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Sedbober
4 days ago
14

How to solve 67.8 × 0.45

Mathematics
2 answers:
Leona [9.2K]3 days ago
7 0
The answer is 30.51,
Zina [9.1K]3 days ago
3 0
I believe the answer is 30.51, but you should verify by dividing.
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At the warm-up event for Oscar’s All Star Hot Dog Eating Contest, Al ate one hot dog. Bob then showed him up by eating three hot
Inessa [9000]

Answer: Zeno consumed 51 hot dogs.

The total number of hot dogs consumed was 676.

Step-by-step explanation:

Al started by eating one hot dog. Bob then outperformed him by devouring three hot dogs. Carl, not wanting to fall behind, ate five hot dogs. This pattern continued, with each participant consuming two hot dogs more than the previous one. This indicates that the quantity of hot dogs eaten by each contestant followed an arithmetic sequence.

The formula for finding the nth term in an arithmetic series is given by

Tn = a + (n - 1)d

Where

a denotes the first term in the sequence.

d signifies the common difference.

n stands for the total terms in the sequence.

<pBased on the details provided,

a = 1 hot dog

d = 3 - 1 = 2 hot dogs

We aim to find how many hot dogs the 26th contestant, T26, consumed. Thus,

T26 = 1 + (26 - 1)2 = 1 + 50

T26 = 51 hot dogs

The formula to calculate the sum of n terms in an arithmetic sequence is

Sn = n/2[2a + (n - 1)d]

Hence, to find the total number of hot dogs consumed by 26 contestants, S26 is calculated as

S26 = 26/2[2 × 1 + (26 - 1)2]

S26 = 13[2 + 50]

S26 = 13 × 52 = 676 hot dogs

5 0
1 month ago
Given the function f(x) = −5x2 − x + 20, find f(3). −28 −13 62 64
Leona [9271]

Answer:

Option (a) is the correct choice.

The result of the given function f(x)=-5x^2-x+20 at x = 3 is -28

Detailed explanation:

Provided: Function f(x)=-5x^2-x+20

We need to calculate the function's value at x = 3

Evaluate the specified function f(x)=-5x^2-x+20

As we are required to find the function's value at x = 3

Substitute x = 3 into the function f(x)

f(3)=-5(3)^2-(3)+20

Upon simplification, we get

f(x)=-45-3+20=-28

Thus, the value of the given function f(x)=-5x^2-x+20 at x = 3 is -28

5 0
1 day ago
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Which of the following are exterior angles? Check all that apply.
Svet_ta [9500]

Answer:

A. C. E. F.

Which correspond to 2, 3, 5, and 6.

Step-by-step explanation:

Within geometry, exterior angles are defined as those angles formed between any side of a polygon and the extension of an adjacent side, as demonstrated in the diagram.

Observing the figure, angles 2 and 3 arise from a side of the triangle and a line extended from the following side. Likewise, angles 5 and 6 are created similarly. Thus, these four angles are classified as exterior angles.

8 0
1 month ago
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Scores on an exam follow an approximately normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. what i
AnnZ [9099]
The highest 5% of scores corresponds to the 95th percentile, meaning the cutoff score k is defined as

\mathbb P(X

When transformed into the standard normal distribution,

\mathbb P(X

A cumulative probability of 95% corresponds to a z-score of approximately k^*=1.6449, indicating that the cutoff score is likely around

1.6449=\dfrac{k-76.4}{6.1}\implies k\approx86.4
5 0
1 month ago
2.161616 as fraction and as a mixed number
babunello [8412]
As a fraction, 2.161616 is represented as 2 161616/1000000, and when simplified, it becomes 2 10101/62500.
3 0
1 month ago
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