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3 years ago

Helpssssssssssssssssssssssssssssssssssssssssssssssssssssss

Mathematics

1 answer:

dlinn [17]3 years ago

5 0

He can only make 2!
Explanation: 7 can only go into 17 twice

Hope this helps!:)

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How old am I if 300 reduced by 3 times my age is 39?

Tanzania [10]

Let your age represent X

300-3x=39

x= 87

you are 87 years old

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3 years ago

Help me with this pls

beks73 [17]

The answer is B as I believe

8 0

3 years ago

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Use a rectangular array to write the product in Standard form 2(x+10=?

Sladkaya [172]

Hello there!

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See the attached picture for the answer!

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3 years ago

Priscilla invests $10,000 in an account that compounds interest continuously and earns 11%. How long will it take for her money

Shkiper50 [21]

Answer:

Step-by-step explanation:

When the interest compounds continuously, our formula is

$A(t)=Pe^{rt}$

If we start with 10000 and are looking for how long, t, it takes to double, we are looking for how long it will take for our account to have 2 times 10000. That's 20000. Therefore, our equation is

$20000=10000e^{.11t}$

Divide both sides by 10000 to get

$2=e^{.11t}$

Take the natural log of both sides to "undo" that e:

$ln(2)=ln(e^{.11t})$

Again, since ln and e undo each other what we have now is

ln(2) = .11t and

$\frac{ln(2)}{.11}=t$ so

t = 6.3 years

5 0

3 years ago

What would be the remainder ?

ruslelena [56]

Answer:

Step-by-step explanation:

Given (x + h) is a factor of f(x) then f(- h) = 0

Given

p(x) = x³ - 4x² + ax + 20 , with (x + 1) as a factor then

p(- 1) = (- 1)³ - 4(- 1)² - a + 20 = 0 , that is

- 1 - 4 - a + 20 = 0

15 - a = 0 ( subtract 15 from both sides )

- a = - 15 ( multiply both sides by - 1 )

a = 15 , thus

p(x) = x³ - 4x² + 15x + 20

If p(x) is divided by (x + h) then p(- h) is the remainder, so

p(- 2) = (- 2)³ - 4(- 2)² + 15(- 2) + 20 , that is

- 8 - 16 - 30 + 20 = - 34 → A

3 0

4 years ago