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2 years ago

BRO SOMEONE HELP!!!!!!!!!!

Mathematics

1 answer:

Mariana [72]2 years ago

3 0

Answer:

t= 52 seconds

A= 7,903 ft

Step-by-step explanation:

So start by writing each plane as an expression.

Plane A

3687+65.5*t is an expression for the ascent

Plane B

5000+40.25*t is an expression for the ascent

to find the time when they are at the same altitude set them equal to each other

3687+65.5*t = 5000+40.25*t

25.25*t = 1313

t= 52 seconds

to find the altitude solve one of the expressions with t=52

A =3687+65.5*52= 7093 ft

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Please help!!! ASAP someone please

murzikaleks [220]

Answer:

0.31 yr

Step-by-step explanation:

The formula for interest compounded continuously is

$FV = PVe^{rt}$

FV = future value, and

PV = present value

If FV is twice the PV, we can calculate the doubling time, t

$\begin{array}{rcl}2 & = & e^{rt}\\\ln 2 & = & rt\\t & = & \dfrac{\ln 2}{r} \\\end{array}$

1. Brianna's doubling time

$\begin{array}{rcl}t & = & \dfrac{\ln 2}{0.065}\\\\& = & \textbf{10.663 yr}\\\end{array}$

2. Adam's doubling time

The formula for interest compounded periodically is

$FV = PV\left (1 + \dfrac{r}{n} \right )^{nt}$

where

n = the number of payments per year

If FV is twice the PV, we can calculate the doubling time.

$\begin{array}{rcl}2 & = & \left (1 + \dfrac{0.0675}{4} \right )^{4t}\\\\&= & (1 + 0.016875 )^{4t}\\& = & 1.016875^{4t}\\\ln 2& = & 4 (\ln 1.01688)\times t \\& = & 0.066937t\\t& = & \dfrac{\ln 2}{0.066937}\\\\& = & \textbf{10.355 yr}\\\end{array}$

3. Brianna's doubling time vs Adam's

10.663 - 10.355 = 0.31 yr

It would take 0.31 yr longer for Brianna's money to double than Adam's.

3 0

3 years ago

5th grade math. Correct answer will be marked brainliest. Yes or no questions (decimals)

inysia [295]

Answer:

Yes

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Vector u = <11, 12>, v = <-16, 6>, and w = <4, -5>. Match each vector operation with its resultant vector expr

MAVERICK [17]

3u - 2v + w gives the resultant vector as; <49, 19>

8u - 6v gives the resultant vector as; <184, 60>

7v - 4w gives the resultant vector as; <61, 104>

u - 5w gives the resultant vector as; <-9, 37>

<h3>How to find the resultant of vectors?</h3>

We are given the vectors;

u = 11i + 12j

v = -16i + 6j

w = 4i - 5j

1) 3u - 2v + w gives the resultant vector as;

3(11i + 12j) - 2(-16i + 6j) + 4i - 5j

⇒ 33i + 36j + 32i - 12j + 4i - 5j

⇒ 49i + 19j

⇒ <49, 19>

2) 8u - 6v gives the resultant vector as;

8(11i + 12j) - 6(-16i + 6j)

⇒ 88i + 96j + 96i - 36j

⇒ 184i + 60j

3) 7v - 4w gives the resultant vector as;

7(11i + 12j) - 4(4i - 5j)

⇒ 77i + 84j - 16i + 20j

⇒ 61i + 104j

4) u - 5w gives the resultant vector as;

11i + 12j - 5(4i - 5j)

11i + 12j - 20i + 25j

-9i + 37j

Read more about Resultant Vectors at; brainly.com/question/110151

#SPJ1

5 0

2 years ago

Whoever can make me laugh with good joke i give brainlliest

Ostrovityanka [42]

Answer:

Q:Why was the baby ant confused?

A:Because all it's uncles were ants!!

LOL SO BAD!!

3 0

4 years ago

What center (3, 6) passes through the point (0, -2)

Nataliya [291]

Answer:

(a.) It passes through the point (3,-6) and is parallel to the line 3x + y - 10 = 0.

(b). It has x-intercept 6 and y-intercept 4.

Step-by-step explanation:

7 0

3 years ago