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
SSSSS [86.1K]
2 years ago
12

HURRY PLEASE!! What is the solution to the system of equations?

Mathematics
1 answer:
NikAS [45]2 years ago
5 0

Answer:

(9/2, -1/2)

Step-by-step explanation:

You might be interested in
An item costs $300 before tax, and the sales tax is $9.90 . Find the sales tax rate. Write your answer as a percentage.
Step2247 [10]

Answer:

3.33%

Step-by-step explanation:

9.90/300=0.033

8 0
2 years ago
Which equation can be used to show the relationship between the circumference C and a diameter D of a circle
Firlakuza [10]
The diameter is the distance from one side of a circle to the other, if you cross through the center. The circumference is the distance around the circle. The circumference is equal to two time pi time the radius (C=2*pi*r)
3 0
3 years ago
For what values of θ on the polar curve r=θ, with 0≤θ≤2π , are the tangent lines horizontal? Vertical?
Bond [772]
Given that r=\theta, then r'=1

The slope of a tangent line in the polar coordinate is given by:

m= \frac{r'\sin\theta+r\cos\theta}{r'\cos\theta-r\sin\theta}

Thus, we have:

m= \frac{\sin\theta+\theta\cos\theta}{\cos\theta-\theta\sin\theta}



Part A:

For horizontal tangent lines, m = 0.

Thus, we have:

\sin\theta+\theta\cos\theta=0 \\  \\ \theta\cos\theta=-\sin\theta \\  \\ \theta=- \frac{\sin\theta}{\cos\theta} =-\tan\theta

Therefore, the <span>values of θ on the polar curve r = θ, with 0 ≤ θ ≤ 2π, such that the tangent lines are horizontal are:

</span><span>θ = 0

</span>θ = <span>2.02875783811043
</span>
θ = <span>4.91318043943488



Part B:

For vertical tangent lines, \frac{1}{m} =0

Thus, we have:

\cos\theta-\theta\sin\theta=0 \\  \\ \Rightarrow\theta\sin\theta=\cos\theta \\  \\ \Rightarrow\theta= \frac{\cos\theta}{\sin\theta} =\sec\theta

</span>Therefore, the <span>values of θ on the polar curve r = θ, with 0 ≤ θ ≤ 2π, such that the tangent lines are vertical are:

</span>θ = <span>4.91718592528713</span>
3 0
3 years ago
Will mark brainliest please show work
SVEN [57.7K]

Answer:

5/4

Step-by-step explanation:

7 0
3 years ago
Please Help I Don't Undertand.
frozen [14]

If triangles AMN and ABC are similar, then

AM/AB = AN/AC

or

AM/(AM + MB) = AN/(AN + NC)

Check if this is true:

AM/AB = 21/(21 + 9) = 21/30 = 7/10

AN/AC = 14/(14 + 6) = 14/20 = 7/10

The angle at vertex A is common to both of the triangles.

Then by the side-angle-side (SAS) similarity theorem, the triangles are indeed similar.

4 0
1 year ago
Other questions:
  • What is the solution to the absolute value inequality?
    5·1 answer
  • Brittney made a proportional copy of a figure by multiplying each side length by 1/4. Drag numbers to complete the table
    14·2 answers
  • Solve equation a+6a-9=30
    5·1 answer
  • Find the distance between Rockville and San Jose if they are in apart on a map with a scale of 2in:
    14·1 answer
  • Simplify the following expression 6X2 plus 8X -3 minus 3X2-6
    14·1 answer
  • Which of the following best represents the solution to the pair of equations below?
    15·1 answer
  • What is the class boundary between the first and second classes?
    9·1 answer
  • Determine whether the conclusion is valid. If not, identify the additional information needed to make it valid.
    6·2 answers
  • WILL MARK BRAINLEST TO THE CORRECT ANSWER (55 POINTS!!!)
    15·1 answer
  • What is 30 percent of 210​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!