Answer:
44 = b
Step-by-step explanation:
The equation for a circle centered in the point (a, b) and of radius R is:
(x - a)^2 + (y - b)^2 = R^2
Now we start with the equation:
x^2 + y^2 - 4x + 2y = b
First, we can reorder the terms as:
(x^2 + 2*(-2)*x) + (y^2 + 2*y) = b
Now let's complete the squares:
In the first parentheses we can add and subtract 4
(x^2 + 2*(-2)*x + 4 - 4) + (y^2 + 2*y) = b
(x^2 - 2)^2 - 4 + (y^2 + 2*y) = b
Now let's complete the other square, here we need to add and subtract 1.
(x^2 - 2)^2 - 4 + (y^2 + 2*y + 1 - 1) = b
(x^2 - 2)^2 - 4 + (y + 1)^2 - 1 = b
(x^2 - 2)^2 + (y + 1)^2 = b + 1 + 4
Then the radius of this circle is:
R = √(b + 1 + 4)
And we know that R = 7, then:
7 = √(b + 1 + 4)
7^2 = b + 1 + 4
49 = b +5
49 - 5 = b
44 = b
There are 9 roses in a vase of 11 flowers. The rest are daisies.
Answer:
there are 2 daisies
Step-by-step explanation:
Someone seriously help me im tired of the links
H E L P ASAP HELP
!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
See each answer bolded below
Step-by-step explanation:
1. Area of the rectangle is 20 * 30 = 600
Area of the 6 circles is 6(25pi)
150pi/600 = 0.7854
1 - 0.7854 = 0.2146
convert to percentage 21.46%
2. 6/16 -> 3/8
Roughly 38% (37.5)
3. 10/24 = 0.41666666667 or 0.4167
41.66
roughly 42%
4. 12/36 -> 1/3
33.3333
33%
Subtract (7.85.1t) from (2.83.2t). Use the Commutative Property to show the difference another way. Choose the correct difference. A. 1.9t5 B. 51.9t C. 8.3t5 D. 58.3t
USING THE DRAWING BELOW IDENTIFY THE FIGURES REPRESENTED BY THE LETTERS,
A
B
C
E
D
Answer:
If this is the type of question that I think it is then:
A) trapezoid
B) square
C) parallelogram
D) rectangle
E) rhombus
Step-by-step explanation:
If it is not, then I apologize.
Question 2 (10 points)
The supervisor at the bottle factory took a random sample of 17 bottles
manufactured by machine A. He found that 1 bottle in this sample was
defective. If machine A produces 3125 bottles per day, based on the
supervisor's sample about how many defective bottles are produced by machine
A per day?
A) 184
B) 199
C) 189
D) 194
P(A) = 0.75 P(B) = 0.93 P(A and B) = 0.46
a) Find P( A | B )
b) Find P( B | A)
type your answer...
c) Are these events independent or dependent?
you guys are my 911 HELP ILL GIVE POINTS: find the area of the shape shown below
for brainiest:):):):):):):):):):)
Answer:
whaddaheck
Step-by-step explanation:
Answer:
they are all 90 degree angles
Step-by-step explanation:
How to calculate a common fraction
To find a common denominator, multiply each part of a fraction by the denominator of the other fraction. For example, to find a common denominator for 1/3 + 2/5, multiply the 1 and 3 by 5 and multiply the 2 and 5 by 3. You should get 5/15 + 6/15. Then you can calculate the fractions.
I'm not sure if this is what you meant but here
There are 12 navy bikes and 4 brown bikes in your dad's bikeshop.
If you close your eyes and take one bike out of your dad's bikeshop,
what is the probability that the bike will be navy?
Write your answer as a fraction.
Only got a few minutes help
Riley is starting her own laundry business. Riley thinks she will do a better job than her competitors, so she thinks she can charge $16.80 per hour. If she knows she will only be able to work 40 hours per week, how much money will she earn each week?
Answer:
dont copy thos links they are a Scamm
Graph the piecewise function given below. i need help please someone help me
Answer:
hope this help you.look it once.
15 cm
30°
B
OAB is a sector of a circle, centre O.
The radius of the circle is 15 cm.
The angle of the sector is 30°.
Calculate the area of sector OAB.
Leave your answer in its simplest form.
Step-by-step explanation:
change the angle to radian
then use formula 1/2 × π × radius square
Find the sum of the Infinite Series Below. 20 pts.
[tex]{36-24+16- 32/3 +...}[/tex]
Answer: 637
Step-by-step explanation:
Follow the
Symbols like a divide
PLEASE HELP ASAPPP ITS URGENT
Answer:
Step-by-step explanation:
2^-70/4^14
1/(2^70*4^14)
answer is b
9514 1404 393
Answer:
B 1/(2^70·4^14)
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)^c = a^(bc)
a^-b = 1/a^b
__
[tex]\left(\dfrac{2^{-10}}{4^2}\right)^7=\dfrac{2^{-10\cdot7}}{4^{2\cdot7}}=\dfrac{2^{-70}}{4^{14}}=\boxed{\dfrac{1}{2^{70}\cdot4^{14}}}[/tex]
PLS HELP, AM BEING TIMED, WILL give brainliest and it's a test
anyone know the answer to this?????
Answer:
15
Step-by-step explanation:
because you add them all up on god
Answer:
im not good at math
Step-by-step explanation:
Za and Zb are complementary angles. Za measures 55°.
What is the measure of Zb?
Answer:
15
Step-by-step explanation:
hope this helps!
2. Find x to the nearest tenth 10a. 5.8
b. 5.9
c. 8.1
d. 7.3
Answer:
the answer is
c. 8.1.
Step-by-step explanation:
you can add 36 and 10 and then divide it by 180 i think idrk
mhm help me please thanks
Answer:
19
Step-by-step explanation:
Sorry if wrong :> Hope i helped! Have a awesome day!!! You're a great hooman ^_^ Please mark brainliest !!
help please i’ll mark brainliest if it lets me
Answer:
382.5 Inches
Step-by-step explanation:
Hope this helped
Answer:
382.5
Step-by-step explanation:
1 1/5 × 5,+ 5× 3
hope you got that lol
For each triangle, check all that apply.
Answer:
A: Isosceles B: Scalene C: Isosceles, Equilateral D: Scalene
Step-by-step explanation:
A: 2 angles are equal so the sides are (Isosceles)
B: None of the sides are equal (Scalene)
C: All the sides are equal (Isosceles & Equilateral)
D: None of the angles are equal, so none of the sides are (Scalene)
If you can answer this, please help !
Answer:
the total of angle's in traingle is 180
so 85+53+c=180
c=180-138
c=42
Step-by-step explanation:
180° = m∠A + m∠B + m∠C
180° = 85° + 53° + m∠C
180° = 138° + m∠C
m∠C = 180° - 138°
= 42°
#CMIIW
The area of a square is 500" in. What is the perimeter of the square.
Answer:
500
Step-by-step explanation:
Find f(x) = 4*, when x = 1/2
Answer:
f=8
Step-by-step explanation:
fx0.5=4
f=4x2
f=8
Philll weights 120 lb Kim weighs 75% as phill eathan weigh 90% as much as Kim. And Amy weighs 2/3 as much as earthen what is the average weight of them?
Answer:
Step-by-step explanation:
According to a medical study, 15% of people will experience an adverse side effect
within one hour after taking a particular experimented drug. Suppose you survey 12
people who participated in the study. What is the probability at most 2 people will
have adverse side effect?
A)O 0.594
B)0.646
C)0.736
D)0.264
Answer:
c
Step-by-step explanation: trust me
The probability that the people that would have adverse effect are at most 2 is 0.736
What is probability?This is the theory that is used in statistics to explain the chances of an event occuring.
To solve for the probability of at most 2, we solve for 1- P(1) + P(2)
= 1/12 + 2/12
= 1 - 0.083+0.167
= 0.73
Therefore the probability that the most people with adverse effect is 2 is 0.736. Option c is correct.
Read more on probability here: https://brainly.com/question/24756209
-3.5x + 8.5x - 4 =26
Answer:
x = 6
Step-by-step explanation:
-3.5x + 8.5x - 4 = 26
-3.5 + 8.5x = 26 + 4
5.0x = 30
x = 30/5
x = 6
Answer:
x=6
Step-by-step explanation:
First, add -3.5x and 8.5x to combine like terms, which would then look like 5x-4=26.
Next, add 4 to both sides of the equation, which would then be 5x=30.
Finally, divide both sides of the equation by 5 and then simplify.
The final answer would be x=6.
Plz answer this question
mhanifa
Answer:
Option BStep-by-step explanation:
Given function:
H(s) = 0.003s² + 0.07s - 0.027Average rate of change in the interval s = 80 and s = 100:
[H(100) - H(80)] / (100 - 80) = [0.003(100²) + 0.07(100) - 0.027 - 0.003(80²) - 0.07(80) + 0.027] / 20 = 12.2 / 20 = 0.61Correct choice is B. 0.61