3 years ago

Which of the following statements is false. the sum of two rational numbers is always rational.

Mathematics

1 answer:

djyliett [7]3 years ago

6 0

Answer:

true

Step-by-step explanation:

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Due in 6 hours please help.

miv72 [106K]

Answer:2 and 4 and the second one is 7 and 8

Step-by-step explanation:

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3 years ago

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9 + |-78| - (-22)<br><br> Answer truthfully please.

GuDViN [60]

Answer:

109

Step-by-step explanation:

9 + |-78| - (-22)

Apply the absolute value which states |-x| = x.

9 + 78 - (-22)

Apply the rule that states x - (-y) = x + y.

9 + 78 + 22

Add 9 and 78.

87 + 22

Add 87 and 22.

109.

4 0

3 years ago

Sam's closet contains blue and green shirts. He has eight blue shirts, and seven green shirts. Five of the blue shirts have stri

Bas_tet [7]

Answer: The answer is 80%.

Step-by-step explanation: Let us define the following events.

B = the event that the shirt is blue,

G = the event that the shirt is green

and

S = the event that the shirt is striped.

So, n(B) = 8, n(G) = 7, n(B and S) = 5, n(G and S) = 4.

n(S) = 5 + 4 = 9.

We have

$n(B\cup S)=n(B)+n(S)-n(B\cap S)=8+9-5=12.$

Therefore, the required probability is

$p=\dfrac{n(B\cup S)}{8+7}=\dfrac{12}{15}=\dfrac{4}{5}=0.8=80\%.$

Thus, the answer is 80%.

3 0

3 years ago

If the revenue for the week is $2000, and labor cost consists of two workers earning $8 per hour who work 40hours each, what is

Arada [10]

The percentage of the revenue is 32% hope this helps!

4 0

3 years ago

The positions of two villages A and B. Village B is 100km away and on a bearing of 083° from village A.

blagie [28]

Answer:

23•1

Step-by-step explanation:

83°/360°×100km=23•1

7 0

3 years ago