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Svetach [21]
3 years ago
11

Can someone explain to me how to do this I don’t know how to do it

Mathematics
1 answer:
Agata [3.3K]3 years ago
4 0

Answer:

graph the function and for the points, look at the x values and then you'll find their y values  in the function u graphed.

Step-by-step explanation:

Or plug in the values for x. (ONE AT A TIME!) and solve it that way.

Hope this helps.

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PLEASE HURRY<br><br> 9x^2 + 64 = 0<br><br> I NEED THE WORK SHOWN IN ORDER TO GET CREDIT
seropon [69]

Answer:

x = ± \frac{8}{3} i

Step-by-step explanation:

subtract 64 from both sides

9x² = - 64 ( divide both sides by 9 )

x² = - \frac{64}{9} ( take the square root of both sides )

x = ± \sqrt{-64/9} = ± \frac{8}{3} i


6 0
3 years ago
Read 2 more answers
The average of 7 numbers is 60. The average of the first three numbers is 50, while the average of the last three is 70. What mu
Svetradugi [14.3K]

From the last two facts, we get

\dfrac{x_1+x_2+x_3}3=50\implies\dfrac{x_1+x_2+x_3}7=\dfrac{150}7

\dfrac{x_5+x_6+x_7}3=70\implies\dfrac{x_5+x_6+x_7}7=30

Then

\dfrac{x_1+x_2+\cdots+x_6+x_7}7=60\implies\dfrac{x_4}7=60-\dfrac{150}7-30\implies\boxed{x_4=60}

4 0
3 years ago
Plz help I need answer​
kati45 [8]

Answer:

Whats the audio

Step-by-step explanation:

Oh....ok

3 0
3 years ago
You need to purchase the five items on the table below from the store. Make an estimate of the value of each item.
Katarina [22]
9 dollars should be the answer
8 0
3 years ago
Find the value of x.
faust18 [17]

Answer:

x = 18

Step-by-step explanation:

Since that is a right angle, we know that the total degrees of the angle is 90 degrees.

1) Based off of that, you can form the equation: 3x + 2x = 90.

2) solve the equation for x. Combine like terms: 3x + 2x = 5x.

    5x = 90

3) So now, divide both sides by 5.  90 / 5 = 18

      x = 18

Therefore, the correct answer is x = 18.

3 0
3 years ago
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