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Bess [88]
3 years ago
9

In the figure above, AB = AD, BC = CD, BE = 2, BC = 4, and AC = 10. What is the area of triangle ABD?

Mathematics
1 answer:
yuradex [85]3 years ago
4 0

Answer:

how i actually see this is : the scale factor is 3 and we know that when length are multiplied by k the area is multiplied by k^2.

there fore 3*3*42 = 378

Step-by-step explanation:

And Now, consider the area of the entire triangle(ADG) = 1/2(AG x ... The prompt tells us that AB=BC=CD, so AD is 3*CD, so we have ... Apr 10, 2018 • Reply ... 4. Suzanne ashcraft.

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Help asap pleasee help please please
marta [7]

-4=3 (x/2 -7) multiply everything by 2 to get the fraction out

-8=9 (x-7) then subtract 9 from -8 to get 1

1= x-7 add 7 to each side

8=x


4 0
3 years ago
Which of the following sequences of numbers are arithmetic sequences?
valkas [14]
An arithmetic sequence is a sequence of numbers with a common difference. 

In the choices above, only A and D are arithmetic sequences. 

<em>In A, the common difference is 2 while in D, it's 0 .1. 
</em>

B can't be an arithmetic sequence since the number 1 is just being repeated many times, there's no progression.

C as well. Be observant of the pattern, it can be an arithmetic sequence only if it has 4 before 5. 

E obviously is not an arithmetic sequence. If you try to find the difference between the consecutive terms, it's not common. 
7 0
3 years ago
Write the equation of a vertical line that passes through the point (–4, 4).
FinnZ [79.3K]
The question asks for a vertical line, and if it is vertical, it cannot be y = ... because that is horizontal. We also know it passes through the x-coordinate of -4, so the answer is x = -4. 
4 0
3 years ago
Which relationship is always true for the angles x, y, and z of triangle ABC? A triangle is shown with a leg extending past the
nlexa [21]

Answer:

y+z=x

Step-by-step explanation:

we know that

The <u>Exterior Angle Property of a Triangle</u> states that the measure of exterior angle of a triangle is equals to the sum of measures of its interior opposite angles

In this problem

Angle y and angle z are interior angles of triangle ABC and angle x is a exterior angle of triangle ABC

therefore

Applying the Exterior Angle Property of a Triangle

y+z=x

4 0
3 years ago
7. During a sale, the price of a pair of running shoes was marked down from $89.95 to $75.00. What was the
shutvik [7]

Answer:

16.6%

Step-by-step explanation:

(75/89.95)*100=83.37....

100-83.37...=16.62...

=16.6%

7 0
2 years ago
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