All categories

3 years ago

Solve multi-step equations with various solution sets (7th grade): 6x + 4 = 2(3x - 5)

Mathematics

1 answer:

Lerok [7]3 years ago

3 0

Answer:

X =0

Step-by-step explanation:

6x + 4 = 6x-10

6x - 6x = -10 - 4

0 ≠ -14

You might be interested in

What is the value of x?

gulaghasi [49]

Answer:

30 degrees

Step-by-step explanation:

first find the angle of the other angle that is not found

180-100=80 degrees

since all angles of triangle add up to 180 degrees..

180-80-70= 30 degrees

3 0

3 years ago

Read 2 more answers

PLEASE HELP WILL AWARD TWENTY POINTS

Snowcat [4.5K]

Answer:

Option A is correct.

$\sin \frac{\pi}{3}=\frac{opposite}{Hypotenuse}=\frac{opposite}{1}=opposite$

The length opposite the angle is the vertical distance from the x-axis on the graph

Step-by-step explanation:

Given:

Unit circle is a circle centered at the origin, (0,0) with radius(r) i.,e r= 1.

The angle $\frac{\pi}{3}$ forms an arc of length S and the x-axis and y-axis divide the coordinate plane and the unit circle as it is centered at (0.0).

Also, the terminal side intersect the circle at (x, y).

Now, to find the value of $\sin \frac{\pi}{3}$ ,we will use the trigonometric ratios formulas :

For any right angle, $Sine = \frac{opposite}{Hypotenuse}$

Here, hypotenuse = r =1 and the side opposite the angle $\frac{\pi}{3}$ is also called the vertical distance from the x-axis.

therefore, $\sin \frac{\pi}{3} =\frac{opposite}{Hypotenuse}=\frac{opposite}{1}=opposite$

Also, the length opposite the angle is the vertical distance from the x-axis on the graph

8 0

3 years ago

Read 2 more answers

Scientific form of 47500000000

melomori [17]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Scientific notation for above value is ~

$4.75 \times 10 {}^{10}$

5 0

3 years ago

Read 2 more answers

(1 pt) A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.4 cm/min. At what rate is the

mrs_skeptik [129]

Answer:

Rate at which volume of the snowball decreasing = 90.48 cm³/min

Step-by-step explanation:

$\texttt{Volume of sphere, V =}\frac{4}{3}\pi r^3=\frac{4}{3}\pi \left (\frac{D}{2} \right )^3=\frac{1}{6}\pi D^3$

Differentiating with respect to time,

$\frac{dV}{dt}=\frac{d}{dt}\left (\frac{1}{6}\pi D^3 \right )=\frac{1}{6}\pi \times 3D^2\frac{dD}{dt}\\\\\frac{dV}{dt}=\frac{1}{2}\pi D^2\frac{dD}{dt}$

Substituting

D = 12 cm and rate of change of diameter = 0.4 cm/min.

$\frac{dV}{dt}=\frac{1}{2}\pi D^2\frac{dD}{dt}\\\\\frac{dV}{dt}=\frac{1}{2}\pi \times 12^2\times 0.4=90.48cm^3/min$

Rate at which volume of the snowball decreasing = 90.48 cm³/min

3 0

3 years ago

Solve system by elimination <br><br> 9x + 3y = 24<br> 10x - 2y = 0

valentina_108 [34]

Answer:

(1, 5 )

Step-by-step explanation:

Given the 2 equations

9x + 3y = 24 → (1)

10x - 2y = 0 → (2)

Multiplying (1) by 2 and (2) by 3 and adding the result will eliminate the y- term

18x + 6y = 48 → (3)

30x - 6y = 0 → (4)

Add (3) and (4) term by term to eliminate y

48x + 0 = 48

48x = 48 ( divide both sides by 48 )

x = 1

Substitute x = 1 into either of the 2 equations and solve for y

Substituting into (1)

9(1) + 3y = 24

9 + 3y = 24 ( subtract 9 from both sides )

3y = 15 ( divide both sides by 3 )

y = 5

solution is (1, 5 )

4 0

3 years ago