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AnnyKZ [126]
2 years ago
13

HELP PLEASE RNNNNNN

Mathematics
1 answer:
GalinKa [24]2 years ago
8 0

Answer:

The three statements on the right hand side of the screen are the correct ones

Step-by-step explanation:

To take the average of the weight of the cat in the month of April is the following:

9.8 + 9.6 + 9.7 + 9.5 + 9.4 = 48

But then divide that by the number of samples:

48/5=9.6

The mean for April is 9.6

To take the average of the weight of the cat in the month of November is the following:

9.4 + 9.3 + 9.1 + 9.2 + 9 = 46

But then divide that by the number of samples:

46/5=9.2

Then, lastly, subtract the mean from November by the mean of April:

9.6-9.2=0.4

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May someone help me find A H AND K ?
NNADVOKAT [17]

Answer:

a = -2

h = -1

k = -6

Step-by-step explanation:

This is called the vertex form of a quadratic:

y = a(x – h)2 + k

To arrive at the answer, simply locate where each variable would be in place of the number.

I hope this helped you! If it did, please consider rating, pressing thanks, and marking my answer as Brainliest. It would be a big help! Have a great day! :)

7 0
3 years ago
Which expression is equivalent to 3 b minus 1? 5 b + 3 minus b minus b minus 4 5 b + 3 minus 2 b minus 5 2 b minus 5 + b minus 4
charle [14.2K]

Answer: 5b + 3 - b -b - 4

Step-by-step explanation:i think thats the answer pls mark brainliest

8 0
3 years ago
Read 2 more answers
What is (-6-8i)-(-9+4i) in standard form?
Ray Of Light [21]

Answer:

3 -12i

Step-by-step explanation:

(-6-8i)-(-9+4i)

distribute the minus sign

-6 -8i +9 -4i

combine like terms

-6+9 -8i -4i

3 -12i

8 0
2 years ago
Its super duper easy but im having some trouble<br> so can someone help me?
Klio2033 [76]

together = add

add the fractions

3 7/10 + 5 9/10

add the whole numbers first

3+5=8

add the fractions

7/10+9/10= 16/10

8 16/10

reduce 16/10 divide by 2

16/2= 8

10/2= 5

8 8/5

whole number changes to 9

8-5=3

denominator stays the same

9 3/5

Answer:

9 3/5

8 0
3 years ago
Identify the vertex, focus, and directrix. y=1/8y^2
Brut [27]
If all the equations for the directrix are "x = " lines then this is a y^2 parabola.  The actual equation is x= \frac{1}{8}y^2.  The standard form for a positive sideways-opening parabola is  (y-k)^2=4p(x-h).  We know from the equation that the vertex of the parabola is at the origin, or else the translation would be reflected within the parenthesis in the equation.  Our equation has no parenthesis to indicate movement from the origin.  The vertex is (0, 0).  Got that out of the way.  That simplifies our standard form down to  y^2=4p(x).  Let's take a look at our equation now.  It is  x= \frac{1}{8}y^2.  We could rewrite it and make it a closer match to the standard form if we multiply both sides by 8 to get rid of the fraction.  That gives us an equation that looks like this:  y^2=8x.  That means that 4p = 8, and p = 2.  p is the distance that the focus and the directrix are from the vertex.  Since this is a positive parabola, it opens up to the right.  Which means, then, that the focus is to the right of the vertex, 2 units to be exact, and the directrix is 2 units to the left of the vertex.  The formula for the focus is (h + p, k).  Our h is 0, our k is 0 and our p is 2, so the coordinates of the focus are (2, 0).  Going 2 units to the left of the origin then puts our directrix at the line x = -2.  Your choice then as your answer is b. 
6 0
3 years ago
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