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slavikrds [6]
3 years ago
13

okay this makes 0 sense... Show how you can solve the equation 3x=9 by multiplying each side by the reciprocal of 3... need to b

e the full steps pls​
Mathematics
1 answer:
Allisa [31]3 years ago
7 0

Answer:

x=3

Step-by-step explanation:

3x=9

Divide both sides by 3 and you get 1x=3 or basically x=3.

So the answer would be x=3.

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2.) What value for c will make the expression a perfect square trinomial?
andre [41]

Answer : \frac{49}{4}

Given expression is x^2 - 7x + c

To make perfect square trinominal we use completing the square method

In completing the square method we add and subtract the half of square of coefficient of middle term

Here coefficient of middle term is -7

Half of -7 is \frac{-7}{2}

Square of \frac{-7}{2} is (\frac{-7}{2})^2 = \frac{49}{4}

So the expression becomes x^2 - 7x +  [tex] \frac{49}{4} that gives perfect square trinomial

Hence , the value of 'c' is \frac{49}{4}


6 0
3 years ago
Read 2 more answers
Clare travels at a constant speed, as shown on the double number line
Usimov [2.4K]

Answer:

1. 36 miles

2. 108 miles

3. 234 miles

Step-by-step explanation:

Here we have the Distance in miles, time and calculated speed as follows;

Distance (miles)                  Elapsed time (hours)              Speed (miles/hour)

       0                                        0                                          0

       72                                      2                                          36

       144                                     4                                          36

       216                                     6                                          36

Distance = Speed (miles/hour) × Elapsed Time (hour)

Therefore, in

1. 1 hour, she travels

1 × 36  = 36 miles

2. 3 hours she travels

3 hours × 36 miles/hour = 108 miles

3. 6.5 hours she travels

6.5 hours × 36 miles/hour = 234 miles.

5 0
3 years ago
Question 28 (1 point)
aniked [119]

Answer:

+ 16

Step-by-step explanation:

x² - 8x = - 10

to complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 4)x + (- 4) = - 10 + (- 4)²

x² - 8x + 16 = - 10 + 16

thus 16 is added to both sides to complete the square

4 0
2 years ago
Which decimal is equivalent to
Masteriza [31]
You're answer is B.) 0.7 because both the fraction and the decimal read seven tenths.
3 0
3 years ago
Read 2 more answers
Does anyone know what to do for this equation? 40 of $2.40= ?
wolverine [178]

Answer:

0.96 or .96

Step-by-step explanation:

40 divided by 100 = 0.4 to change the percent to a decimal

and multiply 2.40 to 0.4, 0.4 times 2.40 is 0.96 or .96

3 0
3 years ago
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