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alexdok [17]
3 years ago
6

Johnni guessed on all 8 questions of a multiple-choice quiz. Each question has 4 answer choices. What is the probability that sh

e got exactly 3 questions correct? Round the answer to the nearest thousandth.
A. 0.004
B. 0.208
C. 0.422
D. 0.792
Mathematics
1 answer:
Ne4ueva [31]3 years ago
3 0

Answer: The answer is B. 0.208.

Step-by-step explanation: Just took the test on e2020

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Chris and lisa went shopping and spent a total of $25.50. Lisa spent $13.50 more than chris spent. Hiw much did lisa spend?
baherus [9]

Answer:

12$

Step-by-step explanation:

$25.50-$13.50=$12

5 0
3 years ago
"Rebecca walks 100 feet in a straight line. She then turns 20 degrees to her left and walks another 100 feet, and then turns 20
iragen [17]

Answer:

1,800 ft

Step-by-step explanation:

Rebecca will walk in the pattern of a regular polygon with 'n' sides and internal angles of 160 degrees (180 at a straight line - 20 degrees from each turn).

The equation that describes the internal angle of a regular polygon is:

A = \frac{(n-2)*180}{n}

For A = 160 degrees:

160n=(n-2)*180\\(180-160)n=360\\n=18\ sides

If each side is 100 ft long, the total distance that Rebecca has walked is:

d = 18*100\\d=1,800\ ft

She walked 1,800 ft.

5 0
3 years ago
Which of the following are true of F(x)?
Mama L [17]
You forgot to put the options and the rest of the equation
4 0
3 years ago
A tutor chargers $30 for 2 hours.uae ratio table to determine how much she charges for 5 hours
Daniel [21]
15/hr 15x5 = 75 dollars. you can build the ratio table using the rate of change.
4 0
3 years ago
Read 2 more answers
Six pyramids are shown inside of a cube. The height of the cube is h units. Six identical square pyramids can fill the same volu
Amiraneli [1.4K]

The height of squared pyramid is \frac{1}{3}h unit.

<h3>What is the volume of a cube?</h3>

A cube is a solid three-dimensional object with six square faces or sides, three of which meet at each vertex. One of the five Platonic solids, the cube is the only regular hexahedron. It contains 8 vertices, 6 faces, and 12 edges.

Volume of cube = (side)^3 \ unit^3

Given the height of cube is h unit.

Volume of cube is h^3 \ unit^3

Let the height of squared pyramid is x unit

Volume of squared pyramid is \frac{1}{3} h^{2} \times x \ unit^3

According to the question, we have

Volume of cube = 6 \times volume of squared pyramid

\Rightarrow h^3=6 \times \frac{1}{3}h^2 \times x\\\Rightarrow h^3=2 \ h^2 \times x\\\Rightarrow h=2x\\\Rightarrow x= \frac{1}{2}h

Therefore, the height of squared pyramid is \frac{1}{3}h unit.

To learn more about squared pyramid from the given link

brainly.com/question/27476449

#SPJ4

8 0
2 years ago
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