Liis tracking the amount in his bank account. He now has $125, and he plans to deposit $45 each month. In how many

Mathematics

1 answer:

S_A_V [24]3 years ago

6 0

b. 6 months.

360-125=235

235/45=5.222

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In a recent poll, 44% of survey respondents said that, if they only had one child, they would prefer the child to be a boy.

viva [34]

Answer:

a) The probability that 71 of 150 will prefer boy child is 71/150 or 0.47

b) The result contradicts the poll actual percentage is 47.33% which is 3.33% more than the poll predicted

Step-by-step explanation:

If 71 out of 150 prefer boy child

The probability that the 71 will prefer boy child is

= 71/150

The actual percentage is

(71/150)*100%

= 47.33%

This contradicts the poll as this is more than the poll predicted. That means Less than 71 of 150 actually preferred boy child.

5 0

3 years ago

How do subtract whole numbers with fractions

Mariana [72]

You put the whole number over 1 then multiply so both fractions have the same denominator.
Example:
2- 1/2

2/1 -1/2

4/2 - 1/2 = 3/2 = 1 1/2

I’m not sure if this helped but I hope it did

6 0

3 years ago

Which of these problem types cannot be solved using the law of sines

timama [110]

Answer: The correct option are B, C and D.

Explanation:

The law of sine states that,

$\frac{\sin A}{a} =\frac{\sin B}{b}=\frac{\sin C}{c}$

Where A, B, C are interior angles of the triangle and a, b, c are sides opposite sides of these angles respectively as shown in below figure. Only AAS or SSA types problems can be solved by using Law of sine.

Since we need the combination of two sides and one angle or two angles and one side.

In option A, the two consecutive angles are known and a side which makes the second angle with base side is known, therefore the first angle is opposite to the given side, so the law of sine can be used for AAS problems.

Therefore, option A is incorrect.

In option B a side is known and two inclined angle on that line are known. But to use Law of sine we want the line and angle which in not inclined on that line, therefore the ASA problem can not be solved by Law of sine and the option B is correct.

In option C two sides and their inclined angle is known. But to use Law of sine we want the side and angle which in not inclined on that line, therefore the SAS problem can not be solved by Law of sine and the option C is correct.

In option D three sides are given but any angle is not given, therefore the SSS problem can not be solved by Law of sine and the option D is correct.