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Ksivusya [100]
3 years ago
11

Evaluate the expression 2x + 5 when x = 4​

Mathematics
2 answers:
Korolek [52]3 years ago
5 0

Answer:

= 2(4) + 5

= 8 + 5

= 13

kykrilka [37]3 years ago
3 0

Answer:

x= 4 /7

Step-by-step explanation:

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The interior angle of a regular polygon is 4 times as large as the exterior angle.
Mrac [35]

Answer:

exterior angle = 36°

Step-by-step explanation:

In any polygon

exterior angle + interior angle = 180°

let x be the exterior angle then interior angle is 4x , then

x + 4x = 180

5x = 180 ( divide both sides by 5 )

x = 36

thus exterior angle = 36°

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2 years ago
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yan [13]
The area of D is given by:

\int\limits \int\limits {1} \, dA = \int\limits_0^7 \int\limits_0^{x^2} {1} \, dydx  \\  \\ = \int\limits^7_0 {x^2} \, dx =\left. \frac{x^3}{3} \right|_0^7= \frac{343}{3}

The average value of f over D is given by:

\frac{1}{ \frac{343}{3} }  \int\limits^7_0  \int\limits^{x^2}_0 {4x\sin(y)} \, dydx  = -\frac{3}{343}  \int\limits^7_0 {4x\cos(x^2)} \, dx  \\  \\ =-\frac{3}{343} \int\limits^{49}_0 {2\cos(t)} \, dt=-\frac{6}{343} \left[\sin(t)\right]_0^{49} \, dt=-\frac{6}{343}\sin49
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3 years ago
8.2 is 10% of what number
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What is greater -2 3/4 or -2.35
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(It is -2.35\)//ttfgfggg
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