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
GrogVix [38]
3 years ago
11

What is the value of X?

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer:

x=10

Step-by-step explanation:

We can use the angle bisector theorem to solve this problem

8             12

-------- = ---------

x+4         2x+1

Using cross products

8(2x+1) = 12(x+4)

Distribute

16x+8 = 12x+48

Subtract 12x from each side

16x -12x +8 = 12x-12x +48

4x +8 = 48

Subtract 8 from each side

4x+8-8 = 48-8

4x = 40

4x/4 = 40/4

x=10

You might be interested in
Prove: If C⊂A and D⊂B then D−A⊂B−C
nalin [4]
Let x\in D\setminus A, so that x\in D but x\not\in A. Since D\subset B, it follows that x\in B, and since C\subset A, it follows that x\not\in C, which means x\in B\setminus C.
3 0
3 years ago
How can you solve standard form and intercept form?
laiz [17]

Answer:

The standard form of such an equation is Ax + By + C = 0 or Ax + By = C. When you rearrange this equation to get y by itself on the left side, it takes the form y = mx +b. This is called slope intercept form because m is equal to the slope of the line, and b is the value of y when x = 0, which makes it the y-intercept.

Step-by-step explanation:

8 0
2 years ago
Thirty-three college freshmen were randomly selected for an on-campus survey at their university. The participants' mean GPA was
Ivan

Answer: \pm0.1706

Step-by-step explanation:

Given : Sample size : n= 33

Critical value for significance level of \alpha:0.05 : z_{\alpha/2}= 1.96

Sample mean : \overline{x}=2.5

Standard deviation : \sigma= 0.5

We assume that this is a normal distribution.

Margin of error : E=\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. E=\pm (1.96)\dfrac{0.5}{\sqrt{33}}=\pm0.170596102837\approx\pm0.1706

Hence, the  margin of error is \pm0.1706

7 0
3 years ago
three friends earned more than $200 washing cars. they paid their parents $28 for supplies and divided the rest of money equally
Flura [38]
28x+86≤200 because for supplies they divide the rest of money. that means, 200-28=172 so 172/2=86  now we gonna find the value of x.
 28x+86≤200 i am gonna subtract 86 both of side 28x+86-86≤200-86 to get value of x. 
28x≤114 divide 28 both of side to get value of x so it will be x≤4
7 0
3 years ago
Read 2 more answers
‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ​
Delvig [45]

Answer:

3 pints

Step-by-step explanation:

1 1/2 as a decimal is 1.5

1 quart = 2 pints

1.5 x 2 = 3 pints,

hope i helped you!

6 0
3 years ago
Read 2 more answers
Other questions:
  • How can we tell if a number is divisible by 4?
    9·1 answer
  • Determine the equation for the parabola graphed below.
    9·1 answer
  • Estimate StartRoot 37 EndRoot 37 to the nearest tenth. Then locate StartRoot 37 EndRoot 37 on a number line.
    11·1 answer
  • Anyone please help me ?!?!?!?
    9·1 answer
  • 203710 times 3828392
    15·1 answer
  • Calculate the area of a parallelogram with a base of 3 feet and a height of 1.2 feet
    9·2 answers
  • HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
    9·2 answers
  • Josephine decided to get this Platinum card since she saw the ads touting the "0% A.P.R. Platinum. Sign Up
    5·1 answer
  • Please answer fast its due at the end of class
    6·1 answer
  • The sampling distribution used when making inferences about a single population variance is?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!