2 years ago

Question 1 (10 points)

Mathematics

1 answer:

Neporo4naja [7]2 years ago

5 0

Step-by-step explanation:

C=2πR=πD=3.14*32=100.5 mm

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PLEASE HELP ME

Rama09 [41]

Answer:

y=x+11

Step-by-step explanation:

3 0

2 years ago

Find the equivalent ratio for 32:__=12:24

Igoryamba

32 : 64 = 12 : 24

or

$\displaystyle\\
 \frac{32}{\bf64} = \frac{12}{24}$

6 0

3 years ago

Read 2 more answers

Let g(x)= -x^2+4x+4. Find g(p). g(p)=_____

mixer [17]

Answer:

g(p)= -p^2+4p+4

Step-by-step explanation:

g(x)= -x^2+4x+4

Replace x with p

g(p)= -p^2+4p+4

8 0

3 years ago

Help me asap please

iren [92.7K]

A(-3, -1); B(2, -1), C(2, 3)

You can read the length of AB and BC.

|AB| = 5

|BC| = 4

Use the Pythagorean theorem:

$|AC|^2=5^2+4^2\\\\|AC|^2=25+16\\\\|AC|^2=41\to|AC|=\sqrt{41}\\\\|AC|\approx6.4$

The perimeter:

$P=|AB|+|BC|+|AC|\\\\P=5+4+6.4=15.4$

7 0

3 years ago

Find a such that the solution of y'' + y' − 2y = 0, y(0) = a, y' (0) = 1 tends to zero as t → +∞.

Kay [80]

Answer:

Step-by-step explanation:

$y'' + y' − 2y = 0, y(0) = a, y' (0) = 1$

Auxialary equation is

$m^2+m-2=0\\m=-2,1$

General solution is

$y=Ae^{-2x} +Be^x$

$y(0) = A+B =a$

$y'(0) = -2Ae^{2x} +Be^x = -2A+B = 1$

Eliminate B to get

3A =a-1

We know that y tends to 0 when x tends to infinity for any finite A

i.e. a should be a finite real number.

8 0

3 years ago