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kotykmax [81]
3 years ago
15

Write 3.1405 x 10° in standard form

Mathematics
1 answer:
-BARSIC- [3]3 years ago
3 0

Answer:

<em>3.1405</em>

Step-by-step explanation:

10^{0} = 1   ⇒ This is always the case

So,

3.1405 × 1 = 3.1405

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Dan plans to carpet hiss 288-square-foot living room. How much will it cost if carpeting costs $28 per square yard. (9ft = 1 yd)
Rama09 [41]
It will cost Dan $896
B/c 288/9=32
32*28=896
8 0
3 years ago
Read 2 more answers
(4) A spherical balloon is being inflated so that its diameter is increasing at a constant rate of 6 cm/min. How quickly is the
fredd [130]

In terms of its radius r, the volume of the balloon is

V(r)=\dfrac{4\pi}3r^3

The diameter d is twice the radius, so that in terms of its diameters, the balloon's volume is given by

V(d)=\dfrac{4\pi}3\left(\dfrac d2\right)^3=\dfrac\pi6d^3

Differentiate both sides with respect to time t:

\dfrac{\mathrm dV}{\mathrm dt}=\dfrac\pi2d^2\dfrac{\mathrm dd}{\mathrm dt}

The diameter increases at a rate of \frac{\mathrm dd}{\mathrm dt}=6\frac{\rm cm}{\rm min}. When the diameter is d=50\,\mathrm{cm}, we have

\dfrac{\mathrm dV}{\mathrm dt}=\dfrac\pi2(50\,\mathrm{cm})^2\left(6\frac{\rm cm}{\rm min}\right)=7500\pi\dfrac{\mathrm{cm}^3}{\rm min}

or about 23,562 cc/min (where cc = cubic centimeters)

5 0
3 years ago
Find the product: −5/3 (−2/3 )(−18)
Dovator [93]

Answer:

A) −20

Step-by-step explanation:

−5/3 (−2/3 )(−18)

Multiply the first and  second terms.  A negative times a negative is a positive

-5/3 * -2/3 = 10/9

10/9 * -18

Rewriting for easier math

-18/9 * 10

-2 * 10

-20

4 0
4 years ago
Read 2 more answers
30 POINTS!!
Viefleur [7K]

Answer:

400

Step-by-step explanation:

He makes $4 per shirt ($12-$8).   $1600/4 = 400.  So he woud need to see at least 400 shirts to break even.

6 0
3 years ago
Law of sines?? side c=22 side a=16 side b= 21 solve for angle c??? help
den301095 [7]

Answer:

Angle C measures:  71.52^o

Step-by-step explanation:

When you know the length of the three sides of the triangle and not a single angle, the law of sines is of no use. You need to use the law of cosines. In your case, since you want to find angle "C", you use the following;

c^2=a^2+b^2-2\,a\,b\,cos(C)\\2\,a\,b\,cos(C)=a^2+b^2-c^2\\cos(C)=\frac{a^2+b^2-c^2}{2\,a\,b} \\cos(C)=\frac{16^2+21^2-22^2}{2\,(16)\,(21)}\\cos(C)=0.3169643\\C=arccos(0.3169643)\\C=71.52^o

4 0
3 years ago
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