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
erik [133]
3 years ago
13

Jason is 19 years older than his sister ann. in 14 years he will be twice as old as ann. how old are they now?

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
5 0
They are 16 1/2 years old.
You might be interested in
If a recipe calls for 12 oz. of chocolate chips for 2 batches, how many ounces of chocolate chips would you need for 1/2 a batch
Andru [333]

Answer:

3 oz.

Step-by-step explanation:

how many 1/2 are there in 2?

there are 4.

this means we divide 12 (oz. of choc chips) and 4

when we divide them, we get 3oz.

thats why you need 3oz. chocolate chips for 1/2 of a batch

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>!</em>

4 0
3 years ago
If sin theta = sqrt(2/2), which could not be the value of theta?
Nataliya [291]

The solution would be like this for this specific problem:

sin(θ°) = √(2)/2 

θ° = 360°n + sin⁻¹(√(2)/2) and θ° = 360°n + 180° − sin⁻¹(√(2)/2)
θ° = 360°n + 45° and θ° = 360°n + 135° where n∈ℤ 

360°*0 + 45° = 45° 
360°*0 + 135° = 135° 
360°*1 + 45° = 405° 

<span>sin(225°) = -√(2)/2

</span>225 has an angle where sin theta= -(sqrt2)/2 therefore, the value of theta cannot be 225 degrees.

4 0
3 years ago
Read 2 more answers
2x2+2(3x5)= ?? aaaaaaaaaaaaaaaaaaaaaaaaa
3241004551 [841]

Answer:

34

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Differentiate x^2 e^x logx
zimovet [89]

Product rule:

\dfrac{\mathrm d}{\mathrm dx}(x^2e^x\log x)

=\dfrac{\mathrm d(x^2)}{\mathrm dx}e^x\log x+x^2\dfrac{\mathrm d(e^x)}{\mathrm dx}\log x+x^2e^x\dfrac{\mathrm d(\log x)}{\mathrm dx}

Power rule:

\dfrac{\mathrm d(x^2)}{\mathrm dx}=2x

The exponential function is its own derivative:

\dfrac{\mathrm d(e^x)}{\mathrm dx}=e^x

Assuming the base of \log x is e, its derivative is

\dfrac{\mathrm d(\log x)}{\mathrm dx}=\dfrac1x

But if you mean a logarithm of arbitrary base b, we have

y=\log_bx\implies x=b^y=e^{y\ln b}\implies1=e^{y\ln b}\ln b\dfrac{\mathrm dy}{\mathrm dx}

\implies\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{e^{-y\ln b}}{\ln b}=\dfrac1{b^y\ln b}

\implies\dfrac{\mathrm d(\log_bx)}{\mathrm dx}=\dfrac1{x\ln b}

So we end up with

2xe^x\log x+x^2e^x\log x+\dfrac{x^2e^x}x

=xe^x(2\log x+x\log x+1)

8 0
3 years ago
A motorist travels 406 km during a 7 hr period. What was the average speed in km/hr and m/s?
aalyn [17]

Answer:

The answer is:

58 km/hr

16.1 m/s

Step-by-step explanation:

406 km in 7h

x km  in 1h

x= 1 x 406/7

x= 58 km/hr


58 km/hr ⇒⇒⇒⇒⇒⇒ 16.1 m/s

4 0
3 years ago
Other questions:
  • Solve following <br> x-y=2<br> 5x+3y=18
    6·2 answers
  • A number is less than 100 but more than 50.it has 15 and 3 factors.what is the number
    9·1 answer
  • Express 750g as a percentage of 1.5kg.
    8·1 answer
  • Benny has a total of 64 quarters and pennies in his pocket. These coins total $4.00. How many pennies are in Benny's pocket?
    14·2 answers
  • A/-2-5=0<br> A=-10;a=0;a=10
    13·1 answer
  • Denzel can mow 1/8 of his yard every 7 minutes. If he had 40 minutes to mow 3/4 of the yard, will he have enough time
    13·1 answer
  • Find the mean absolute value of 0.4, 0.2, 0.4, 0.6​
    7·1 answer
  • How do you do number 25? At the bottom.
    10·1 answer
  • Please help me with this question I will mark you as the best answer if correct
    6·2 answers
  • 9. A rectangular rug has a perimeter of 46 feet. The dimensions of a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!