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3 years ago

How many different triangles can be constructed with three angles, each measuring 60°

Mathematics

1 answer:

Sav [38]3 years ago

5 0

I think your answer would be A

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Solve the equation.<br> 19 = 14 + k<br> k=

Iteru [2.4K]

Solve for k by simplifying both sides of the equation, then isolating the variable .

Answer - K=5

Hope this helps!
Have a great day! :)

4 0

3 years ago

Read 2 more answers

The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm^2/

VARVARA [1.3K]

Answer:

The base is decreasing at 2 cm/min.

Step-by-step explanation:

The area (A) of a triangle is given by:

$A = \frac{1}{2}bh$ (1)

Where:

b: is the base

h: is the altitude = 10 cm

If we take the derivative of equation (1) as a function of time we have:

$\frac{dA}{dt} = \frac{1}{2}(\frac{db}{dt}h + \frac{dh}{dt}b)$

We can find the base by solving equation (1) for b:

$b = \frac{2A}{h} = \frac{2*120 cm^{2}}{10 cm} = 24 cm$

Now, having that dh/dt = 1 cm/min, dA/dt = 2 cm²/min we can find db/dt:

$2 cm^{2}/min = \frac{1}{2}(\frac{db}{dt}*10 cm + 1 cm/min*24 cm)$

$\frac{db}{dt} = \frac{2*2 cm^{2}/min - 1 cm/min*24 cm}{10 cm} = -2 cm/min$

Therefore, the base is decreasing at 2 cm/min.

I hope it helps you!

7 0

2 years ago

Solve X/3+5=9 pls give me answer

dalvyx [7]

The answer is x= 12.

5 0

2 years ago

At Mr. Clark's shop, his employees work 20 hours each week and

finlep [7]

Answer:

B if there is an N at the end or beginning of it, Not sure if it cut off or not.

Step-by-step explanation:

Well you would need to do 20(7) to get 140, then multiply that to N. I would say B because I'm assuming you're missing out on some part of it, if it is N at the beginning or end then it is B.

5 0

3 years ago

Simplify: -3(y+2)^2-5+6y<br>

krek1111 [17]

Answer:3y^2+18y+7

:) happy to help

4 0

3 years ago