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3 years ago

Evaluate 2/3 times -4 times 9 divided by -2 divided by 1/2

Mathematics

2 answers:

Ostrovityanka [42]3 years ago

4 0

Answer:

Evaluated: 2/3 (or 0.6 repeating) -4 • 9 ÷ -2 ÷ 1/2 (or 0.5)

Equals: 36.6 (.6 is repeating)

Step-by-step explanation:

Just simplify the fractions and solved with calculator :)

SOVA2 [1]3 years ago

4 0

Answer: 24 Explanation: You would have to use PEMDAS for this. First, you would multiply -4 x 9 to get -36 then you would multiply that by 2/3 to get -24. Next you would divide -24 by -2 and that would get you a positive 12. Finally you would divide 12 by 1/2 and that would give you 24. Hopefully this makes sense. Heres my work for it too.

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Simplify the expression to a + bi form:<br> (2 – i) – (-4+8i)

Ne4ueva [31]

Answer:

6-9i

Step-by-step explanation:

(2-i)-(-4+8i)

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8 0

3 years ago

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What is the range of the following data 7, 5, 9, 10, 1, 2, 2, 8

eduard

Answer:

Step-by-step explanation:

The range is the biggest number minus the smallest number

The biggest number in this set is 10

The smallest number is 1

10-1=

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3 years ago

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rusak2 [61]

Answer:

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Step-by-step explanation:

6 0

3 years ago

1. 2(H-8)-h=h-16

podryga [215]

(1) C and (2) D

(1)

distribute the left side of the equation

2h - 16 - h = h - 16 ( simplify left side )

h - 16 = h - 16

Since both sides are equal, any value of h will make the equation true.

Hence there are infinitely many solutions to the equation → C

(2)

3 + 6z = 13 + 6z ( subtract 6z from both sides )

3 = 13 ← not possible

Hence there are no solutions to the equation → D

8 0

3 years ago

Explain whether the following given sets are closed under addition:

Ivan

Answer:

Step-by-step explanation:

a) Yes.

$\forall\ a,b\ \in\ B,\ a+b\in B\ (since\ 0+0=0)$

b) Yes

$W=\{0,1,2,3,..,\}\ (whole\ numbers)\\\forall\ a,b\ \in\ 3W,\ a+b\in 3W\\since:\\a\ \in\ 3W \Longrightarrow\ \exists\ k_1\in W | a=3*k_1\\\\b\ \in\ 3W \Longrightarrow\ \exists\ k_2\in W | b=3*k_2\\\\a+b=3*k_1+3*k_2=3*(k_1+k_2) \in 3W\\$

c) Yes

$\forall n\ \in\ \mathbb{N}: \Longrightarrow\ n+1 \in\ \mathbb{N}\\$

d) No

$3\in V , 3+3=6\notin V\\$

7 0

3 years ago