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Delvig [45]
2 years ago
5

I need help on number two

Mathematics
1 answer:
soldi70 [24.7K]2 years ago
8 0
I believe a would be on the first line.
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Find the value of x.
konstantin123 [22]

Answer:

x= 37.5°

Step-by-step explanation:

∠CBD

= 180° -75° (adj. ∠s on a str. line)

= 105°

∠BCD= ∠BDC (base ∠s of isos. △BCD)

∠BCD= x

∠BCD +∠BDC +∠CBD= 180° (∠ sum of △BCD)

x +x +105°= 180°

2x= 180° -105°

2x= 75°

x= 37.5°

<u>Alternative</u><u> </u><u>working</u><u>:</u>

∠BDA= (180° -75°) ÷2 (base ∠s of isos. △ABD)

∠BDA= 52.5°

∠BDA +∠BDC= 90°

52.5° +x= 90°

x= 90° -52.5°

x= 37.5°

6 0
3 years ago
Can someone help me, please!!!
kolezko [41]

Answer:

D

The line shows an intercept of -3 and a slope of 5/7. Equation D displays this

Step-by-step explanation:

7 0
2 years ago
How many terms are in the following expression: 7x + 3y – 5 + 2x + 11
zepelin [54]
There are 3 terms. Because if you simplify it, 7x and 2x would be 9x.. and -5+11 would be 6 so there would be (9x+3y+6) left. so 3 terms
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3 years ago
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What is 120 over 540
Zielflug [23.3K]

Answer:

0.2

Step-by-step explanation:

Basically, all you would do is 120/540. Which is the same thing as division. So: 120 / 540 = 0.2

3 0
2 years ago
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Instructions: Determine if the two triangles in the image are congruent. If they are, state how you know by identifying the post
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3 0
3 years ago
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