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3 years ago

Find the area of this triangle. round to the nearest tenth.

Mathematics

2 answers:

Ksenya-84 [330]3 years ago

5 0

1/2 ab Sin C

1/2 (15) (9) Sin (110)

63.429...

(rounded = 63.4 ft^2)

jok3333 [9.3K]3 years ago

5 0

Answer:

Area of the triangle : 63 .4 square feet .

Step-by-step explanation:

Given : Triangle .

To find : Find the area of this triangle. round to the nearest tenth.

Solution : We have given

A triangle with two sides 9 ft , 15 ft an angle = 110 degree.

Area of the triangle : $\frac{1}{2} side1 * side 2 * sin(c)$ .

Plug the values

Area of the triangle : $\frac{1}{2} * 9 * 15 * sin(110)$ .

Area of the triangle : $\frac{1}{2} * 9 * 15 * 0.939$ .

Area of the triangle : 63.3825 square feet .

Area of the triangle : 63 .4 square feet .

Therefore, Area of the triangle : 63 .4 square feet .

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Step-by-step explanation:

4.35 - 5.5= -1.15

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2 years ago

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erastovalidia [21]

Answer:

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Step-by-step explanation:

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Using binomial theorem, (a - b)2 = a2 - 2ab + b2 to expand (x - 3)2.

0 = 4(x2 - 6x + 9 ) - 16.

Using distributive property to multiply 4 by x2 - 6x + 9.

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4x2 - 24x + 20 = 0.

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To solve the equation, factor and rewrite as x2 + ax + bx + 5

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Rewriting x2 - 6x + 5 as

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2 years ago

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PLEASE HELP!!! 100 points (make sure to show work and be correct)

tresset_1 [31]

Answer:

1. B and E

2. B

Step-by-step explanation:

1. Looking at the line, let's try to establish a relationship between x and y. Take one point (12, 80) and divide y by x:

80 / 12 = 20 / 3

Similarly, if we take (3, 20), we get the same relationship:

20 / 3 = 20 / 3

That means we need to select an ordered pair that follows this relationship:

A. (14, 100) ⇒ 100 / 14 = 50 / 7 --- wrong

B. (15, 100) ⇒ 100 / 15 = 20 / 3 --- correct

C. (16, 100) ⇒ 100 / 16 = 25 / 4 --- wrong

D. (16, 120) ⇒ 120 / 16 = 15 / 2 --- wrong

E. (18, 120) ⇒ 120 / 18 = 20 / 3 --- correct

The possible answers are B and E.

2. Let's say Maya sells b bracelets. That means that she makes 3 * b = 3b dollars for these b bracelets. Look at the answer choices to see which one will have 3 in the x-coordinate and a multiple of 3 in the y-coordinate:

A. (3, 5) ⇒ 5 isn't a multiple of 3, so wrong.

B. (3, 9) ⇒ 3 is the x-coordinate and 9 = 3 * 3, so this is correct.

C. (3, 7) ⇒ 7 isn't a multiple of 3, so wrong.

D. (2, 3) ⇒ 3 isn't even the x-coordinate, so wrong.

The correct answer is thus B.

5 0

2 years ago

Read 2 more answers

Find the area of this triangle. round to the nearest tenth.​

Find the area of this triangle. round to the nearest tenth.