 for f(-2)
Answer:
f(-2)=11
Step-by-step explanation:
f(-2)=-3(-2)+5
=6+5
=11
what do the differences between the points represent
Answer:
The point represent the difference between the two sides that what are different between them.
Please help with this problem
Answer:
ok its 45
Step-by-step explanation:
No problem
Answer:
the 48 oz becuase it more then the others and its cheaper
Step-by-step explanation:
(3) (-9) what is the answer
Answer:
-27
Step-by-step explanation:
Positive times negative is always a negative or use a calculator
If a point (x,y) is rotated 90 degrees counterclockwise around the origin, what will the resulting coordinate be?
Answer:
Step-by-step explanation:
90 degrees clockwise will result in a (+,+) answer.
90 degrees counterclockwise will result in a (-,+) answer.
Think of your quadrants.
Quadrant 1 the answer will be (+,+)
Quadrant 2 the answer will be (-,+)
Quadrant 3 the answer will be (-,-)
Quadrant 4 the answer will be (+,-)
It all depends where you are starting, so if you have to go counter clockwise from the third quadrant, your answer will be a coordinate that is (+,-).
I wish you would have shared more information, but I hope this helps.
Answer:
(a) AB
Step-by-step explanation:
If 2y+2w=x, then w, in terms of x and y, is equal to
Answer:
w=-y+1/2x
Step-by-step explanation:
Its literal equations, so just solve like any other variable equation. Set your w value to the equal, and isolate the said variable
The first four terms of a sequence are show below. 3, 9, 27, 81.. Which function models this sequence?
A) 3^n,
B) 3^n-1
C)3n
D)9(-3)^n-1
Please help
$haA graph has time (years) on the x-axis and height (inches) on the y-axis. A line goes through points (2, 3) and (4, 6). The graph shows a linear relationship between the height and years of a plant’s growth. Find the rate of change. Select all that apply. The rate of change of a linear function is always the same. The rate of change of a linear function increases as the input increases. The rate of change from 2 years to 4 years on the graph is 1.5 inches per year. The rate of change from 0 years to 6 years on the graph is 1.5 inches per year.
Answer:
The rate of change of a linear function is always the same.
The rate of change from 2 years to 4 years on the graph is 1.5 inches per year.
The rate of change from 0 years to 6 years on the graph is 1.5 inches per year.
Step-by-step explanation:
Vote brainiest
Solve: - 4x +3<-9
idk tbh
Answer:
[tex]x > 3[/tex]
Step-by-step explanation:
Luckily for our brains, inequalities work very similar to equations when solving. Let's get on it.
First, we need to subtract 3 from both sides to isolate the -4x (this means we can then divide to get x by itself).
Which leaves us with [tex]-4x<-12[/tex].
Now we need to divide both sides by -4. Here's the thing - with inequalities, when we divide both sides by a negative, the sign flips! So after doing this simplification, our inequality looks like this: [tex]x > 3[/tex]
And there's your answer. :)
Answer:
x>3
Step-by-step explanation:
please help urgent easy 8th grade math
Answer:
No Solution
Step-by-step explanation:
8x-3(1+6x) -2>5(1+2x)
-10x-5>-5-10x
(Add 5 to both sides)
-10>-10x
(Add 10x to both sides)
-10x+10x>-10x+10x
Therefore , this equation has no solutions.
Answer:
-1=x
Step-by-step explanation
8x-3(1+6x)-2> 5(1+2x)
8x-3(7x)-2>5(3x)
8x-21x-2>15x
13x-2>15x
-13 -13
-2 2x
2 2
-1 x
Find the next two numbers in the pattern.
−12,60,−300,1500
the pattern is
multiplied by -5
so...
1500 *-5 = -7500
-7500*-5 = 37500
hope this helps
Answer:
-7500,37500 are next two numbers in the pattern
$98.45 − $10.63 + $2.82 − $20.26
Answer:
70.38
Step-by-step exp7lanation:
$98.45 − $10.63 + $2.82 − $20.26 = 70.38
Answer:70.38
Step-by-step explanation:
is this true the square root of a positive number is always less than the half of the number itself
Step-by-step explanation:
yes ........................................ ..
I NEED HELP PLEASE HELP ME
Answer:
4 squares?
Step-by-step explanation:
Help me ASAP WILL GIVE BRAINLIEST AND 5 STAR RATE (not a real test)
Answer:
y = -2
Step-by-step explanation:
y-intercept is the point of y at which x is zero
so it is (0,-2) when y= -2
Hope it helps!
WILL MARK BRAINLIEST
Jerome has read 50 pages of a novel. He plans to read a certain number of pages, p, each day from Monday to Friday. Which inequality shows that Jerome wants to have read at least 85 pages by the end of the day on Friday?
A. 50 + 5p ≥ 85
B. 50 + 5p ≤ 85
C. 5 (50 + p) ≥ 85
D. 5 (50 + p) ≤ 85
Answer:
There ya go
Step-by-step explanation:
If Jerome wants to have read at least 85 pages by the end of the day on Friday, then the inequality that represents the situation will be 50 + 5p≥ 85
Given that the number of pages he read each day is "p", the number of pages he will read from Monday to Friday is 5p (Monday to Friday is 5 days)If he has read 50 pages of a novel, the total number of books he has read will be 50 + 5pIf Jerome wants to have read at least 85 pages by the end of the day on Friday, then the inequality that represents the situation will be 50 + 5p≥ 85
Learn more here: https://brainly.com/question/15816805
if you are given two coordinate points, you need to first find the?
Answer: First you need to find the first point on the coordinate graph..which would be x then y. Remember run before you jump.
Step-by-step explanation:
The first point on the coordinate graph, x, must be identified first. Remember to run before you jump.
What is the coordinate points?A set of variables that accurately depicts a position. On a graph, the first number represents the distance along, and the second number represents the distance up or down. For example, the point (12,5) is 12 units down and 5 units up.
A coordinate plane is an organizing structure for graphing and describing lines and points. The coordinate plane is made up of a vertical (y) axis and a horizontal (x) axis. The coordinate plane is divided into four quadrants. The origin is where these lines intersect (0, 0).
A pair of numbers that use the horizontal and vertical separations from the two reference axes to define a point's location on a coordinate plane. typically expressed by the x-value and y-value pair (x, y).
To learn more about coordinate points refer to:
https://brainly.com/question/11337174
#SPJ2
HELP PLEASE!!! I dont get this and its due in 5 minutes
If y varies directly with x and y=−54 when x=−20, then which equation best represents this proportional relationship?
1. ) y = 0.37x
2.) y = 2.7x
3.) y = -0.37x
4.) y = -2.7x
Pour tout réel x, on pose : f(x) = -2x²+4x+6. Vérifier que (-1) est une racine de ce polynôme f. On sait que l'axe de symétrie de la parabole qui représente f est la droite d'équation : x=1. Déduire de cette information l'autre racine du polynôme f. Factoriser le polynôme f. Aidez-moi svp meci d'avance
Explication étape par étape:
Étant donné la fonction polynomiale f (x) = -2x² + 4x + 6. Pour vérifier si f (-1) est un facteur de l'expression, nous devons montrer que f (-1) est équivalent à zéro. S'il est nul, donc x + 1 est un facteur du polynôme.
Preuve
f (x) = -2x² + 4x + 6
f (-1) = -2 (-1) ² + 4 (-1) +6
f (-1) = -2 (1) -4 + 6
f (-1) = -2-4 + 6
f (-1) = -6 + 6
f (-1) = 0
Puisque f (-1) = 0, donc x + 1 est un facteur du polynôme.
Ensuite, il faut obtenir l'autre racine du polynôme. Pour obtenir cela, nous devons factoriser la fonction polynomiale donnée.
Soit f (x) = 0
-2x² + 4x + 6 = 0
multiplier par -1
2x²-4x-6 = 0
diviser par 2
x²-2x-3 = 0
x²-3x + x-3 = 0
x (x-3) +1 (x-3) = 0
(x + 1) (x-3) = 0
x + 1 = 0 et x-3 = 0
x = 1 et x = 3
Par conséquent, l'autre racine du polynôme en dehors de 1 est x = 3