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3 years ago

Help me with these 3 questions..?

Mathematics

2 answers:

Licemer1 [7]3 years ago

7 0

The answers are D, A, and C

zepelin [54]3 years ago

6 0

Option 1
y = 3x when x = 0 y = 0, x = 1/3 y = 1 and x = 10 y = 30

answer is 0,1,30 (last choice)

Option 2
x = 4 y = 2

answer: the output is 2 less than the input (answer is A. first one)

Option 3

answer is 300 (third choice)

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Dave wants to buy a table saw that is worth $291. How much change will he receive if he pays with $300 cash?

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4 years ago

Calculate the length b to two decimal places.

Andrej [43]

Answer:

B. 21.64

Step-by-step explanation:

We have been given a triangle and we are asked to find the length of AC (b).

We will use law of cosines to find the length of side AC.

$c^{2}=a^{2}+b^{2}-2ab \text{ cos }\theta$

Upon substituting our given values in the formula we will get,

$(AC)^{2}=15^{2}+12^{2}-2\times 15\times 12 \text{ cos}(106)$

$(AC)^{2}=225+144-360\text{ cos}(106)$

$(AC)^{2}=369-360(-0.275637355817)$

$(AC)^{2}=369+99.22944809412$

$(AC)^{2}=468.22944809412$

Upon taking square root of both sides of our equation we will be get,

$AC=\sqrt{468.22944809412}$

$AC=21.6386101238993629\approx 21.64$

Therefore, the length of b is 21.64 and option B is the correct choice.

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3 years ago

What is 22 divided by 2,715

Irina18 [472]

Answer:

0.0081031308

Step-by-step explanation:

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