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Aliun [14]
3 years ago
12

Simplify 4+ (-3) - 2 * (-6) A.-11 m 3 g

Mathematics
1 answer:
mr Goodwill [35]3 years ago
5 0

Answer:

13

Step-by-step explanation:

4+(-3)-2*(-6)

Let us start from the left

2*(-6)= 2 times 6 , where we will have a negative sign on the result as + when multiplied by - gives - (negative)

2*(-6)=-12

4+(-3)-2*(-6) = 4+(-3)-(-12)

Now we open the bracket from the left. It the sign outside the bracket is negative the sign in the bracket will be changed

Hence

4+(-3)-(-12)= 4-3+12

Now -3 +12 we find the difference as the signs are opposite and then place the sign with the larger number

Hence -3+12=9

4-3+12=4+9 = 13

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Can someone help me with this question? <br> (2,5) and (10,3) What is the slope and the y-intercept
Paha777 [63]

Answer:

slope is -1/4

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Step-by-step explanation:

the slope is (3-5)/(10-2) = -2/8 = -1/4 (using the slope formula)

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3 years ago
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3 years ago
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Step-by-step explanation:

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3 years ago
The curves r1(t) = 4t, t2, t3 and r2(t) = sin(t), sin(5t), 2t intersect at the origin. find their angle of intersection, θ, corr
san4es73 [151]
First get the tangent vectors by differentiating r1 and r2 
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Evaluate at t=0
r_1' = (4,0,0) \\  \\ r_2' = (1,5,2)

Use identity for angle between 2 vectors:
u*v = |u| |v| cos \theta

Evaluate dot product and unit vectors:
u*v = (4,0,0)*(1,5,2) = 4 \\  \\ |u| = \sqrt{4^2 +0^2+0^2} = 4 \\  \\ |v| = \sqrt{1^2 + 5^2+2^2} = \sqrt{30}

Sub into identity and solve for theta:
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Answer:
Angle of intersection is about 79 degrees.




5 0
4 years ago
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