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Gennadij [26K]
3 years ago
10

What is the value of x?

Mathematics
2 answers:
ziro4ka [17]3 years ago
6 0
The answer to this question is 71
Stels [109]3 years ago
6 0

Answer:

Answer is 71 degree

Step-by-step explanation:

AS we can see it is an isosceles triangle so base angles are equal

x + x + 38 = 180 ( sum of angles of triangle )

2x = 180 - 38

2x = 142

x = 142 / 2

Therefore x = 71 degree

Hope it helps :)

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Subtract: 3.8 - 2.923. Explain in your own words how you would solve this, in detail, from start to finish.
Cerrena [4.2K]

Given:

The expression is 3.8 - 2.923.

To find:

The subtraction.

Solution:

We have,

3.8-2.923

It can be written as

3.800-2.923

Now,

3 . 8 0 0

-2 . 9 2 3

-----------------

0 . 8 8 7

-----------------

So, 3.800-2.923=0.887

Therefore, the value of 3.800-2.923 is 0.887.

4 0
2 years ago
What type of relationship does a correlation coefficient of r = 0.45 indicate? A. Weak negative correlation B. Weak positive cor
Dmitry_Shevchenko [17]

Answer:

B

Step-by-step explanation:

Here, we want to know the kind of relationship a correlation value of 0.45 represents

Generally the perfect correlation value is 1, while a correlation score of zero shows no relationship between the two quantities.

Firstly, the value we have is positive, so we have a positive correlation, since it is closer to zero than 1, we can interpret the value as being a weak positive correlation

8 0
3 years ago
HELPPPP......ASAP Will give 10 points
Leni [432]

Answer:

120 degrees, I think

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
I need help please help
almond37 [142]

Answer:

first one

28.26 im not 100% correct i dont think

7 0
2 years ago
Read 2 more answers
a metal worker has a metal alloy that is 20% copper, and another metal alloy that is 60% copper. How many kilograms (kg) of each
emmainna [20.7K]

Let X = the 29% alloy and Y = the 60% alloy.

They want a total of 80kg, so you have X +Y = 80

Rewrite that to get X = 80-Y


You also want 0.20X + 0.60Y = 0.52(80)

Replace X with 80-y:

0.20(80-y) + 0.60y = 0.52(80)

Simplify:

16 - 0.20y + 0.60y = 41.6

Combine like terms:

16 +0.40y = 41.6

Subtract 16 from each side:

0.40y = 25.6

Divide both sides by 0.40

y = 25.6 / 0.40

y = 64


Now you have Y replace y with 80 in X = 80-Y

X = 80 - 64

X = 16

They need 64 Kg of the 60% alloy and 16 Kg of the 20% alloy.


5 0
2 years ago
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