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3 years ago

Evaluate. -3(-2) (-4)

Mathematics

2 answers:

boyakko [2]3 years ago

8 0

Answer:-24

Step-by-step explanation:

-3(-2) = 6 x (-4) = -24

horrorfan [7]3 years ago

8 0

Answer:

-24

Step-by-step explanation:

Multiplying together this odd number of negative integers results in a negative product: -(6)(4) = -24

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Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 10 percent simple interest per year.

Nostrana [21]

Answer:

<h2>$ 22200 in higher yielding bank and $ 44400 in lower yielding bank</h2>

Step-by-step explanation:

Jolene invests in two bank accounts. The first account gives a 4% interest per year and the second bank gives a 10% interest rate per year.

She puts twice as much in the lower yielding bank account. Let us denote the amount put in high yielding bank account by $x$ . Lower yielding bank account will have $2x$ .

$Interest\text{ }per\text{ }year=Principal\times Interest\text{ }rate$

Interest from lower yielding bank = $\dfrac{4}{100} \times 2x=\dfrac{8x}{100}$

Interest from higher yielding bank = $\dfrac{10}{100} \times x=\dfrac{10x}{100}$

Total Interest per year = $ 3996 = $\dfrac{8x}{100} +\dfrac{10x}{100}=\dfrac{18x}{100}$

$x=22200 \$$

∴ Jolene invested $ 22200 in higher yielding bank and $ 44400 in lower yielding bank.

4 0

3 years ago

Which is the simplified form of the expression <br><br><br> please help!!

Art [367]

Answer:

Step-by-step explanation:

p^-8q^-20 * p^8q^-10

=q^-30

=1/q^30

8 0

2 years ago

When Alice spends the day with the babysitter, there is a 0.6 probability that she turns on the TV and watches a show. Her littl

slava [35]

Answer:

a) There is a 48% probability that both Alice and Betty watch TV tomorrow.

b) There is a 48% probability that Betty watches TV tomorrow.

c) There is a 12% probability that only Alice watches TV tomorrow.

Step-by-step explanation:

We have these following probabilities:

A 60% probability that Alice watches TV.

If Alice watches TV, an 80% probability Betty watches TV.

If Alice does not watch TV, a 0% probability that Betty watches TV, since she cannot turn the TV on by herself.

a) What is the probability that both Alice and Betty watch TV tomorrow?

Alice watches 60% of the time. Betty watches in 80% of the time Alice watches. So:

$P = 0.6*0.8 = 0.48$

There is a 48% probability that both Alice and Betty watch TV tomorrow.

b) What is the probability that Betty watches TV tomorrow?

Since Betty only watches when Alice watches(80% of the time), this probability is the same as the probability of both of them watching. So

$P = 0.6*0.8 = 0.48$

There is a 48% probability that Betty watches TV tomorrow.

c) What is the probability that only Alice watches TV tomorrow?

There is a 60% probability that Alice watches TV tomorrow. If she watches, there is an 80% probability that Betty watches and a 20% probability she does not watch.

$P = 0.6*0.2 = 0.12$