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
EleoNora [17]
3 years ago
12

Ioana a citit dintr-o carte cu povesti 1314 pagini,depasind cu 238 pagini jumatatea cartii.cate pagini are cartea cu povesti a I

oanei ?
Mathematics
1 answer:
AnnZ [28]3 years ago
3 0
..........................................................
You might be interested in
What is 4(1-2b)+7b-10
shutvik [7]

Answer:

-6-b

Step-by-step explanation:

4(1-2b)+7b-10

Multiply what's in parantheses

4(1)=4

4(-2b)=-8b

4-8b+7b-10

Combine like terms

4-10 -8b+7b

-6-b

Hope this helps :)

6 0
3 years ago
A right triangle has legs of lengths 9 cm and 12 cm. calculate the length of the hypotenuse?
just olya [345]
Let the legs of the triangle be a and b, and the hypotenuse c.

Your first instinct might tell you to use the Pythagorean theorem to go about solving this because c= \sqrt{a^{2}+b^{2}}. This works, but it is slow.

The fastest way to solve this is to recognize that the right triangle is a special triangle where the ratio of the sides are 3:4:5. This means that if the legs are 9 and 12, then the hypotenuse is 15 because 3*3 is 9, 3*4 is 12, and 3*5 is 15.
6 0
3 years ago
Read 2 more answers
Factor.<br> 22 – 7x - 30
polet [3.4K]

-8 - 7x is the factored version.

7 0
3 years ago
Read 2 more answers
This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive an
sleet_krkn [62]

Answer:

-6re−r [sin(6θ) - cos(6θ)]

Step-by-step explanation:

the Jacobian is ∂(x, y) /∂(r, θ) = δx/δθ × δy/δr - δx/δr × δy/δθ

x = e−r sin(6θ), y = er cos(6θ)

δx/δθ = -6rcos(6θ)e−r sin(6θ), δx/δr = -sin(6θ)e−r sin(6θ)

δy/δθ = -6rsin(6θ)er cos(6θ), δy/δr = cos(6θ)er cos(6θ)

∂(x, y) /∂(r, θ) =  δx/δθ × δy/δr - δx/δr × δy/δθ

= -6rcos(6θ)e−r sin(6θ) × cos(6θ)er cos(6θ) - [-sin(6θ)e−r sin(6θ) × -6rsin(6θ)er cos(6θ)]

= -6rcos²(6θ)e−r (sin(6θ) - cos(6θ)) - 6rsin²(6θ)e−r (sin(6θ) - cos(6θ))

= -6re−r (sin(6θ) - cos(6θ)) [cos²(6θ) + sin²(6θ)]

= -6re−r [sin(6θ) - cos(6θ)]     since  [cos²(6θ) + sin²(6θ)] = 1

6 0
4 years ago
Which of the triangles shown are scalene triangles?
inn [45]

Answer: Scalene means "a triangle that has three unequal sides"

therefore it is D

6 0
2 years ago
Other questions:
  • 3/4 of a number is 27. What’s the number?
    9·1 answer
  • Is 4.95 a terminating decimal
    8·1 answer
  • Can someone help me please
    11·1 answer
  • Sams credit card balance is less than -$36. Does Sam owe more or less than $36
    7·2 answers
  • How do you solve 26/57= 849/5x
    12·1 answer
  • -7x - 8y = 9 4x -9y = 22
    11·1 answer
  • Write an equation about money. You started with $9. You spent some of it. Now you have $5.
    15·2 answers
  • 13<br> Simplify the following expression.<br> -84 = 12<br> O<br> A.<br> 7<br> oc.<br> o D. 8<br> o v
    10·1 answer
  • Given that f(x)=<br> ) - **4. (1+0), solve f(x)=3.<br> What is f how much does it equal
    12·1 answer
  • The water level of a creek has risen 4 inches above its
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!