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Katyanochek1 [597]
3 years ago
10

What the answer for number 9 ??

Mathematics
1 answer:
ivolga24 [154]3 years ago
7 0
72 pieces
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Given square NOWR, what is the value of x and y?
Rina8888 [55]

Answer:

x = 4, y = 9

Step-by-step explanation:

The angles in a square are right, that is 90°

The diagonals bisect the angles , then

6x + 21 = 45 ( subtract 21 from both sides )

6x = 24 ( divide both sides by 6 )

x = 4

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

The sides of a square are congruent , then

10y - 29 = 5y + 16 ( subtract 5y from both sides )

5y - 29 = 16 ( add 29 to both sides )

5y = 45 ( divide both sides by 5 )

y = 9

8 0
3 years ago
Determine the value of a + b in the system of equations below. <br><br> 5a + 4b = 22<br> 7a-b= 11
dexar [7]

Answer:

We have a + b as;

2 + 3 = 5

Step-by-step explanation:

Here, we want go get the value of a and b

from the second equation, we can get an expression for b

We have this as;

7a - b = 11

Thus,

b = 7a - 11

Now, from here, we can substitute the value of b into the first equation

We have this as;

5a + 4(7a - 11) = 22

5a + 28a -44 = 22

33a = 22 + 44

33a = 66

a = 66/33

a = 2

Recall;

b = 7a - 11

substituting the value of a from above;

b = 7(2) - 11

b = 14 - 11

b = 3

6 0
3 years ago
What is 8^2 + 15^2= c^2
Tasya [4]

Answer:

8^2\:+\:15^2=\:c^2

c = 17

Step-by-step explanation:

This is the  Pythagorean theorem  

6 0
2 years ago
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What is the solution to the system of equations graphed below y=-2x+4 y=x-5
Tpy6a [65]

Answer:

D. (3, -2)

Step-by-step explanation:

The point where both lines meet is the solution to the system of equations.

3 0
3 years ago
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1 5/6 x 2 1/4 = <br> ANSWER ASAPPP . BE RIGHT AND EXPLAIN PLS
MariettaO [177]

Answer:

25

Step-by-step explanation:

6 0
3 years ago
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