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zhuklara [117]
3 years ago
15

Helen has $30 in a savings account that earns 10% interest, compounded annually.

Mathematics
1 answer:
Ivanshal [37]3 years ago
4 0

Answer:

100+10= 110

110/100= 1.1

30 X 1.1^2= 36.3

$36.30

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An empty suitcase has a mass of 2 kilograms. Draw a bar model to find its mass in grams.
miss Akunina [59]

Answer:

Since I can't draw it I'll give you the answer. 2,000 g.

Step-by-step explanation:

A kilogram is 1000 grams. Multiply 1000x2 to get 2000. But add the g for grams or the answer is considered wrong by teachers.

8 0
3 years ago
A local Chinese restaurant sells combination meals for $9.50 a piece. If the cost of an order is proportional to the number of m
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Step-by-step explanation:

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2 years ago
Consider the cubic function f(x) = x^3 + ax^2 + bx + 4 where (a) and (b) are constants. When f(x) is divided by x-3, the remaind
Debora [2.8K]

Answer:

see explanation

Step-by-step explanation:

Using the Remainder theorem

If f(x) is divided by (x - h) then f(h) = remainder, thus

f(3) = 3³ + a(3)² + b(3) + 4 = 10, that is

27 + 9a + 3b + 4 = 10

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f(- 1) = (- 1)³ + a(- 1)² + b(- 1) + 4 = 6, that is

- 1 + a - b + 4 = 6

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a - b = 3 → (2)

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a = 3 + b → (3)

Substitute a = 3 + b into (1)

9(3 + b) + 3b = - 21 ← distribute and simplify left side

27 + 9b + 3b = - 21

12b + 27 = - 21 ( subtract 27 from both sides )

12b = - 48 ( divide both sides by 12 )

b = - 4

Substitute b = - 4 into (3)

a = 3 - 4 = - 1

Hence a = - 1 and b = - 4

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2 years ago
When you<br> two integers with<br> sign,<br> you<br> and keep the
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3 years ago
18+(-4)-2/5j-4/5j+5? what is the answer
Serga [27]

Answer:

19 6j/5

Step-by-step explanation:

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2 years ago
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