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3 years ago

[(40 + 5) − 3^2] ÷ 9 ⋅ 2

Mathematics

2 answers:

Vanyuwa [196]3 years ago

8 0

Answer:

Step-by-step explanation:

1. do what is inside the brackets

40 + 5 = 45

3^2 = 9

45-9 = 36

2. then you divide

[36] ÷ 9 = 4

3. the you multiply

4·2= 8

and 8 is your answer

Hoped i helped!! :)

Margaret [11]3 years ago

4 0

Answer:

Step-by-step explanation:

[(40+5)-3^2)/9*2

Add the numbers

(45-3^2)/9*2

Evaluate the power

(45-9)/9*2

Subtract the numbers

36/9*2

Use rules of multiplication and division to calculate the expression. And your answer is...

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{4}

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Shkiper50 [21]

Answer and Step-by-step explanation:

1-6

What you can do is plug in 6 and start by doing the first machine first, then the second. If this doesn't work, do the second machine, then the first machine.

The order that works is second machine, then first machine.

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b. If we were to do the order of second machine, then first machine, we will never get a negative result (or -5 for that matter), due to the fact that you can't algebraically square root a negative number.

However, if we were to do the order of first machine, second machine, we can get a negative number. To get -5, we plug in 6 for x in the first machine, getting an answer of 1. We plug this into the second machine, getting 1^2 - 6, which results in -5.

1-7. The absolute value of a value is the positive version of that value.

a. |54| = 54

b. $-|-7\frac{3}{5}|$ = $-7\frac{3}{5}$

c. |3| - |-1| = 3 - 1 = 2

d. |2.2 - 5.13| = |-2.93| = 2.93

1-8.

| |

| |

| || || || || |

(5 boxes on each side)

| |

| |

| || || || || || |

(6 boxes on each side)

b. The amount of squares on each side of the figure increases by 1.

c. There would be 1 square, because we know that the pattern is there is 2 squares added to the next figure, 1 at each end. If we go back a figure, we take away 2 squares.

1-9.

a. -42 - 17 = -59

b. 8 - (-9) = 8 + 9 = 17

c. 8(-9) = -72

d. -42 ÷ (-7) = 6

e. -2(-3)(-4) = 6(-4) = 24

f. -18 - 7 = -25

g. $(-5)^{2}$ = 25