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masya89 [10]
3 years ago
14

20 points!

Mathematics
1 answer:
larisa [96]3 years ago
4 0

Answer:

13. no

14. d

15. A

Step-by-step explanation:


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Find the x intercept and the y intercept of the graph of the equation <br> 2x+4y=8
maksim [4K]

Answer:

x-intercept: 4

y-intercept: 2

Step-by-step explanation:

finding the x-intercept:

first, substitute y = 0.

2x + 4 x 0 = 8

then, remove the 0.

2x + 0 = 8

then, divide both sides. 2x = 8

so, x = 4.

finding the y-intercept:

first, substitute x = 0.

then, solve.

2 x 0 + 4y = 8

so, y = 2.

3 0
3 years ago
On a basketball court the free throw line is marked off geometrically this area of the court is called a key and is topped
Alenkinab [10]

Step-by-step explanation:

Arc length formula is

s = rx

where x is radinas.

A semi circle has a radian measure of

\pi

The radius is half of the diameter, 12 so the radius is

12 \times  \frac{1}{2}  = 6

So the arc length is

6 \times \pi = 6\pi

Area of semi circle is

\frac{1}{2} \pi {r}^{2}

where r is the radius.

\frac{1}{2} \pi6 {}^{2}

\frac{1}{2} 36\pi

18\pi

3 0
2 years ago
A manager wants to select one group of 4 people from his 28 assistants.
Keith_Richards [23]

There are, 20475 different groups are possible if the manager wants to select one group of 4 people from his 28 assistants.

<h3>What is permutation and combination?</h3>

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

We have:

A manager wants to select one group of 4 people from his 28 assistants.

The total number of groups possible = C(28, 4)

= \rm \dfrac{28!}{4!(28-4)!}

After calculating:

= 20475

Thus, there are, 20475 different groups are possible if the manager wants to select one group of 4 people from his 28 assistants.

Learn more about permutation and combination here:

brainly.com/question/2295036

#SPJ1

8 0
2 years ago
Toby buys packs of 12 racing cars for R49,99 and sells each racing car for R10 at school
Ratling [72]

Answer:

1.1  R5.83

1.2 R70.01

1.3 58.34%

Step-by-step explanation:

Given that he buys a pack of 12 racing cars  for  R49,99 then the unit cost for a car which is the total cost divided by the number of cars in a pack

= R49,99/12

= R4.17

If each car is sold for R10 then the profit made on each car which is the difference between the cost and the selling price

= R10 - R4.17

= R5.83

The profit margin on one pack of 12 racing cars

Profit margin is the ratio of the profit to the total selling price

The total profit (profit on one pack of 12 racing cars)

= R5.83 * 12

=R70.01

Total selling price = R10 * 12

=R120

Margin = R70.01 / R120

= 58.34%

4 0
3 years ago
Divide 3x ^ 3 + 7x ^ 2 - 8x + 48 by x + 4
Akimi4 [234]

Answer: 3x 3 +7x  2 +40x+4

Step-by-step explanation: Hope that helps

8 0
3 years ago
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