Flashcards in Test 8, Unit 10 Deck (50)

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1

## Express algebraically. 5 more than x

### 5 + x

2

## Express algebraically. 8 less than n

### n - 8

3

## Express algebraically. 2 more than the product of 4 times m

### 4m + 2

4

## Express algebraically. x squared minus y cubed

### x(tiny)2 - y(tiny)3

5

## the square root of s

### s (with a square root sign over it)

6

## T = 3x + 2 Find T if x = 1

### T = 5

7

## T = 3x + 2 Find T if x = 1/3

### T = 3

8

## T = 3x + 2 Find T if x = 4

### T = 14

9

## 4(3 + 6) - 9 =

###
4(9) - 9 =

36 - 9 =

27

10

## 5 + 3 * (15 - 8) =

###
5 + 3 * 7 =

5 + 21 =

26

11

## (12 - 2 * 3) over 4 =

###
(12 - 6) over 4 =

6 over 4 =

3/2 or 1 1/2

12

## 6 to the 3rd power (cubed)

###
6 x 6 x 6 =

216

13

## 2 to the 4th power

###
2 x 2 x 2 x 2 =

16

14

## 8 squared

###
8 x 8 =

64

15

## square root of 64

###
8

because 8 x 8 = 64

16

## square root of 100

### 10

17

## square root of 25

### 5

18

## x + 4 = 20/2

###
x + 4 - 4 = 10 - 4

x = 6

19

## x - 7 = 3 * 2

###
x - 7 = 6

x - 7 + 7 = 6 + 7

x = 13

20

## 5x = 20

###
x = 20/5

x = 4

21

## 2/3x = 8

###
3/2 * 2/3x = 8 * 3/2

x = 24/2

x = 12

22

## x/4 + 3 = 7

###
x/4 +3 - 3 = 7 - 3

x/4 = 4

x/4 * 4 = 4 * 4

x = 16

23

## 3x - 6 = 12/4

###
3x - 6 + 6 = 3 + 6

3x = 9

x = 3

24

## 19 + (-6) =

###
same as 19 - 6

13

25

## -5 + (-4) =

### -9

26

## 12 - (-9) =

###
same as 12 + 9 (2 negatives cancel making a +)

21

27

## (-6) - (+8) =

### -14

28

## 6(-5) =

###
when multiplying 1 - & 1 + answer is -

-30

29

## -8(-4) =

###
when multiplying 2 - answer is +

32

30