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Inga [223]
3 years ago
9

Help ༎ຶ‿༎ຶ i dont get it​

Mathematics
2 answers:
svetoff [14.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

You know the lengths of two sides and the angle between them, so use the Law of Cosines to find the third side.

x^2 = 10.5^2+ 5.4^2 -2(10.5)(5.4)cos20°

x ≈ 5.73 units

lesantik [10]3 years ago
4 0

Answer:

\underline{ \boxed{x = 5.7}}

Step-by-step explanation:

its \: simple \: and \: easy \ \: :  \: if \: you \: apply \: the \: cosine \: rule \to \\  {x}^{2}  =  {(10.5)}^{2}  + {(5.4)}^{2}  - 2(10.5)(5.4) \cos(20)  \\  {x}^{2}  =( 110.25 +29.16 ) - (113.4)( \cos(20))  \\  {x}^{2}  = 139.41 - 106.5611432 \\  {x}^{2}  = 32.8488568 \\ x =  \sqrt{32.8488568}  \\ x = 5.7313922218 \\ \boxed{x = 5.7}

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Bridget purchased 3 pairs of shoes online. The total bill of $126.81 included a $7.50 shipping charge and 6% tax on the total pu
Alika [10]

Answer:

$37.

Step-by-step explanation:

Firstly, let's set the price of each pair of shoe to be x.

Since each pair of shoes costs the same, and there are three pairs, we can set the original price to be 3x.

Now, to apply the shipping charge, all we have to do is add 7.50 to 3x, getting 3x + 7.5.

Next, to apply a 6% tax, we can multiple the whole expression by (100% + 6%), getting (3x + 7.5) \cdot 106%.

Since the whole bill foots to a total of $126.81, we can set the final equation to be:

(3x + 7.5) \cdot 106\% = $126.81

(3x + 7.5) \cdot \frac{106}{100} = $126.81

3x + 7.5 = $126.81 \cdot \frac {50}{53}

3x = $119.6 - 7.5

3x = 112.1

x \approx \$37

Hope this helped!

6 0
3 years ago
What is the solution for x in the equation?
RideAnS [48]
The answer would be B 21/4
4 0
3 years ago
Read 2 more answers
Which are correct representations of the inequality 6x2 3 + 4(2x - 1)? Select three options.
olga2289 [7]

Answer:

Option A, B, and C.

Step-by-step explanation:

Given, 6x ≥ 3 + 4(2x - 1),

Solve to find the correct representations given in the options.

6x ≥ 3 + 4(2x - 1)

Apply distributive property

6x ≥ 3 + 8x - 4 (option B is correct) ✅

Add like terms

6x ≥ -1 + 8x

Add 1 to both sides

6x + 1 ≥ 8x

Subtract 6x from each side

1 ≥ 8x - 6x

1 ≥ 2x (option A is correct) ✅

Divide both sides by 2

1/2 ≥ 2x/2

½ ≥ x

½ ≥ x means all possible values of x are less than 0.5. representing this inequality on a graph, we would have the directed line starting at 0.5 moving towards our left.

This make option C correct.✅

5 0
3 years ago
What is the sun of 185 and h
Ksenya-84 [330]

Answer:

185 + h

Step-by-step explanation:

Question: What is the sum of 185 and h?

Sum means the answer to an addition problem, so we need to add.

185 +  h

This expression can not be simplified any further, so 185 + h is your answer.

Hope this helps :)

3 0
3 years ago
Which of the following is equivalent to log base(25) 125?
Scilla [17]
The solution to the problem is as follows:

x = log (25) (125) 

125 = 25^x 

log 125 = x log 25 
<span>
x = 3/2
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
3 0
3 years ago
Read 2 more answers
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