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antoniya [11.8K]
3 years ago
15

Please help need to get to 80%

Mathematics
1 answer:
Shalnov [3]3 years ago
3 0

Answer:

\frac{1}{6}

Step-by-step explanation:

First, start by converting 4 feet to inches. Note that 1 foot = 12 inches.

Set up a unit converter:

4\ ft(\frac{12\ in}{1\ ft})

The ft cancel out leaving us with:

4*12\ in=48\ in

Now, we can set up a scale factor...

\frac{drawing}{real\ length}=\frac{8}{48}=\frac{1}{6}

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grandymaker [24]
2/27 I took the test and I know it is correct
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3 years ago
Help with trigonometry.<br> (Ignore the writing I still need all of them)
Artist 52 [7]

Applying the trigonometry ratio and rationalization, the missing lengths are:

1. x = 12/√3; y = 2√3

2. x = 5√2; y = 5√2

3. b = 24

4. 4√3

5. 5√3

<h3>What are the Trigonometry Ratio?</h3>

The trigonometry ratios are represented as follow:

  • SOH is sin ∅ = opp/hyp
  • CAH is cos ∅ = adj/hyp
  • TOA is tan ∅ = opp/adj.

1. To find x, apply SOH:

opp = 6

hyp = x

adj = y

∅ = 60°

Equation:

sin 60 = 6/x

x = 6/sin 60

x = 6/√3/2 (sin 60 = √3/2)

x = 6 × 2/√3

x = 12/√3

Rationalize

x = 12/√3 × √3 /√3

x = 12√3/3

x = 4√3

To find y, apply TOA:

tan 60 = 6/y

y = 6/tan 60

y = 6/√3 (tan 60 = √3)

Rationalize

y = 6/√3 × √3 /√3

y = 6√3 / 3

y = 2√3

2. To find x, apply SOH:

opp = x

hyp = 10

adj = y

∅ = 45°

Equation:

sin 45 = x/10

x = (10)(sin 45)

x = 10 × 1/√2 (sin 45 = 1/√2)

x = 10/√2

Rationalize

x = 10/√2 × √2 /√2

x = 10√2/2

x = 5√2

To find y, apply CAH:

cos 45 = y/10

y = (10)(cos 45)

y = 10 × 1/√2 (cos 45 = 1/√2)

y = 10/√2

Rationalize

y = 10/√2 × √2 /√2

y = 10√2/2

y = 5√2

3. To find b, apply Pythagorean theorem:

b = √(25² - 7²)

b = 24

4. 12/√3

Rationalize

12/√3 × √3 /√3

12√3/3

4√3

5. 15/√3 × √3 /√3

15√3 /3

5√3

Learn more about trigonometry ratios on:

brainly.com/question/10417664

3 0
3 years ago
PLEASE HELP ASAP WILL GIVE BRAINLIEST! :) <br><br><br>sorry for the quality.​
ss7ja [257]

Answer:

y=3x—1

Step-by-step explanation:

The line contains point (2,5)

so if we put x=2 in the equation, that'll give us y=5

only option that contains point (2,5) is:

y = 3x  - 1 \\ (5) = 3(2) - 1 \\ 5 = 5 \: true

3 0
3 years ago
Read 2 more answers
Is 3x+5 congruent to 5x-1
Licemer1 [7]
Yes it is congruent to5x-1
7 0
3 years ago
Helpppp in 8 asap plzz
arsen [322]
6 2 ounces, 4 3 ounces, 3 4 ounces, and etc. There's many more ways like for an example: 2 2 ounces plus 2 4 ounces, which will equal 12 ounces
7 0
3 years ago
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