The steps below show the incomplete solution to find the value of x for the equation 6x + 10 − 4x = −4 − 11:

Mathematics

2 answers:

aleksley [76]3 years ago

6 0

Step 3: 2x = -25
there is your answer

irga5000 [103]3 years ago

3 0

2x=-25 is most likely the next step

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Find the value of x for the following situation: the line containing (8,7) and (7,-6) is perpendicular to the line containing (2

drek231 [11]

Answer:

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Step-by-step explanation:

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3 years ago

Lisa arranges six square paintings as shown in the area of the arrangement is 225 cm² what would it cost Lisa to frame her arran

vekshin1

Total cost of painting 225 cm² will be:
Cost=(total area)×(cost per cm²)
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One gallon of paint covers 400 square feet of surface area. A typical spherical water tower holds 66,840.28 cubic feet of water.

enot [183]

Answer: There will enough to paint the outside of a typical spherical water tower.

Step-by-step explanation:

1. Solve for the radius r from the formula for calculate the volume of a sphere. as following:

$V=\frac{4}{3}r^{3}\pi\\\frac{3V}{4\pi}=r^{3}\\r=\sqrt[3]{\frac{3V}{4\pi}}$

2. Substitute values:

$r=\sqrt[3]{\frac{3(66,840.28ft^{3})}{4\pi}}=25.17ft$

3. Substitute the value of the radius into the equation fo calculate the surface area of a sphere, then you obtain that the surface area of a typical spherical water tower is:

$SA=4r^{2}\pi\\SA=4(25.17ft)^{2} \pi\\SA=7,964.95ft^{2}$

3. If a city has 25 gallons of paint available and one gallon of paint covers 400 square feet of surface area, you must multiply 25 by 400 square feet to know if there will be enough to paint the outside of a typical spherical water tower.

$25*400ft^{2}=10,000ft^{2}$