can somebody tell me if these answers are correct?​

Can Somebody Tell Me If These Answers Are Correct?

Answers

Answer 1
I think the a is right
I would handle b) like this: 8.50:12~0,7
1,55-0.7=$0,85

Related Questions

which algebraic expression represents the total area of ​​a cube each dimension of which is 1.5x​

Answers

Answer:

okkkkkkkķkkkkkkkkkkkkk

Answer:

Step 1: Remove parentheses by multiplying factors.

= (x * x) + (1 * x) + (2 * x) + (2 * 1)

Step 2: Combine like terms by adding coefficients.

(x * x) = x2

(1 * x) = 1x

(2* x) = 2x

Step 3: Combine the constants.

(2 * 1) = 2

Step 4: Therefore, Simplifying Algebraic Expression is solved as

= x2 + 3x + 2.

Step-by-step explanation:

A cube is 3- dimensional shape with 6 equal sides, 6 faces, and 6 vertices in geometry. ... In 3 – dimension, the cube's sides are; the length, width, and height.

Cuanto es 1/3 + 5/8 + 1/2

Answers

Answer:

35/24

Step-by-step explanation:

1/3 + 5/8 + 1/2

8/24 + 15/24 + 12/24

Hola!

Primero, debes asegurarte de que todas las funciones compartan el mismo denominador.

4(1/2)= 4/8

1/3 + 5/8 + 4/8

1/3 + 9/8

Ahora necesitamos encontrar un denominador común de 3 y 8.

El mínimo común múltiplo de 3 y 8 es 24.

8(1/3)= 8/24

3(9/8)= 27/24

8/24 + 27/24= 35/24

Entonces tu respuesta es 35/24!!

Lo siento si mi español no es bueno.

help help help help pls

Answers

Answer:

hope this helps

Step-by-step explanation:

a. 1/4 as a power of 2 = root 4 v/2

b.

Radium-226 mass decays to 1/4 of it mass every 6400 years

64gr ( 1/4) = 16gr ----→after 6400 years its mass is 16gr

now its current mass is 16gr

16gr (1/4) = 4gr -----> after another 6400 years its mass is 4gr

again, its current mass after 12800 years is 4gr

4gr (1/4) = 1gr ------> after another 6400 years its mass is 1gr

why 4600 3 times? = 4600+4600+4600 = 19200 years

the remaining mass after 19200 years is 1gr

Using the slope and the y-intercept, graph the line represented by the following equation. Then identify the figure
showing that graph.
2x-y+4=0

Answers

the answer is 2x-y=-4

(I’m having trouble with this question, it would be greatly appreciated if I could have some help, thank you)

What is the equation of a line that is parallel to – 2x + 3y = -6 and passes through the point (-2, 0)?

Answers

Answer:

y = 2/3x + 4/3

Step-by-step explanation:

you need to know the slope of the line -2x + 3y = -6 because parallel lines have the same slopes

let's put the equation in y=mx+b format (slope-intercept format)

-2x + 3y = -6

add 2x to each side to get:

3y = 2x - 6

divide each side by 3 to get:

y = 2/3x - 2

the equation now shows us the slope is 2/3 and the y-intercept is (0,-2)

now we use y=mx+b again and use the point (-2,0) and the m=2/3 to get the y-intercept ('b' value) of the equation that is parallel:

0 = 2/3(-2) + b

0 = -4/3 + b

b = 4/3

equation would be:

y = 2/3x + 4/3

HELP PLEASE 100 POINTS

Answers

Answer:

118 is the answer.

Step-by-step explanation:

All pentagons angles = 540

540 - 107 - 100 - 96 - 119 = 118

118 is the answer.

Hope it helped!

Kavitha

Answer:

The answer above is in fact correct

Step-by-step explanation:

107+100+96+119+118=540

(X-3)(X-12)

Expand and simplify

Answers

Answer:

x^2-15x+36

Step-by-step explanation:

x(x-12)-3(x-12)

x^2-12x-3x+36

x^2-15x+36

Answer: X^2 -15x + 36

Step-by-step explanation:

(X-3) (x-12)

Multiply each term in the first bracket by each term in the second bracket

X^2 -12x -3x + 36

Collect like terms

X^2 -15x + 36

Josh purchased a DVD for $10.80, before taxes. The price was after a 25% discount. What was the original price of the DVD?

Answers

Answer:

$

2.70

Step-by-step explanation:

can someone help mee pleaseee

Answers

f(x) = x^2 - 13x + 30

Step-by-step explanation:

A quadratic equation may be expressed as a product of the two binomials. The roots of the equations are 3 and 10, so the factors are (x-3) and (x-10).

f(x) = (x-3)(x-10)  

f(x) = x^2 - 13x + 30

F = 1/5 gh^2
solve for h

Answers

Answer:

First of all, let's multiply both sides by 5, clearing the denominators:

Then, as long as g is not zero, we can divide by g, and let's read right to left:

At this point, assuming F and g are either both positive or both negative, we can take the square root of both sides:

If h represent a quantity that is positive by it's nature (ie, the length of a segment) you can consider only the positive root, ie ignoring the plus or minus sign.

Which statement about the function f(x)=x2−x−20 is true?The expression x2−x−20 has factors (x−5) and (x+4), and f(x) has zeros at x=−5 and x=4.The expression x 2 − − x − − 20 has factors ( x − − 5 ) and ( x + 4 ) , and f ( x ) has zeros at x = − − 5 and x = 4 .The expression x2−x−20 has factors (x−5) and (x+4), and f(x) has zeros at x=−4 and x=5.The expression x 2 − − x − − 20 has factors ( x − − 5 ) and ( x + 4 ) , and f ( x ) has zeros at x = − − 4 and x = 5 .The expression x2−x−20 has factors (x−4) and (x+5), and f(x) has zeros at x=−5 and x=4.The expression x 2 − − x − − 20 has factors ( x − − 4 ) and ( x + 5 ) , and f ( x ) has zeros at x = − − 5 and x = 4 .The expression x2−x−20 has factors (x−4) and (x+5), and f(x) has zeros at x=−4 and x=5.The expression x 2 − − x − − 20 has factors ( x − − 4 ) and ( x + 5 ) , and f ( x ) has zeros at x = − − 4 and x = 5 .

Answers

Answer: its C

Step-by-step explanation:

HELP ME ASAP i could rly use it

Answers

Answer:

B-at the second line

Step-by-step explanation:

hope it can help you lovelots

#LEARN WITH BRAINLY

[tex]x^2 +6x +18 =0\\\\\implies x^2 + 2 \cdot 3 \cdot x + 3^2 -3^2 +18 =0\\\\\implies (x+3)^2 -9 +18 =0\\\\\implies (x+3)^2 +9 =0\\\\\implies (x+3)^2 =-9[/tex]

Which is not a way to write the answer to this problem?

Answers

Answer:

D) .

Step-by-step explanation:

913 ÷ 29 ≈ 31

What is a simple way to find 12 mod 7 + 12 mod 7 + 12 mod 7 + 12 mod 7?

Answers

12 ≡ 7 + 5 ≡ 5 (mod 7)

so

12 + 12 + 12 + 12 ≡ 4•12 ≡ 4•5 ≡ 20 ≡ 14 + 6 ≡ 6 (mod 7)

Richard sold cupcakes and cookies yesterday. Each cupcake sold for $1.75 and each cookie sold for $0.75. At the end of the day, Richard had sold $49.25 worth of cookies and cupcakes. If he sold 35 cupcakes and cookies combined, how many cupcakes were sold and how many cookies were sold?

Answers

Answer:

20 cupcakes

15 cookies

Step-by-step explanation:

20*$1.75=$35

15*$0.75=$14.25

$35+$14.25=$49.25

Answer:

23 cupcakes and 12 cookies

Step-by-step explanation:

I need help asap please!

Answers

It’s asking if AED is congruent to ABC. The answer would be Yes. Triangle AED is congruent to triangle ABC.

(23+7)×4
=
+7×4
=
×4
=

Answers

Answer:

Step-by-step explanation:

i showspeed

PEMDAS
Do the parentheses first (23+7) is 30
after that do 30 x 4 which gives you 120

Johnny ate seven apples, his bus comes around 3 in the morning, the neighbors dog took a dump on the ground weighing 2.67 kilograms. Whats the mass of the sun??​

Answers

Answer:

mass if the sun is 123

Step-by-step explanation:

I saw the dog take a dump

whats 2 + 2 ??!?!?!?!?!?!?!?​

Answers

Answer:

4 duhh... Ur kidding me??

Answer:

22 because 2+2

Step-by-step explanation:

if we put 2 near 2 it will be 22 so the answer is 22

Question involving derivatives and limits...

What is the limit as x approaches 2 of (3 f(x) - 15) / (x-2)... where f(2) is 5. The answer is not 0, I checked.
the derivative f'(2) is 1/8 in case that's needed

it can be either 3/8, , 3.545, or 3/2

Answers

Answer:

undefined

Step-by-step explanation:

i need answers thank you

Answers

The correct answer is A) y=-2x

Tim's phone service charges $24.25 plus an additional $0.18 for each text message sent per month. If Tim's phone bill was $28.75, which equation could be used to find how many text messages, x, Tim sent last month?

Answers

24.25+ .18 = 28.78
hope this helps

who my fav celeb who ever can guess it close to the name gets brainest

Answers

Answer:

john cena

Step-by-step explanation:

i have no idea lol

Examine the solution to the equation
-6(x + 5) + 3 = -2(x + 4) - 4x
-6x - 30 + 3 = -2x - 8 - 4x
-6x-27 = -6x - 8
Which statements accurately describe this equation?
Check all that apply.
This equation has one solution.
This equation has no solution.
This equation has infinitely many solutions.
Any input value for the variable will generate a true
equation
O Any input value for the variable will generate a false
equation.
-27 = -8

Answers

Answer:

option (2) and (5) is correct.

2) This equation has no solution.

5) Any input value for the variable will generate a false equation.

Step-by-step explanation:

Given a solution to the equation,

-6( x + 5) + 3 = -2( x + 4) - 4x

⇒  –6x – 30 + 3 = –2x – 8 – 4x

⇒ –6x – 27 = –6x – 8

⇒  –27 = – 8

Which is false statement as -27 is never equal to -8.

Thus, This equation has no solution.

Also, if we substitute any value of x , then also the equality never hold.

For example lets put x = 1 in  -6( x + 5) + 3 = -2( x + 4) - 4x , we get,

⇒ -6( 1 + 5) + 3 = -2( 1 + 4) - 4(1)

⇒ -6( 6) + 3 = -2(5) - 4

⇒ -36 + 3 = -10 - 4

⇒ -33 = -14

Still the value is false as -33 is never equal to -14.

Any input value for the variable will generate a false equation.

Thus, option (2) and (5) is correct.

The lines represented by the equations y + 3/2x = -6 and 3y – 2x = -24 are
parallel
neither parallel nor perpendicular
perpendicular
the same line

Answers

Answer:

Neither Parallel nor Perpendicular

Step-by-step explanation:

Convert 3y - 2x = -24 to slope - intercept form

3y - 2x = -24

3y = -24 + 2x

3y = 2x - 24

y = 2/3x - 8

They are neither parallel or perpendicular

Parallel lines have the same slope, but these are different

Perpendicular lines have the opposite inverse (negative reciprocal) slope, but these are just reciprocals

-Chetan K

what is the output when in the input is 7

Answers

Answer:

If the input is 7 then output is:-Tiny Small. Explaination: - 7 is smaller than 10 so output is tiny.

if (x-10) is a factor of f(x), which of the following must be true? (50 points)

A. Neither x= -10 or x=10 are roots of f(x)
B. f(-10)=0
C.f(10)=0
D. Both x=10 and x=-10 are roots of f(x)

Answers

Answer:

C, f(10)=0

Step-by-step explanation:

Just replace x-10 into f

After solving a series of mathematical problems using a complicated formula, Mark uses the same formula to solve another problem he could have solved using a much simpler formula. Mark's continued reliance on the complicated formula BEST illustrates:

Answers

Answer:

C. mental set

Step-by-step explanation:

A mental set generally refers to the brain's tendency to stick with the most familiar solution to a problem and stubbornly ignore alternatives. This tendency is likely driven by previous knowledge (the long-term mental set) or is a temporary by-product of procedural learning (the short-term mental set).

How do i find the measure of <2 in this equation?

Answers

Answer:

142

Step-by-step explanation:

It is equal to the one above it.

I hope this helps!!

How do i find the value of x in this equation?

Answers

Answer:

5x-10=60

5x=70

x=14

Hope This Helps!!!

Answer: 14

Step-by-step explanation:

Thr two angles are equal, so we can write:

5x-10 = 60

5x = 70

x = 14

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