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podryga [215]
4 years ago
6

Rearrange the equation so u is the independent variable. -12u + 13 = 8w - 3 w = __

Mathematics
1 answer:
deff fn [24]4 years ago
4 0

Answer: w = -3u/2  +  2

Step-by-step explanation:

-12u + 13 = 8w - 3

-12u + 13 + 3 = 8w -3 + 3

-12u + 16 = 8w

w = -3u/2   +   2

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Which relationship is true for the triangle based on the Law of Sines?
Marta_Voda [28]

Answer:

We know the  angle given refers to the length of the opposite side.

Given angle = 82 and the opposite side = 34 so part of the  relationship is

sin 82 / 34 = sin (  ) / ( )

We are also given one side = 27 and that side is opposite angle at C

so that part of the relationship is   sin C / 27

sin 82 / 34 = sin C / 27

3 0
3 years ago
Please help
Schach [20]

Answer:

Hence, option: B is correct (11.02 seconds)

Step-by-step explanation:

Spencer hits a tennis ball past his opponent. The height of the tennis ball, in feet, is modeled by the equation h(t) = –0.075t2 + 0.6t + 2.5, where t is the time since the tennis ball was hit, measured in seconds.

Now we are asked:

How long does it take for the ball to reach the ground?

i.e. we have to find the value of t such that height is zero i.e. h(t)=0.

-0.075t2+0.6t+2.5=0

or 0.075t^2-0.6t-2.5=0

i.e. we need to find the roots of the above quadratic equation.

on solving the equation we get two roots as:

t≈ -3.02377 and t≈11.0238

As time can't be negative; hence we will consider the value of t as t≈11.0238.

Hence it takes 11.02 seconds for the ball to reach the ground.

Hence option B is correct (11.02 seconds).

7 0
4 years ago
Read 2 more answers
Suzette ran and biked for a total of 44.75 mi in 4 h. Her average running speed was 6.5 mph and
vaieri [72.5K]

Suzette ran for 1.5 hours and biked for 2.5 hours.

a. Let x = total hours Suzette ran.

Let y = total hours Suzette biked.

The equation to solve the question will be:

x + y = 4 ....... i

6.5x + 14y = 44.75 ....... ii

b. x + y = 4 ....... i

6.5x + 14y = 44.75 ....... ii

From equation i, x = 4 - y

Put x = 4-y into equation into equation ii

6.5x + 14y = 44.75

6.5(4 - y) + 14y = 44.75

26 - 6.5y + 14y = 44.75

Collect like terms

-6.5y + 14y = 44.75 - 26

7.5y = 18.75

Therefore, y = 18.75/7.5

y = 2.5

Therefore, she bikes for 2.5 hours

Since x + y = 4

x = 4 - y

x = 4 - 2.5

x = 1.5

She ran for 1.5 hours.

Read related link on:

brainly.com/question/24578032

5 0
3 years ago
Read 2 more answers
Will someone please tell me what I got correct and what I got incorrect
alisha [4.7K]

Answer:

all correct

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the value of x in the equation –2.4x = 8.4? –20.16 –3.5 3.5 20.16
ElenaW [278]

Answer: it’s 3.5

Step-by-step explanation:

5 0
3 years ago
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