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Semmy [17]
3 years ago
13

Can someone help me with these 3 questions please

Mathematics
1 answer:
Alex_Xolod [135]3 years ago
3 0
#1 is 2 #2 is 6 i dont know 3
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The equation for a circle is ​x^2 − 8x + y^2 - 2y - 8 = 0
Ivanshal [37]

Answer:

B

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

To obtain this form use the method of completing the square

Given

x² - 8x + y² - 2y - 8 = 0 ( add 8 to both sides )

x² - 8x + y² - 2y = 8

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

x² + 2(- 4)x + 16 + y² + 2(- 1)y + 1 = 8 + 16 + 1

(x - 4)² + (y - 1)² = 25 → B

6 0
3 years ago
Solve the equation 3p + 10 = 28 for p. A.2 B.4 C.6 D.7
Dvinal [7]

Answer:

3p+10=28

-10        -10

3p=28-10

3p=18

p=18/3

p=6

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The following ratios form a proportion 6/8 * 10/12 true or false​
yawa3891 [41]

Answer:

false

Step-by-step explanation:

10/12 is 5/6 and 6/8 is 12/16 that's the closest whole number proportionality also, it would both have a difference of 2

5 0
3 years ago
Pam and Jim were inspired by the most recent Space Xrocket launch (pictured below) and decided to build a rocket of their own. A
Anastaziya [24]
I can’t see that please try again
3 0
2 years ago
0.000000000093 in scientific notation
Inga [223]

no because like he said you have to move the decimal places



6 0
3 years ago
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