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3 years ago

Find the areas of the trapezoid Due soon! I WILL GIVE BRAINLIEST!! WORTH 46 points (92 total)

Mathematics

2 answers:

posledela3 years ago

7 0

Answer:

7.5 sq units

Step-by-step explanation:

Step2247 [10]3 years ago

6 0

Answer:

Solution given

side 1:1 units

side 2=4 units

height =3 units

we have

Area of trapezoid =½*height(side1+side2)

=½*3(1+4)=15/2

areas of the trapezoid is 15/2 or 7.5 square units.

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Answer:

5.7 meters

Step-by-step explanation:

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7 is the hypotenuse and 4 is the side length

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3 years ago

Scott is on his school's academic team. On average, it takes Scott 4 minutes, with a standard deviation of 0.25 minutes, to solv

uysha [10]

Answer:

15.87% is the chance that Scott takes more than 4.25 minutes to solve a problem at an academic bowl.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 4 minutes

Standard Deviation, σ = 0.25 minutes

We standardize the given data.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(more than 4.25 minutes to solve a problem)

$P( x > 4.25) = P( z > \displaystyle\frac{4.25 - 4}{0.25}) = P(z > 1)$

$= 1 - P(z \leq 1)$

Calculation the value from standard normal z table, we have,

$P(x > 4.25) = 1 - 0.8413 = 0.1587 = 15.87\%$

Thus,15.87% is the chance that Scott takes more than 4.25 minutes to solve a problem at an academic bowl.

8 0

3 years ago