Question 11

Solve for x.

willl give brainliest

Answer:

wdym?

Step-by-step explanation:

Answers:

First row = 3

Second row = 12

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

Explanation:

Think of a square that has sides of 5 by 5. It's area will be 5*5 = 25. That means 25 is a perfect square.

We rule out 81 for similar reasons because 81 = 9*9

Also, 100 = 10*10 and 121 = 11*11

The only thing left is 3 which isn't a perfect square. We cannot multiply two of the same whole number to end up with an area of 3 square units.

Put another way, [tex]\sqrt{3}[/tex] is not a whole number while something like [tex]\sqrt{81} = 9[/tex] is a whole number.

This is all for the first row.

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

The second row is the same story.

4 = 2*2

9 = 3*3

144 = 12*12

36 = 6*6

This rules out everything but 12 in the second row. You can determine what is a perfect square through trial and error, or by memorizing what the perfect square numbers look like. With enough practice, they should be fairly memorized by some point.

Answer:

[tex]a) \: \: e = 11 \: \: and \: \: f = 7 \\ \\ \frac{e + 5}{4f - 4} \\ \\ \frac{11 + 5}{4(7) - 4} \\ \\ \frac{16}{28 - 4} \\ \\ \frac{16}{24} \\ \\ \frac{2}{3} \\ 0.666 \: \: \: ans \: \\ \\ \\ b) \: \: e = - 1 \: \: and \: \: f = - 4 \\ \\ \frac{e + 5}{4f - 4} \\ \\ \frac{ - 1 + 5}{4( - 4) - 4} \\ \\ \frac{ - 1 + 5}{ - 16 - 4} \\ \\ \frac{4}{ - 20} \\ \\ - \frac{1}{5} \\ - 0.2 \: \: ans \: \: [/tex]

Step-by-step explanation:

Solution:

a. when e = 11 and f = 7

[tex] \\ \: \: \frac{e + 5}{4f - 4} [/tex]

[tex] \\ = \frac{11 + 5}{4 \times 7 - 4} [/tex]

[tex] \\ = \frac{11 + 5}{28 - 4} [/tex]

[tex] \\ = \frac{16}{24} [/tex]

[tex] \\ = { \cancel \frac{16}{{24}}}[/tex]

[tex] \\ = \frac{2}{3} [/tex]

b. when e = -1 and f = -4

[tex] \\ \: \frac{e + 5}{4f - 4} [/tex]

[tex] \\ = \frac{{ - 1 + 5} }{4( - 4) - 4} [/tex]

[tex] \\ = \frac{ - 1 + 5}{ - 16 - 4} [/tex]

[tex] \\ = \frac{4}{ - 20} [/tex]

[tex] \\ = { \cancel\frac{4}{ - 20}} [/tex]

[tex] \\ = \frac{ - 1}{5} [/tex]

Answer:

[tex]x=\frac{3}{7} lbs[/tex]

Step-by-step explanation:

[tex]x=\frac{3}{4}(x)+\frac{3}{4}[/tex]

[tex]x+\frac{3}{4}(x)=\frac{3}{4}[/tex]

[tex]\frac{7}{4}(x)=\frac{3}{4}[/tex]

[tex]x=\frac{12}{28} =\frac{3}{7}lbs[/tex]

Answer:

60° option b) is the answer

Answer:

E

Step-by-step explanation:

let a, b, c represent the number of students in 6th, 7th, 8th grade

ratio of students : teachers = 28 : 1

There are 82 teachers , so 28 × 82 = 2296 students

Then

a + b + c = 2296 , that is

828 + b + c = 2296 ( subtract 828 from both sides )

b + c = 1468 → E

What is the measure of an angle?

Answer:

The measure of an angle is made of Two rays.

Step-by-step explanation:

In Geometry, an angle measure can be defined as: the measure of the angle formed by the two rays at a common vertex. Angles are measured in degrees ( °), using a protractor.

I hope this is the answer you were looking for! If you need me to be more specific then tell me how and what!

Answer:

x=-2.01970690

Step-by-step explanation:

Yes it is a factor

Answer:

Yes, x+2 is a factor of f(x)

Step-by-step explanation:

-2 | 1   -3   -3    9   -4    12

   ___-2_ 10_-14_10  -12

     1   -5    7    -5   6  | 0

Since [tex]\frac{x^5-3x^4-3x^3+9x^2-4x+12}{x+2}=x^4-5x^3+7x^2-5x+6[/tex] with no remainder, then x+2 is a factor

Answer:

3/20 is the answer.......

Answer:

the first one

Step-by-step explanation:

Answer:

∠ E = 57°

Step-by-step explanation:

Since DF = EF then the triangle is isosceles with 2 base angles congruent , so

∠ E = ∠ D = 4x + 1

The sum of the 3 angles in the triangle = 180°

Sum the 3 angles and equate to 180

4x + 1 + 4x + 1 + 5x - 4 = 180 , collect like terms

13x - 2 = 180 ( add 2 to both sides )

13x = 182 ( divide both sides by 13 )

x = 14

Then

∠ E = 4x + 1 = 4(14) + 1 = 56 + 1 = 57°

Answer:

A

Step-by-step explanation:

because if you multiply 1 times 5 it's 5 and if you multiply 5 times 5 it would be 25 which would be A

Answer:

Than just stay on brainly. lol

Answer:1.2

Step-by-step explanation:

Answer:

5/6 or 0.83

Step-by-step explanation:

there's 5 piece but 6 people. everyone would get less then an equal piece.

5÷6= 0.833333 or in fraction 5/6.

if you divide 6 people and 5 pieces you get 1.2 size piece. that's more then the cake has, which is 5 pieces. That's what I think.

Answer:

1/2 POUNDS

Step-by-step explanation:

3/8 - LIGHTEST SQUASH

7/8 - HEAVIEST SQAUSH

SUBTRACT THEM YOU GET 4/8

4/8 SIMPLIFIED IS 1/2

THUS THE SQUASH ARE 1/2 POUND DIFERENCE

Answer:

y-intercept is (0, -4)

x-intercept is (-5, 0)

Step-by-step explanation:

Remember the x-intercept and the y-intercept are the points on the graph where the line crosses the x-axis and the y-axis respectively.

We can find the x intercept and the y intercept a couple of ways. One way is to graph the line, which I will do later. The other way is to do a little math.

The equation of a line in y-intercept form is

[tex]y = mx + b[/tex]

where b = the y-intercept

In our equation above and solving for y we get the y-intercept is -4

[tex]4x + 5y = - 20 \\ 5y = - 4x - 20 \\ y = - \frac{4}{5} x - 4[/tex]

Doing more algebra and solving for x we get the x intercept is negative 5.

[tex]y = - \frac{4}{5} - 4 \\ y + 4 = - \frac{4}{5} x \\ x = - \frac{5}{4} y - \frac{20}{4 } \\ x = - \frac{5}{4} y - 5[/tex]

Answer:

ko nhầm thì là Thái Lan ...... đúng là Thái Lan

Answer: Y=10x+2

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

Here you go, has to be 100 characters and did it quick

Answer:

52

Step-by-step explanation:

180-72=108

180-108-20=52

Answer:

(x-2) (x+5)

Step-by-step explanation:

2 * 5 = 10

(-2) + 5 = 3

3x + x² - 10 = (x-2) (x+5)

Answer:

Answer:

D

I feel the graph speaks for itself. Hope I helped! :)

Answer:

When a transversal crosses parallel lines, corresponding angles are congruent.

Step-by-step explanation:

When a transversal crosses parallel lines, corresponding angles are congruent can be used to prove that LM and NO are parallel lines

An angle is formed from the intersection of two or more lines. Types of angles are acute, obtuse and right angle.

If two lines are cut by a transversal and the corresponding angles are congruent, the lines are parallel.

Hence, When a transversal crosses parallel lines, corresponding angles are congruent can be used to prove that LM and NO are parallel lines

Find out more on angle at: https://brainly.com/question/25716982

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Answer:

Uh, there's a format error, can you add a photo?

Step-by-step explanation:

The area of the parallelogram is given by the distance formula and the value of A = 13 square units

Let the two points be A ( x₁ , y₁ ) and B ( x₂ , y₂ )

The distance from A to B is the same as the distance from B to A

Distance between two points is the length of the line segment that connects the two points in a plane.

The formula to find the distance between the two points is usually given by D = √( ( x₂ – x₁ )² + ( y₂ – y₁ )²)

This formula is used to find the distance between any two points on a coordinate plane or x-y plane

Given data ,

Let the parallelogram be ABCD

Let the height of the parallelogram be AD

And , the base of the parallelogram be DC

where the area A = AD x DC

Now , the coordinates of A = A ( 3 , 6 )

The coordinates of D = ( 2 , 2 )

The coordinates of C = C ( 5 , 1 )

The distance between the two points is usually given by D = √( ( x₂ – x₁ )² + ( y₂ – y₁ )²)

So , the distance of AD = √ ( ( 3 - 2 )² + ( 6 - 2 )² )

The distance of AD = height of parallelogram AD = √17

And , the distance of DC = √ ( ( 2 - 5 )² + ( 2 - 1 )² )

So , the distance of DC = width of parallelogram DC = √10

And , area of parallelogram A = AD x DC = √17 x √10 = √170 units²

Hence , the area of parallelogram is A = 13 square units

To learn more about distance between 2 points click :

https://brainly.com/question/12661159

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The complete question is attached below :

What is the area of parallelogram ABCD?

13 square units

14 square units

15 square units

16 square units

Step 1: Find the slope

Point 1 = (0, -4)

Point 2 = (-7, -10)

m = (-10 - - 4) / (-7 - 0) = (-10 + 4) / (-7 - 0) = -6 / -7 = 6/7

m = 6/7

Step 2: Find the y-intercept

Slope-Intercept Form: y = mx + b

-m is the slope

-b is the y-intercept

---Plug in any of the given points as well as the slope into slope-intercept form and solve for b

Point: (-7, -10)

-10 = (6/7)(-7) + b

-10 = -6 + b

b = -4

Step 3: Form the equation

Slope-Intercept Form: y = mx + b

m = 6/7

b = -4

y = 6/7x - 4

Hope this helps!! :)

Answer:

[tex] 1)\: 3.1160 = 3.116 \\ 2) \: 13.1242 \\ 3) \: 3.5568 \\ 4) \: 0.4000 = 0.4 \\ 5) \: 3.8674[/tex]

I hope I helped you^_^

Answer:

a) 100m

b) 2m/s

Step-by-step explanation:

a)==>> 2+4+6+8+10(8) = 100m

b)==>> Variable "a" = change OVER time ([tex]\frac{change}{time}[/tex]) = 8m/4s = 2m/s

Refer to the attachment

Answer:

y = -3x - 8

Step-by-step explanation:

yeah-ya.... right?

Answer:

2

Step-by-step explanation:

all real number x smaller than or equal to -2