Renan found the sum (4.2x + 3) + (5.7x – 2) + (5 – 2.6x), as shown. 4.2x + 3 + 5.7x – 2 + 5 – 2.6x 4.2x + 5.7x + 2.6x + 3 – 2 + 5 (4.2 + 5.7 + 2.6)x + 3 – 2 + 5 12.5x + 6 What was Renan's error in adding the expressions? He used the commutative property incorrectly. He used the distributive property incorrectly. He added incorrectly. He multiplied incorrectly.

Answer:

A.

Step-by-step explanation:

4x-(-5x)=9x

-6y-2y=-8y

13-5=8

So, the answer is 9x+8y=8

(hope this helps!)

You can fold your paper on one, two, or more folds, but only on the folds we've already made. You can't make any new folds.

Answer: the graph is decreasing everywhere

Answer:

√13

Step-by-step explanation:

Find the length AC and BC

AC=5-2

=3 (AC found in the y-axis so we substract the y values)

BC=4-2

=2 (BC found in the x-axis so we substract the x values)

then by using pythagoras we can find AB

AB^2=BC^2+AC^2

Answer:

4 i think

Step-by-step explanation:

The area of the circular opening is  201.14 sq.inches.

Area is the space occupied by any given surface in a two dimensional plane.

A circular duct has a diameter of 16 inches

Area of the circular opening is given by

πd²/4

d is the diameter of the circle

= (22/7) * (16)²/4

= 201.14 sq.inches

Therefore the area of the circular opening is  201.14 sq.inches.

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Answer:

x² + 4x + 9

Step-by-step explanation:

This is just adding like terms (Adding x²'s to each other, adding x's to each other, etc.)

3x² - 2x² = x²

-x + 5x = 4x

7 + 2 = 9

So all together its x² + 4x + 9.

Answer:

{-3, 3, 5, 9}

Step-by-step explanation:

The domain is simply the inputs (x) used in the function.

Answer:

{-3,3,5,9} this is answer

Answer:

x=12

Step-by-step explanation:

8x=96

8x/8=96/8

x=12

Hope this helps!

Answer:

The area is 285.1 mi^2

Step-by-step explanation:

Here, we want to find the area of the larger sector

Mathematically, that would be;

theta/360 * pi * r^2

= 270/360 * 3.142 * 11^2

= 285.1 mi^2

Question # 7

Given two points

Determining the slope of the line passing through the points (0, 0) and (3, 3)

(x₁, y₁) = (0, 0)

(x₂, y₂) = (3, 3)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

                =  [3 - 0] / [3 - 0]

                = 3 / 3  

                = 1

Thus, the slope of the line = m = 1

Question # 8

Given two points

Determining the slope of the line passing through the points (1, 3) and (5, 5)

(x₁, y₁) = (1, 3)

(x₂, y₂) = (5, 5)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

                =  [5 - 3] / [5 - 1]

                = 2/4  

                = 1/2

Thus, the slope of the line = m = 1/2

Question # 9

Given two points

Determining the slope of the line passing through the points (4, 4) and (5, 3)

(x₁, y₁) = (4, 4)

(x₂, y₂) = (5, 3)

Using the formula

Slope = m =  [y₂ - y₁] /  [x₂ - x₁]

                =  [3 - 4] / [5 - 4]

                = -1 / 1  

                = -1

Thus, the slope of the line = m = -1

Answer:

87

Step-by-step explanation:

1x0=97x1x0xratio=87

Answer: 3

Step-by-step explanation: [ 3.6 ] represents the greatest integer function [ x ]

If x is an integer use that integer

If x is not an integer use the next smaller integer

[ 3.6 ] is not an integer, hence

[ 3.6 ] = 3

Answer:

All factors of 32 are 1, 2, 4, 8, 16, and 32. Therefore, these are the common factors of 32.

Step-by-step explanation:

Answer:

2 x 2 x 2 x 2 x 2

Step-by-step explanation:

Prime factors are factors that can only factor down to itself and 1.

For example, prime factors can include, but are not limited too:

1, 2, 3, 5, 7, 11, etc.

In this case, you are trying to factor 32.

First, divide 2 (a prime factor) from 32:

32/2 = 16

Next, divide another 2 from 16:

16/2 = 8

Then, you can divide another 2:

8/2 = 4

And finally, another 2:

4/2 = 2

In this case, your prime factorization of 32 is:

32 = 2 x 2 x 2 x 2 x 2, or [tex]2^{5}[/tex]

~

Answer:

Yes.

Pls mark brainliest. Thanks.

Answer:

should be 6to make is one so you can multiply it by 1 to get the same number

Step-by-step explanation:

Answer:

D = 8

Step-by-step explanation:

distribute

2 = 2d - 14

add 14 to both side

16 = 2d

divide both sides by 2

8 = d

d = 8

can I get brainliest ?

Answer:

300 would be

Step-by-step explanation:

Answer:

No, around 300 would be reasonable.

Step-by-step explanation:

Answer: the answer is y=1/2x+3

Step-by-step explanation:

Hopes this helps !! Message me if explanation is needed !!!

The equation of the line which passes through (2,4) with a slope of 1/2​ is  [tex]y = \frac{x}{2} +3[/tex].

Y = mx + b is the slope-intercept form of the equation of a straight line. In the equation y = mx + b, m is the slope of the line and b is the intercept. X and y represent the distance of the line from x-axis and y-axis, respectively. The value of b is equal to y when x = 0, and m shows how steep the line is.

Given

Slope m = 1/2

Point (x, y) = (2, 4)

Equation of line which passes through a point (x, y) with a slope of m is

y = mx + b

Substitute the values

⇒ [tex]4=\frac{1}{2}(2)+b[/tex]

⇒ 4 = 1 + b

⇒ b = 4 - 1

⇒ b = 3

Substitute m = 1/2 and b = 3 in equation (1)

[tex]y = \frac{1}{2}(x) +3[/tex]

⇒ [tex]y = \frac{x}{2} +3[/tex]

Hence, the equation of the line which passes through (2,4) with a slope of 1/2​ is  [tex]y = \frac{x}{2} +3[/tex].

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Answer:

1. Angles: <F=<J, <H=<H, <G=<K

Sides: FG/JK, GH/KH, FH/JH

2. 1/4 3. 5/2 4. X=12 5. 122.5 units 6. x=8; y=35 7. X=3 8. x=25 9. x=12 10. x=15 11. X=14 12. x=13

Step-by-step explanation:

2. 4/8 =1/4

3. 10/4=5/2

4. 5x=60(x=12)

5. 7(35)/2: 245/2= 122.5 units

6. x/28= 6/21: 21x=168: x=8

7. 49/14= 9(x+1)/(x+5): 49(x+5)=9(x+1)+14: 49x+245=126x+14: 245-14=126x-49x: 231=77x: x=3

8. 52/91=x+3/2x1: 52(2x-1)= 91(x+3): 104x-52=91x+273: 13x=325: x=25

9. 5x-3/3x+2= 60/40: 60(3x+2)= 40(5x-3): 200x-120=180x+120: 200=180x+120: 20x=240: x=12

10. 168x-280=160x-60: 8x-120: x=15

11. 12/x+1= 32/3x-2: 12(3x-2)= 32(x+1): 36x-24=32x+32: 4x=56: x=14

12. x+4/2x-7= 51/57: 57(x+4)= 51(2x-7): 57x +228=102x-357: -45x = -585: x=13

Answer:

30 miles.

Step-by-step explanation:

She drove 50/5 = 10 miles in January.

Therefore she drove 3*10 = 30 miles in February.

Answer:

Ohhh fancy Smart im not that smart LOL

Step-by-step explanation:

Have A Wonderful Day !!

Answer:

[tex]9[/tex] right-handed gloves and [tex]3[/tex] left-handed gloves were sold.

Step-by-step explanation:

Given:  In one month, [tex]12[/tex] gloves were sold for a total revenue of [tex]\$561[/tex].

            right-handed gloves cost [tex]\$45[/tex] and left-handed gloves cost [tex]\$52[/tex].

To find: How much of each type of gloves did they sell?

Solution: Let they sell [tex]x[/tex]  right-handed gloves, and [tex]y[/tex] left-handed gloves.

Now, cost of each right-handed gloves [tex]=\$45[/tex]

cost of each left-handed gloves [tex]=\$52[/tex]

Total revenue [tex]=\$561[/tex]

So, we get

[tex]45x+52y=561\:\:\:...(i)[/tex]

Also,  in a month [tex]12[/tex] gloves were sold.

So, we get

[tex]x+y=12\:\:\:...(ii)[/tex]

Now, from [tex](ii)[/tex] we get, [tex]x=12-y[/tex].

Putting [tex]x=12-y[/tex] in equation [tex](i)[/tex], we get

[tex]45(12-y)+52y=561[/tex]

[tex]\implies 540-45y+52y=561[/tex]

[tex]\implies7y=561-540[/tex]

[tex]\implies7y=21[/tex]

[tex]\implies y=\frac{21}{7}[/tex]

[tex]\implies y=3[/tex]

Now, putting [tex]y=3[/tex] in equation [tex](ii)[/tex], we get

[tex]x+3=12[/tex]

[tex]\implies x=12-3[/tex]

[tex]\implies x=9[/tex]

Hence, [tex]9[/tex] right-handed gloves and [tex]3[/tex] left-handed gloves were sold.

Answer: The answer will most likely be 1

Answer:

6677766666

Step-by-step explanation:

5tettrhfhyyf was a good relationship is a different person and then use it for the same thing to do in the same thing as possible but you should not be afraid of the person is not a bad person than the other person than the difference between the difference and what you want and you know it would

Answer:

Were they both 45? I'm kinda confused on that part, but I think Ralph would be 48 and Bob would be 50

Step-by-step explanation:

Answer:

34 and 17

Step-by-step explanation:

Bob = B

Ralph = R

B=2R

B-3+R-3=45

B+R-6=45

+6         +6

B+R=51

Substitute B for 2R

2R+R=51

3R=51

R=17

2(17)=34

so B is 34 and R is 17

Answer:

a) (X - 4)x 5 = 15

b) the answer is 7

Step-by-step explanation:

divide 15 by 5 and then add 4, do the equasion backwards :)

The solution of the given equation (X - 4)x 5 = 15 would be equal to 7.

An equation is an expression that shows the relationship between two or more numbers and variables.

Now we will try solving it first using the method of substitution in which we express one variable in other variable's form and then you can substitute this value in other equation to get linear equation in one variable.

We are given that a number subtract 4, then divide by 5. The result equals 15.

a) The equation form as

(X - 4)x 5 = 15

b) Now solving the equation as;

(X - 4)x 5 = 15

5x - 20 = 15

x = 35/7

x = 7

Hence, the answer is 7

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Answer:

Acute triangle.

Step-by-step explanation:

Since all angles in the triangle is less than 90°, it is an acute triangle.

Answer:

19

Step-by-step explanation:

You need to find the biggest and smallest number; 25,6

Then you subtract 6 from 25

25-6=19

I hope this helps!!!!!!!

Answer:

19

Step-by-step explanation:

The range is the difference between the highest and the lowest number

So 6, 12, 18, 20, 25 and 25-6 = 19

Answer:

The answer will be 111,113,115,117

Step-by-step explanation:

hope this helps okkeol :]

Answer: 4 consecutive odd numbers are 111, 113, 115 and 117.

Step-by-step explanation: