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Andreas93 [3]
3 years ago
5

The image shows a portion of a bridge supported by two vertical pillars built from the points B and C on the slope below. The le

ngth of the bridge between pillar B and pillar C is BLANK feet.

Mathematics
2 answers:
Anna11 [10]3 years ago
8 0

Answer:

The length of the bridge between pillar B and pillar C is 56 feet.

Here's the answer from the plato.

dalvyx [7]3 years ago
4 0
In order to find the length of ?? (let's call this distance x), let's first find the value of Angle A. 

The cosin of Angle A is Adjacent / Hypotenuse, or 40 / 50. Using this Info:
cos (A) = 40/50
cos (A) = .8

With this crucial piece of info, we can find the Total length of A-D (Point D being the point above C), by finding its relation to side AC (length of 50 + 70 =120 ft)
Cos (A) = adjacent / hypotenuse
Cos (A) = AD / (120)                                 We know that cos (A) = .8
.8 = AD / (120)                                          Multiply both sides by 120
96 = AD

We're almost there! Remember that we're trying the find x (?? in the diagram).

x + 40 = 96 
x = 56 ft 
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Sloan [31]
48 = 1\frac{1}{2}y \\48(\frac{2}{3}) = 1\frac{1}{2}y(\frac{2}{3}) \\32 = y
4 0
3 years ago
A deadly bacteria doubles in size every 3 hour. If there were initially 14 spores present, how long will it take for the number
Len [333]
1792=3x+14
I’m not sure that’s all the way correct
7 0
2 years ago
An object at the top of a building with height 110 feet is thrown upward with an initial speed of 23 ft/s. Find its position z(t
alina1380 [7]

Answer:

Step-by-step explanation:

Given

Height of building is h=110\ ft

Initial upward velocity u=23\ ft/s

height of object is given by

z(t)=ut+\frac{1}{2}gt^2

but building is already at a height of 110 ft so z(t) must be given by

Z(t)=ut+\frac{1}{2}(-g)t^2+110

Z(t)=23\times t-\frac{1}{2}\times 9.8\times t^2

Z(t)=-16t^2+23t+110

Time when it hits is given by when Z(t)=0[/tex]

-16t^2+23t+110=0

t=\frac{-23\pm \sqrt{(23)^2-4\times (-16)\times 110}}{2\times (-16)}

t=\frac{-23\pm 87}{-32}

t=3.43\ s

6 0
3 years ago
What is 0.6767 as a simplified fraction
vodka [1.7K]

Answer: 6767/10000

Step-by-step explanation:

Just simplify it by its nearest tenth

6 0
2 years ago
Can someone help me here pls thanks!​
vesna_86 [32]

Using proportions, it is found that the measure of the inscribed angle B is of 30º.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In a circle, the inscribed angle is half the measure of the outside angle. Hence, in this problem, the measure of angle B is of 50% of 60º, hence:

m<B = 0.5 x 60º = 30º.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

4 0
2 years ago
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