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Mathematics

1 answer:

Evgen [1.6K]3 years ago

7 0

Answer:

Step-by-step explanation:

The pyramid is made up of 4 large triangles. So if you use formula for the triangle $A = \frac{bh}{2}$

where b = 6 and h = 2 after plug you will get 6.

Now times them by 4 because you have 4 triangles so you will end up with 48.

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Use the figure at the right to name the following.

oksian1 [2.3K]

Answer:

Supplementary: AKB and BKG

Complementary: FGE and EGD

Vertical: IJH and KJG

Step-by-step explanation:

6 0

3 years ago

Writing a mixed number and an improper fraction for a shaded...<br> Each circle counts as one whole

Lostsunrise [7]

Answer:

Mixed number = 2 $\frac{1}{4}$

Improper fraction = $\frac{9}{4}$

Step-by-step explanation:

These are the answers because:

1) The mixed number is 2 $\frac{1}{4}$ because there are two whole circles that are filled in, and the third circle is $\frac{1}{4}$ shaded in. Therefore, the mixed number is 2 $\frac{1}{4}$

2) The improper fraction is $\frac{9}{4}$ because there 2 whole circles that are filled in which is $\frac{8}{4}$ , and then $\frac{8}{4}$ + $\frac{1}{4}$ is $\frac{9}{4}$

Hope this helps!

4 0

3 years ago

An oil drilling company ventures into various locations, and its success or failure is independent from one location to another.

densk [106]

Answer:

a) 18.77% probability that the driller drills at 10 locations and has 1 success

b) 75.60% probability that the driller drills at 10 locations and has at least 2 success

Step-by-step explanation:

For each drill, there are only two possible outcomes. Either it is a success, or it is not. The probability of a drill being a success is independent of other drills. 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.

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