1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SpyIntel [72]
2 years ago
11

Determine the length of side QR in the following triangle

Mathematics
1 answer:
Jobisdone [24]2 years ago
3 0

The length of the side QR in the task content can be determined as; 12.22cm.

<h3>What is the length of the third side QR?</h3>

It follows from the task content that 2 lengths and one included angle are given in the task content. It therefore follows that the length of side QR can be evaluated by the cosine rule as follows;

QR² = 13² + 4² - (2×4×13×cos70)

QR = √149.4

QR = 12.22cm

Read more on cosine rule;

brainly.com/question/23720007

#SPJ1

You might be interested in
Solve for x, and refer to the attached image.
AVprozaik [17]

Answer:

x=8

Step-by-step explanation:

7+5x

so basically what you have to do is take the 7 and subtract from both sides

so like this: 7-7 is 0 so that cancels then 47-7 is 40

then you take 5x and divide 40 by 5

so x=8

hope this helped!

4 0
3 years ago
45x + 10
igor_vitrenko [27]
D because when you distribute the 5 into both numbers your product becomes 45x + 10
4 0
3 years ago
Read 2 more answers
Choose yes or no to tell whether the expression represents a 20% discount off the price of an item that originally costs d dolla
tester [92]

Answer:

Option A and C is correct.

Step-by-step explanation:

Discount is defined as a reduced price on something being sold or at a price lower than that item is normally sold for.

For a 20% discount,

Given:

Initial prices = $ d

Discounted price = % discount × original/initial cost

= 20/100 × d

= 0.2 × d

Selling price = original cost - discounted price

= d - 0.2d

= 0.8 × d

= 0.8d

8 0
3 years ago
What is the value of x? 6x−2(x 4)=12
jonny [76]

Observation : No two such factors can be found !! 
Conclusion : Trinomial can not be factored

<span>Equation at the end of step  2  :</span>  6x2 - x - 4 = 0 <span>((2•3x2) - x) - 4 = 0 </span><span>Step  2  :</span>Trying to factor by splitting the middle term

<span> 2.1 </span>    Factoring <span> 6x2-x-4</span> 

The first term is, <span> <span>6x2</span> </span> its coefficient is <span> 6 </span>.
The middle term is, <span> -x </span> its coefficient is <span> -1 </span>.
The last term, "the constant", is <span> -4 </span>

Step-1 : Multiply the coefficient of the first term by the constant <span> <span> 6</span> • -4 = -24</span> 

Step-2 : Find two factors of  -24  whose sum equals the coefficient of the middle term, which is  <span> -1 </span>.

<span><span>     -24   +   1   =   -23</span><span>     -12   +   2   =   -10</span><span>     -8   +   3   =   -5</span><span>     -6   +   4   =   -2</span><span>     -4   +   6   =   2</span><span>     -3   +   8   =   5</span><span>     -2   +   12   =   10</span><span>     -1   +   24   =   23
</span></span>

Observation : No two such factors can be found !! 
Conclusion : Trinomial can not be factored

<span>Equation at the end of step  2  :</span><span> 6x2 - x - 4 = 0 </span>

3 0
3 years ago
Which is a factor of: 2x^2-4x-6
Scilla [17]
2 I think it is not sure hope it helps you out
4 0
3 years ago
Other questions:
  • Kyle and his brother Joel leave a rest stop at the same time traveling in opposite directions. After traveling for 6 hours, they
    15·2 answers
  • 79. Revenue. The revenue (in dollars) from the sale of x infant car seats is given by R1x2 = 60x - 0.025x2 0 ... X ... 2,400 (A)
    7·1 answer
  • Solve for y. 2.4x -1.5y=3
    6·2 answers
  • A coin is flipped twice. What is the probability that it will come up once heads and once tails
    12·1 answer
  • A bakery used 475 pounds of apples to make 1000 apple tarts. each jar contains the same amount of apples. how many pounds of app
    8·2 answers
  • Need help asap pls!!!
    6·1 answer
  • What is the two ratios equivalent to 3 to 4
    7·1 answer
  • 1. Find the area: 26 cm 39 cm<br><br>I need help​
    8·1 answer
  • What are the x-intercepts of the parabola of (-3.5,0) and (4.1,0)
    9·1 answer
  • (140-x)/(7)+70 = 120. Please answer correctly.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!