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3 years ago

What is this? q+2/5 = 2q - 11/ 7 Please help.

1 answer:

4 0

We simplify the equation to the form, which is simple to understand
q+2/5=2q-11/7

Simplifying:
q + 0.4=2q-11/7

Simplifying:
q + 0.4=2q-1.57142857143

We move all terms containing q to the left and all other terms to the right.
+1q-2q=-1.57142857143-0.4

We simplify left and right side of the equation.
-1q=-1.97142857143

We divide both sides of the equation by -1 to get q.
q=1.97142857143

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step by step explanation:

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2 years ago

Anna is swimming against the ocean current. The following equation models her speed: f(x) = x2 − 6x +1, where x is Anna's speed

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2 years ago

Read 2 more answers

Which fraction is equivalent to 56%?

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14 / 45

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3 years ago

Read 2 more answers

How much longer is the distance from the library to the park to the train station than the distance from the library straight to

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Answer:

2.14

Step-by-step explanation:

2.14+3.82= 5.96

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So, your answer would be 2.14

7 0

2 years ago

Which of the following applies the law of cosines correctly and could be solved to find m∠E? ANSWERS: A) cos E = 312 + 392 – 2(3

defon

This question is incomplete because the options were not properly written.

Complete Question

Which of the following applies the law of cosines correctly and could be solved to find m∠E? ANSWERS:

A) cos E = 31²+ 39² – 2(31)(39)

C) 56² = 39² – 2(39) ⋅ cos E

D) 56² = 31² + 39² – 2(31)(39) ⋅ cos E

Answer:

D) 56² = 31² + 39² – 2(31)(39) ⋅ cos E

Step-by-step explanation:

From the above diagram, we see are told to apply the law of cosines to solve for m∠E i.e Angle E

The formula for the Law of Cosines is given as:

c² = a² + b² − 2ab cos(C)

Because we have sides d , e and f and we are the look for m∠E the law of cosines would be:

e² = d² + f² - 2df cos (E)

e = 56

d = 39

f = 31

56² = 39² + 31² - (2 × 39 × 31) × cos E

Therefore, from the above calculation and step by step calculation, the option that applies the law of cosines correctly and could be solved to find m∠E

Is option D: 56² = 31² + 39² – 2(31)(39) ⋅ cos E

8 0

3 years ago