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3 years ago

The negative sign can be read as "the opposite of." True False

Mathematics

2 answers:

Aleks04 [339]3 years ago

4 0

True because it’s the opposite not positive

givi [52]3 years ago

3 0

The answer is true because the opposite of 3 is -3

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I need help i am very confused

sasho [114]

9+12=m or 9+12=21

this is because when we start with m-9=12 we know that m is supposed to be the sum of 9 and 12.

if we check our work we will see this

9+12=21

m-9=12

21-9=12

5 0

3 years ago

Seth purchased a printer for $350. The price of the printer that Jose purchased was 4/5 the price that Seth payed. How much did

Natasha2012 [34]

4/5 of 350...." of " means multiply
4/5(350) = 1400/5 = 280 <== Jose payed $ 280

3 0

3 years ago

Assume you are planning a picnic for lunch, but when you woke up there were rain clouds in the sky. If 50% of rainy days start w

Tasya [4]

Answer:

0.25 = 25% probability that it will rain today and ruin your picnic

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Cloudy skies

Event B: Rain

20% of all days start with clouds in the air

This means that $P(A) = 0.2$

50% of rainy days start with rain clouds in the air

50% of 10%. So

$P(A \cap B) = 0.5*0.1 = 0.05$

What is the probability that it will rain today and ruin your picnic

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.05}{0.2} = 0.25$

0.25 = 25% probability that it will rain today and ruin your picnic

3 0

3 years ago

Please help me with this question

Vladimir [108]

Answer: 20

Step-by-step explanation:

numbers belonging to the figure on the left are 2.5 times less than on the right so to find x multiply 8 by 2.5 and that is 20

7 0

2 years ago

Amanda has 227 worth of bills in her purse. she has 6 more $5 dollar bills than $10 bills. The number of $1 bills is three fewer

dalvyx [7]

I think it’s 20 I hope that works

8 0

2 years ago

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