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Varvara68 [4.7K]
3 years ago
12

If C is 40°, find the angle of BDA and BAC!​

Mathematics
1 answer:
Tems11 [23]3 years ago
8 0

Answer:

BDA IS 59 degree and BAC is 35 degrees

Step-by-step explanation:

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Geometry :))), please help me
amm1812

Answer:

x = -5

Step-by-step explanation:

Since these two triangles are similar, the ratio between the corresponding lengths of each triangle will be the same.

This means the ratio between one side of each triangle (e.g. AD and DC) will be the same as the ratio between a different side of each triangle (e.g. BE and BC).

So, to create an equation for the sides which contain the unknown 'x', we must first find the ratio between the two sides by using a different set of sides.

On the right side we are given 9 for AD, and 18 for DC.

9/18 = 0.5

This means that the extra length of the larger triangle from the smaller one (AD) is half the length of the smaller triangle (DC). We can use this to make an equation for x:

If AD/DC = 0.5, then BE/EC will also = 0.5

BE = x+23

EC = x+41

Therefore:

\frac{x+23}{x+41} = 0.5

Now we can solve by multiplying both sides by x+41 to eliminate the fraction:

x+23=0.5(x+41)

Now we multiply out the brackets and move the terms to different sides:

x+23=0.5x+20.5

0.5x = -2.5

x = -5

And if we substitute the -5 into the equations:

-5+23 = 18

-5 + 41 = 36

We will see that -5 does indeed give us the same ratio between the lengths:

18/36 = 0.5

Hope this helped!

4 0
3 years ago
A family reunion will include a picnic. Hamburger buns come in packages of 8 and the hamburger patties come in packages of 20. H
IrinaVladis [17]

Answer:

28

Step-by-step explanation:

20+8= 28

5 0
3 years ago
Standard form of two hundred ten million, sixty four thousand,fifty
neonofarm [45]
We have to write the standard form of : two hundred ten million, sixty four thousand , fifty.
210 * 10,000,000 + 64 * 10,000 + 50
Answer:
The standard form is  210,064,050.
7 0
3 years ago
3x - 2y = -18 use the table of vaules to graph the line
docker41 [41]

Answer:

Given the equation of line :  3x -2y = -18

Table values:

x                  y

0                  9

2                  12

4                   15

6                   18

-6                  0

Now, plot these points (0,9), (2, 12), (4, 15) , (6, 18) and (-6, 0) on the co-ordinate planer, to graph the the line.

You can see the graph of the given equation as shown below.                  

3 0
3 years ago
Milton needs to find the product of two numbers. one of the numbers is 9. The answer also needs to be 9. how will he solve this
galben [10]
The answer to this problem is one because nine times one equals nine which the answer is still nine
6 0
3 years ago
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