Please help me I have been stuck for a while now

Answer:

Step-by-step explanation:

The square is:  a²-2ab+b²

We have

[tex]x^2-3x[/tex]

it's:   [tex]x^2-2\cdot x\cdot\frac32[/tex]

so we need:   [tex]\left(\frac32\right)^2=\frac94[/tex]

[tex]x^2-2\cdot x\cdot\frac32+\frac94-\frac94+20=0\\\\(x-\frac32)^2-2.25+20=0\\\\(x-\frac32)^2=-17.75[/tex]

witch, of course, means no solution

Answer:

look at the picture i sent

Answer:

7800 pores on the back of your hand

Step-by-step explanation:

So, assuming the question is how many pores on the back of your hand...

Multiply the number of pores per square inch by the area of the back of your hand.

(6.5 x 10^2)(.12 x 10^2) = 7800

The number of the pores on the back of your hand will be 7800

The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle in a two-dimensional plane is called the area of the rectangle.

So, assuming the question is how many pores on the back of your hand...

Multiply the number of pores per square inch by the area of the back of your hand.

(6.5 x 10²)(.12 x 10²) = 7800

Hence the number of the pores on the back of your hand will be 7800

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Answer:D

Step-by-step explanation:simplify numeric and algebraic expressions using the laws of exponents, including integral and rational exponents.

Answer:

5.

Step-by-step explanation:

x axis is the same. do 7-2. Which equls 5.

Answer:

5.14

Step-by-step explanation:

The Square root of 26.4 is 5.14

Answer:

5.14

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer: 7

Step-by-step explanation: because it is 5 spaces over

Answer:

3.54

Step-by-step explanation:

let M be the midpoint of DF

M (x,y): x = (1+4)/2 = 2.5       y = (2 + -1)/2 = 0.5

Median from E intersect DF: EM = √(3 - 2.5)² + (4 - 0,5)²

EM = √0.5² + 3.5² = 3.54

2^10/5 = 2^2 = 4

................................

Answer:

V = 340.339

Step-by-step explanation:

V = [tex]\frac{\pi r^{2} h }{3}[/tex]

V = [tex]\pi[/tex][tex](5)^{2}[/tex] [tex]\frac{13}{3}[/tex] = 25[tex]\pi[/tex] [tex]\frac{13}{3}[/tex]  = about 340.3392 = 340.339

Answer:

340.17 ft.

Step-by-step explanation:

Using the formula, πr²h ÷ 3 (3.14 × radius × radius × height ÷ 3), we can plug-in the unknown values.

'r' means radius; 'h' means height; 'π' means pi.

The radius is 5; the height is 13.

πr²h (3.14 × radius × radius × height ÷ 3) - π5² × 13 = 340.166666667 (3.14 × 5 × 5 × 13 ÷ 3 = 340.166666667)

340.166666667 ≈ 340.17

Therefore, the area of this circular cone is 340.17 ft.

The square root of 9 is 3, so the square root of 11 would be a little greater than 3

The answer would be C. 3.3

Step-by-step explanation:

A. A 185° angle is an obtuse angle

..................

Answer:

A 185° angle is an obtuse angle

Step-by-step explanation:

An obtuse angle is any angle that is greater than 90° and less than 180°

Therefore, a 185° angle is not obtuse

Answer:

54°

Step-by-step explanation:

(x+87°) + (x+81°) + (x+30°) = 360°

A boat leaves the dock and travels 9 miles due south, then 12 miles due west. Hence, the length of the boat from the dock will be 15 miles.

If ABC is a triangle with AC as the hypotenuse and angle B with 90 degrees then we have:

[tex]|AC|^2 = |AB|^2 + |BC|^2[/tex]  

where |AB| = length of line segment AB. (AB and BC are the rest of the two sides of that triangle ABC, AC being the hypotenuse).

A boat leaves the dock and travels 9 miles due south, then 12 miles due west.

Let x be the length of the boat from the dock.

From the Pythagoras' theorem

[tex]|x|^2 = |12|^2 + |9|^2 \\\\x^2 = 144 + 81\\\\x^2 = 225\\\\x = \sqrt{225} \\\\x = 15[/tex]

Hence, the length of the boat from the dock will be 15 miles.

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Answer: 82 was the temperature at bedtime, 13 degree difference

Step-by-step explanation:

79 + 15 - 12

82, 13 difference

Answer:

1/5

Step-by-step explanation:

We can find the slope of a line given two points by using the following

m = ( y2-y1)/(x2-x1)

    = ( 3-0)/(7 - -8)

    = ( 3-0)/(7+8)

     = 3/15

    = 1/5

Answer:

[tex]\displaystyle m = \frac{1}{5}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (-8, 0)

Point (7, 3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Answer:

the volume if a freezer is the same amount of kitchen counter space inside it

Step-by-step explanation:

Answer: Choice D

|-50-12| = |-62| = 62 units

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

Explanation:

Draw out a number line. Mark two points on it at A = -50 and B = 12

The expression |A-B| represents the distance between the two points. So that would be....

|A-B| = |-50-12| = |-62| = 62

Note that negative distance does not make sense. The smallest distance can get is 0. So the result of an absolute value problem is never negative.

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

Slightly alternative method:

If you wanted, you could plot point C on the number like such that C is at 0.

The distance from A = -50 to C = 0 is exactly 50 units

From C = 0 to B = 12 is an additional 12 units

Therefore, the total distance is AC+CB = 50+12 = 62 units

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

Side note: |A-B| is the same as |B-A|. The order of subtraction doesn't matter as long as you use absolute value. If absolute value wasn't there, then A-B is different from B-A.

Answer:

I believe it would be 12.9

Step-by-step explanation:

perimeter is all of the outside lengths combined. if you take the 61.1 and subtract the lengths it gives you, the remaining length should be your answer

Answer:

The coordinates of B' and C' are [tex]B'(x,y) = (4,4)[/tex] and [tex]C'(x,y) = (8, -1)[/tex].

Step-by-step explanation:

Vectorially speaking, the translation of a point is represented by the following operation:

[tex]P'(x,y) = P(x,y) + T(x,y)[/tex] (1)

Where:

[tex]P(x,y)[/tex] - Original point.

[tex]P'(x,y)[/tex] - Translated point.

[tex]T(x,y)[/tex] - Translation vector.

First, we need to calculate the translation vector after knowing that [tex]A(x,y) = (3,4)[/tex] and [tex]A'(x,y) = (6,2)[/tex]. That is:

[tex]T(x,y) = A'(x,y) - A(x,y)[/tex]

[tex]T(x,y) = (6,2) - (3,4)[/tex]

[tex]T(x,y) = (3, -2)[/tex]

Finally, we determine the coordinates of points B' and C':

[tex]B(x,y) = (1,6)[/tex], [tex]T(x,y) = (3, -2)[/tex]

[tex]B'(x,y) = (1,6) + (3,-2)[/tex]

[tex]B'(x,y) = (4,4)[/tex]

[tex]C(x,y) = (5,1)[/tex], [tex]T(x,y) = (3, -2)[/tex]

[tex]C'(x,y) = (5,1) + (3,-2)[/tex]

[tex]C'(x,y) = (8, -1)[/tex]

The coordinates of B' and C' are [tex]B'(x,y) = (4,4)[/tex] and [tex]C'(x,y) = (8, -1)[/tex].

82 message

Step-by-step explanation:

Lucy send 5 messages Jim send 2 messages.

5 plus 2 equals 7.

75+7=82

Answer:

220 m²

Step-by-step explanation:

2(4 x 10) + 2(5 x 4) + 2(5 x 10) = 220

Answer:

120 ways

Step-by-step explanation:

For this question, you just have to use the permutation technique or multiplication rule.

By using the multiplication rule,

6×5×4=120 ways

By using the permutation technique,

6P3=120 ways

correct me if I'm wrong

The function of the polynomial graph when factored is (d) [tex]f(x) = x^3 - 8x^2+ 21x - 18[/tex]

From the question (see attachment), we have the following highlights:

This means that:

So, the function of the graph is:

[tex]f(x) = (x - 2)(x - 3)^2[/tex]

Expand the exponent

[tex]f(x) = (x - 2)(x^2 - 6x + 9)[/tex]

Expand

[tex]f(x) = x^3 - 6x^2 + 9x - 2x^2 + 12x - 18[/tex]

Collect like terms

[tex]f(x) = x^3 - 6x^2 - 2x^2+ 9x + 12x - 18[/tex]

[tex]f(x) = x^3 - 8x^2+ 21x - 18[/tex]

Hence, the function of the graph is (d)

Read more about polynomial functions at:

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The Answer Is X=84

Make an equation for x.

x+40+2/3x=180

x+2/3x=140

Combine like terms.

1 2/3x=140

140/1 2/3 =84

x=84

Answer:

.5, sqrt 14, 4

Step-by-step explanation:

.5, 3.7416, 4