How can i solve the equation 4(2x+7)

2 answers:

6 0

This is an expression not an equation because it has no equal sign.

Distribute 4 over parentheses
4(2x+7)=4•2x+4•7=8x+28

myrzilka [38]2 years ago

3 0

Distribute so times what's outside by what's inside so 4×2x=8x and 4×7=28 then get x by itself by dividing on both sides 28÷8=3.5 your answer is x=3.5

You might be interested in

which of the following answer choices describes all the transformation found in the cubic function f(x)=-(x+2)3-5

Alona [7]

The cubic function is f(x) = x^3

You need to perform three transformations to the cubic function to obtain
f(x) = - (x + 2)^3 - 5.

Those transfformations are:

1) Shift f(x) = x^3, 2 units leftward to obtain f(x) = (x + 2)^3

2) reflect f(x) = (x + 2)^3 across the x-axis to obtain f(x) = - (x + 2)^3

3) shift f(x) = - ( x + 2) ^3, 5 units downward to obtain f(x) = - (x + 2)^3 - 5

8 0

3 years ago

A rocket is launched in the air. The graph below shows the height of the rocket hh in meters after tt seconds.

fgiga [73]

Answer:

The answers are=

(38, 0)
time
in seconds
(19, 1768.9)
Height
in meters

3 0

1 year ago

Shown here mathematical step . Identify the mathematical reason or property used to simplify from the first step to the second s

Xelga [282]

It’s using the distributive method. 7 x a is 7A and 7 x 13 is 91, therefor it is 7A+91.

7 0

2 years ago

Need help with this trigonometry word problem

creativ13 [48]

The distance between the tree and the tower is 30√3m.

Justification:

<u>Let the situation be in a right angleABC form as shown in attached figure</u>.

<u>Given the height of the tower is 30m and the angle of depression to the base of the tree measure 30°</u>.

So, In ΔABC

tanθ = p/b

tan30° = 30/BC

1/√3 = 30/BC

BC = 30√3m.

6 0

2 years ago

Read 2 more answers

What is the solution of the following trig equation: tan(theta)(csc(theta)+2)=0

gtnhenbr [62]

$D:\theta\neq\frac{k\pi}{2};\ k\in\mathbb{Z}\\\\tan\theta(csc\theta+2)=0\iff tan\theta=0\ \vee\ csc\theta+2=0\\\\\\tan\theta=0\iff\theta=k\pi\notin D\\\\csc\theta+2=0\\\\csc\theta=-2\\\\\frac{1}{sin\theta}=-2\\\\-2sin\theta=1\ /:(-2)\\\\sin\theta=-\frac{1}{2}$

$(\theta=-\frac{\pi}{6}+2k\pi\ \vee\ \theta=\frac{7\pi}{6}+2k\pi)-answer$

7 0

3 years ago