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lubasha [3.4K]
3 years ago
8

Hey do you mind helping me because I don’t know what to put on the Redbox and I don’t know what to do if you know it please help

me

Mathematics
1 answer:
Dima020 [189]3 years ago
5 0

Answer:

proportional

Step-by-step explanation:

as x increases y increases

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Plz!!!!!! HELP!!! Need this!!
vesna_86 [32]

Answer:

i cant see it

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
6.- Find the area under the standard normal distribution: to the left of z=-1.55.
Kisachek [45]

Answer:

P(z

Step-by-step explanation:

For this case we want to find this probability:

P(z

Because they want the area to the left of the value. We need to remember that the normal standard distribution have a mean of 0 and a deviation of 1.

We can use the following excel code: =NORM.DIST(-1.55,0,1,TRUE)

And we got:

P(z

The other possibility is use the normal standard table and we got a similar result.

5 0
3 years ago
Help I don’t no question 1
alukav5142 [94]

Answer:

The answer would be D+ 38.4 cm

Step-by-step explanation:

You would do 1.6 cm times 24

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3 years ago
For an activity in class, student used pieces of string to measure road on a map. They used a map scale to determine the distanc
ivanzaharov [21]

Answer:

Step-by-step explanation:

85miles¯\_(ツ)_/¯

7 0
2 years ago
What is the domain and range of the function y = 2x2 - 4x - 10?
11111nata11111 [884]

Answer:

Step-by-step explanation:

The domain of all polynomials is all real numbers.  To find the range, let's solve that quadratic for its vertex.  We will do this by completing the square.  To begin, set the quadratic equal to 0 and then move the -10 over by addition. The first rule is that the leading coefficient has to be a 1; ours is a 2 so we factor it out.  That gives us:

2(x^2-2x)=10

The second rule is to take half the linear term, square it, and add it to both sides.  Our linear term is 2 (from the -2x).  Half of 2 is 1, and 1 squared is 1.  So we add 1 into the parenthesis on the left.  BUT we cannot ignore the 2 sitting out front of the parenthesis.  It is a multiplier.  That means that we didn't just add in a 1, we added in a 2 * 1 = 2.  So we add 2 to the right as well, giving us now:

2(x^2-2x+1)=10+2

The reason we complete the square (other than as a means of factoring) is to get a quadratic into vertex form.  Completing the square gives us a perfect square binomial on the left.

x^2-2x+1=(x-1)^2 and on the right we will just add 10 and 2:

2(x-1)^2=12

Now we move the 12 back over by subtracting and set the quadratic back to equal y:

2(x-1)^2-12=y

From this vertex form we can see that the vertex of the parabola sits at (1,-12).  This tells us that the absolute lowest point of the parabola (since it is positive it opens upwards) is -12.  Therefore, the range is R={y|y ≥ -12}

4 0
3 years ago
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