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3 years ago

Please help:P trig is confusing

Mathematics

1 answer:

Roman55 [17]3 years ago

4 0

V=1/2 bh
B=1/2 (8)(15)=60
V=60(17)=1,020 or V=1/2(60)(17)= 510

ANSWER= 1,020 or 510

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5 hours and 42 mins

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3 years ago

Subtract (−3)−(−2) using the number line. Select the location on the number line to plot the difference.

marta [7]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Please help me, thank you!

dlinn [17]

Answer:

a. The first four terms are -4 , -4/3, -4/9 , -4/27

b. The series is converge

c. The series has sum to ∞ , the sum of the series is -6

Step-by-step explanation:

* Lets revise the geometric series

- Geometric series:

- There is a constant ratio between each two consecutive numbers

- Ex:

# 5 , 10 , 20 , 40 , 80 , ………………………. (×2)

# 5000 , 1000 , 200 , 40 , …………………………(÷5)

* General term (nth term) of a Geometric Progression:

- U1 = a , U2 = ar , U3 = ar2 , U4 = ar3 , U5 = ar4

- Un = ar^n-1, where a is the first term , r is the constant ratio

between each two consecutive terms and n is the position of the

number in the sequence

* In the problem

∵ The Un = -4(1/3)^n-1

∴ a = -4

∴ r = 1/3

a) To find the first four numbers use n = 1, 2 , 3 , 4

∴ U1 = a = -4

∴ U2 = -4(1/3)^(2 - 1) = -4(1/3) = -4/3

∴ U3 = -4(1/3)^(3 - 1) = -4(1/3)^2 = -4(1/9) = -4/9

∴ U4 = -4(1/3)^(4 - 1) = -4(1/3)^3 = -4(1/27) = -4/27

* The first four terms are -4 , -4/3, -4/9 , -4/27

b) If IrI < 1 then the geometric series is converge and if IrI > 1

then the geometric series is diverge

∵ r = 1/3

∴ The series is converge

c. The convergent series has sum to ∞

- The rule is: S∞ = a/(1 - r)

∴ S∞ = -4/(1 - 1/3) = -4/(2/3) = -4 × 3/2 = -6

* The sum of the series is -6

7 0

3 years ago

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andrezito [222]

Answer:

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Step-by-step explanation:

4 0

3 years ago

A plane takes off from the New Orleans airport and flies over the Gulf at 1,500 ft. Above sea level. At the same time a submarin

Vedmedyk [2.9K]

We have been given that a plane takes off from the New Orleans airport and flies over the Gulf at 1,500 ft. Above sea level. At the same time a submarine leaves the port in New Orleans, submerges and travels at 300 feet below sea level. We are asked to find the distance between the plane and the submarine.

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Therefore, the distance between the plane and the submarine is 1800 feet.

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4 years ago