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3 years ago

2 Points

Mathematics

1 answer:

Viefleur [7K]3 years ago

7 0

The d . （x+2）（-7x+9）

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What is 0.5 repeating in fraction form?

aev [14]

.555555555555555555 =5/9

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3 years ago

A student determined that the area of the segment of c shown above is Asegment = 137.71 ft2. The student's work is shown below.

ivolga24 [154]

Answer:

Option D. The student did not use the correct formula to calculate the area of the segment

Step-by-step explanation:

step 1

Find the area of the isosceles triangle

Applying the law of sines

$A=\frac{1}{2}(12^{2})sin(60\°)=62.35\ ft^{2}$

step 2

Find the area of the sector

The area of the sector is 1/6 of the area of the circle

$A=\pi r^{2}/6$

substitute the value

$A=(3.14)(12)^{2}/6=75.36\ ft^{2}$

step 3

Find the area of the segment

The area of the segment is equal to the area of sector minus the area of triangle

$A=75.36\ ft^{2}-62.35\ ft^{2}=13.01\ ft^{2}$

therefore

The student did not use the correct formula to calculate the area of the segment

4 0

3 years ago

kevin built a deck in his backyard. The length of the deck was 5x+1 units and the width of the deck was 4x-1 units. Write and si

amm1812

Answer:

Perimeter =

$2(length + width) \\ 2(5x + 1 + 4x - 1) \\ 2(5x + 4x + 1 - 1) \\ 2(9x ) \\ 9 \times 2 \\ = 18$

7 0

3 years ago

Make a factor tree for 16

jonny [76]

16
∧
4 X 4
∧ ∧
2 X 2 2 X 2

The answer is 2 x 2 x 2 x 2 or 2⁴ This would have worked as well had you broken

down 16 into 8 x 2. You would get the same answer as the 8 would break down into 4 x 2 and the 4 would break down into 2 x 2.

6 0

3 years ago

Assume that there are 6 types of upholstery, 2 types of wood, and 2 designs to choose from. Of the designs, 1 design permits bot

aksik [14]

Answer:

Step-by-step explanation:

First design: upholstery and wood

Second design: upholstery

For the first design the possible chairs we can make are 6 with the first type of wood and 6 with the second one. Therefore we sum both results=12.

For the second the possible chairs we can make are 6.

The total of possibles chairs we can make are 6 + 12 = 18.

8 0

4 years ago