Ask question

Ask question

All categories

3 years ago

6

Justity each step in solving the equation 4x = 7(x - 3) by writing a reason for each statement Answer Statement Reason 1. 4x7x3)

1. 2. 4x = 7x - 21 2. 3. 3x = 21 3. 4X=7 4.

1 answer:

NemiM [27]3 years ago

4 0

Answer:

2. 4x = 7x - 21

Step-by-step explanation:

$4x = 7(x - 3) \\ 4x = 7x - 21 \\ 21 = 7x - 4x \\ 21 = 3x \\ \frac{21}{3} = x \\ 7 = x \\$

You might be interested in

Find the perimeter of a square is each side is 3/4 miles long

ch4aika [34]

Three miles long.......

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!!!

sleet_krkn [62]

Answer:

1. T =34

2.143 =exterior A

Step-by-step explanation:

The sum of the angles in a triangle is 180 degrees

T+H+E =180

T + 107+39 = 180

Combine like terms

T +146 = 180

Subtract 146 from each side

T +146-146 = 180-146

T =34

The exterior angle is the sum of the opposite interior angles in a triangle.

B+T =exterior A

66 +77 = exterior A

143 =exterior A

5 0

3 years ago

Which inequality is true when R = 4.6

Nookie1986 [14]

Answer:

A. 3R > 14

Step-by-step explanation:

Here R = 4.6

Now we have to check each options and find which is true.

3R > 14

Dividing both sides by 3, we get

R > 14/3

R > 4.67

Which is true.

All other options are not true.

R + 32 >

R > -32 is not true.

R - 12 < -8

R < +4 is not true.

R/3 < 1

R < 3 is not true.

Hope this will help you.

5 0

3 years ago

HELPPPPP PLEASEEEEE!!!

Pepsi [2]

Answer:

The height of right circular cone is h = 15.416 cm

Step-by-step explanation:

The formula used to calculate lateral surface area of right circular cone is: $s=\pi r\sqrt{r^2+h^2}$

where r is radius and h is height.

We are given:

Lateral surface area s = 236.64 cm²

Radius r = 4.75 cm

We need to find height of right circular cone.

Putting values in the formula and finding height:

$s=\pi r\sqrt{r^2+h^2}\\236.64=3.14(4.75)\sqrt{(3.75)^2+h^2} \\236.64=14.915\sqrt{(3.75)^2+h^2} \\\frac{236.64}{14.915}=\sqrt{14.0625+h^2} \\15.866=\sqrt{14.0625+h^2} \\Switching\:sides\:\\\sqrt{14.0625+h^2} =15.866\\Taking\:square\:on\:both\:sides\\(\sqrt{14.0625+h^2})^2 =(15.866)^2\\14.0625+h^2=251.729\\h^2=251.729-14.0625\\h^2=237.6665\\Taking\:square\:root\:on\:both\:sides\\\sqrt{h^2}=\sqrt{237.6665} \\h=15.416$

So, the height of right circular cone is h = 15.416 cm

4 0

2 years ago

Determine the value of x (ill give brainliest)

Zina [86]

Answer:

I believe the answer is 7

4 0

2 years ago

Read 2 more answers