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ella [17]
3 years ago
14

1+3to the 2 power •2-5

Mathematics
1 answer:
beks73 [17]3 years ago
5 0

Well first following pemdas we do 3 to the 2nd power so 3*3 = 9

then we do 9 * 2 = 18

then our problem looks like this 1 + 18 - 5

so 1 +18 = 19

then 19 - 5 = 14 so our answer is 14

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Segment PH is graphed on the coordinate grid where P is (-31,8) and H is (29,-10). Point E is the midpoint of segment PH. If poi
maks197457 [2]

Answer:

The coordinates of point A are (-11 , 2)

Step-by-step explanation:

- The coordinates of point P are (-31 , 8)

- The coordinates of point H are (29 , -10)

- Point E is the mid-point of segment PH

- The coordinates of the the mid-point are:

→ x=\frac{x_{1}+x_{2}}{2} and y=\frac{y_{1}+y_{2}}{2}

∵ E is the mid-point of segment PH

∴ The x-coordinate of point E is x=\frac{-31+29}{2}=-1

∴ The x-coordinate of point E is -1

∴ The y-coordinate of point E is y=\frac{8+-10}{2}=-1

∴ The y-coordinate of point E is -1

∴ The coordinates of point E are (-1 , -1)

- Point A is graphed \frac{2}{3} of the way along the segment from P to E

- That mean the distances from points P to A is 2 parts and from P to E

  is 3 parts, then the distance from A to E is "3 - 2" = 1 part

- So point A divides the line segment PE at ratio 2 : 1 from P

- The coordinates of the division point are:

→ x=\frac{x_{1}m_{2}+x_{2}m_{1}}{m_{1}+m_{2}} and y=\frac{y_{1}m_{2}+y_{2}m_{1}}{m_{1}+m_{2}}

∵ Point A divides PE at ratio 2 : 1

∵ The coordinates of point P are (-31 , 8)

∵ The coordinates of point E are (-1 , -1)

∴ The x-coordinate of point A is x=\frac{(-31)(1)+(-1)(2)}{2+1}= -11

∴ The x-coordinate of point A is -11

∴ The y-coordinate of point A is x=\frac{(8)(1)+(-1)(2)}{2+1}=2

∴ The y-coordinate of point A is 2

∴ The coordinates of point A are (-11 , 2)

* The coordinates of point A are (-11 , 2)

3 0
3 years ago
Seven fifths of a number, z, subtracted from 6 times the same number is 3 .
Alex_Xolod [135]
6z-7z/5=3

(30z-7z)/5=3

30z-7z=15

23z=15

z=15/23
8 0
3 years ago
How to solve for b = -1 -7a when the input,a, is 6
azamat

Answer:

-43

Step-by-step explanation:

Input 6 where a is so then do -7 x 6 which would be -42

the equation is now b = -1 - 42

-1 -42 = -43

8 0
3 years ago
When 0.3(4x - 8) - 0.5(2.4x + 4) is simplified what is the resulting expression?
LUCKY_DIMON [66]
0.3(4x-8)-0.5(2.4x+4)
1.2x-2.4-1.2x+2
x-0.4
4 0
3 years ago
Pls helpp I will mark brainlist CHOOSE 2 ANSWERS !! :))
Sergeeva-Olga [200]
The correct answers are A and D
3 0
3 years ago
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