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pav-90 [236]
3 years ago
12

This semicircle has a diameter of 5 m.

Mathematics
2 answers:
Mumz [18]3 years ago
8 0
3.93  is the correct answer.
I hope this helps.
Svetradugi [14.3K]3 years ago
7 0
3.93 Should be it
Formula for area of a semicircle:<span> Area=pi* r^2/2.
The radius is 2.5
</span>
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If a student didn’t understand proportional relationships, how would you explain it to them?
kirill [66]

Answer:

Proportional relationships are relationships between two variables where their ratios are equivalent.

Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality".

I really recommend watching Khan Academy's video over proportional relationships, the speaker explains it very well!!

7 0
2 years ago
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The graph of a system of linear equations is shown below. What is the solution of the system?​
Iteru [2.4K]

Answer: (2,2)

Step-by-step explanation:

It is where the two lines intersect.

7 0
3 years ago
Seiji and Gavin both worked hard over the summer. Together they earned a total of $450. Gavin earned $30 more than seiji.
jok3333 [9.3K]

Answer:

(a) s+g=450\\g=s+30

(b) The graph is shown below.

(c) Seiji earned $ 210 and Gavin earned $ 240.

Step-by-step explanation:

Given:

Sum of earnings of Seiji and Gavin = $ 450

Gavin earns $ 30 more that that of Seiji.

(a)

So, as per question, if s and g are the amounts earned by Seiji and Gavin respectively, then;

s+g=450\\g=s+30

(b)

The graph is plotted using the x and y intercepts of each line.

For the line, s+g=450, the x intercept is at g=0. So, x intercept is (450,0). Similarly, the y intercept is when s=0, which is (0,450). Draw a line passing through these two points. The red line represents s+g=450.

We follow the same process to plot the next line. The x intercept is at (-30,0) and y intercept is at (0,30). Draw a line passing through these two points. The blue line represents g=s+30.

The graph is shown below.

(c)

From the graph, the point of intersection of the two lines gives the earnings of each of the persons.

The x value of the point of intersection is the earning of Seiji which is $ 210 and the y value is the earning of Gavin which is $ 240 as shown in the graph.

Therefore, Seiji earned $ 210 and Gavin earned $ 240.

3 0
3 years ago
If each lap is 500 meters, how many laps will be needed to run 437.5 meters?
Musya8 [376]
Well if you subtract 437.5 from 500 you get 62.5 that is the difference between them but in fraction form it would be 5/8.
7 0
3 years ago
PLEASE ANSWER ASAP, WILL GIVE BRAINLIST, 50 POINTS AND 5 STARTS IF 100% CORRECT.
ELEN [110]

Yellow and 1: Fraction = 1/15 Decimal = .067 Percent = 6.7%

Red and odd: Fraction = 2/15 Decimal = .133 Percent = 1.3%

PS. I rounded decimals to nearest thousandth, and decimals to nearest tenth.

5 0
3 years ago
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