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Fofino [41]
3 years ago
12

True or false 4x^2+ 7x ^2 + x ^2 = 11x 2

Mathematics
2 answers:
marissa [1.9K]3 years ago
8 0

Answer:

false

Step-by-step explanation:

klio [65]3 years ago
7 0
False

4x^2+7x^2+x^2=12x^2 not 11x2
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Oliga [24]

Answer:

Step-by-step explanation:

Sum of interior angles of a polygon formula:

180 (n - 2)

n represents the n-sided polygon

180 (20 - 2) = 3,240

4 0
3 years ago
Solve for c.<br><br>Give an exact answer.<br><br><br>0.2(10−5c)=5c−16
Zielflug [23.3K]
C = 3
You isolate the variable by dividing each side by factors that don’t contain the variable
5 0
3 years ago
Graph f(x)=−0.5x+3. Use the line tool and select two points to graph the line.
NikAS [45]

Answer: These are some points of the grahp:

(-2,4)

(0, 3)

(2, 2)


Explanation:


1) f(x) =  -0.5x + 3, is the equation of the form y = mx + b


2) y = mx + b is slope-intercept  equation of a line where the slope is m and the y-intercept is b, so, f(x) = - 0.5x + b has slope m = -0.5 and y-intercept b = 3.


3) To graph f(x) = -0.5x + 3, follow these steps:

  • draw two perpedicular axis: vertical axis, labeled y, and horizontal axis, labeled x.
  • draw marks on each axis, each mark equivalent to one unit.
  • the intersection point of the vertical and horizontal axis is the origin, i.e. point (0,0).
  • you can make a table with two or more points:

        x       f(x) = - 0.5x + 3

        -2         4

        0          3

        2          2

        4           1

        6          0


4) You can see the graph in the figure attached, and select any of the points on the line either by using the table or by using the equation f(x) = -0.5x + 3.

8 0
3 years ago
Read 2 more answers
1) 35 is what percent of 140 2) 250 is 45% of what number? 3) 74 is what percent of 740? 4) 350 is 50% of what number?
densk [106]

Answer:

1) 25%

2) 555.56

3) 10%

4) 700

Step-by-step explanation:

1) 35 is what percent of 140

This is calculated as:

35/140 × 100

= 25%

2) 250 is 45% of what number?

Let the number be represented as x

This is calculated as:

45% of x = 250

45/100 × x = 250

45x /100 = 250

Cross Multiply

45x = 250 × 100

x = 25000/45

x = 555.55555556

x = 555.56

3) 74 is what percent of 740?

Let the percentage be represented by x

x% × 740 = 74

Divide both side by 740

x% = 74/740

x% = 0.1

Converting to percentage

0.1 × 100 = 10%

4) 350 is 50% of what number?

Let the number the represented by x

This is calculated as:

50% of x = 350

50/100 × x = 350

50x /100 = 350

Cross Multiply

50x = 350 × 100

x = 35000/50

x = 700

x = 555.56

5 0
3 years ago
How do i write a number in standerd form
pickupchik [31]
In its normal way, For example: 214, Write it in the way it is Usually written.
8 0
3 years ago
Read 2 more answers
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