3 years ago

Match each expression to its simplified form 9(x+2)

Mathematics

2 answers:

morpeh [17]3 years ago

7 0

Answer:

You forgot to add a picture-

Step-by-step explanation:

VLD [36.1K]3 years ago

5 0

Answer:use symbolmamth solver

Step-by-step explanation:

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tigry1 [53]

Answer:

Step-by-step explanation:

1. division to multiplication 4r

2. subtraction to addition m+15

3. division to multiplication 21/k or k/21

4. subtraction to addition m-16 or 16-m

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6 subtraction to addition p+24

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3 years ago

What is the image of (12, -9) after a dilation by a scale factor of 1/3 centered at the origin

erica [24]

Answer:

(4,-3)

Step-by-step explanation:

The scale factor is 1/3. So, multiply the numbers by 1/3.

12*1/3 is 4.

-9*1/3 is -3.

The new coordinates are (4,-3).

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2 years ago

Sound City sells the ClearTone-400 satellite car radio. For this radio, historical sales records over the last 100 weeks show 4

Ksivusya [100]

Answer:

See below

Step-by-step explanation:

$\bf \mu(x)$ is the average

$\bf \mu(x)=\frac{4*0+33*1+39*2+12*3+8*4+4*5}{100}=\frac{199}{100}=1.99\;radios/week$

$\bf \sigma^2(x)$ is the variance

$\bf \sigma^2(x)=\frac{4*(0-1.99)^2+33*(1-1.99)^2+39*(2-1.99)^2+12*(3-1.99)^2+8*(4-1.99)^2+4*(5-1.99)^2}{100}=\frac{128.99}{100}=1.2899$

$\bf \sigma(x)$ is the standard deviation

$\bf \sigma(x)=\sqrt{variance}$

$\bf \sigma(x)=\sqrt{1.2899}=1.1357\;radios/week$

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4 years ago

Use the formula v=u+at to find the velocity when the initial velocity is 3m/s2 the time is 7 seconds

Afina-wow [57]

Answer:

Step-by-step explanation:

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3 years ago

There tell me if u want brainliest

Mekhanik [1.2K]

Answer:

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Step-by-step explanation:

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3 years ago

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