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olchik [2.2K]
3 years ago
6

Is 19cm, 12cm, and 9cm a obtuse?​

Mathematics
1 answer:
UNO [17]3 years ago
5 0
I believe not, has to be more than 90° and less than 180°.
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Please help! Worth 25 points :)
Daniel [21]

Answer:

b

Step-by-step explanation:

5(0)-3(-4)=12 that simply's to 0+12=12

its no subtraction sign cause cant have a double negative

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What is X?  X + 2X = 1200
marusya05 [52]
X + 2x = 1200
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Multiply (6 – 7i)(3 – 6i). <br> a. 18 – 57i 42i2 <br> b. 18 42i2 <br> c. 60 – 57i <br> d. –24 – 57i
Svetlanka [38]
Hi there!
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Solve for all values of x using the quadratic formula when the equation is x2 + 3x +2. use variables with proper assignments for
Anna007 [38]

x =  [-3 +/- √(3^2 - 4*1*2) ]  /  2

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(1) 39 = 2x - 5(-3x + 16)
ella [17]

Answer:

The solution is x=7

Step-by-step explanation:

we have

39= 2x- 5(-3x+16)

Solve for x

Distribute right side

Remember that

(-1)(-1)=+1\\(-1)(+1)=-1

39=2x+5(3x)-5(16)

39=2x+15x-80

Combine like terms right side

39=17x-80

Adds 80 both sides

39+80=17x

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Divide by 17 both sides

7=x

Rewrite

x=7

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