Ask question

Ask question

All categories

harkovskaia [24]

3 years ago

11

Morse code is a way to transmit text using a series of dots or dashes The Morse code for "ADD" is shown What fraction of the sha

pes are dots in the Morse code for ADD

2 answers:

salantis [7]3 years ago

5 0

5 shapes are dots because ADD on Morse code is •- -•• -••

liberstina [14]3 years ago

5 0

Answer:

-. -.. -..

A = -.

D = -..

You might be interested in

Can u help me ASAP. i need to know how to do it step by step

12345 [234]

Answer:

<em>19</em>

Step-by-step explanation:

$f(x) =4x^3-8x^2+ax+b$ has a factor $2x-1$ and

when divided by $x+2$ , remainder is 20.

To find:Remainder when divided by (x-1) ?

Solution:

$2x-1$ is a factor

$2x - 1 = 0 \Rightarrow x = \frac{1}{2}$ when we put this value of x to the function, it will become 0.

i.e.

$\Rightarrow f(\dfrac{1}{2}) =0 =4\times (\dfrac{1}2)^3-8(\dfrac{1}2)^2+\dfrac{a}{2}+b=0\\\Rightarrow \dfrac{1}{2}-2+\dfrac{a}{2}+b=0\\\Rightarrow 1-4+a+2b=0\\\Rightarrow a +2b=3 ......(1)$

Remainder is 20 when f(x) is divided by $x+2$

i.e.

$f(-2) =20$

$\Rightarrow f(-2) =20 =4\times (-2)^3-8(-2)^2-2a+b=20\\\Rightarrow -32-32-2a+b=20\\\Rightarrow -2a+b=84 ...... (2)$

Solving (1) and (2), Multiply equation (1) by 2 and adding to (2):

$5b=6+84\\\Rightarrow b = \dfrac{90}{5} = \bold{18}$

By equation (1):

$a+2(18) = 3\\\Rightarrow a = -33$

So, the equation becomes:

$f(x) =4x^3-8x^2-33x+18$

$\Rightarrow f(1) = 4(1) -8 (1) -33(1) +18 = \bold{19}$

So, when divided by (x-1), remainder will be <em>19</em>.

4 0

3 years ago

Which graph represents the solution to this inequality? 16x-80x<37+27

marin [14]

Answer:

A

Step-by-step explanation:

Hope this helps

8 0

3 years ago

Simplify this pleasee

DochEvi [55]

Answer:

<em><u>48</u></em>

Step-by-step explanation:

<em><u>3</u></em><em><u>(</u></em><em><u>4</u></em><em><u>)</u></em><em><u>^</u></em><em><u>2</u></em>

<em><u>48</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>your</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em>

5 0

3 years ago

How do you find percent decrease?

snow_lady [41]

I think thats how ur welcome

5 0

3 years ago

To prepare a chocolate cake, 2 1/4 cups of flour were used. How many grams of flour was used if each cup of flour weighs 120 gra

Marianna [84]

120/4 = 30
120 x 2 = 240
240 + 30 = 270
270 grams of flour were used

4 0

3 years ago