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jenyasd209 [6]
3 years ago
6

Factor k 2 + 8k + 15. answers. (k + 1)(k + 15) (k + 8)(k + 7) (k + 3)(k + 5)

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
4 0
K^2 +3k +5k + 15
k (k+3) +5 (k+3)
(k+5)(k+3)


So, the correct option is the last one.
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Find an equation for the line tangent to the curve y=x^3-4x+8 at the point (4,56)
Alexxandr [17]
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Thats what my Aunt said... Idk</span>
4 0
3 years ago
Teh slope between two points is calculated by finding the change in y-values and dividing by the change in x-values. for example
Nimfa-mama [501]
Hi there!

The change of y-values is
- 15 - 22 = - 37
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Therefore, the slope of this line is
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4 0
3 years ago
The hypotenuse AB of a right triangle ABC is 5 ft, and one leg, AC, is decreasing at the rate of 2 ft/sec. The rate, in square f
mojhsa [17]
Okay 
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the rate of change od BC = d(BC)/dt 
area = (1/2) *AC) (BC) 
taking differential on both sides we ge 
d(A)/dt = 1/2){ (BC) d(AC)/dt + (AC) d(BC)/dt)}....(1) 
again 
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applying pythagorous thm 
we get 
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now we need to find d(BC)/dt 
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(5)^2 = (AC)^2 +(BC)^2 
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that is 
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hence 
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substituting these values in equation (1) 
d(A)/dt = (1/2) {4 * -2 + 3 *3/2} 

which gives 
<span>d(A)/dt = -7/4 

</span>The rate, in square feet per second, at which <span>the area is changing when AC = 3 is -7/4 ft/sec.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

</span>
4 0
3 years ago
Read 2 more answers
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