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3 years ago

5

If a student is randomly choosing the answer to each of four true-false questions in a test, what is the probability that all hi

s answers are correct (write up to fourth decimal place)?

1 answer:

Igoryamba3 years ago

7 0

The answer is 1/16 that all his answers are true which is equal to 0.625

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In a recent census, the population of a country was 7,946,700.

choli [55]

Answer:

7.9467 x 10^6

Step-by-step explanation:

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2 years ago

The area of a parallelogram on the map is 5cm*2. What is the area of the actual parallelogram? Explain why you can find the area

tatiyna

Step-by-step explanation:

Area=5×50m

=250m²/25000cm²

since they gave us the area of a parallelogram on a map and a scale there's no need to know the dimensions.

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2 years ago

If GHJ is equal to LMK, with a scale factor of 5:6, find the perimeter of GHJ.

xxTIMURxx [149]

Answer: Weeeell, 35

Step-by-step explanation:

1. By definition, the perimeter of a triangle is the sum of the lenght of each side.

2. Then, the perimeter of the triangle LMK is:

P_{LMK}=14+17+11\\P_{LMK}=42

3. If both triangles are congruent and the scale factor is 5:6 (Which you can rewrite as a fraction: 5/6), you must multiply the perimeter of the triangle LMK by this scale factor.

4. Then, you have that the perimeter of the triangle GHJ is:

P_{GHJ}=42*\frac{5}{6}=35

<em><u>What I have to say:</u></em>

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3 years ago

For every 5 coins carmen gets ,she gives 2 to her brother Frankie.If carmen has 9 coins,howmany coins does Frankie have?

FrozenT [24]

Answer:

Frankie have 6 coins

Step-by-step explanation:

For every 5 coins Carmen gets ,she gives 2 to her brother Frankie

Out of 5 coins, Carmen given 2 to her brother Frankie

So Carmen has 3 coins and Frankie has 2 coins

Ratio of coins , Frankie to Carmen is

2: 3

We need to find the number of coins Frankie has if Carmen has 9 coins

ratio of Frankie to Carmen is x : 9

Now make a proportion and solve for x

$\frac{2}{3} =\frac{x}{9}$

Cross multiply it

2*9 = 3*x

18 = 3x

Now divide both sides by 3

so x= 6

Frankie have 6 coins

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3 years ago

Plz ASAP<br><br> 40 POINTS!!!!!

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Answer:

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Step-by-step explanation:

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3 years ago

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