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Mnenie [13.5K]
2 years ago
13

I need help simplifying this. giving brainliest as well if u help

Mathematics
1 answer:
Fofino [41]2 years ago
4 0

Answer:

19x−47

Step-by-step explanation:

19x+−25+21+−43

You gotta combine the like terms

(19x)+(−25+21+−43)

19x+−47

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Find the value of x round the length to the nearest tenth. The diagram is not drawn to scale.
Anna35 [415]

Answer:

80

Step-by-step explanation:

has to be 180

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3 years ago
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At Garcia’s bike rentals it cost $23 to rent a bike for 6 hours. how many hours of bike use does a customer get per dollar? Roun
Ket [755]

Given:

Rental costs $23 to rent a bike for 6 hours.

\begin{gathered} \text{Customer get a bike rental for a dollar=}\frac{6}{23} \\ \text{Customer get a bike rental for a dollar=}0.26\text{ hours} \end{gathered}

A customer gets 0.26 hours as a rent for a dollar.

6 0
1 year ago
Please find the missing side of this triangle
umka21 [38]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
You are working in a primary care office. Flu season is starting. For the sake of public health, it is critical to diagnose peop
Aleksandr-060686 [28]

Answer:

E. 0.11

Step-by-step explanation:

We have these following probabilities:

A 10% probability that a person has the flu.

A 90% probability that a person does not have the flu, just a cold.

If a person has the flu, a 99% probability of having a runny nose.

If a person just has a cold, a 90% probability of having a runny nose.

This can be formulated as the following problem:

What is the probability of B happening, knowing that A has happened.

It can be calculated by the following formula

P = \frac{P(B).P(A/B)}{P(A)}

Where P(B) is the probability of B happening, P(A/B) is the probability of A happening knowing that B happened and P(A) is the probability of A happening.

In this problem, we have that:

What is the probability that a person has the flu, given that she has a runny nose?

P(B) is the probability that a person has the flu. So P(B) = 0.1.

P(A/B) is the probability that a person has a runny nose, given that she has the flu. So P(A/B) = 0.99.

P(A) is the probability that a person has a runny nose. It is 0.99 of 0.1 and 0.90 of 0.90. So

P(A) = 0.99*0.1 + 0.9*0.9 = 0.909

What is the probability that this person has the flu?

P = \frac{P(B).P(A/B)}{P(A)} = \frac{0.1*0.99}{0.909} = 0.1089 = 0.11

The correct answer is:

E. 0.11

5 0
3 years ago
What is the operation symbol if the question is like this.<br> 52=8___(4___5)___20
stepan [7]

Answer:

52= 8×(4+5)-20

so I guess it's correct

7 0
3 years ago
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