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kykrilka [37]
2 years ago
13

Find 1 + 3 + 5 + … + 389.

Mathematics
2 answers:
Triss [41]2 years ago
6 0

Answer:

398 i think

Step-by-step explanation:

user100 [1]2 years ago
3 0

Answer:

The rule is +2

This is the 194th term

Step-by-step explanation:

This is an arithmetic sequence because 2 is added every time.

2x + 1 = 389

2x = 388

x = 194

194* 2 + 1 = 389

mark brainliest please!

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What is the approximate circumference of the circle that has a center at (2, 1) and passes through the point (7, 1)? A 10 units
Naddik [55]

Answer:

C. 31 units

Step-by-step explanation:

Circumference of a circle is the distance around the circle and is given by C = pi•d

Your circle with a point and center given has a radius of 5 because from (2,1) to (7,1) is 5 units. Radius 5 means the diameter is 10.

C = pi•10

= 3.14•10

= 31.4 using 3.14 as an approximation for pi.

Circumference is approximately 31 units.

5 0
2 years ago
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The area of two rectangles is given by he functions: area of a rectangle A:f(x)= 4x2+6x area of rectangle B:g(x)=3x2-x Which fun
dusya [7]

Answer:

x^2+7x if you are asked to find the difference of a function f and function g

Step-by-step explanation:

We are asked to A-B or f(x)-g(x).

(4x^2+6x)-(3x^2-x)

4x^2+6x-3x^2+x

The like terms I'm going to pair up.

4x^2-3x^2+6x+x

1x^2          +7x

x^2            +7x

The answer is x^2+7x

7 0
3 years ago
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The area of a trapezium is 35cm2.find its altitude if the bases is 6cm and 8cm​
r-ruslan [8.4K]

Answer: altitude: 5 cm

Explanation:

\sf \dfrac{1}{2}  ( a + b) h = Area \ of \ trapezium

[ <u>a and b are bases, h is the altitude</u> ]

Here given:

  • Area = 35
  • a = 6
  • b = 8
  • h = ?

Solve for altitude:

\sf \rightarrow \sf \dfrac{1}{2}  ( 6 + 8) h = 35  \ \  \  \Rightarrow  \ \ \ \dfrac{1}{2}  ( 14) h = 35 \ \ \ \ \Rightarrow   \ \ \  \ 7 h = 35 \ \ \ \  \Rightarrow \ \   h = \dfrac{35}{7} \   =  \  5

7 0
1 year ago
A linear function graph has a dotted diagonal line passing through the x-axis at (3, 0), and the y-axis at (0, minus 2) In the f
Delicious77 [7]

The graph which best represents the new function is a linear function on a coordinate plane as shown in the image below.

<h3>How to determine the graph of the new function?</h3>

First of all, we would determine the slope of the linear function as follows:

Slope, m = \frac{Change\;in\;y\;axis}{Change\;in\;x\;axis}\\\\Slope, m = \frac{y_2\;-\;y_1}{x_2\;-\;x_1}\\\\Slope, m = \frac{-2\;-\;0}{0\;-\;3}

Slope, m = ⅔.

Multiplying by -4, the new slope is:

Slope = ⅔ × -4

Slope = -8/3 or 2.7.

For the equation of this line, we have:

y - y₁ = m(x - x₁)

y - 0 = -8/3(x - 3)

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Decreasing the y-value by 1, we have:

y = -8/3x + 8

y = -8/3x + 8 - 1

y = -8/3x + 7

Therefore, we would have a linear function on a coordinate plane as shown in the image attached below.

Read more on slope here: brainly.com/question/17601248

#SPJ1

4 0
2 years ago
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valkas [14]

Answer:

16 2/25

Step-by-step explanation:

1608 / 10^2

1608/100

16 8/100

16 4/50

16 2/25

8 0
2 years ago
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