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3 years ago

SEPULUH RIBU RUPIAH

Mathematics

1 answer:

Oxana [17]3 years ago

7 0

Answer:

RP 10.000

Step-by-step explanation:

What it true?

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<img src="https://tex.z-dn.net/?f=10%20%7Bx%7D%5E%7B2%7D%20-%206%20%3D%20144%20" id="TexFormula1" title="10 {x}^{2} - 6 = 144 "

Juli2301 [7.4K]

Answer:

$\large\boxed{x=\pm\sqrt{13}}$

Step-by-step explanation:

$10x^2-6=144\qquad\text{add 6 to both sides}\\\\10x^2=130\qquad\text{divide both sides by 10}\\\\x^2=13\to x=\pm\sqrt{13}$

5 0

4 years ago

Answer fast please .

MArishka [77]

I think it's D. The area of A is k2 times the area of rectangle B

8 0

3 years ago

10 POINTS!!!

seraphim [82]

i would say its independent

3 0

4 years ago

Trigonometry is the study of tree-dimensional objects true or false

Fofino [41]

False, trigonometry is not the study of three dimensional shapes.

6 0

3 years ago

The city council plans to build a new water storage tank for the community. The tank is cylindrical with a base diameter of 25 f

Stella [2.4K]

Answer:

a. $14726.216ft^{3}$

b. $110446.62gal$

Step-by-step explanation:

I attach the diagram of the new water tank.

a. In order to find the volume of the tank in cubic feet, we will need to calculate the volume of a cylinder. We know that its base measures $25ft$ and its height is $30ft$ .

The volume ''V'' of a cylinder is :

$V=(\frac{\pi D^{2}}{4}).(H)$

Where '' $D$ '' is the diameter of the base and '' $H$ '' is the height of the cylinder.

If we replace all the data in the equation :

$V=\frac{\pi .(25ft)^{2}}{4}.(30ft)=14726.216ft^{3}$

We found out that the volume of the tank in cubic feet is $14726.216ft^{3}$

b. We know that 1 cubic foot of water is equal to 7.5 gallons. To find the amount of gallons that the new tank can hold, we need to do an unit conversion.

This equivalence is given to us :

$1ft^{3}=7.5gal$ ⇒ Using the equivalence ⇒

$(14726.216ft^{3}).(\frac{7.5gal}{1ft^{3}})=110446.62gal$

Finally, the new tank will hold $110446.62gal$ of water.

7 0

4 years ago

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