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forsale [732]
2 years ago
12

I need help with this please I’m stuck.

Mathematics
1 answer:
disa [49]2 years ago
3 0

Answer:

No need to be stuck here is the answer

Step-by-step explanation:

A rectangle is a parallelogram, so its opposite sides are equal. The diagonals of a rectangle are equal and bisect each other.

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<img src="https://tex.z-dn.net/?f=r%20-%207%20%3D%207%20What%20ir%20r" id="TexFormula1" title="r - 7 = 7 What ir r" alt="r - 7 =
Art [367]
R-7=7 add the seven from both sides, leaving the r alone, because this is what you are trying to find. Thus the answer is r=14.

8 0
4 years ago
The standard form of a quadratic equation is given as y=ax^2+bx+c and vertex form is given as y=a(x−h)^2+k. Write a formula that
Tju [1.3M]

Answers:

h = -\frac{b}{2a}\\\\k = \frac{-b^2+4ac}{4a}\\\\

where 'a' cannot be zero.

=========================================================

Explanation:

The vertex is (h,k)

The x coordinate of the vertex is h which is found through this formula

x = -\frac{b}{2a}

For example, if we had the quadratic y = 3x^2-6x+5, then we'll plug in a = 3 and b = -6 to get: h = -\frac{b}{2a} = -\frac{-6}{2*3} = 1

------------

To find the value of k, we plug that h value into the original standard form of the quadratic and simplify.

y = ax^2+bx+c\\\\k = ah^2+bh+c\\\\k = a\left(\frac{-b}{2a}\right)^2+b\left(\frac{-b}{2a}\right)+c\\\\k = a*\frac{b^2}{4a^2}+\frac{-b^2}{2a}+c\\\\k = \frac{b^2}{4a}+\frac{-b^2}{2a}+c\\\\

k = \frac{b^2}{4a}+\frac{-b^2}{2a}*\frac{2}{2}+c*\frac{4a}{4a}\\\\k = \frac{b^2}{4a}+\frac{-2b^2}{4a}+\frac{4ac}{4a}\\\\k = \frac{b^2-2b^2+4ac}{4a}\\\\k = \frac{-b^2+4ac}{4a}\\\\

It's interesting how we end up with the numerator of -b^2+4ac which is similar to b^2-4ac found under the square root in the quadratic formula. There are other ways to express that formula above. We need a \ne 0 to avoid dividing by zero. The values of b and c are allowed to be zero.

7 0
3 years ago
You start at (8, 2). You move right 1 unit and down 2 units
vekshin1
(9,0)

X=8+1=9
Y=2-2=0

Hope it helps
6 0
3 years ago
What is 6.12 rounded to the nearest the tenth
zvonat [6]

Answer:

6.12 rounded to the nearest tenth is 6.1

8 0
3 years ago
Caissa can download a maximum of 1000 megabytes (MB) of songs or movies to her smartphone each month. The file size of each movi
Firdavs [7]

Answer:

85M + 4S <u><</u> 1000

Step-by-step explanation:

An inequality represents an expression that can have different values as long as the value is within the range given.  In this case, the number of songs and movies that Caissa can download can not exceed 1000 MB.  Since each move is 85 MB and each song is 4 MB, then any combination of these two files combined must not be larger than 1000 MB.  Using the variable (M) for movies and (S) for songs, we can set up an expression 85M + 4S to represent the number of movies times 85 for each movie and the number of songs times 4 for each song.  Since the total can be no greater than 1000, the expression would be less than or equal to (<u><)</u> 1000 MB.

7 0
3 years ago
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