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3 years ago

Please help!!!! due soon!!

Mathematics

2 answers:

Airida [17]3 years ago

8 0

-0.8 is the answer to that

Kamila [148]3 years ago

4 0

The answer is 0.8 have a nice day

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A bag of apples weighs 8 4 10 pounds. A crate of bananas is 5 times as heavy as the apples. How much heavier are the bananas tha

Mrrafil [7]

Answer: 33640 pounds
Explanation: 8410 times 5 is 42050, - 8410 = 33640

3 0

3 years ago

Simplify the given expression, using only positive exponents. Then complete the statements that follow.

Alenkinab [10]

Answer:

lol but where is the main question

7 0

3 years ago

6. The base of a triangular field is three times its height. If the cost of cultivating the field

dedylja [7]

Answer:

base = 519.62, height = 173.21 m

Step-by-step explanation:

Let the base and height of the triangle be represented by b and h respectively.

Thus,

b = 3h

Area of a triangle = $\frac{1}{2}$ x base x height

For the given triangle,

area = $\frac{1}{2}$ x b x 3h

= $\frac{3}{2}$ bh

Area of the triangle = $\frac{3}{2}$ bh

To determine the number of hectares,

36 per hectare = 486

hectare = $\frac{486}{36}$

= 13.5

numbers of hectares = 13.5

Area of the hectares = number of hectares x 10 000 m²

= 13.5 x 10 000

= 135000

Total area of the hectares = 135 000 m²

So that,

area of the hectares = area of the triangle

area of the triangle = $\frac{3}{2}$ bh

135 000 = $\frac{3}{2}$ bh

270000 = 3bh

bh = $\frac{270000}{3}$

= 90000

bh = 90000

But, b = 3h

3h x h = 90000

3 $h^{2}$ = 90000

$h^{2}$ = $\frac{90000}{3}$

= 30000

h = $\sqrt{30000}$

= 173.2051

h = 173.21 m

So that,

b = 3 x 173.2051

= 519.6153

b = 519.62

Therefore, the base of the triangle is 519.62 m, while the height is 173.21 m.

7 0

3 years ago

(problem 6.13 page 97) Consider a population in which 80% of males and 60% of females are employed. In this population, 55% of i

svp [43]

Answer:

There is a 50.77% probability that no more than one of those chosen is not employed.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they will be employed, or they will not. So we use the binomial probability distribution to solve this question.

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 combinations 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.

We have these following percentages:

55% of the individuals are female.

So 45% of the individuals are male.

80% of males are employed. So 20% of males are unemployed.

60% of females are employed. So 40% of females are unemployed.

If I pick five persons at random from this population, what is the probability that no more than one of those chosen is not employed?

Using the binomial distribution, p is the probability that a person is unemployed. 40% of the females and 20% of the males are unemployed. The population is 55% females and 45% males. So

$p = 0.4*0.55 + 0.2*0.45 = 0.31$