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baherus [9]
3 years ago
11

Simplify (7x) - (-2x)​

Mathematics
2 answers:
Sholpan [36]3 years ago
8 0

Answer:

The answer would be x=9

Step-by-step explanation:

(7x)-(-2x)

7x+2x

x=9

I hope this will answer this question for you and have a nice weekend

Valentin [98]3 years ago
7 0

Just try Google or calculator millions of sites simplify it

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Please help me with this.
JulijaS [17]

The <em>speed</em> intervals such that the mileage of the vehicle described is 20 miles per gallon or less are: v ∈ [10 mi/h, 20 mi/h] ∪ [50 mi/h, 75 mi/h]

<h3>How to determine the range of speed associate to desired gas mileages</h3>

In this question we have a <em>quadratic</em> function of the <em>gas</em> mileage (g), in miles per gallon, in terms of the <em>vehicle</em> speed (v), in miles per hour. Based on the information given in the statement we must solve for v the following <em>quadratic</em> function:

g = 10 + 0.7 · v - 0.01 · v²      (1)

An effective approach consists in using a <em>graphing</em> tool, in which a <em>horizontal</em> line (g = 20) is applied on the <em>maximum desired</em> mileage such that we can determine the <em>speed</em> intervals. The <em>speed</em> intervals such that the mileage of the vehicle is 20 miles per gallon or less are: v ∈ [10 mi/h, 20 mi/h] ∪ [50 mi/h, 75 mi/h].

To learn more on quadratic functions: brainly.com/question/5975436

#SPJ1

3 0
2 years ago
What is the LCM of 2,8 and 10
leva [86]
Lcm= 2
Because
2/2= 1
2/8=4
2/10=5
5 0
3 years ago
For the right triangle find the missing length. Round your answer<br> to the nearest tenth.
Drupady [299]

Answer:

5.8

Step-by-step explanation:

tangent = opposite over adjacent

10*tan(30) ≈ 5.774

round to the nearest 10th

5.8

5 0
3 years ago
Read 2 more answers
The values in the table represent a linear function. How does the value of y change in relation to a change in the value of x?
Verizon [17]

if x is changed by 2 , the y changes by  +3, Option B is the correct answer.

<h3>What is the  equation of a Linear Function ?</h3>

The equation of a Linear Function is given by

y = mx +c

here m is the slope , c is the intercept on the y axis

The data is given in the table

To determine the relation , a function needs to be established between the variables.

m = ( y2 -y1 )/(x2-x1)

m = (-7 +10) /(-2+4)

m = 3 / 2

y = (3/2)x + c

at x = 0 , y= -4

-4 = 0 + c

c = -4

The function is

y = (3/2) x - 4

if x is changed by 2 , the y changes by  +3

Therefore Option B is the correct answer.

To know more about Linear Function

brainly.com/question/21107621

#SPJ1

7 0
2 years ago
What term must we add to complete the square on x^2 + 12x
klasskru [66]

Answer:

Step-by-step explanation:

You need to first find what x equals before you can solve the equation.

6 0
3 years ago
Read 2 more answers
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