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2 years ago

A support cable connects the top of a bridge tower to the road below.

Mathematics

1 answer:

levacccp [35]2 years ago

6 0

Answer:

the road is 142 ft away from the center of the bridge tower.

Step-by-step explanation:

Since, the bridge tower is standing vertical to the the road, therefore, the angle made by it is a right angle.

Therefore, the triangle made by cable(hypotenuse) and bridge tower (Perpendicular) on road (base) must be a right angled triangle.

Therefore, by Pythagoras theorem, we have

H² = P²+ B²

P²=H²-B²

P²=(245.9)²-(200.7)²

P=√20186.32=142.07

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Which is an equation of the line that passes through the points (-6,-8) and (4,-4)

natita [175]

Answer:

y= $\frac{2}{5}$ x-6.5

Step-by-step explanation:

$\frac{(-8)-(-4)}{(-6)-4} \\$ = $\frac{-4}{-10}$ = $\frac{2}{5\\}$

y=mx+b

-8 = ( $\frac{2}{5}$ ) (-6) +b

-8 = - $\frac{12}{8}$ +b

b= -6.5

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2 years ago

uppose germination periods, in days, for grass seed are normally distributed and have a known population standard deviation of 2

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Step-by-step explanation:

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Then,

$EBM =(1.645)\dfrac{2}{\sqrt{22}}\\\\=(1.645)\dfrac{2}{4.690416}\\\\\approx0.701$

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2 years ago

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Arlecino [84]

Answer:

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Step-by-step explanation:

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2 years ago

Which of the following is equal to the expression below?

aliina [53]

(8 x 320)^1/3

(2560)^1/3

(64*40)^1/3

64^1/3 *40^1/3

4 * (8^1/3) * 5^1/3

4 * 2 * 5^1/3

8 *5^1/3

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6 0

3 years ago

Read 2 more answers

3600 dollars is placed in an account with an annual interest rate of 5.5%. To the nearest year, how long will it take for the ac

Lynna [10]

Answer:

14.44

Step-by-step explanation:

The formula says

A=p(1+r)^t

A 7800

P 3600

R 0.055

T ?

7800=3600(1+0.055)^t

7800/3600=(1.055)^t

Log(7800/3600)= t × log(1.055)

T=log(7800/3600)/log(1.055)

T= 14.44 years

7 0

2 years ago