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3 years ago

I need help with this question

Mathematics

2 answers:

Naya [18.7K]3 years ago

4 0

3; -1/2 * -6 you just need to plug in -6 for x

Sedaia [141]3 years ago

3 0

Answer:

Step-by-step explanation:

just do (-1/2) x (-6) where the negatives cancels out and half of 6 is 3

Brainilist Maybe?

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14. The area of 10 square plots is 160 ares. Find the length in metres of the side of each plot (3mks)

VashaNatasha [74]

Answer:

Step-by-step explanation:

1 are = 100 m²

Assuming the ten squares are congruent, the area of each square is 160/10 = 16 are

16 are × 100 m²/are = 1600 m²

each side is √1600 = 40 m

7 0

3 years ago

To solve the equation 12x = –72, you ?

IgorLugansk [536]

12x=-72 //:12

12x:12=-72:12

x=-6

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3 years ago

Circle graphs, or pie graphs, show information over a period of time.

OLEGan [10]

Answer:

The given statement is false.

Step-by-step explanation:

Circle graphs, or pie graphs, show information over a period of time.

This statement is false.

A circle graph, or a pie chart, helps in visualizing information and data. These graphs are used to show the results in a proportional manner.

The circle graph is divided in proportions that show the percentage of a certain answer.

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3 years ago

I will give brainliest answer

earnstyle [38]

Answer:

A translation by 1 units to the right and 3 units down.

Step-by-step explanation:

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3 years ago

A recent survey found that 70% of all adults over 50 wear

lubasha [3.4K]

Answer:

There is an 84.97% probability that at least six wear glasses.

Step-by-step explanation:

For each adult over 50, there are only two possible outcomes. Either they wear glasses, or they do not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinatios of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

In this problem we have that:

$n = 10, p = 0.7$

What is the probability that at least six wear glasses?

$P(X \geq 6) = P(X = 6) + `P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10) = 0.8497$

There is an 84.97% probability that at least six wear glasses.

5 0

3 years ago