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
neonofarm [45]
3 years ago
12

Given RST~ ABC find value of x.

Mathematics
1 answer:
iragen [17]3 years ago
8 0

x + 6 = 2x - 7

subtract x to both sides

6 = x - 7

add 7 to both sides

13 = x

Check:

x + 16

(13) + 6 = 19

2x - 7

2(13) - 7 = 26 - 7 = 19

19=19

You might be interested in
A random sample of 12 graduates of a certain secretarial school typed an average of 79.3 words per minute with a standard deviat
Crazy boy [7]
We will use the following  formula to work out the confidence interval

Upper limit = μ + z* (σ/√n)
Lower limit = μ - z* (σ/√n)

We have
μ = 79.3
σ = 7.8
n = 12
z* is the z-score for 95% confidence level = 1.96

Substitute these into the formula, we have

Upper limit = 79.3 + 1.96 (7.8/√12) = 83.7
Lower limit = 79.3 - 1.96 )7.8/√12) = 74.9
4 0
3 years ago
What is almost always the last step when solving a problem using the Pythagorean Theorem?
Shtirlitz [24]

Answer:

  It depends on the problem

Step-by-step explanation:

Often, you want one or another of the lengths in the right triangle. The Pythagorean theorem gives a relation between the squares of those lengths, so you take the square root as a last step. The last step may be to simplify that square root.

6 0
3 years ago
Identify The domain of the rational function, g(x)= 1/x+3
8_murik_8 [283]

Answer:

The domain is (-∞ , -3) ∪ (-3, ∞) ⇒ D

Step-by-step explanation:

<em>The domain of the rational fraction is t</em><em>he values of x which make the fraction defined</em><em>. That means </em><em>the domain does not contain the values of x which make the denominator equal to 0</em><em>.</em>

∵ g(x) = \frac{1}{x+3}

∴ The denominator = x + 3

→ Equate the denominator by 0

∵ x + 3 = 0

→ Subtract 3 from both sides

∴ x + 3 - 3 = 0 - 3

∴ x = -3

→ That means the domain can not have -3 because it makes the denominator

   equal to 0

∴ The domain is all values of real numbers except x = -3

∴ The domain = {x : x ∈ R, x ≠ -3}

∴ The domain = (-∞ , -3) ∪ (-3, ∞)

4 0
2 years ago
Is algebra.
gulaghasi [49]

Answer:

2(x - 9.46)(x + 2.54)

Step-by-step explanation:

2(x² - 12x + 24)

since there are no factors that multiply to 24 and add to -12 then i used the quadratic formula to get:

6+2\sqrt{3}, 6-2\sqrt{3}

7 0
3 years ago
Megan has 5/6 of a box of raisins. She gave 1/2 of those to her friends. She said she gave 2/6 of the box of raisins what was he
mihalych1998 [28]

Answer:

She actually gave away \frac{5}{12} of the box.

Step-by-step explanation:

i did the math, please  tell me if im wrong tho

8 0
3 years ago
Other questions:
  • A seven digit telephone number is of the form ABC-DEFG. In one particular state, the
    12·1 answer
  • the age in united states has a normal distribution wit a mean 46 years and the standard deviation 13 years .the children are cla
    11·1 answer
  • PLEASEEEEE HELP ME
    8·2 answers
  • 15-8. mixed number fractious
    10·1 answer
  • Which algebraic expression is equivalent to the expression below?
    8·2 answers
  • The amount of money invested in a certain account increases according to the following function, where is the initial amount of
    7·1 answer
  • Find the distance between the points (-4,-2) and (3,3)
    6·2 answers
  • Solve x2 + 6x + 7 = 0.
    12·1 answer
  • Pls help asap its due today i will be really gratefull
    9·2 answers
  • Hailey's car used 4 gallons to travel 172 miles. At what rate does the car use gas, in miles per gallon?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!