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likoan [24]
3 years ago
6

I WILL AWARD BRAINLIEST!! PLEASE HELP,!!

Mathematics
1 answer:
katen-ka-za [31]3 years ago
5 0

Answer:

B. 70°

Step-by-step explanation:

If this is an equilateral triangle, then each angle is   180/3 = 60

<A = 60 = x+3x+2x

      60 = 6x

     60/6 = 6x/6

  10 =x

Angle B will also equal 60 degrees

BDA  + x + B = 180

BDA + 10 + 60 = 180

BDA + 70 = 180

BDA = 180-70

BDA = 110

BDA  and y are complementary angles since they form a straight line

BDA + y = 180

110 +y =1 80

y = 180-110

y = 70

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vagabundo [1.1K]
If two shapes are 'similar', it means that the dimensions of the shapes have the same ratio towards each other. In this example, we can see that the side with a length of 2 correlates to the side with a length of 4. That means, the scaling ratio is 4:2, which can be reduced to 2:1.

The next step is to look at the other side. We know that the width of the smaller shape is 1, and that the second shape is twice the size of the smaller shape (which is what a scale of 2:1 means). Therefore, you just need to multiply the known width by two to get the unknown.

1 * 2 = 2

The missing side _d_ has a length of 2.
Hope that helped =)
8 0
3 years ago
How many units away is 1 from -6 on a number line?
kow [346]

Answer:

The units are 7 away from each other.

Step-by-step explanation:

To find the amount, simply subtract the smaller number from the higher number.

1 - -6 = 7

8 0
3 years ago
What is the correctly result for 2+(3-4)*9
Greeley [361]
-7 is the correct result of that equation

6 0
3 years ago
How can you use a number line to compare and order numbers?
miskamm [114]
The numbers going to the left on a number line means the values are smaller and the numbers going to the right means the values are bigger. 

Take the value '0' for example, the value on the right of zero is '1', which is a value bigger than zero, and the value to the left of '0' is '-1', which is a value smaller than zero.

8 0
4 years ago
Is 225/15/3 equal to 225/(15/3)?
Andrej [43]
No, because if they were equal the second equation should be 225/(15x3), not (15/3). 
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3 years ago
Read 2 more answers
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