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Savatey [412]
3 years ago
9

What is the sum of the first 40 even intergers? A.1720 B.1840 C.1580 D.1640

Mathematics
1 answer:
3241004551 [841]3 years ago
4 0

Answer:

if so 2130.12548...x^2

THATS BOT REALLY THE ANSWER.. I JUST REALLLY NEED TO LVL UP.. IM SO SORRY :(

Step-by-step explanation:

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The length of a rectangular garden is 30 yards more than the width. The perimeter is 300 yards. Find the length and width
Delicious77 [7]

Answer:

Length is 90yards and width is 60yards

Step-by-step explanation:

Perimeter= 2( length+width)

let the width be x

then the length will be 30 + x

300 = 2(30+x+x)

150 = 30 + 2x

120= 2x

x = 120/2

x = 60 yards

length= 30+x

= 30 + 60

= 90yards

8 0
2 years ago
The amount of bacteria in a petri dish increases at a rate proportional to the amount present. At time t=0, the amount of bacter
Lilit [14]

Answer:

Step-by-step explanation:

Formula to be used is N=N0e^(kt)

N0 - amount of bacteria at time 0, which is 10g

t=2, 30g

30 = 10*e^(k*2)

3 = e^(2k)

2k = ln3

k = 0.5ln3

At t=6:

N = 10*e^(0.5ln3*6)

N = 10e^(3ln3)

N = 10e^ln27

N = 10*27 =270

So the amount of bacteria at t=6 is 270

6 0
4 years ago
A farm equipment company kept a record of the number of tractors made each month. What is the mean of the numbers? ANSWERS
Marat540 [252]
The answer I got is 8
7 0
3 years ago
estaba previsto destinar 3/14 de partes de una finca a plazas de aparcamiento pero finalmente han destinado 3/4 de lo previsto a
JulsSmile [24]

Queremos ver que fracción de la finca se ha destinado a plazas de aparcamiento.

La solución es:

La fracción de la finca que se destina a plaas de aparcamiento es 3/56

Sabemos que originalmente se iba a destinar 3/14 del total de la finca a plazas de aparcamiento, pero finalmente se destino 3/4 de lo previsto a zonas ajardinadas.

Es decir, <u>se destino 3/4 de los 3/14 del total de la finca</u> a zonas ajardinadas, entonces <u>el 1/4 restante se dedico a plazas de aparcamiento</u>, esto da:

(1/4)*3/14  = 3/56

La fracción de la finca que se destina a plaas de aparcamiento es 3/56

Sí quieres aprender más, puedes leer:

brainly.com/question/16649102

8 0
3 years ago
What is the area of the trapezoid?
Akimi4 [234]

Answer:

264 cm^2.

Step-by-step explanation:

The area = 1/2 * height * sum of the parallel sides

= 1/2 * 12 * (28 + 16)

= 6 * 44

= 264 cm^2.

4 0
3 years ago
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