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Schach [20]
3 years ago
11

Please help me! I will give brainly

Mathematics
2 answers:
creativ13 [48]3 years ago
6 0

Answer:

D. 27 degrees

Step-by-step explanation:

We know that one angle is 63. Then there is another angle that is 90 because there is a square. We know that every single triangle has to be equal to 180. Therefore, we have to subtract 63 and 90 from 180 to get what x is. 180-63-90 is equal to 180-153. This is equal to 27. Therefore, x is equal to 27 degrees.

If this has helped please mark as brainliest

vichka [17]3 years ago
3 0

Answer:

27

Step-by-step explanation:

You add 63 and 90 (90 being the right angle) and then subtract that from 180 which is the sum of all three angles and you get 27.

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What property is (a•3)x b = b x(a•3) Using algebraic Expressions
Archy [21]

Answer:  Commutative Property of Multiplication

<u>Step-by-step explanation:</u>

Commutative property is when two terms trade places.

(a · 3) × b = b × (a · 3)

Notice that (a · 3) switched places with b

8 0
3 years ago
What value of x is in the solution set of 9(2x + 1) &lt; 9x – 18
netineya [11]
The answer is:  " x < -3 " .
_____________________
Explanation:
_____________________
Given:
______________________
  " 9(2x + 1) < 9x – 18 " ;

First , factor out a "9" in the expression on the right-hand side of the inequality:

9x – 18 = 9(x – 2) ;

and rewrite the inequality:
_____________________
9(2x + 1) < 9(x – 2) ;

Now, divide EACH SIDE of the inequality by "9" ;

[9(2x + 1)] / 9 < [9(x – 2)] / 9 ;

to get:

2x + 1 < x – 2 ; 

Now, subtract "x" and add "2" to each side of the inequality:

2x + 1 – x + 2  <  x – 2  – x + 2 ;

to get:

x + 3 < 0 ;

Subtract "3" from EACH SIDE ;

x + 3 – 3 < 0 – 3 ;

to get:

      " x < -3 "  .
____________________________________
8 0
3 years ago
What is the number before the decimal point called?.
Bond [772]

Answer:

i believe it would be your whole number

8 0
2 years ago
two trains leave towns 480 km apart at the same time and travel toward each other. one train travels 18 km/h faster than the oth
KonstantinChe [14]
\begin{gathered} \text{Let assume one train spe}ed\text{ is x km/h} \\ \text{Second train spe}ed\text{ is }\Rightarrow(x+18)\text{ km/h} \\ \text{They m}eet\text{ in 2 hour,so} \\ 2=\frac{480}{x+x+18} \\ 2x+18=\frac{480}{2} \\ 2x=240-18 \\ x=\frac{222}{2} \\ x=111\text{ km/h (1st train spe}ed) \\ x+18=111+18=129\text{ km/hr (2nd rain sp}eed)\text{ } \end{gathered}

3 0
1 year ago
Ther are 6 girls and 7 boys in a class. A team of 10 players is to be selected from the class. How many different combinations o
omeli [17]

Answer:

There are 286 possible combinations

Step-by-step explanation:

To solve this problem we must use the formula of combinations.

nCr =\frac{n!}{r!(n-r)!}

Where n is the number of players that there are and elect r of them

In this case there are 7 + 6 = 13 players and you choose 10 of them

Then we look for  13C10

13C10 =\frac{13!}{10!(13-10)!}

13C10 =\frac{13!}{10!*3!}

13C10 =286

There are 286 possible combinations

8 0
3 years ago
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