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3 years ago

Two congruent triangles are given.

Mathematics

1 answer:

bezimeni [28]3 years ago

4 0

I think the correct answer would be the 3rd one

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Which equation is equivalent to 1/4x + 1/5 =5

Veseljchak [2.6K]

Answer:

i think it woukd be 45

Step-by-step explanation:

8 0

3 years ago

Catalina spent &17.50 on 10 scrunchies. what is the unit cost?

Step2247 [10]

Answer:

Step-by-step explanation:

20 scrunchies=3 dollars

7.25 dollars = ?

1 dollar=6.66666666

0.25 dollar=1.666666666666

7*6.66666666=46.666666

8 0

2 years ago

Find the area of the shaded region.

finlep [7]

Answer

252

Step-by-step explanation:

12*12=144

18*6= 108

108+144=252

8 0

3 years ago

Read 2 more answers

A lighthouse is located on a small island 2 km away from the nearest point P on a straight shoreline and its light makes four re

ddd [48]

Answer:

62.8 km per min

Step-by-step explanation:

Let the diagram of this situation is shown below,

In which $\theta$ is the angle made by light to the straight line joining the lighthouse and P,

∵ Light makes 4 revolutions per minute.

Also, 1 revolution = $2\pi$ radians

So, the change in angle with respect to t ( time ),

$\frac{d\theta}{dt}=8\pi\text{ radians per min}$

Let x be the distance of beam from P,

$\implies \tan \theta = \frac{x}{2}$

Differentiating with respect to x,

$\sec^2 \theta \frac{d\theta}{dt}=\frac{1}{2}\frac{dx}{dt}$

$(1+\tan^2 \theta) (8\pi) = \frac{1}{2}\frac{dx}{dt}$

$(1+\frac{x^2}{2^2})(8\pi) = \frac{1}{2}\frac{dx}{dt}$

If x = 1 km,

$(1+\frac{1}{4})8\pi =\frac{1}{2}\frac{dx}{dt}$

$\frac{5}{4}8\pi = \frac{1}{2}\frac{dx}{dt}$

$\implies \frac{dx}{dt}=\frac{80\pi}{4}= 20\pi\approx 62.8\text{ km per min}$

Hence, the beam of light moving along the shoreline with the speed of 62.8 km per min

7 0

4 years ago

Alex has $25 in his savings account. He needs $150 to buy a new bicycle. He plans to deposit $12.50 per week into the account un

Mice21 [21]

Answer:

150-25=125 (what he needs left)

125/12.50= 10

So it'll take him 10 weeks to finally reach that amount.

Step-by-step explanation:

4 0

3 years ago