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3 years ago

1/2 9/10 4/5 which on e go first to put in lowest number on the left

2 answers:

6 0

Since 1/2 = .5, 4/5 = .8, and 9/10 = .9. I found these out by dividing the numerator by the denominator. Now that we have them in decimal form, we can order them from least to greatest: 1/2, 4/5, and 9/10. You can also figure out how to order them from least to greatest by finding a common denominator, like 10. 1/2 = 5/10, 4/5 = 8/10, and 9/10 stays the same. (Looking back to the first example, if you don’t have a calculator you can do it this way to find the decimal forms) then you can order them from least to greatest!

Hope one of these meathods helped you, and happy holidays!

dedylja [7]3 years ago

4 0

1/2 = 5/10
4/5 = 8/10

Least to Greatest
5/10, 8/10, 9/10

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-4(-3x - 8) - 4x + 8 = -8x + 40

Andrew [12]

First we expand and combine the terms on the left side. This gives us

12x + 32 -4x + 8 = -8x + 40

8x + 40 = -8x + 40. Because the two sides cancel each other out when you try and bring all the x to one side, the answer is x = 0.

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3 years ago

Find the surface area of a right cone with diameter 30 in. and slant height 8 in.Your answerEXTRA CREDIT: Find the surface area

Anon25 [30]

Answer:

Surface area = 1084 in²

Step-by-step explanation:

To find the surface area of a right cone, we can use the following formula:

$\boxed{{Area = \pi r^2 + \pi rl}}$ ,

where:

• r = radius

• l = slant height.

In the question, we are told that the diameter of the cone is 30 in. Therefore its radius is (30 ÷ 2 = ) 15 in. We are also told that its height is 8 in.

Using this information and the formula above, we can calculate the surface area of the cone:

Surface area = $\pi \times (15)^2 + \pi \times 15 \times 8$

= $345 \pi$

$\approx$ 1084 in²

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2 years ago

Round to the nearest 10th if necessary

Lana71 [14]

Answer:

38.7°.

Step-by-step explanation:

from trigonometrical ratios

SO TO CA

H A H.

Tan°=opposite/adjacent.

Tan°=48/60

Tan°=0.8000

°= Tan-1(0.8000)

°=38.65°≈38.7°

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3 years ago

Analyze the diagram below and complete the instructions to follow. Find a, b and c

Feliz [49]

Answer/Step-by-step explanation:

✔️Using trigonometric ratio, find b:

Reference angle = 45

opposite = 8

Hypotenuse = b

Thus,

Sin(45) = 8/b

b = 8/sin(45)

b = 8/(1/√2) (sin 45 = 1/√2)

b = 8 × √2/1

b = 8√2

✔️Find a using trigonometric ratio:

Reference angle = 60°

Hypotenuse = b = 8√2

Adjacent = a

Therefore,

Cos(60) = a/8√2

8√2*cos(60) = a

8√2*½ = a

4√2 = a

a = 4√2

✔️Find c using Pythagorean Theorem:

c² = b² - a²

c² = (8√2)² - (4√2)²

c² = 128 - 32

c² = 96

c = √96

c = √(16*6)

c = 4√6

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3 years ago

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larisa86 [58]

Answer: x= -9 y= 3

Step-by-step explanation:

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3 years ago