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borishaifa [10]

2 years ago

7

please help im trying to get answers but people just putting silly comments on my questions please please give me a hand all in

attachment photo

1 answer:

ankoles [38]2 years ago

3 0

Answer:

8 ================================================================ D

i might be incompetent but at least I'm not impotent

Step-by-step explanation:

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For which value of c is the line y=3x+c a tangent to the parabola with equation y=x2-5x+7

Mrac [35]

Hello :
the slope of tangent in A(x':y') is : f'(x') =3
f'(x) = 2x-5
2x'-3 =3
2x' = 6
x' = 3
f(3)= 3²-5(3)+7=1
1 =3(3)+c
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3 years ago

Maggie took one of her friends out to lunch. The lunches cost $20 and she paid 5% sales tax. If Maggie left a 10% tip on the $20

RUDIKE [14]

Answer:

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Step-by-step explanation:

20+20=40, 5% of 40=2, 42, +4, 46. (the 4 comes from the 10%)

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2 years ago

tiana's car travel 111 miles on 3/8 of a tank of gas. how far will she be able to go on a full tank of gas?

kari74 [83]

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3 0

3 years ago

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What is the volume of a right circular cone if the circumference of the base is 125.6 ft and the height is 75 ft.? Use π=3.14 an

Alex_Xolod [135]

Answer:

The volume of a right circular cone is $31400\ \text{feet}^3$ .

Step-by-step explanation:

The circumference of the base of a right circular cone is 125.6 ft.

Height of cone is 75 ft.

Circumference of base is :

$C=2\pi r$ , r is radius

$r=\dfrac{C}{2\pi}\\\\r=\dfrac{125.6}{2\times 3.14}\\\\r=20\ ft$

The volume of a cone is given by :

$V=\dfrac{1}{3}\pi r^2 h\\\\V=\dfrac{1}{3}\times 3.14\times (20)^2\times 75\\\\V=31400\ \text{feet}^3$

So, the volume of a right circular cone is $31400\ \text{feet}^3$ .

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3 years ago

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SIZIF [17.4K]

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3 years ago

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