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3 years ago

Solve for r, A=P(1+mr)

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

4 0

R = A 1
— - —
Pm m

:)

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1 a. Solve, and plot the solution set.<br>-what is the answer

Keith_Richards [23]

Answer:

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Step-by-step explanation:

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4 years ago

Beth has hamsters at her house. the number of hamsters is equal to the sum of the number of birds at kristins house and the numb

Softa [21]

You take 12 divided by 4 and you get 3
So there should be 3 pets at each house

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3 years ago

Solve 2x^3+7x^2-2x-1=o

Mashcka [7]

Answer:

$x=\sqrt{3}-2\\x=-\sqrt{3}-2\\x=\frac{1}{2}$

Step-by-step explanation:

This is a hard one

We have to use the rational root theorem

$2x^3+7x^2-2x-1$ = 0

We have to find all the factors of a and d and put them in a fraction

$a=2\\d=-1\\\frac{1}{1,2}$

We then plug them into the equation to see if any of them work

The equation isn't true when plugging 1, but is true when plugging in 1/2

factored form of 1/2 is (2x-1)

Then we divide the original equation by (2x-1) (you can use synthetic division or long division, it would be hard to type out the process for that) to get $x^2+4x+1$

So now the equation is $(2x-1)(x^2+4x+1)$

Solve the second half of this equation using the quadratic formula to get

$\sqrt{3}-2$ and $-\sqrt{3}-2$

We already know the solution for the first half of the equation (1/2)

So the final answers are:

$x=\sqrt{3}-2, -\sqrt{3}-2, \frac{1}{2}$

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3 years ago

James sets off from home on his bike.The graph shows his journey.A)what is James average speed on his outward journey?B)How long

katen-ka-za [31]

Answer:

a) ~10.58 km/h

b) 45 min

c) 15 km/h

Step-by-step explanation:

a) 45km for 4 hours and 15min (4.25 hours) = 45 / 45.25 ~= 10.58 km/h

b) From 4:15 to 5 = 45min

c) 45km for 3 hours (5:00 to 8:00) = 45 / 3 = 15 km/h

NOTE!

The author actually wanted the answer on A) to be 10 km/h and the journey to be 4.5 hours (4 hours 30min) but instead they made it 4.25 (as shown on the graph, since 1 square is 30 minutes).

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4 years ago

What is 2 2/3×3 1/4 as a fraction form

fgiga [73]

The fraction form is 26/3 or 8 2/3

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3 years ago