Order of operations: 1 perform operations inside parentheses.
2 Multiply and divide from left to rigth
3 Add and subtract from left to right
solve:
1 (3/8+1/4) x16
2 72 divided by (7-1) x 3
3 5/6 - 4 x 1/12
4 32 divided by (2.3 +1.7) x 3
5 (6.3 - 5.1) x (0.7+0.3)
6 1/2 x 1/2 divided by 1/2

1. 10

2. 4

3. 0.51

4. 2.67

5. 1.2

6. 0.5

Step-by-step explanation:

1. 3/8 + 2/8 = 5/8 = 0.625

0.625 * 16 = 10

2. 7 - 1 = 6

6 * 3 = 18

72/18 = 4

3. 1/12 = 0.08

4 * 0.08 = 0.32

5/6 = 0.83

0.83 - 0.32 = 0.51

4. 2.3 + 1.7 = 4

4 * 3 = 12

32/12 = 2.67

5. 6.3 - 5.1 = 1.2

0.7 + 0.3 = 1

1.2 * 1 = 1.2

6. 0.5 * 0.5 = 0.25

0.25/0.5 = 0.5

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)

9) i can't see the angle so whatever it is just do this: cos(angle) x hypotenuse and then use that answer and they hypotenuse and plug it into this: (answer you just got)^2 + b^2 = (hypotenuse)^2. the first answer will be the answer of the adjacent side and the second answer after this equation will be the opposite side.

10) y = 14 x = √147 or 12.12435565

11) x = 4.8

12) x = 4.2

13) x = 9.3

14) pq: 13.2

qr : 17.6

angle p: 53º

15) angle c: 54.3º

angle a: 35.7º

16) h = 21040

v = 1841

step-by-step explanation:

10) 7/sin(30) = 14 = y

7^2 + b^2 = 14^2

49 + b^2 = 196

b^2 = 196 - 49

√b^2 = √147

x = √147

11) cos(70) x 14 = 4.788282007

x = 4.8

12) tan(25) x 9 = 4.196768923

x = 4.2

13) sin(31) x 18 = 9.270685348

x = 9.3

14) pq: sin(37) x 22 = 13.23993051

pq: 13.2

qr: cos(37) x 22 = 17.56998122

qr : 17.6

angle p: 180 - (37 + 90) = 53º

15) cos-1(7/12) = 54.31466529

angle c: 54.3º

angle a: 180 - (90 + 54.31466529) = 35.68533471

angle a: 35.7º

16) 4 x 5280 = 21120

cos(5) x 21120

h = 21039.63202

h = 21040

sin(5) x 21120

v = 1840.729287

v = 1841