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vova2212 [387]
3 years ago
6

Plzzzzzz help meeeeee

Mathematics
1 answer:
Tasya [4]3 years ago
3 0

Answer: B

Step-by-step explanation: 7*6 is 42

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The diameters of Douglas firs grown at a Christmas Tree Farm are normally distributed with a mean of 4 inches and a standard dev
leva [86]

Answer:

The proportion of trees greater than 5 inches is expected to be 0.25 of the total amount of trees.

Step-by-step explanation:

In this problem we have a normal ditribution with mean of 4.0 in and standard deviation of 1.5 in.

The proportion of the trees that are expected to have diameters greater than 5 inches is equal to the probability of having a tree greater than 5 inches.

We can calculate the z value for x=5 in and then look up in a standard normal distribution table the probability of z.

z=\frac{x-\mu}{\sigma}=\frac{5-4}{1.5}=0.67

P(x>5)=P(z>0.67)=0.25  

The proportion of trees greater than 5 inches is expected to be 0.25 of the total amount of trees.

8 0
3 years ago
Determine if f (x) = -x^3 + 4x^2 +7x - 6 is a odd or even degree
geniusboy [140]

Answer:

Neither

Step-by-step explanation:

It has a y intercept, which is -6, which changes the whole graph, so its neither

7 0
3 years ago
Read 2 more answers
Graph a line that is parallel to the line x=4 that goes through the point (−2,3)
Ivanshal [37]
<h2>Answer:</h2><h2>R=2</h2><h2 /><h2>Explanation:</h2><h2>x = 4  is a vertical line parallel to the y-axis and passing </h2><h2> through all points in the plane with an x-coordinate of 4 </h2><h2> x = 2  is parallel to  x = 4  so is a vertical line </h2><h2> passing through all points with x-coordinate of 2 </h2><h2> plot 2 or 3 points with an x-coordinate of 2 and  draw a straight line through them </h2><h2> for example  </h2><h2>( 2 , − 5 ) , (2 , 0 ) , ( 2 , 3 ) </h2><h2> graph{(y-1000x+4000)(y-1000x+2000)=0 [-10, 10, -5, 5]}</h2>
7 0
3 years ago
Find the constants a and b such that the function is continuous on the entire real line
Nezavi [6.7K]

Answer:

a=-2, b=1.

Step-by-step explanation:

1) according to the condition it is required to find the equation of line, which passes through points A(-3;7) and B(4;-7);

2) the equation of this line can be made up using the formula:

\frac{x-X_A}{X_B-X_A} =\frac{y-Y_A}{Y_B-Y_A};

\frac{x+3}{4+3} =\frac{y-7}{-7-7} ; \ < = > \ x+3=\frac{y-7}{-2}.

3) if to re-write the last equation, then

y=-2x+1;

4) finally, a= -2; b=1.

4 0
2 years ago
In the diagram, the length of segment TR can be represented by 5x – 4. Line n is a perpendicular bisector of line segment T V. I
lakkis [162]

Answer:

15

Step-by-step explanation:

The answer is 15 because you have to solve the equation which gets you 15

first cancel out the x

Then you will get ur answer

HOPE THIS HELP:)

STAY SAFE

5 0
3 years ago
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