Please can someone explain place value to me. I failed in my test dunno how tho cause I studied place value in year 3 lol

Answer:

The measure of the indicated angle is 142°

Step-by-step explanation:

The sum of the measures of the interior angles of a polygon is

∑m = (n - 2) × 180°, where

In the given figure

∵ The polygon has 6 angles

∴ n = 6

→ Use the rule above to find the sum of the measures of its interior ∠s

∵ ∑m = (6 -2) × 180°

∴ ∑m = 4 × 180°

∴ ∑m = 720°

∵ The measures of its interior ∠s are (2x - 50)°, (x + 40), 80°, (x + 20)°,

   x°, 150°

→ Add them to find their sum

∴ ∑m = 2x - 50 + x + 40 + 80 + x + 20 + x + 150

→ Add the like terms in the right side

∴ ∑m = (2x + x + x + x) + (-50 + 40 + 80 + 20 + 150)

∴ ∑m = 5x + 240

→ Equate the right sides of ∑m

∵ 5x + 240 = 720

→ Subtract 240 from both sides

∴ 5x + 240 - 240 = 720 - 240

∴ 5x = 480

→ Divide both sides by 5

∴ x = 96

→ To find the indicated angle substitute x in its measure by 96

∵ The measure of the indicated angle = 2(96) - 50

∴ The measure of the indicated angle = 192 - 50

∴ The measure of the indicated angle = 142°

Answer:

Step-by-step explanation:

Use two points from the graph:

Slope intercept formula:

y-intercept is b = 2 as per the first point

Slope is found using slope formula:

So the equation is:

Answer:

The negative solution = x = -4

Step-by-step explanation:

Let the number be = x

The square of number = x²

The difference between the square of a number and 28 = x²-28

Given that the difference of the square of a number and 28 is equal to three times that number.

Thus, the equation becomes

[tex]x^2-28=3x[/tex]

subtract 3x from both sides

[tex]x^2-28-3x=3x-3x[/tex]

[tex]x^2-3x-28=0[/tex]

[tex]\left(x+4\right)\left(x-7\right)=0[/tex]

[tex]x+4=0\quad \mathrm{or}\quad \:x-7=0[/tex]

[tex]x=-4,\:x=7[/tex]

Thus, the negative solution = x = -4

Answer:

2. A(n) = 8+(n-1)-6

3. (-3-(-4))/(-6-8)

= -1/14

Answer:

see explanation

Step-by-step explanation:

(2)

The explicit formula for an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 8 and d = a₂ - a₁ = 2 - 8 = - 6 , thus

[tex]a_{n}[/tex] = 8 - 6(n - 1) = 8 - 6n + 6 = 14 - 6n

(3)

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (8, - 4) and (x₂, y₂ ) = (- 6, - 3)

m = [tex]\frac{-3+4}{-6-8}[/tex] = [tex]\frac{1}{-14}[/tex] = - [tex]\frac{1}{14}[/tex]

Answer: 6, 4.5

Step-by-step explanation:

Answer:

Both are related as both have the answer same that is x=2.

Answer:

It should be about 112 degrees if rounded about 110

Step-by-step explanation:

Answer:

B=55

Step-by-step explanation:

2x+3x+2x+5=180

7x=175

X=25

B= 2x+5

B=2*25 +5

B=55

Answer:

Four times 'M' equals to minus eight

Answer:

‍♀️ i think if its a positive make it a negative and a negative make it a positive

Answer:

8

Step-by-step explanation:

dhdhdhdhdhdhdhddijd

Answer:

6 pieces of pizza was started with

Answer:

2 outfits.

Step-by-step explanation:

Answer:

12 different outfits

Step-by-step explanation:

3 shirts

jeans or skirt: 2 choices

boots or flats: 2 choices

If you have several thing you can do and each one has a number of choices, the total number of variations is the product of the numbers of choices.

3 * 2 * 2 = 12

Answer: 12 different outfits

Answer:

Mattie's perspective on her grandfather's strong-headed opinions gives readers an understanding of the influence he has on her. Mattie's perspective on the events of 1793 gives readers an understanding of the experiences and uneasiness of the time

Answer: 350

Step-by-step explanation: If you multiply the amount of workers by two, then you divide the amount of time by two, and vice versa. So, in other words, whatever number you multiply the workers by, divide the time by that same number. I hope this helps!

Answer:

5/2

Step-by-step explanation:

Start from (-2,-2) and count up and over until you get to (0,3) because slope is rise/run.

5/2

If you want to check your answer, you can always use the slope formula which is: y2-y1/x2-x1

3--2/0--2 = 5/2

Answer:

No, because people who are the same age can have different zip codes!!

I took a test with this question and got it correct!!

Step-by-step explanation:

Answer:

x = 81/4

Step-by-step explanation:

multiply both sides by 4

4x + 15 = 96

subtract 15 from both sides

4x = 81

divide both sides by 4

x= 81/4

i hope that's right

Answer:

81/4

Step-by-step explanation:

Answer:

Carla needs to make at least 11 two-pointer shots in the surrent game

Step-by-step explanation:

The first thing we can do is to find the difference between the number of points that Carla scored in her first game and her second game.

This will be 46 - 24 = 22 points difference

Carla needs to make a certain number of two-pointers to get at least the same score she had in her previous game.

We can get this number of two-pointers that needed to be made by dividing the difference in scores by 2

i.e number of two-pointer shots = 22/2 =11 shots

Therefore, Carla needs to make at least 11 two-pointer shots to be able to get the same score in her current game.

Answer:

1 2/3

Step-by-step explanation:

-4 1/3 ÷ -2 3/5

-13/3 ÷ -13/5

-13 x 5/ 3x -13

-65/-39

1 2/3

Answer:

C: (1, 2.5)

Step-by-step explanation:

The point is not exactly on 2 or 3 on the y axis. So it is at 2.5. and when you read a graph you need to look at it from x to y so it should be C: (1, 2.5).

Answer:

y = 0 is parallel to y= 4 ..plz mark my answer as brainlist plzzzz if correct

y= 0 is parallel to y=4

I think it will help you.

Answer:

hosta = 2 $,,, geranium = 5 $

Step-by-step explanation:

if we make two eq.

1) .... 54 = 2h + 10g

2) ...... 40 = 10h + 5g

if we multiply 1st by -5 it turns to

3) ..... -270 = -10h - 50g

cancel both 10h

add eq. .. becomes : -230 = -46g

g = 5

substitute in any find , that h = 2

Answer:

y = 5x + 14

Step-by-step explanation:

y represents the total money their parents give them. X represents the number of chores. 5 is the sum of 3 + 2 since Jack gets $3 for each chode while Bella gets $2 for each chore. 14 is the set amount of money the receive each week since 8 + 6 is 14.

Answer:

23.3 and 11.05

Step-by-step explanation:

hope it helped!

area of the whole figure

= (x + 1)(2x + 3)

= x(2x + 3) + 1(2x + 3)

= 2 {x}^{2} + 3x + 2x + 3

= (2x)^(2} + 5x + 3

area of the unshaded region

= x(2x)

= 2x²

area of the shaded region

= 2x² + 5x + 3 - 2x²

= (2x² - 2x² ) + 5x + 3

= 5x+ 3

THEREFORE,

THE AREA OF THE FRAME IS C. 5x + 3

Answer:

Step-by-step explanation:

a)1) As denominators are same, keep the same denominator for the result also

Add the numerators and write the new numerator.

[tex]\frac{3y}{4}+\frac{5y}{4}=\frac{3y+5y}{4}=\frac{8y}{4}[/tex] = 2y

20 Reduce to simplest form by dividing the numerator and denominator by GCF

Answer:

x = 2 , y = 0 , z = 3

Step-by-step explanation:

Cramer's rule is a rule through which we can find the solution of linear equation.

we have the three linear equations as

x+2y+3z=11

2x+y+2z=10

3x+2y+z=9

AX=B  

A: coefficient matrix

X= unknown vectors(x,y,z)

D = values of the linear equation (11 , 10 , 9)

now we find the determinant of the given linear equation

determinant of the matrix will be

A = [tex]\left[\begin{array}{ccc}1&2&3\\2&1&2\\3&2&1\end{array}\right][/tex]  = 1(1-4) - 2(2-6) + 3(4 - 3)

                    = 1(-3) - 2(-4) + 3(1)

                    = -3+8+3 = 8

also D[tex]\neq 0[/tex]

so the determinant is Non zero we can apply Cramer's rule

we will be replacing the first column of the coefficient matrix A with the values of D

by replacing the first column we will get the value of the variable 'x'

Dx =  [tex]\left[\begin{array}{ccc}11&2&3\\10&1&2\\9&2&1\end{array}\right][/tex]   = 11(1-4) -2(10-18) + 3(20-9) = -33+16+33 = 16

x = [tex]\frac{Dx}{D}[/tex]  = [tex]\frac{16}{8}[/tex] = 2

similarly

Dy = [tex]\left[\begin{array}{ccc}1&11&3\\2&10&2\\3&9&1\end{array}\right][/tex] = 1(10-18) -11(2-6) + 3(18 -30) = -8 +44 -36 = 0

y = [tex]\frac{Dy}{D}[/tex] = 0

Dz= [tex]\left[\begin{array}{ccc}1&2&11\\2&1&10\\3&2&9\end{array}\right][/tex] = 1(9 - 20) -2(18 - 30) + 11(4 -3) = -11 +24 +11 = 24

z = [tex]\frac{Dz}{D}[/tex] = [tex]\frac{24}{8} = 3[/tex]

so we have the solution as

x = 2 , y = 0 , z = 3

Therefore the solution for the given linear equations is (2,0,3).

Answer:

C

Step-by-step explanation:

We did this in math ik it is right. Hope this helps! :)