simplify the expression
ab – 2ac + cb

Answers

Answer 1

Answer:2

Step-by-step explanation:


Related Questions

In the figure, PQ is parallel to RS. The length of RP is 5 cm; the length of PT is 30 cm; the length of QT is 60 cm. what is the length of SQ?

A. 10 cm
B. 2 cm
C. 6 cm
D. 20 cm

thank you!​

Answers

Answer:

10 cm

Step-by-step explanation:

because RT = 35 and RS = 75 so ST = 70

The length of SQ is 10 cm.

Option A is the correct answer.

We have,

Two similar triangles.

ΔTPQ and ΔTRS

So,

TR/TP = TS/TQ

TR = (TP +PR)

TS = (TQ + QS)

Substituting.

TR/TP = TS/TQ

(TP + PR)/TP = (TQ + QS)/TQ

(30 + 5) / 30 = (60 + QS) / 60

35/30 = (60 + QS) / 60

7/6 = (60 + QS) / 60

7 = (60 + QS) / 10

70 = 60 + QS

QS = 70 - 60

QS = 10

Thus,

The length of SQ is 10.

Learn more about triangles here:

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Solve by using the elimination method.
Sally spent $14.85 to buy 13 flowers. She bought lilies, which cost $1.25 each, and tulips, which cost $0.90 each. How many of each flower did Sally buy?
CAN SOMEONE HELP ME WITH THIS ONE PLEASE!!!!!!!

Answers

a = lilies

13 - a = tulips

We have: 1.25a + 0.90(13 - a) = 14.85

              => 1.25a + 11.7 -0.90a = 14.85

              => 0.35a                      = 14.85 - 11.7 = 3.15

              => a                              = 3.15 ÷ 0.35 = 9

=> She bought 9 lilies and 4 tulips

             

6(p+6)- (p-6) I need help anyone pls

Answers

Answer:

5p + 42

Step-by-step explanation:

Step 1: Write expression

6(p + 6) - (p - 6)

Step 2: Distribute

6p + 36 - p + 6

Step 3: Combine like terms

5p + 42

Answer. 5p+ 30
Explanation. 6(p+6) - (p-6)
We must expand.
6 times p is 6p+ 6 times 6 which is 36.
You now have:
6p+ 36 - p- 6
Combine like terms: 6p- p + 36- 6 Your final answer is:
5p+ 30
Hope this helped let me know if it is correct so others can use it.
Good luck :)

60 people attend a game night. Everyone chooses to play chess, a two-player game, or cribbage, a four-player game. All 60 people are playing either chess or cribbage.

There are 3 more games of cribbage being played than games of chess being played. How many of each game are being played

Answers

Answer: 8 chess matches and 11 cribbage matches.

Step-by-step explanation:

60 people, 4 people play a match of cribbage, so if theres 3 more  matched than chess we can subtract that from the total 60 to get the answer. 3x4=12 60-12=48, 2 people per chess game and 4 people per cribbage game add them 6, 48 divided by 6 since its an even amount now, 48/6=8 add 8 matched to the remaining 3 for the cribbage.

8 chess games are being played while 11 cribbage games are being played.

Let x represent the number of chess games and y represent the number of cribbage games.

Since there are 60 people, chess is a two-player game and cribbage is a four-player game, hence:

2x + 4y = 60  (1)

There are 3 more games of cribbage than games of chess, hence:

y = x + 3

-x + y = 3    (2)

Solving equations 1 and 2 simultaneously gives:

x = 8, y = 11

Therefore 8 chess games are being played while 11 cribbage games are being played.

Find out more at: https://brainly.com/question/21105092

What is the measure of C?

Answers

Answer:C

Step-by-step explanation:

The angles must equal 180 degrees.

Answer:

I think the answer is b it looks like a equilateral triangle which means all sides are equal.

The Gonzalez family went to the carnival. Parking costs $12.00. The price for each ride cost $4 each. Their total cost was $52.
write equation and then solve

Answers

Answer:

12+4x=52

x=10

Step-by-step explanation:

the amount of money for each ride times x amount of rides is the 4x part. then -12 from the left and from 52. then divide 40÷4 equalling 10

1
What is the measure of angle x?
64°
X
45
109
64
180
71

Answers

Answer:

A

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

x is an exterior angle of the triangle, thus

x = 64° + 45° = 109° → A

Answer:

A

Step-by-step explanation:

64+45=109

180-109=71

180-71=109 *

*This step is only if you want to check your work!

5 less than a number is equivalent to 1 more than three times the number. the number is​

Answers

Answer:

x = -1

Step-by-step explanation:

5 less than a number is equivalent to 1 more than three times the number

number = x

x - 5 = 3x + 1

now im going to get the numbers and variable on different sides

x - 5 + 5 = x

3x + 1 - 3x = 1

x + 3x = 4x

1 - 5 = -4

4x = -4

lastly im going to divide each side by 4

4x / 4 = x

-4 / 4 = -1

x = -1

Can someone pleasee help I’ll mark brainlist!!!

Answers

Answer:4/C

Step-by-step explanation:

Answer:

2.4

It is the 1st one

Step-by-step explanation:

There are 60 min in 1 hour so divide 60/20min = 3

Then multiply 4/5*3 = 2.4

HOpe this helps

Use the graph of the lines to determine if the two lines
are parallel.
units and right
Line MN was translated down
units to create line M'N'.
The slope of MN
The slope of M'N'

Answers

Answer:

(in order):  4, 8, -2, -2

Step-by-step explanation:

The slope of MN = -1.

The slope of M.N. = -1.

What is a slope?

The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line.

To find the slope;

m =  (y₂- y₁) / (x₂ - x₁)

Given information:

The two lines MN and M'N' are parallel.

Transformation rule:

Line MN was translated down to 4 units and right to 6 units to create line M'N'.

And line MN passes through two points (-2, 0) and (-6, 8).

Therefore, the slope of line MN,

= (8- 0)/(-6-2)

= -1

Since lines MN and M'N' are parallel, they have the same slope.

Therefore, the slope of M'N' is also -1.

To learn more about the slope;

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Describe the transformation for the equaton below:
f(x) = 12 – 4 + 3

Answers

Answer:

f(x)=11

Step-by-step explanation:

f(x)=12-4+3

f(x)=8+3

f(x)=11

what is the awnser i need to know and brainleist

Answers

Answer:

The answer would be D

Step-by-step explanation:

2.10 would be a little after 2.

Hoped this helped :)

Answer:

the answer is

Step-by-step explanation:

D

Triangle FGH is graphed on the coordinate plane below.

On a coordinate plane, triangle F G H has points (negative 6, negative 8), (negative 2, negative 3), (negative 4, negative 2).

The figure is rotated 180° using the origin as the center of rotation. How do the coordinates of the vertices of the preimage compare to the coordinates of the vertices of the image?
(x, y) right-arrow (y, x)
(x, y) right-arrow (negative y, negative x)
(x, y) right-arrow (negative x, negative y)
(x, y) right-arrow (x, negative y)

Answers

Answer:

(x, y) right-arrow (negative x, negative y)(x, y) → (-x, -y)

Step-by-step explanation:

Let us revise the rotation about the origin

If point (x, y) rotated about the origin by angle 90° counterclockwise (or 270° clockwise), then its image is (-y, x) . The rule is (x, y) → (-y, x)If point (x, y) rotated about the origin by angle 180° counterclockwise ( or 180° clockwise), then its image is (-x, -y) . The rule is (x, y) → (-x, -y)If point (x, y) rotated about the origin by angle 270° counterclockwise (90° clockwise), then its image is (y, -x) . The rule is (x, y) → (y, -x)

Let us solve the question

∵ The vertices of triangle FGH are (-6, -8), (-2, -3), (-4, -2)

∵ The figure is rotated 180° using the origin as the center of rotation

→ By using the 2nd rule above

∴ The vertices of its image are (6, 8), (2, 3), (4, 2)

∴ The rule is (x, y) → (-x, -y)

The coordinates of the vertices of the preimage compare to the coordinates of the vertices of the image do (x, y) right-arrow (negative x, negative y)(x, y) → (-x, -y)

Answer:

B. they over explaining

Step-by-step explanation:

     

Is Mabel correct?

A. Mabel is correct.
B. No, she made a mistake in step 2
C. No, she made a mistake in step 3
D. No, she made a mistake in step 4

Answers

Let's solve your equation step-by-step.
(
4
x

3
)
(
(
x

2
)
2
)
=
4
x
3

19
x
2
+
4
x

12
4
x
3

19
x
2
+
28
x

12
=
4
x
3

19
x
2
+
4
x

12
Step 1: Subtract 4x^3 from both sides.
4
x
3

19
x
2
+
28
x

12

4
x
3
=
4
x
3

19
x
2
+
4
x

12

4
x
3

19
x
2
+
28
x

12
=

19
x
2
+
4
x

12
Step 2: Add 19x^2 to both sides.

19
x
2
+
28
x

12
+
19
x
2
=

19
x
2
+
4
x

12
+
19
x
2
28
x

12
=
4
x

12
Step 3: Subtract 4x from both sides.
28
x

12

4
x
=
4
x

12

4
x
24
x

12
=

12
Step 4: Add 12 to both sides.
24
x

12
+
12
=

12
+
12
24
x
=
0
Step 5: Divide both sides by 24.
24
x
24
=
0
24
x
=
0
Answer:
x
=
0

Answer:

D. No, she made a mistake in step 4

Step-by-step explanation:

Express the fraction 11/30 in decmail form

Answers

Answer:

.36666667

Step-by-step explanation:

0.3667
hope this helped

A parent pushes a single child on a swing. Suppose two children now sit on the same swing, and the parent pushes with the same force.

According to Newton's Second Law of Motion, what is the result?


A. mass decreases, acceleration increases

B. mass decreases, acceleration decreases

C. mass increases, acceleration increases

D. mass increases, acceleration decreases

Answers

the answer will be D.

Answer:

D

Step-by-step explanation:

According to Newton's second law of motion, mass is inversely proportional to acceleration. As mass increases, acceleration decreases and the opposite.

Need help ASAP, Tysm to anyone who responds!

Answers

Answer:

320

Step-by-step explanation:

2(-7)²-8(-7)(4)-√4=

98-(-224)-2=

98+224-2=

322-2=

320

Sonya works on a cruise ship and sleeps in a cabin that is 6 feet below sea level. The main deck is 35 feet above Sonya's cabin. How far above sea level is the main deck? add unit of measure!*

Answers

Answer: 29 ft above sea level

Step-by-step explanation:

if she is 6 feet under that could be considered -6, the main deck is above sea level so +35, so it would be 35-6=29 ft

Are tools ‘required’ to make accurate and precise measurements?

Answers

Yes because it will give you an exact measurement at least for it to be precise.

What is 24.9% to a fraction in simplest form?​

Answers

Answer:

The answer is 249/1000

Step-by-step explanation:

Written as a simplified polynomial in standard form, what is the result when
(3x – 2)2 is subtracted from 4x?

Answers

Answer:

Yes, will be

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

Because the 4x it doesn't t affect the 6x and the 6x is

[tex]6 \times x[/tex]

So the result will be 4x

Answer:

-9x^2 + 16x - 4

Step-by-step explanation:

Choose the correct equation to solve the problem: Five friends equally split a restaurant bill that comes to $32.50. How much does each person pay?

x/5 = 32.50
5x = 32.50
x + 5 = 32.50
x - 5 = 32.50

Answers

5x = 32.50. and each of them pay $6.50

if you ride your bike around the block, returning to the exact point where you started, your displacement is _____m?

help please <3

Answers

Answer:

tbh idek

Step-by-step explanation:

sorryyyyyyyyyy

Karen cut away 49 centimeters of rope. Before that, she had 807.49 centimeters of rope. How much rope does Karen have left?

Answers

Answer:

758.49 cm

Step-by-step explanation:

1. Subtract

8 0 7 . 4 9

  4 9 . 0 0

7 5 8 . 4  9

Need help pls I dot understand

Answers

The answer is B I believe

máximo comun divisor de 20 12 36​

Answers

Answer:

El procedimiento para hallar el MCD de 12, 20, 36:Descomponer los números en su factores primos

12 2 6 2 3 3 1

   20 2 10 2 5 5 1

 36 2 18 2 9 3 3 31

 

Factores primos de 12 = 22 . 3

Factores primos de 20 = 22 . 5

Factores primos de 36 = 22.32

MCD = 21 = 2

Step-by-step explanation:

if the area of the rectangle is given by the polynomial 2x-7-15 what is the dimension of the rectangle in terms of x​

Answers

Answer:

2-7x

Step-by-step explanation:

hope i helped gl <3

HELP IMMEDIATELY PLEASE, WILL GIVE BRAINLIEST!!!

Answers

Answer:

The slope is -1/3 I think.

Answer:

slope = 1/3

Step-by-step explanation:

We can look at the points where the graph exactly intersects a point. Those points are: (10, 50), (40, 60), and (70, 70). The slope is the difference of y divided by the difference of x. You can subtract any two points. Your final answer would be (70-60)/(70-40) = 10/30 = 1/3

{(2,-1),(-2,4),(2,5),(3,6)}
What’s the domain and range?

Answers

Answer:

Domain(x): -2,2,3

Range(y): -1,4,5,6

(I put them in order numerically)

Step-by-step explanation:

The Domain is all the x values of the points given. It's always the first number of a point.

The range is the y values, it's always the second number given in a ordered pair!

Hope this helps! :)

pic below...............................

Answers

.    。    •   ゚  。   .

  .      .     。   。 .  

.   。      ඞ 。 .    •     •

 ゚   Red was not An Impostor.  。 .

 '    1 Impostor remains     。

 ゚   .   . ,    .  .

can red have brainliest?

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