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2 years ago

Find the missing segments in this 30-60-90 right triangle AB=8 BC=4 CD=?

Mathematics

2 answers:

Georgia [21]2 years ago

4 0

CD= 12 I think if its wrong I'm so sorry

Oxana [17]2 years ago

4 0

I'm guessing that CD would be the 'altitude' of the of the right triangle, also considered as a leg, too, with also AB being the hypotenuse. If this is the case, then CD would measure 4√3. Hope this helps.

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casey is six time as old as Ralph, In two years, she will be four time as old as Ralph. How old is each of them now?

Keith_Richards [23]

Casey is 18 years old and Ralph is 3 years old.

Step-by-step explanation:

Let,

Age of Casey = x

Age of Ralph = y

According to given statement;

x = 6y Eqn 1

In two years

x+2=4(y+2)

x+2=4y+8

x = 4y+8-2

x = 4y+6 Eqn 2

Putting value of x from Eqn 1 in Eqn 2

$6y=4y+6 \\6y-4y=6\\2y=6$

Dividing both sides by 2

$\frac{2y}{2}=\frac{6}{2}\\y=3$

Putting y=3 in Eqn 1

$x=6(3)\\x=18$

Casey is 18 years old and Ralph is 3 years old.

Keywords: word problems, substitution method

Learn more about substitution method at:

#LearnwithBrainly

7 0

3 years ago

Assume: Triangle CDE is a right triangle and Angle D is a right angle. What is the length of the missing side? A) 26 . B) 25 . C

kramer

Answer:

Length of base DE = 24 units

Step-by-step explanation:

Given:

In given triangle, right angle at D

SO,

Perpendicular of given triangle = 32 unit

Hypotenuse of given triangle = 40 unit

Find:

Length of base DE

Computation:

Using Pythagoras theorem

Base = √Hypotenuse² - Perpendicular²

Length of base DE = √Hypotenuse of given triangle² - Perpendicular of given triangle²

Length of base DE = √40² - 32²

Length of base DE = √1,600 - 1,024

Length of base DE = √576

Length of base DE = 24 units

6 0

2 years ago

The graph of a system of equations with the same slope and the same y-intercepts will have no solutions.

Liula [17]

I think the correct answer from the choices listed above is option C. <span>The graph of a system of equations with the same slope and the same y-intercepts will never have no solutions. Rather, it has an infinite number of solutions since all points of the lines intersects.</span>

4 0

3 years ago

Event A has a 0.3 probability of occuring and event B has a 0.4 probability of occuring. A and B are independent events. What is

GarryVolchara [31]

When you say either, you add both A and B
0.3+0.4=0.7
Your answer is 0.70 which means 70%

4 0

3 years ago

Read 2 more answers

Which expression is equivalent to -2( x-7 )?

AnnyKZ [126]

Answer: -2x+14

Step-by-step explanation: use the distributive property. -2 times x and -2 times -7. -2x+14