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
denis23 [38]
3 years ago
13

05.01 MC)

Mathematics
1 answer:
tatyana61 [14]3 years ago
3 0

Answer:

2x + y = -5 (which is Answer 1).

Step-by-step explanation:

The possible answer choices are all versions of the standard equation of a straight line:   Ax + By + C = 0.  If A and B are both positive, as they are here, then the slope is negative and has the form m = -A/B.  Only the first answer choice passes here:  with +2x and +1y, the slope is -2.  This automatically eliminates the other possibilities.

Looking at the first answer choice, we see that A must be 2 and B must be 1

so that the slope is m = -2.    Writing out this equation:  Ax + By + C = 0.

Replace A with 2 and B with 1:  2x + y + C = 0.

Finally, replace x with -1 and y with -3:  2(-1) + (-3) + C = 0.

Solving this for C, we get   -2 - 3 + C = 0, or -5 + C = 0, or C = 5.

We end up with 2x + y = -5 (which is Answer 1).

You might be interested in
I need help on photo above please!!!
Leya [2.2K]
Option two is the correct answer
Hope this helps :)
4 0
3 years ago
Find the value of x. No calculator needed. Leave the square root as a part of your answer.
aleksklad [387]

Answer:

5/V2=2.5×V2

Step-by-step explanation:

This is an isoscelle right triangle:

x²+x²=5²

2x²=5²

x=5/V2=5×V2/2=2.5×V2

where V2=sqrt(2)

4 0
3 years ago
Solve for W.<br> 2=LW<br> Nnnnnnnnnnnnnnnnn
Anna11 [10]

Answer: W = 2/L

Isolate the variable by dividing each side by factors that don't contain the variable.

7 0
3 years ago
Read 2 more answers
What is the value of x?<br> 2 units<br> 3 units<br> 5 units<br> 8 units
irinina [24]

Answer:B

Step-by-step explanation:

5 0
3 years ago
What is the true solution to the equation below? 2 In e^In2x -In e^In10x = In 30
stealth61 [152]

The\ domain.\\D:x\in\mathbb{R^+}\\\\2\ln e^{\ln2x}-\ln e^{\ln10x}=\ln30\ \ \ |use\ \log_ab^n=n\log_ab\\\\2\ln2x\ln e-\ln10x\ln e=\ln30\ \ \ \ |use\ \log_aa=1\\\\2\ln2x-\ln10x=\ln30\ \ \ |use\ n\log_ab^n=\log_ab^n\\\\\ln(2x)^2-\ln10x=\ln30\\\\\ln4x^2-\ln10x=\ln30\ \ \ |use\ \log_ab-\log_ac=\log_a\dfrac{b}{c}\\\\\ln\dfrac{4x^2}{10x}=\ln30\\\\\ln\dfrac{2x}{5}=\ln30\iff\dfrac{2x}{5}=30\ \ \ \ |\cdot5\\\\2x=150\ \ \ \ |:2\\\\x=75\in D

Answer: x = 75

8 0
3 years ago
Read 2 more answers
Other questions:
  • 2 is a solution for <br><br> True or False
    9·2 answers
  • Nathan is playing golf at a golf course. The height of the golf ball from the ground, in feet, x seconds after the ball is hit i
    11·1 answer
  • The Ruiz family is exchanging euros for US dollars. The exchange rate is 1 euro equals 1.35261 USD. Since the Ruiz family knows
    15·1 answer
  • What is the solution to the following equation?<br> 5(2x - 6) + 20 = 10<br> 09<br> 05<br> 03<br> O2
    6·2 answers
  • Spam: A researcher reported that 71.8% of all email sent in a recent month was spam. A system manager at a large corporation bel
    15·2 answers
  • PLEASE HELP! FOR 10 POINTS. CLASSIFY THE TRIANGLE ON ANGLE AND SIDE LENGTH, WHAT IS THE ANSWER AND HOW CAN I SOLVE IT? SHOW UR W
    10·1 answer
  • Joshua buys a $6000 car on the following terms:
    6·1 answer
  • Complete the sentence.<br><br> A ___ is an amount of decrease in price.
    11·2 answers
  • Hello good morning can you please help please in this problem?
    7·1 answer
  • Find the value of x for which l||m
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!