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charle [14.2K]
3 years ago
5

What number must be added to the expression below to complete the square ? x2+7x

Mathematics
1 answer:
stellarik [79]3 years ago
6 0

Answer:

you must add 2 to the equation

Step-by-step explanation:

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What can you conclude from the box-and-whisker plot?​
muminat

Answer:

that it is a cat :')

Step-by-step explanation:

remember, whisker = cat

3 0
2 years ago
Why is the equation y-y1=m(x-x1) called the point-slope form?
MatroZZZ [7]

Answer:

The equation of the line with slope m = 2 and passing through the point (1, 1) will be:

y = 2x

Step-by-step explanation:

We know that the point-slope form of the line equation is

y-y_1=m\left(x-x_1\right)

where

  • m is the slope of the line
  • (x₁, y₁) is the point

The formula y-y_1=m\left(x-x_1\right) is termed as the point-slope form of the line equation because if we know one point on a certain line and the slope of that line, then we can easily get the line equation with this formula and, hence, determine all other points on the line.

For example, if we are given the point (1, 1) and slope m = 2

Then substituting the values m = 2 and the point (1, 2)

y-y_1=m\left(x-x_1\right)

y - 2 = 2(x-1)

y - 2 = 2x-2

y = 2x-2+2

y = 2x

Therefore, the equation of the line with slope m = 2 and passing through the point (1, 1) will be:

y = 2x

5 0
2 years ago
If the measure of <8 is 112 degrees, the the m<6 = ?
WITCHER [35]

Answer:

112 Degrees

Step-by-step explanation:

Since 8 is 112 degrees, and 6 is opposite of 8, that means the measure of angle 6 is also 112 degrees

6 0
2 years ago
Read 2 more answers
What figure has a perimeter of 22 units?
Sav [38]
Without knowing the shape selection you have i cant really say anything.  But with a square you wouldnt have any whole numbers, nor would a triangle give you whole number, than again no shape that i can think of would give whole numbers.  
6 0
3 years ago
Justify Reasoning Determine whether 3x + 12 + x is equivalent to 4(3 + x). Use properties of operations to justify your answer.
Orlov [11]
For 3x + 12 + x, do like terms:
4x + 12
For 4(3 + x), multiply
12 + 4x
They are both the same, just written in different ways. One is adding like terms and the other is multiplying with parentheses. Even though it may be switched around, it is still the same.

Hope this helps :)
4 0
3 years ago
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