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iogann1982 [59]
4 years ago
9

What is the value for x?

Mathematics
1 answer:
expeople1 [14]4 years ago
4 0

Answer:

X=8

Step-by-step explanation:

AB and AC are the same length so angles a and c are the same

180=a+b+c

180=69+b+69

b=42

42=5x+2

40=5x

8=x

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Solve the equation s+2.8=6.59
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S=3.79. subtract 2.8 from 6.59 to get s
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A pitcher of water contains 1/4 liters of water. The water is poured equally into 5 glasses.
vladimir2022 [97]

Answer:

a. 1/20 liters in each glass.

b. 50 ml in each glass.

Step-by-step explanation:

a. To find how many liters are in each glass, you have to divide the 1/4 liters by 5 glasses, because the water is poured equally.

\frac{1}{4}\:\div \frac{5}{1}  

Using the division properties of fractions:

\frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}  

\frac{1}{4}\times \frac{1}{5} =\frac{1\times \:1}{4\times \:5} =\frac{1}{20}  

b. Use the rule of three to convert from liters to milliliters.

  • 1 l = 1000 ml
  • 1/20 l = x ml

Now, multiply 1/20 l by 1000 ml and divide by 1 l to obtain x.

x =\frac{ \frac{1}{20}\times 1000 }{1} = \frac{1000}{20} = 50

4 0
3 years ago
Use cosine to find the missing value round to 2 decimal places #trigonometry
Naddika [18.5K]

Answer:

1. 17.27 cm

2. 19.32 cm

3. 24.07°

4. 36.87°

Step-by-step explanation:

1. Determination of the value of x.

Angle θ = 46°

Adjacent = 12 cm

Hypothenus = x

Using cosine ratio, the value of x can be obtained as follow:

Cos θ = Adjacent /Hypothenus

Cos 46 = 12/x

Cross multiply

x × Cos 46 = 12

Divide both side by Cos 46

x = 12/Cos 46

x = 17.27 cm

2. Determination of the value of x.

Angle θ = 42°

Adjacent = x

Hypothenus = 26 cm

Using cosine ratio, the value of x can be obtained as follow:

Cos θ = Adjacent /Hypothenus

Cos 42 = x/26

Cross multiply

x = 26 × Cos 42

x = 19.32 cm

3. Determination of angle θ

Adjacent = 21 cm

Hypothenus = 23 cm

Angle θ =?

Using cosine ratio, the value of θ can be obtained as follow:

Cos θ = Adjacent /Hypothenus

Cos θ = 21/23

Take the inverse of Cos

θ = Cos¯¹(21/23)

θ = 24.07°

4. Determination of angle θ

Adjacent = 12 cm

Hypothenus = 15cm

Angle θ =?

Using cosine ratio, the value of θ can be obtained as follow:

Cos θ = Adjacent /Hypothenus

Cos θ = 12/15

Take the inverse of Cos

θ = Cos¯¹(12/15)

θ = 36.87°

8 0
3 years ago
What is 12 inches in length
hjlf

Here is ur answer

30.48 centimeters

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