Please help I did it wrong can you help me please???? I will give you 10 points

Answer:

a) x = 4 cm

Step-by-step explanation:

x + 2x + 2x = 20 cm

5x = 20

x = 4 cm

I believe that it is (B).

Answer:

The radius should be 0.5

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

1.2 + x = -1.8

subtract 1.2 from each side of the equation:

x = -3

Answer:

Step-by-step explanation:

Reflection: the conceptual operation of inverting a system or event with respect to a plane, each element being transferred perpendicularly through the plane to a point the same distance the other side of it.

- the leaf

Rotation: The movement of something around anouther or clockwise/counter-clockwise (this one makes no since as an exsplination)

- Phone and the tire

Translation: The movement of something from one place to anouther

- the checker piece.

Answer:

[tex]A=75.37\ m^2[/tex]

Step-by-step explanation:

Given that,

The base of a trapezoid, b = 21.6 m

Height of the trapezoid, h = 4.5 m

The tope of the trapezoid, a = 11.9 m

We need to find the area of a trapezoid. The formula for the area of a trapezoid can be given by :

[tex]A=\dfrac{1}{2}\times (sum\ of\ parallel\ sides)\times height[/tex]

Put all the values,

[tex]A=\dfrac{1}{2}\times (21.6+11.9)\times 4.5\\\\=75.37\ m^2[/tex]

Hence, the area of a trapezoid is equal to [tex]75.37\ m^2[/tex].

Answer:

6.3

Step-by-step explanation:

99(.07)=6.3

original price was 92.7 + 6.3 gives you 99

Answer:

[tex]8( 4 \sqrt{7} - \sqrt{18} ) = 8(4 \sqrt{7} - 3 \sqrt{2}) = 32 \sqrt{7} - 24 \sqrt{2} [/tex]

Answer:

the answer is

[tex]32 \sqrt{7} - 24 \sqrt{2} [/tex]

Answer:

south

Step-by-step explanation:

Answer:22

Step by step explanation:

add them all and the Complete angle a triangle can hold is 180

So we add all angles=158 hence 180-158=22

:)

Answer:

choice 1) ∠ABD = 22°

Step-by-step explanation:

∠ABD = 180° - 56° - 49° - 53° = 22°

Answer:

²¹⁄ₛ which is 21/s

Step-by-step explanation:

Answer:

C.

(3x + 2)(3x − 1)

Step-by-step explanation:

I would factor each answer choice with FOIL

A.

(3x − 1)(3x − 2)

9x^2 -6x -3x +2

9x^2 - 9x + 2

B.

(3x + 1)(3x − 2)

9x^2 -6x + 3x - 2

9x^2 -3x - 2

C.

(3x + 2)(3x − 1)

9x^2 -3x + 6x - 2

9x^2 +3x - 2

 D.

(9x − 2)(x + 1)

9x^2 + 9x - 2x -2

9x^2 +7x -2

Answer:

answer is C!

Step-by-step explanation:

m<QRS = 80 degrees.

Supplementary angles = a total of 180 degrees. So if angle ABC = 100, angle QRS would = 80 degrees.

Please mark as brainliest :D

Answer:

Solution given:

<ABC+<QRS=180°[supplementary]

<QRS=180°-100°

<QRS=80° is your answer

Answer:

[tex]Mother = 30\ years[/tex]

[tex]Son = 10\ years[/tex]

Step-by-step explanation:

Given

[tex]M = Mother[/tex]

[tex]S = Son[/tex]

From the first statement:

[tex]M = 3S[/tex]

From the second:

[tex]M - S = 20[/tex]

Required

Find M and S

We have:

[tex]M = 3S[/tex] and

[tex]M - S = 20[/tex]

Substitute [tex]M = 3S[/tex] in [tex]M - S = 20[/tex]

[tex]3S -S =20[/tex]

[tex]2S = 20[/tex]

Divide both sides by 2

[tex]S = 10[/tex]

Substitute [tex]S = 10[/tex] in [tex]M = 3S[/tex]

[tex]M = 3 * 10[/tex]

[tex]M = 3 0[/tex]

Hence;

[tex]Mother = 30\ years[/tex]

[tex]Son = 10\ years[/tex]

Answer:

The 4 in 153,458 has ten times more the value than the 4 in 192,946.

Step-by-step explanation:

400 and 40

400 ÷ 40 = 10

Answer:

Y=6

Step-by-step explanation:

Y=kx

k=3

Y=3x=3(2)=6

Answer:

Step-by-step explanation:

Parts + 3($40 labor)=183.30

parts + 120=183.30

parts=63.30 but it includes tax. To find costs of parts before tax you

63.30/1.055=60 so parts are $60

or to solve with one equation:

parts(1.055) + 3($40 labor) = 183.30

parts(1.055) + 120=183.30

parts(1.055)=63.30

Parts = 63.30/1.055

parts = 60

Answer:

-285

Explanation:

I did it on my calculator

Answer:

Step-by-step explanation:

CI ( 95 % )   means   α = 5 %    α  = 0,05   α /2 = 0,025

If we have a normal distribution and build a CI by symmetry such CI has as a middle point the mean in this case

CI 95 %  =  ( 520 ;  560 )

the mean is (520 + 560 ) / 2  

mean  = 540

Answer:

u = v - at

Step-by-step explanation:

v = u + at

v - at = u + at - at

v - at = u

u = v - at

Answer:

The expanded form is y=716x7

Step-by-step explanation:

Expanded form or expanded notation is a way of writing numbers to see the math value of individual digits. When numbers are separated into individual place values and decimal places they can also form a mathematical expression. 5,325 in expanded notation form is 5,000 + 300 + 20 + 5 = 5,325.

Answer:

[tex]x - 13[/tex]

x minus thirteen = x - 13.

Answer:

x-13

Step-by-step explanation:

Answer:

Which function is represented by this graph?

9

The last option is not even a function, because it ambiguously defines the endpoints.

The first option doesn't define the endpoint, because they are always excluded.

So, the correct option is the second one, because it includes the left endpoint and excludes the right one

Step-by-step explanation:

Plz mark me as brainlest please and follow me plz

Answer:

B. Regular

Step-by-step explanation:

Answer:

option B

Regular

hope it helps

Answer:

SA=528 cm²

Step-by-step explanation:

[tex]SA=2(\frac{1}{2} )(16)(6)\\\\+2(10)(12)\\\\+16(12)\\\\SA=528 cm^{2}[/tex]

hope it helps

have a great day!!

Answer:

has visto los diarios de vampiros?

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

D is linear because it increases the same amount each time

Answer:

If we know the area of the circle we can find the radius by using the formula for

Area = πr²

Answer:

The diameter is always double the radius. Hence, the formula is derived by dividing the diameter by 2.

Step-by-step explanation:

                  Radius Formulas

Radius in Terms of Diameter d ⁄ 2

Radius in Terms of Circumference C ⁄ 2π

Radius in Terms of Area √(A ⁄ π)

Answer:

One apple cost $0.52.

Step-by-step explanation:

$2.60/5 = $0.52

$0.52 * 5 = $2.60

Answer:

My best guess would be 19.5

Step-by-step explanation:

I asked go ogle

and

thats

all

I

could

find

hope

this

helps!