If C=s−5 C=s−5 and D=s−8,D=s−8, find an expression that equals C+2D C+2D in standard form.

Answers

Answer 1

Answer:

3s-21

Step-by-step explanation:

C+2D; C=s-5, D=s-8

s-5+2(s-8)

s-5+2s-16

3s-21


Related Questions

Help me please :)........

Answers

Answer:

5.08 i think

Step-by-step explanation:

Answer:

(2.2 +2 +8.9 +4.1 +8.2)/5

25.4/5

5.08

Mags and Vector are playing a board game. They use a spinner to determine if they should move forward or backward. They roll a number cube with the numbers 1-6 on it to determine how many Mags and Vector are playing a board game. They use a spinner to determine if they should move forward or backward. They roll a number cube with the numbers 1-6 on it to determine how many spaces to move. What is the probability of moving backward an even number of spaces?

Answers- 1/6 1/4 1/2 1/3

Answers

Answer: 1/4

Step-by-step explanation:

Please help ASAP


Simplify [tex]\sqrt{.64x^2}[/tex] if [tex]x\leq 0[/tex]

Answers

Answer: 4/5x

Explanation: simply the expression, then convert it and calculate your answer.

If m represents the number of minutes of exercise, and c represents the number of calories burned during exercise, which of the variables m and c is dependent and which is independent?

Answers

m is independent and c is dependent

If point B is at 0, then what are the values of points A and C?

Answers

Answer:

Since the line is not scaled, then how do we know for sure.  But, we do know that point A is the opposite of point C.   For example, if C = 150, then A = -150

Step-by-step explanation:

Since the line is not scaled, then how do we know for sure.  But, we do know that point A is the opposite of point C.   For example, if C = 150, then A = -150

Line l has equation y=-3. Find the distance between l and the point E(-7,0).
Round to the nearest tenth.

Answers

Answer:

The given line has slope m=1

the perpendicular line MUST have slope -1

Since it MUST eat (-3,2), the intercept formula says

B = y - mx = 2 - (-1)(-3)  = 2 - 3 = -1

so the equation of the perpendicular line that eats point W is

y = -x -1

The lines y=x+3 and it's perpendicular y = -x-1 intersect at

  y = x+3 = -x-1

   2x+3 = -1

  2x = -4

  x = -2

THe intersection point is

(-2,1)

Finally by distance formula,

The distance between (-3,2) and (-2,1) is

 sqrt ( (-3 - -2)^2 + ( 2-1)^2)

= sqrt( (-3 + 2)^2 + (2-1)^2)

 = sqrt( (-1)^2 + 1^2)

  = sqrt ( 1+1)

 = sqrt(2)

Step-by-step explanation:

The distance between line l and the point E (-7, 0) will be;

D = 3.

What is distance between point and line?

The distance between a line ax + by + c = 0 and point (p, q) will be;

D = |ap + bq + c|/√a² + b²

Given that;

Equation of line;

y = -3

And, Point = E (- 7, 0)

Hence, The distance between a line and point is calculated as;

Equation of line;

y = -3

y + 3 = 0

Compare with ax + by + c = 0, we get;

a = 0, b = 1 and c = 3

And, Point = (p, q) = (-7, 0)

Thus, The distance between a line and point is;

D = |0 + 0 + 3|/√0+1

D = 3

So, The distance between line l and the point E (-7, 0) will be;

D = 3.

Learn more about the equation of line visit:

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The ratio of dogs to cats at a pet store is 11: 4. If there are 90 total pets (dogs and cats), how many cats are there?​

Answers

Answer:

number of cats

[tex]90 \times \frac{4}{15} \\ 24cats[/tex]

Find the smallest whole number that if divided by 8 leaves a remainder of 7 and if divided by 7 leaves a remainder of 6.

Answers

Answer:

503

Step-by-step explanation:

503/7= quotient(71), remainder(6)

503/8=quotient(62), remainder(7)

Write and solve an equation to answer the question. 9 is 12% of what number?

Answers

12% = 12/100 = 0,12

0,12 x x = 9
x = 9/0.12
x = 75

9 is 12% of 75

You are helping your family run a store and decide to mark up the items you are selling for a profit by 35%. An item you want to sell in the store cost $4.38 from the warehouse. If you apply the 35% mark up, what will be the sale price of the item in your store. (Round to the nearest cent)

Answers

Answer: $6

Step-by-step explanation:

Cost of item = $4.38

Mark up percent = 35%

Sakes price will be the addition of the cost price and the mark up price. This will be;

= $4.38 + (35% × $4.38)

= $4.38 + (0.35 × $4.38)

= $4.38 + $1.533

= $5.913

= $6 approximately

how do you do this???

Answers

Answer:

By solving x and y

Step-by-step explanation:

Answer:

x ≈ 39.2 , y ≈ 34.3

Step-by-step explanation:

Using the sine and tangent ratios in the right triangle

sin29° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{19}{x}[/tex] ( multiply both sides by x )

x × sin29° = 19 ( divide both sides by sin29° )

x = [tex]\frac{19}{sin29}[/tex] ≈ 39.2 ( to 1 dec. place )

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

tan29° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{AC}{BC}[/tex] = [tex]\frac{19}{y}[/tex] ( multiply both sides by y )

y × tan29° = 19 ( divide both sides by tan29° )

y = [tex]\frac{19}{tan29}[/tex] ≈ 34.3 ( to 1 dec. place )

Find the length of the third side if necessary round to the nearest tenth 20 12

Answers

Answer:

58

Step-by-step explanation:

20+12= 32

it is a 90 degree angle so

90-32=58

58 is closest to 60

Answer:

16

Step-by-step explanation:

I will mark Brainliest

Answers

2.5 IS THE ANSWERRRRRRR

In ΔWXY, w = 4.8 cm, x = 1.5 cm and ∠Y=52°. Find the area of ΔWXY, to the nearest 10th of a square centimeter.

Answers

Answer:

Area = 3.0 square cm

Step-by-step explanation:

By cosine formula,

WX² = WY² + XY² - 2(WY)(XY)cos(∠W)

WX² = (1.5)² + (4.8)² - 2(1.5)(4.8)cos(52°)

WX² = 2.25 + 23.04 - 8.866

WX = √(16.424)

WX = 4.05 cm

Since, area of a triangle with known sides = [tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]

Here, s = [tex]\frac{a+b+c}{2}[/tex]

And a, b, c are the sides of the triangle

By this formula,

s = [tex]\frac{1.5+4.8+4.05}{2}[/tex]

s = 5.2

Therefore, area of the triangle XYZ = [tex]\sqrt{5.2(5.2-1.5)(5.2-4.8)(5.2-4.05)}[/tex]

= [tex]\sqrt{5.2(3.7)(0.4)(1.15)}[/tex]

= [tex]\sqrt{8.85}[/tex]

= 2.97

≈ 3.0 square cm

A leaky valve on the water meter overcharges Ahmed for one Liter of water for every 2 months. The overcharged amount w varies directly with time t . (a) Find the equation that models the variation . (b) Solve the equation to find the number of months it will take for Ahmed to be overcharged for 10 liters of water leaked. Show all your steps

Answers

Answer:

20 months

Step-by-step explanation:

A leaky valve on the water meter overcharges Ahmed for one Liter of water for every [tex]2[/tex] months. The overcharged amount [tex]w[/tex] varies directly with time [tex]t[/tex].

(a)

As the overcharged amount [tex]w[/tex] varies directly with time [tex]t[/tex],

[tex]w=kt[/tex]

Here, [tex]k[/tex] is a constant.

A leaky valve on the water meter overcharges Ahmed for one Liter of water for every [tex]2[/tex] months.

Put [tex]w=1\,,\,t=2[/tex]

[tex]1=2k\\k=\frac{1}{2}[/tex]

So,

[tex]w=\frac{t}{2}[/tex]

(b)

To find the number of months it will take for Ahmed to be overcharged for 10 liters of water leaked, put [tex]w=10[/tex] in [tex]w=\frac{t}{2}[/tex]

[tex]10=\frac{t}{2}\\\\t=10(2)\\[/tex]

[tex]t=20[/tex] months

Representa en la recta numérica los siguientes grupos de números enteros e identifica entre ellos cual es el menor y el mayor. a). (-8, -6, -7, 3) b). (-9, -5, 2, 5,9) c). (-1, -8, - 5, -3, 1) d). (12,-5,0,-1,-10)

Answers

Answer:

sorry but i don't understand.

Step-by-step explanation:

Pleaseeee I beg you. Help me!

Answers

Answer:

3X+8 IS THE ANSWER FOR EQUATION

26 IS 2ND ANSWER

Please mark as brainliest

Have a great day, be safe and healthy

Thank u  

XD

The solution of x is 6


Your friend says that V169 is 13. Another
friend says that V169 is –13. Who is correct?
Explain.

Answers

The first friend your very welcome

Answer:

first one is correct

Step-by-step explanation:

Please help i cant fail

Answers

Answer:

3a+13

Step-by-step explanation:

Add 5 and 8 together to get 13

Which rectangular prism has a surface area of 62 square units? [Note: Art is not drawn to scale.]

A rectangular prism with a length of 5, width of 3, and height of 1.

A rectangular prism with a length of 2, width of 2, and height of 6.

A rectangular prism with a length of 5, width of 3, and height of 2.

A rectangular prism with a length of 6, width of 2, and height of 4.

Answers



A rectangular prism with a length of 6, width of 2, and height of 4.

Answer:

The answer is C

Step-by-step explanation:

Which expression could represent a rational number?
A. -b
B. a + b
C. ab
D. b^2

Answers

The answer for the following question is A) -b

Rational number is a number that can be written in the form of p/q. The correct expression that can represent a rational number is -b.

What is a rational number?

A rational number is a number that can be written in the form of p/q, where p and q are integers and the value of q≠0.

In order to find the expression that can represent a rational number, we need to find a number that can be represented in the form of p/q, Therefore, the correct option is -b.

Hence, the correct expression that can represent a rational number is -b.

Learn more about Rational Numbers:

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What is the quotient? X+5√3x^2+4x+5 A.) 3x^2-11+60/x+5 B.) 3x-11+60/x+5 C.) 3x^2-11-50/x+5 D.) 3x-11-50/x+5 Please hurry this is timed!

Answers

Answer:

[tex]3x - 11[/tex]

Step-by-step explanation:

Given

[tex]\frac{3x^2 + 4x + 5}{x + 5}[/tex]

Required

Determine the quotient

First, we check if the divisor (x + 5) can divide the dividend (3x^2 + 4x + 5) without having a reminder

Equate the denominator to 0.

[tex]x + 5 = 0[/tex]

[tex]x = -5[/tex]

Substitute -5 for x in the numerator

[tex]3x^2 + 4x + 5 = 3*(-5)^2 + 4 * (-5) + 5[/tex]

[tex]3x^2 + 4x + 5 = 60[/tex]

This means that it has a reminder of 60

To get the quotient, we subtract 60 from the numerator and evaluate

[tex]\frac{3x^2 + 4x + 5}{x + 5}[/tex] becomes

[tex]\frac{3x^2 + 4x + 5 - 60}{x + 5}[/tex]

[tex]\frac{3x^2 + 4x - 55}{x + 5}[/tex]

Expand the numerator

[tex]\frac{3x^2 + 15x - 11x - 55}{x + 5}[/tex]

Factorize:

[tex]\frac{3x(x + 5) - 11(x + 5)}{x + 5}[/tex]

Factor out x + 5

[tex]\frac{(3x- 11)(x + 5)}{x + 5}[/tex]

Cancel out x + 5

[tex]3x - 11[/tex]

Hence, the quotient is [tex]3x - 11[/tex]

I hate how i have to write things here

Answers

Answer: Question 1 is m=-7/4

Question 2 is -4 as the y axis where it intercepts and the other coordinate is (3,-2)

Step-by-step explanation:

Please Help
Pat and Rick are sakes associates at a store. Pat makes 2 sales for every 3 customers that he helps. Rick makes 3 sales for every 4 customers that he helps. Does Pat or Rick have a better ratio of sales to customers?

Answers

i need an answer to this too

What is an equation of the line that passes through the points (-6, 1) and (-8, 4)?

Answers

-5 and -4 is -9 that’s correct

helpppppp this hard for me :/

Answers

i believe it’s D because congruent means equal so you can equate both of 5x+24=9x-17 and find the value of C which is 10.25

Francine wants to find the total of Ask Your Teacher cup of blueberries and Ask Your Teacher cup of raspberries. What is the least common denominator of the fractions? 10

Answers

Answer:

24

Step-by-step explanation:

Here is the full question used in answering this question :

Francine wants to find a total of 2/3 cup of blueberries and 5/8 cup of raspberries what is the least common denominator of the fractions

Least common denominator of fractions is the smallest number that can divide both the denominator of 2/3 and the denominator of 5/8. The denominators here are 3 and 8

The least common denominator = 3 x 8 = 24

WILL GIVE BRAINLYEST PLEASE HELP !

Answers

Answer:

d

Step-by-step explanation:


???? 0.243 + 70.3 =

Answers

Answer:

70.243

Step-by-step explanation:

hope this helps you!!

Answer:

0.243 + 70.3 = 70.543

I hope This Helps^^

please help
Find the surface area of the composite solid.

Answers

Surface Area: 140 ft

You find the areas of the sides and bottom, base x height, and the areas of the triangles, 1/2 base x height, then add them all together
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