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3 years ago

15

A rectangular box with a volume of 784 ft3 is to be constructed with a square base and top. the cost per square foot for the bot

tom is 15¢, for the top is 10¢, and for the sides is 1.5¢. what dimensions will minimize the cost

1 answer:

iVinArrow [24]3 years ago

8 0

I think it is 15 so I don’t know that if it right

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NEVERMIND I GOT THE ANSWERquestion in photo, i cant do math help :(

Morgarella [4.7K]

|EG| / |FH| = |GD| /|HD|

6/8 = |GD|/14

|GD| =6*14/8 = 10.5

5 0

3 years ago

16. Solve for the angle x.<br> cos(¹/2x) = ¹/2

Basile [38]

Answer:

We know that ,

$\rightarrow \tt \cos( \frac{\pi}{3} ) = \frac{1}{2}$

So ,

$\: \rightarrow \tt \cos( \frac{1}{2}x ) = \cos( \frac{\pi}{3} ) \\ \\ \rightarrow \tt \frac{1}{2}.x = \frac{\pi}{3} \\ \\ \rightarrow \tt x = \frac{2\pi}{3}$

we can add 2 pi to it since there will be no change in the value

Also,

$\: \rightarrow \tt \cos( \frac{14\pi}{6} ) = \frac{1}{2} \\ \\ \\ \rightarrow \tt \frac{1}{2} x = \frac{14\pi}{6} \\ \\ \rightarrow \tt x = \frac{7\pi}{3}$

Answer : Option B

6 0

2 years ago

stellarik [79]

Answer:

c.

Step-by-step explanation:

Move the constant to the right side and the sign

0.5x=26-6

Calculate

0.5x=26-6=20 >>> 0.5x=20

divide both sides of by the equation 0.5

0.5x=20 >>> x=40

4 0

3 years ago

X - 4y = 28<br> 2x + y =2

Tresset [83]

X - 4y = 28
2x + y = 2

solve for x
y= -2x + 2
y= x/4 - 7

solve for system of equations
(4,-6)
x= 4, y= -6

7 0

2 years ago

Mrs.bain earns 30,483 per year how money does she earn in one month my entire math grade depends on this one answer please help

mixer [17]

30483/12
=$2540.25
Hope this helps

8 0

2 years ago