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brilliants [131]
3 years ago
15

1. 5 + n2 > 8 2. -4 - 5v 12

Mathematics
2 answers:
pogonyaev3 years ago
8 0
The answer is b ok (*
balandron [24]3 years ago
3 0
I’m pretty sure it’s b if not a
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A radioactive material decays over time. Find k, if
Arturiano [62]

Answer is in the photo. I can only upload it to a file hosting service. link below!

tinyurl.com/wpazsebu

4 0
3 years ago
Find the centre of the circle<br><br> x^2 + y^2 + 4x - 6y = 12
zhannawk [14.2K]

Answer:

centre = (- 2, 3 )

Step-by-step explanation:

the equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k ) are the coordinates of the centre and r is the radius

given

x² + y² + 4x - 6y = 12 ( collect x/ y terms )

x² + 4x + y² - 6y = 12

using the method of completing the square

add ( half the coefficient of the x/ y terms)² to both sides

x² + 2(2)x + 4 + y² + 2(- 3)y + 9 = 12 + 4 + 9

(x + 2)² + (y - 3)² = 25 ← in standard form

with centre (- 2, 3 ) and r = \sqrt{25} = 5

5 0
2 years ago
Braydon brought 13 packages of golf balls for $273.Each package cost the same amount.How much does one package cost? Draw models
Firlakuza [10]

Answer:

Each pack cost $21

Step-by-step explanation:

$273 ÷ 13 = $21

Hope this helps (✿◠‿◠)

6 0
3 years ago
If QS bisects PQT, SQT=(8x-25), PQT=(9x+34), and SQR = 112, find each measure
inna [77]

The value of

  • x = 12°
  • m∠PQS = 71°
  • m∠PQT = 142°
  • m∠TQR = 41°

Given

SQT = (8x₋25) and PQT = (9x₊34)

SQR = 112°

we need to find the x angle and the remaining angles.

we know that QS bisects ∠PQT

⇒ 2(8x₋25)° = (9x₊34)°

(16x ₋ 30)° =  (9x₊34)°

16x ₋ 9x = 34 ₋ 30

x = 12°

substitute x value in the given values of angles.

m∠PQS = (8x ₋ 25)° = (8(12)₋25) = 71°

m∠PQT = (9(12)₊34) = 142°°

m∠TQR = 112° ₋ ∠PQS = 112° ₋ 71° = 41°

hence we get the desired angles from the given angles.

Learn more about Angles here:

brainly.com/question/24839702

#SPJ9

3 0
2 years ago
In each diagram below write the two numbers on the sides of the x that
Margarita [4]

Answer:

y=x xy+2

Step-by-step explanation:

6 0
3 years ago
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