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
adoni [48]
3 years ago
9

I need help with this Show work on each one

Mathematics
1 answer:
Studentka2010 [4]3 years ago
3 0

Answer:

first one is 1

Second is -2/3

You might be interested in
When a number is decreased by 20% of itself, the result is 128. what is the number?
andriy [413]
The number was 160 because 5/4•128=160. 5/4 represents inverting 80% and multiplying it by the number to determine how the result became 128. For checking over all you have to do is do 4/5 or 80%•160 which shall give you 128.
4 0
3 years ago
EASY POINTS, PLEASE ANSWER ASAP, WILL MARK BRAINLIEST
Akimi4 [234]
The answer is $65.5 !!
6 0
3 years ago
In which quadrant is the point (4, -5)?
oksian1 [2.3K]

Answer:

quadrant four (IV)

Step-by-step explanation:

hope this helps

5 0
3 years ago
Using the net below, find the surface area
polet [3.4K]

Answer:

56 cm^2

Step-by-step explanation:

Surface area is just finding the areas of each face in a figure. As we are given a net of a figure, it is much easier for us to calculate it.

Area of square base (side^2)

4^2 = 16 cm^2

Area of ONE triangular face (1/2 x b x h):

1/2 x 4 x 5 = 10 cm^2

Multiply that by 4 because we have 4 triangular faces: 10 cm^2 x 4 = 40 cm^2

ADD all the areas of triangles and square:

16 cm^2 + 40 cm^2 = 56 cm^2

HOPE THIS HELPS

Have a nice day!

4 0
3 years ago
Evaluate the surface integral ∫sf⋅ ds where f=⟨2x,−3z,3y⟩ and s is the part of the sphere x2 y2 z2=16 in the first octant, with
skad [1K]

Parameterize S by the vector function

\vec s(u,v) = \left\langle 4 \cos(u) \sin(v), 4 \sin(u) \sin(v), 4 \cos(v) \right\rangle

with 0 ≤ u ≤ π/2 and 0 ≤ v ≤ π/2.

Compute the outward-pointing normal vector to S :

\vec n = \dfrac{\partial\vec s}{\partial v} \times \dfrac{\partial \vec s}{\partial u} = \left\langle 16 \cos(u) \sin^2(v), 16 \sin(u) \sin^2(v), 16 \cos(v) \sin(v) \right\rangle

The integral of the field over S is then

\displaystyle \iint_S \vec f \cdot d\vec s = \int_0^{\frac\pi2} \int_0^{\frac\pi2} \vec f(\vec s) \cdot \vec n \, du \, dv

\displaystyle = \int_0^{\frac\pi2} \int_0^{\frac\pi2} \left\langle 8 \cos(u) \sin(v), -12 \cos(v), 12 \sin(u) \sin(v) \right\rangle \cdot \vec n \, du \, dv

\displaystyle = 128 \int_0^{\frac\pi2} \int_0^{\frac\pi2} \cos^2(u) \sin^3(v) \, du \, dv = \boxed{\frac{64\pi}3}

8 0
2 years ago
Other questions:
  • PLEASE HELP!!!!!!!!!!!!!
    14·1 answer
  • Can anyone please help me solve for x? Thank you!
    12·2 answers
  • Which function dominates x^p or p^x
    11·1 answer
  • 10 oz for $2.68<br> What is the price for<br> 1 oz? |
    15·1 answer
  • The equation of a line in slope-intercept form through the point (3, -4) and had a slope of 6
    7·1 answer
  • Simply 3pq+5pr-2qr+qp-6rp​
    9·1 answer
  • Select all that apply.
    14·2 answers
  • there were 62 people in the movie theater for the matinee. ticket sales for that showing were $364. if adult tickets cost $7 and
    15·1 answer
  • Solve this system by graphing. What is the solution? *
    11·1 answer
  • A man bought a cow and a horse for $500. He sold the cow at a profit of 10% and the horse at a loss of 10% and suffered a loss o
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!