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3 years ago

Suppose an airplane climbs 15 feet for every 40 feet it moves forward. What is the slope of this airplanes ascent?

Mathematics

1 answer:

Goryan [66]3 years ago

8 0

Answer:

3/8

Step-by-step explanation:

Slope is the same as rise over run, or y/x. In this case, rise over run is 15 over 40, or 15/40. Simplified, this is 3/8.

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Hurry!! Worth 10 points

Solnce55 [7]

Answer:

7 - 2x

Step-by-step explanation:

We start with

-2x + 7

And we can separate the terms

(-2x) (+7)

and move them around

(+7) (-2x)

7 - 2x is an equivalent expression.

7 0

3 years ago

Which is the 2nd term when 3+2x^2-3x^4+x^3 is Arranged in descending order.

AlladinOne [14]

I think the answer is B.

4 0

3 years ago

33762 to the nearest thousand?

Reil [10]

Answer:

34,000

179,400

39,900

Step-by-step explanation:

In the number 33,762, the 3 is in the thousands place, so we look to the number behind it. If it is less than 5, we round down, and if it is more than 5 we round up.

Since 7 is more than 5, we round up, so our rounded number would be

34,000

Let’s use this logic for the rest of these numbers

179,406

4 is in the hundreds

Previous number in 0 which is less than 5, so it rounds down

179,400

39,994

9 is in the tens place

Previous number is 4 which is less than 5, so it rounds down

39,990

8 0

3 years ago

Read 2 more answers

Noah spend $63 on souvenirs during his vacation.That is 35% of the money he bought with him.How much money does Noah have left t

Daniel [21]

Answer:

$81

Step-by-step explanation:

Hello, this is the logic:

If $63 ---> 35%

$X -----> 100%

then,

X = [(100)*(63)]/35

X = $18

Then his total money was 63 + 18 = $81

Best regards

5 0

3 years ago

If x+y = 1, and x^2 + y^2 = -1, what is x^7 + y^13? 1) 0 2) 1 3) -2 4) 2 5) -1

damaskus [11]

Solve for x and y :

x + y = 1 → y = 1 - x

x ² + y ² = -1

x ² + (1 - x)² = -1

x ² + (1 - 2x + x ²) = -1

2x ² - 2x + 1 = -1

2x ² - 2x + 2 = 0

x ² - x + 1 = 0

x ² - x + 1/4 = -3/4

(x - 1/2)² = -3/4

x - 1/2 = ±√(-3/4)

x - 1/2 = ±√3/2 i

x = 1/2 ± √3/2 i → x = exp(± iπ/3)

y = 1 - (1/2 ± √3/2 i ) → y = -1/2 ± √3/2 i → y = exp(± 2iπ/3)

Then

x ⁷ + y ¹³ = exp(± 7iπ/3) + exp(± 26iπ/3)

… = exp(± iπ/3) + exp(± 2iπ/3)

since 7π/3 is equivalent to π/3, and 26π/3 is equivalent to 2π/3 (both modulo 2π).

In either case, we get

x ⁷ + y ¹³ = x + y = 1

so the answer is (2) 1.

8 0

3 years ago