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pychu [463]
3 years ago
5

PLEASE ANSWER !! A rocket is launched from a tower. The height of the rocket, y in feet, is related to the

Mathematics
1 answer:
katovenus [111]3 years ago
3 0
The fully correct answer is 12
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Ava mixed 1 gallon of red paint, gallon of white paint, and 3 pints of blue paint. How many pints of paint did Ava use in all to
Mamont248 [21]
It 69 because 69 is insanely good 69 pints
4 0
3 years ago
President of Salas Products, is reviewing the warranty policy for her company's new model of automobile batteries. Life tests pe
never [62]

Answer:

2.28 %

Step-by-step explanation:

It is stated that battery life distribution is normal. First we need to find out where 65 hour battery life in this distribution falls by finding its z-score. We can use the following formula

z(x)=\frac{X-M}{s}  where

  • X the point we are looking to find its z-score, which is 65
  • M is the mean of the sample, which is 75
  • s is the standard deviation of the sample, which is 5

Replacing these numbers in the formula, z-score of the 65 hour battery life :

z(x)=\frac{65-75}{5}=-2

All the batteries fail within the first 65 months if their z-score is smaller than -2. Or we can state this also as: P(z≤-2) which is 0.0228

Thus 2.28 % of the batteries will fail within the first 65 months of use.

3 0
3 years ago
Y=-3x<br> y=6x-9 in substitution method
Anna007 [38]
The two equations given in the question are
y = - 3x
And
y = 6x - 9
Let us now substitute the value of y from the first equation to the second equation, we get
y = 6x - 9
- 3x = 6x - 9
-3x - 6x = - 9
- 9x = - 9
Multiplying both sides of the equation by -1 we get
9x = 9
x = 9/9
   = 1
Now let us put the value of x in the first equation, we get
y = - 3x
   = - (3 * 1)
   = - 3
6 0
3 years ago
Read 2 more answers
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
crimeas [40]

Answer:

332=y

Step-by-step explanation:

5 0
3 years ago
Which linear equation best represents the line of best fit for the scatterplot?
Lena [83]

Answer:

y = -\frac{1}{3}x

Step-by-step explanation:

The scatter plot trends downward from left-> right, meaning that it is negative. Next, use two points to solve for the value for the slope.

In this case, I will use (-3 , 1) & (0 , 0)

Use the following equation. m = slope:

m = \frac{y_2 - y_1}{x_2 - x_1}

Let:

(x_1 , y_1) = (0 , 0)\\(x_2 , y_2) = (-3 , 1)

Plug in the corresponding numbers to the corresponding variables:

m = \frac{1 - 0}{-3 - 0} = \frac{1}{-3} = -\frac{1}{3}

Your answer will be:

y = -\frac{1}{3}x

7 0
2 years ago
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