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
frozen [14]
3 years ago
6

The equation y=-7x-5 and the solution of (-2,9)

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
8 0
Y=-7x-5 
9=-7(-2)-5
9=14-5
9=9
Please mark the brainliest, if you think i helped!
You might be interested in
PLEASE HELP ME!!!!!!!!!!!!!!!!!!
Varvara68 [4.7K]

Answer:

5

Step-by-step explanation:

These are functions, the number in the parentheses shows you what number you will replace x with

If f(x) = x + 3, then f(-1) is -1 + 3

So, -1 + 3 = 2. g(2) = 2(2) + 1 = 4 + 1 = 5

Hope this helps friend.

5 0
2 years ago
What is 5.48 million is scientific notation
Lyrx [107]

Answer:

5,480,000 = 5.48 x 10^6



5 0
3 years ago
Read 2 more answers
Gina looks at the architectural plan of a four-walled room in which the walls meet each other at right angles. The length of one
soldier1979 [14.2K]

Answer:

For a better understanding of the solution provided here, please find the diagram attached.

In the diagram, ABCD is the room.

AC is the diagonal whose length is 18.79 inches.

The length of wall AB is 17 inches.

From the given information, we have to determine the length of the BC, which is depicted a , because for the room to be a square, the length of the wall AB must be equal to the length of the wall BC.

Thus, inches

and hence, the given room is not a square.

Step-by-step explanation:

6 0
2 years ago
Will give brainiest & other. Help please!
alina1380 [7]

Answer:

y= 1x

Step-by-step explanation:

6 0
2 years ago
Find the laplace transform of f(t) = cosh kt = (e kt + e −kt)/2
iren2701 [21]
Hello there, hope I can help!

I assume you mean L\left\{\frac{ekt+e-kt}{2}\right\}
With that, let's begin

\frac{ekt+e-kt}{2}=\frac{ekt}{2}+\frac{e}{2}-\frac{kt}{2} \ \textgreater \  L\left\{\frac{ekt}{2}-\frac{kt}{2}+\frac{e}{2}\right\}

\mathrm{Use\:the\:linearity\:property\:of\:Laplace\:Transform}
\mathrm{For\:functions\:}f\left(t\right),\:g\left(t\right)\mathrm{\:and\:constants\:}a,\:b
L\left\{a\cdot f\left(t\right)+b\cdot g\left(t\right)\right\}=a\cdot L\left\{f\left(t\right)\right\}+b\cdot L\left\{g\left(t\right)\right\}
\frac{ek}{2}L\left\{t\right\}+L\left\{\frac{e}{2}\right\}-\frac{k}{2}L\left\{t\right\}

L\left\{t\right\} \ \textgreater \  \mathrm{Use\:Laplace\:Transform\:table}: \:L\left\{t\right\}=\frac{1}{s^2} \ \textgreater \  L\left\{t\right\}=\frac{1}{s^2}

L\left\{\frac{e}{2}\right\} \ \textgreater \  \mathrm{Use\:Laplace\:Transform\:table}: \:L\left\{a\right\}=\frac{a}{s} \ \textgreater \  L\left\{\frac{e}{2}\right\}=\frac{\frac{e}{2}}{s} \ \textgreater \  \frac{e}{2s}

\frac{ek}{2}\cdot \frac{1}{s^2}+\frac{e}{2s}-\frac{k}{2}\cdot \frac{1}{s^2}

\frac{ek}{2}\cdot \frac{1}{s^2}  \ \textgreater \  \mathrm{Multiply\:fractions}: \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d} \ \textgreater \  \frac{ek\cdot \:1}{2s^2} \ \textgreater \  \mathrm{Apply\:rule}\:1\cdot \:a=a
\frac{ek}{2s^2}

\frac{k}{2}\cdot \frac{1}{s^2} \ \textgreater \  \mathrm{Multiply\:fractions}: \frac{a}{b}\cdot \frac{c}{d}=\frac{a\:\cdot \:c}{b\:\cdot \:d} \ \textgreater \  \frac{k\cdot \:1}{2s^2} \ \textgreater \  \mathrm{Apply\:rule}\:1\cdot \:a=a
\frac{k}{2s^2}

\frac{ek}{2s^2}+\frac{e}{2s}-\frac{k}{2s^2}

Hope this helps!
3 0
3 years ago
Other questions:
  • ( 5x^4- 3x^2 - 4x+6)/(x-7)
    15·1 answer
  • 31.24 to 1 decimal place
    8·1 answer
  • H(x) = x^2 - 1<br> Over which interval does h have a negative average rate of change?
    13·1 answer
  • 5) If f(x)=x2-x, what is f(-5)?<br> A. -30<br> B. -20<br> C. 20<br> D. 30
    7·1 answer
  • Which numbers are irrational? Select all that apply.
    10·2 answers
  • 25 POINTS!!!!
    10·1 answer
  • Which rigid motion is verified below?"
    10·1 answer
  • Which transformations will produce similar, but not congruent, figures?
    12·1 answer
  • What is the variable of 8b+3.2
    10·1 answer
  • PLEASE HELP WILL MARK BRAINLIEST NO FAKE ANSWERS OR WILL BE REPORTED
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!