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3 years ago

If 12 is 10% of the value what is that value

2 answers:

7 0

Any number that is 10% of another number is just saying it's been divided by 10. That means to work out the original number, you do the opposite. (multiply).

Therefore:
12 × 10 = 120.

The value is 120.

Masteriza [31]3 years ago

4 0

For this question you can say:
10/100 = 12/?
so ? is your value:
12*100/10 = 120 :)))
i hope this is helpful
have a nice day

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Find the volume of the wedge-shaped region (Figure 1) contained in the cylinder x2+y2=81 and bounded above by the plane z=x and

Natali5045456 [20]

In cylindrical coordinates, the volume is given with

$\displaystyle\int_{\theta=-\pi/2}^{\theta=\pi/2}\int_{r=0}^{r=9}\int_{z=0}^{z=r\cos\theta}r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\int_{\theta=-\pi/2}^{\theta=\pi/2}\int_{r=0}^{r=9}r^2\cos\theta\,\mathrm dr\,\mathrm d\theta$
$=\displaystyle\left(\int_{\theta=-\pi/2}^{\theta=\pi/2}\cos\theta\,\mathrm d\theta\right)\left(\int_{r=0}^{r=9}r^2\,\mathrm dr\right)$
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3 years ago

Read 2 more answers

Im almost done with this and i need help

jarptica [38.1K]

You need help with the whole thing?

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3 years ago

Find the sine ratio for ∠D.<br> a. 7/25<br> b. 24/7<br> c. 25/24<br> d. 24/25

Shalnov [3]

Answer:

sin ∠D = 24/25

Step-by-step explanation:

sin = opposite / hypotenuse

Looking at ∠D, the opposite side is 24, hypotenuse is 25

Therefore sin = 24/25

8 0

1 year ago

My brain stopped. Please help

Over [174]

Answer:

∠1 = 90°

∠2 = 66°

∠3 = 24°

∠4 = 24°

Step-by-step explanation:

Usually the diagonals of a rhombus bisect each other at right angles.

Thus; ∠1 = 90°

Since they bisect at right angles, then;

∠R1S = 90°

Now, sum of angles in a triangle is 180°

Thus;

66° + 90° + ∠4 = 180°

156 + ∠4 = 180

∠4 = 180 - 156

∠4 = 24°

Now, also in rhombus, diagonals bisect opposite angles.

Thus; ∠4 = ∠3

Thus, ∠3 = 24°

Similarly, the diagonal from R to T bisects both angles into 2 equal parts.

Thus; ∠2 = 66°

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2 years ago

If x^2 = 30, what is the value of x?

Lapatulllka [165]

$x= +\sqrt{30} ~or ~ -\sqrt{30}$
I'm not sure why ± that sybol isn't working
all together you can write $x=±\sqrt{30}$

Ughh just ignore the "A" symbol .-.

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2 years ago