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zhuklara [117]
3 years ago
9

Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two

Mathematics
1 answer:
telo118 [61]3 years ago
8 0

Answer:

8 cm , 9cm

Step-by-step explanation:

sum of any two sides >third side

difference of any two sides<third side

only 8 cm and 9 cm satisfies it

8+9=17>13

9-8=1<13

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Solve each system of equation using any method.<br> 7 x + y = 5 2x - y = 4
nexus9112 [7]

Answer:

x = 1

y= -2

Step-by-step explanation:

to solve this system of equation , simultaneously using the substitution method

we say let

7 x + y = 5 ............................................. equation 1

2x - y = 4 ................................................... equation 2

from equation 2

2x - y = 4 ................................................... equation 2

2x - 4 = y

y = 2x -4.......................................................... equation 3

put the value of the y = 2x -4 into equation 1

7 x + y = 5 ............................................. equation 1

7x + 2x - 4 = 5

9x-4 = 5

9x = 5 + 4

9x = 9

divide both sides by the coefficient of x which is 9

9x/9 = 9/9

x = 1

substitute the value of x = 1 into equation 3

y = 2x -4.......................................................... equation 3

y = 2(1) -4

y = 2 - 4

y = -2

to check if you are correct put the value of x and y into any of the equations and you will see that the left hand side will be equal to the right hand side.

2x - y = 4 ................................................... equation 2

2(1) -(-2) = 4

2 + 2 = 4

4=4................................... proved

7 0
3 years ago
If 16 = x, then x2=<br> 8<br> 16<br> 4
4vir4ik [10]

Answer:

32?

Step-by-step explanation:

16×2=32

not sure what the numbers after that means but

x8=128

x16=256

x4=64

8 0
3 years ago
Mrs. Goldstein is building a new house. She creates a scale drawing of the house on a piece of paper. The scale is 1cm = 5.5ft.
enyata [817]

Answer:11343.75 feet

Step-by-step explanation:

so you do 15 x 5.5 and then 25 x 5.5 then you times the answers of the two and you get your answer

this should be right.

Hoped this helped

4 0
3 years ago
write the equation in slope-intercept form of the line passing through the points (-3, -2) and (-5, 2) hint: y = mx + b, all wor
Mama L [17]

Answer:

y(x) = -2x -8

Step-by-step explanation:

using the hint, insert the points (x,y) in the equation:

-2 = -3m + b       eq1

2 = -5m + b        eq2

eq2 - eq1 :  

4 = -2m  ==> m = -2

insert m in eq1:    

-2 = -3*(-2) +b   ==> b = -8

4 0
3 years ago
What is the range of the function g(x)= x-12 -2
FinnZ [79.3K]

Answer:

all real numbers

Step-by-step explanation:

8 0
3 years ago
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