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3 years ago

A rectangular courtyard 3.78 metres long

Mathematics

1 answer:

Alborosie3 years ago

8 0

Answer:

i believe the answer is C

Step-by-step explanation:

3.78 meters = 378 cm

5.25 meters = 525 cm

378 x 525 = 198,450

198,450 / 42 = 4725

4725 which is a whole number

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How do you factor this polynomial?

iragen [17]

The answer is (3x + 5) ^2

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2 years ago

Find all the zeroes of the equation. x4 – 6x2 – 7x – 6 = 0

NeX [460]

Answer:

-2, 3, -0.5 + 0.866i, -0.5 - 0.866i.

Step-by-step explanation:

As the last term is -6 , +/- 2 , +/- 3 are possible zeroes.

Try 2:-

(2)^4 - 6(2)^2 - 7(2) - 6 = -28 so 2 is not a zero.

3:-

(3)^4 - 6(3)^2 - 7(3) - 6 = 0 so 3 is a zero.

(-2)^4 - 6(-2)^2 - 7(-2) - 6 = 0 so -2 is also a zero.

Divide the function by (x +2)(x - 3), that is x^2 - x - 6

gives x^2 + x + 1

x^2 + x + 1

So we have x^2 + x + 1 = 0

x = [-1 +/- √(1^1 - 4*1*1)] / 2

= -1 + √(-3) / 2 , - 1 - √(-3) / 2.

= -0.5 + 0.866i, -0.5 - 0.866i

7 0

2 years ago

A recent survey of

Serga [27]

Answer:

The total number of students in a survey is 300.

Let the number of junior male(JM) be x and the number of senior males(SM) be y.

Let the number of junior female(JF) be p and the number of senior males(SF) be q.

It is given that there are 160 males, 80 junior females, 130 seniors.

Since number of males are 160. So the number of females are,

$300-160=140$

Since number of junior females is 80.

$JF+SF=140\\80+SF=140\\SF=60$

Since number of seniors are 130.

$SM+SF=130\\SM+60=130\\SM=70$

Since number of males is 160.

$JM+SM=160\\JM+70=160\\JM=90$

Therefore, the table and venn diagram is shown below.

6 0

3 years ago

Evaluate. Show all work<br> 51-(21-5)x2

masya89 [10]

Answer:

Step-by-step explanation:

51-(16)x2

16x2=32

51-32=19

5 0

2 years ago

Read 2 more answers

What is the volume of the prism?

Dmitry [639]

The volume would be 2040

7 0

3 years ago