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iogann1982 [59]
3 years ago
10

Which expression is equivalent to 7 3/4 - 1/2

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

7.25 i think?

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(10 POINTS) answer ASAP if you can
erma4kov [3.2K]

Answer:

D

Step-by-step explanation:

Because it's 340 meters per second

5 0
3 years ago
Prove 2/sqrt3cosx+sinx=sec(pi/6-x)
dlinn [17]

Thus L.H.S = R.H.S that is 2/√3cosx + sinx  = sec(Π/6-x) is proved

We have to prove that

2/√3cosx + sinx  = sec(Π/6-x)

To prove this we will solve the right-hand side of the equation which is

R.H.S = sec(Π/6-x)

          = 1/cos(Π/6-x)

[As secƟ = 1/cosƟ)

           = 1/[cos Π/6cosx + sin Π/6sinx]

[As cos (X-Y) = cosXcosY + sinXsinY , which is a trigonometry identity where X = Π/6 and Y = x]

           = 1/[√3/2cosx + 1/2sinx]

            = 1/(√3cosx + sinx]/2

            = 2/√3cosx + sinx

    R.H.S = L.H.S

Hence 2/√3cosx + sinx  = sec(Π/6-x) is proved

Learn more about trigonometry here : brainly.com/question/7331447

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5 0
1 year ago
Solve 32 x 74 = ? + 23 - 72
alekssr [168]
32 x 74 = 2368
23 - 72 = -49
2368 + 49 = 2417
2417 = ?

7 0
3 years ago
Read 2 more answers
Find the median of the data.
kipiarov [429]

Answer:

  • 92.5

Step-by-step explanation:

<u>The data given:</u>

  • 93, 81, 94, 71, 89, 92, 94, 99

<u>Put the data in the ascending order:</u>

  • 71, 81, 89, 92, 93, 94, 94, 99

<u>Since the data size is even, the median is the average of middle two:</u>

  • median = (92 + 93)/2 = 92.5

4 0
2 years ago
#4 find the value of x round answer to the nearest tenth
AnnyKZ [126]

Answer:

Step-by-step explanation:

Since this is a right angled triangle:

tan(∅) = opposite side/adjacent side

In this triangle:

tan(25°) = x/19

x = 8. 86 ≅ 8.9

6 0
3 years ago
Read 2 more answers
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