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3 years ago

Please solve with explanation

Mathematics

1 answer:

leva [86]3 years ago

8 0

Answer:

i pray you get it right lol

Step-by-step explanation:

just ask a teacher

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Factor the expression <br>n^2-15n+56

Pavlova-9 [17]

Answer:

(n-8)(n-7) this is the answer I hope it helped you

7 0

2 years ago

Read 2 more answers

"An airplane ends up 540 miles and 20 degrees north of east from its departure point. If there was a steady wind of 30 mph from

Olenka [21]

Answer:

vr = $540$

vp = 486.22 j + 205.9 j

Theta $= 22.95$

Step-by-step explanation:

The resultant velocity vr = vp + vw

vp = vector velocity of plane and

vw = vector velocity of wind

vr = vector resultant velocity

in one hour the plane travels 540 miles and hence the speed is 540 mph

Hence vr = $540$

vp = 486.22 j + 205.9 j

Theta

$= tan^{-1}\frac{205.9}{486.22} \\= 22.95$

3 0

3 years ago

Mitchell has $17000 to put towards a car. He wants to invest this money in an account paying 3.3%/a

arsen [322]

Answer:

He can afford the monthly payment of the Ford car since his accumulated interest after 5 years is greater than the amount the Ford will cost

Step-by-step explanation:

For the Ford

There are 60 months in 5 years so the total amount he will be paying is 60 * 299 = $17,940

For the Volkswagen, amount to pay will be 60 * 389 = $23,340

Now to see the payment he can afford, let’s calculate the amount he will have in his savings

We shall use the formula for compound interest here

A = I(1 + r/n)^nt

where A is the amount after the

number of years

I is the initial amount = 17,000

r is the rate = 3.3% = 3.3/100 = 0.033

n is the

number of times interest is compounded per year = 12

t = number of years = 5

plugging these values we have

A = 17,000(1 + 0.033/12)^12(5)

A = 17,000( 1.00275)^60

A = $20,045

This shows he can afford the Ford

5 0

3 years ago

Solve the equation by using trial and error method 6 - x =2

den301095 [7]

Answer:

x = 4

Step-by-step explanation:

The given equation is :

6 - x =2

Put x = 1 and see LHS is equal to RHS or not.

So,

6-1 ≠ 2

Put x = 2 and see LHS is equal to RHS or not.

So,

6-2 ≠ 2

Put x = 3 and see LHS is equal to RHS or not.

So,

6-3 ≠ 2

Put x = 4 and see LHS is equal to RHS or not.

So,

6-4=2

2 = 2

So, the solution of the given equation is x = 4.

5 0

3 years ago

Does the following infinite series converge or diverge? 1/3+2/9+4/27+8/81+...

PilotLPTM [1.2K]

Note that A and D are ludicrous choices, so you can throw them away outright. (Any divergent series cannot have a sum, and any convergent series must have a sum.)

The sum is certainly convergent because it can be written as a geometric sum with common ratio between terms that is less than 1 in absolute value.

$S=\dfrac13+\dfrac29+\dfrac4{27}+\dfrac8{81}+\cdots$
$S=\dfrac13\left(1+\dfrac23+\dfrac{2^2}{3^2}+\dfrac{2^3}{3^3}+\cdots\right)$

We can then find the exact value of the sum:

$\dfrac23S=\dfrac13\left(\dfrac23+\dfrac{2^2}{3^2}+\dfrac{2^3}{3^3}+\dfrac{2^4}{3^4}+\cdots\right)$

$\impliesS-\dfrac23S=\dfrac13$
$\implies\dfrac13S=\dfrac13$
$\implies S=1$

So the answer is B.

8 0

3 years ago