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
Vikki [24]
3 years ago
7

Is the equation linear? Select Yes or No for each equation. − 3 4 x − 1 2 y = 2 Yes No y = x2 − 5... yes no − 2 x = y +12 YesNo

Mathematics
1 answer:
Flauer [41]3 years ago
6 0
Yes,no,no i think hope this helps.
You might be interested in
Help please, I don't understand!!! D:
ch4aika [34]
The answer is 2 hours because from 5 to 7  the temperature was raising <span />
4 0
3 years ago
Read 2 more answers
Jon Kent's parents subtracted $3,500 from their adjusted gross income when they listed him as an exemption on their tax return .
NeX [460]

Answer: 3,917

Step-by-step explanation:

3 0
3 years ago
Evaluate Dx / ^ 9-8x - x2^
Solnce55 [7]
It depends on what you mean by the delimiting carats "^"...

Since you use parentheses appropriately in the answer choices, I'm going to go out on a limb here and assume something like "^x^" stands for \sqrt x.

In that case, you want to find the antiderivative,

\displaystyle\int\frac{\mathrm dx}{\sqrt{9-8x-x^2}}

Complete the square in the denominator:

9-8x-x^2=25-(16+8x+x^2)=5^2-(x+4)^2

Now substitute x+4=5\sin y, so that \mathrm dx=5\cos y\,\mathrm dy. Then

\displaystyle\int\frac{\mathrm dx}{\sqrt{9-8x-x^2}}=\int\frac{5\cos y}{\sqrt{5^2-(5\sin y)^2}}\,\mathrm dy

which simplifies to

\displaystyle\int\frac{5\cos &#10;y}{5\sqrt{1-\sin^2y}}\,\mathrm dy=\int\frac{\cos y}{\sqrt{\cos^2y}}\,\mathrm dy

Now, recall that \sqrt{x^2}=|x|. But we want the substitution we made to be reversible, so that

x+4=5\sin y\iff y=\sin^{-1}\left(\dfrac{x+4}5\right)

which implies that -\dfrac\pi2\le y\le\dfrac\pi2. (This is the range of the inverse sine function.)

Under these conditions, we have \cos y\ge0, which lets us reduce \sqrt{\cos^2y}=|\cos y|=\cos y. Finally,

\displaystyle\int\frac{\cos y}{\cos y}\,\mathrm dy=\int\mathrm dy=y+C

and back-substituting to get this in terms of x yields

\displaystyle\int\frac{\mathrm dx}{\sqrt{9-8x-x^2}}=\sin^{-1}\left(\frac{x+4}5\right)+C
4 0
3 years ago
A baker has 6 small bags of flour. Each bag weighs 1 pound. She divides each bag into thirds. How many 1/3 - pound bags of flour
lana [24]

Answer:

18 smaller bags

Step-by-step explanation:

Each one pound bag becomes 3 one-third pound bags.

So 6 one pound bags will become 6×3=18 one-third pound bags.

5 0
4 years ago
What number can go in the box to make the number sentence true?
Len [333]
I believe it would be 4 lil man
6 0
3 years ago
Other questions:
  • Mikw earned %ll.76 per hour for working 23.5 hours last week. how much money did mike earn last week?\
    9·1 answer
  • Complete the Square:<br> x^2-3x=-1<br>2x^2+7x=-6<br>x^2+10x=-8
    8·1 answer
  • Sally opens a bank account with $500. The account accrues 5% interest compounded annually.
    8·1 answer
  • What is 927 divided by 9 step by step
    6·1 answer
  • Which of the following is not an example of a perfect square? a √9 b √200 c √4 d √64
    14·1 answer
  • List the angles in order from largest to smallest.
    9·1 answer
  • Please helpppppp!!! ASAP
    5·1 answer
  • A pitcher pitches a ball to a hitter. The ball is hit towards center field, hits the center field fence, then drops to the groun
    10·1 answer
  • Find cos(a) in the triangle.
    10·1 answer
  • Find the number a for which x=5 is a solution of the given equation.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!