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nirvana33 [79]
3 years ago
11

What is the value of x? Enter your answer in the box. __mm

Mathematics
1 answer:
VashaNatasha [74]3 years ago
6 0
You can set up a ratio as follows:
\frac{x-22}{87.5}= \frac{22}{77}

Solve for x by cross-multiplying:
(x-22)(77) = (87.5)(22)
x = \frac{(87.5)(22)}{77} + 22= 47.01

Since we need the answer in mm and right now we have it in feet, we need a conversion ratio. After googling it, the conversion ratio is: 1ft = 304.8mm
47.01(304.8) = 14326.64

So, the answer is 14326.64 mm.

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Problem 2.9 a runner completes the 200-meter dash with a time of 20.19 seconds. part a what was the runner's average speed in me
Elina [12.6K]

Answer:

Average speed = 9.91 m/s

Explanation :

Total distance covered by a runner = 200 m

Time taken to complete this distance = 20.19 sec

We need to find the average of runner speed in meter/sec

We use the speed,  distance, time formula

speed = \frac{distance}{time}

speed = \frac{200}{20.19}

Average speed = 9.91 m/s

that's the final answer.

I hope it will help you.



8 0
3 years ago
Evaluate the series 9 + 3 + 1 + . . .
brilliants [131]
Keep dividing by 3 to get the rest of the answers.
7 0
3 years ago
Read 2 more answers
Write an equation in point-slope format of the line having the given slope that contains the given point.
marta [7]
1) y + 1 = (1/4)(x - 3)
2) y - 6 = 0(x + 2)
3) y - 3 = -1(x + 2)
4) y + 7 = -2(x + 6)
3 0
3 years ago
Can someone do 11??? Please help I don’t want to fail my class
jolli1 [7]
<h3>Answer: choice A) </h3><h3>tan(Y) = 6/7 and tan(Z) = 7/6</h3>

Recall that the tangent of an angle is equal to the ratio of the opposite over adjacent sides

tan(angle) = opposite/adjacent

For reference angle Y, the opposite side is XZ = 6 and the adjacent side is XY = 7, so,

tan(Y) = XZ/XY = 6/7

For tan(Z), things will swap. The opposite side is now XY = 7 and the adjacent side is now XZ = 6

tan(Z) = XY/XZ = 7/6

We do not use the hypotenuse sqrt(85) at all in this problem because the tangent ratio does not involve the hypotenuse.

4 0
3 years ago
Find the solutions of each equation on the interval [0, 2π)<br>​
Schach [20]

Answer/Step-by-step explanation:

Factor this. GCF=2

2(2cos2x+cos x-1)=0

2(2cos x -1)(cos x+1)=0 Set each factor equal to zero and solve

2cos x -1=0 Add 1 to both sides

2cos x =1 Divide by 2

cos x =1/2

x=π/3

x=5π/3

cos x+1=0 Subtract 1 from both sides

cos x=-1

<u><em>x = π</em></u>

<u><em></em></u>

4 0
3 years ago
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