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kotegsom [21]
2 years ago
8

A circular table top has a diameter of 90cm. Work out the area of the table top.

Mathematics
2 answers:
BartSMP [9]2 years ago
8 0
Area of a circle is pi*r^2

r is 90/2 = 45

pi x 45 x 45 = 6361.73
Reptile [31]2 years ago
4 0

Answer:

Find the area of table top( circle)

A=πd²/4

A = 3.1415× (90cm)²/4

A= 3.1415× 8100cm²/4

A= 3.1415×2025

A=6361.5375cm²

The area of the table top is 6361.5375cm².

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Solve the following system of equations graphically on the set of axes below. y = x - 3 y = - 3/5x + 5
elena-14-01-66 [18.8K]

Answer:

Solution by graphing: (5, 2)

Step-by-step explanation:

y = x - 3  

y = - 3/5x + 5

To solve systems of linear equations graphically, you'll have graph each equation using 2 pairs of points.  

A great starting point is always using its intercepts:

y = x - 3

where the y-intercept is (0, -3).

To find its x-intercept, set y = 0 and solve for the value of x:

y = x - 3

0 = x - 3

Add 3 to both sides:

0 + 3 = x - 3 + 3

3 = x

Therefore, the x-intercept = (3, 0).

y = - 3/5x + 5

where the y-intercept is (0, 5).

Next, you could find a value of x that easily cancels out the fraction given by the slope (m) = -3/5. An input value of x = 5 cancels out the denominator of the slope:

y = - 3/5x + 5

y = - 3/5(5) + 5

y = -3 + 5

y = 2

Therefore, the other point that you could use to plot on the graph is (5, 2).

For y = x - 3, we'll use the line's intercepts: (0, -3) and (3, 0).  

For  y = - 3/5x + 5, we'll use (0, 5) and (5, 2).  

Plotting these points on the graph will give us a solution of (5, 2), as it is the <u>point where both lines intersect</u>. Attached is a screenshot of the graphed lines.

Please mark my answers as the Brainliest if you find my explanations helpful :)

6 0
3 years ago
Pls help hurry pls!!!!​
EastWind [94]
1 is B.
I’m not sure what 2 is.
3 is A.
4 is B.
8 0
3 years ago
Lily is in the business of manufacturing phones. She must pay a daily fixed cost to rent the building and equipment, and also pa
Nesterboy [21]

Answer:

<h2>The slope is 100</h2>

Step-by-step explanation:

Given that the equation that represents the total cost is given as

C=900+100p--------1

this equation is the same as the equation of a straight line, and we can deduce from it when we compare it the straight line equation

the equation of a line is given as

y=mx+c------2

comparing equation 1 and 2 we have the slope as

m=100

In the context of this problem m=100 means that the cost of producing a phone per material and labour cost is $100

7 0
3 years ago
FOR THESE 3 QUESTION I WILL GIVE 40 POINTS BRAIN LEST AND 5 STAR RATEING
yaroslaw [1]
1. C is a flat line so the answer is Linear constant.

2. C is decreasing

3. Sasha did not withdraw or deposit any money
3 0
3 years ago
a union contract calls for a 6.5% salary increase and the new salary that a worker currently making $58,500 under this contract
irina1246 [14]

58500 x 0.065 = 3802.50

58500 + 3802.50 = 62302.50


7 0
3 years ago
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