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
Alinara [238K]
2 years ago
10

What the answer to -2v+8 (1+2v)=-90

Mathematics
2 answers:
Ainat [17]2 years ago
6 0

Answer

-2v+8 (1+2v)=-90 then V = -7

Step-by-step explanation:

-2v + 8 x (1 + 2v) = -90

-2v + 8 + 16v = -90

14v + 8 = -90

14v = -98  

V = -98/14

V= -7

Hope this helps ;)

dexar [7]2 years ago
4 0

Answer:

v=2-2root7, v=2+2root7  

Step-by-step explanation:

-2v+8(1+2v)=-90

-2-4v^2+8+16v=-90

6-4v^2+16v=-90

-4v^2+16v=-96

v=2-2root7, v=2+2root7

You might be interested in
How do I solve this problem
Andrews [41]

All you do is add the numbers and that is how you get your answer!


3 0
3 years ago
What is 3 3/4×2 4/5 in simplest form
Archy [21]

Answer:

10.5 = 10 1/2

Step by step:

(3 3/4)(2 4/5)

= 15/4(2 4/5)

=15/4(14/5)

=21/2

=10 1/2


4 0
3 years ago
Event A has a 0.3 probability of occuring and event B has a 0.4 probability of occuring. A and B are independent events. What is
GarryVolchara [31]
When you say either, you add both A and B
0.3+0.4=0.7
Your answer is 0.70 which means 70%
4 0
3 years ago
Read 2 more answers
Evaluate the following integrals: 1. Z x 4 ln x dx 2. Z arcsin y dy 3. Z e −θ cos(3θ) dθ 4. Z 1 0 x 3 √ 4 + x 2 dx 5. Z π/8 0 co
Zigmanuir [339]

Answer:

The integrals was calculated.

Step-by-step explanation:

We calculate integrals, and we get:

1) ∫ x^4 ln(x) dx=\frac{x^5 · ln(x)}{5} - \frac{x^5}{25}

2) ∫ arcsin(y) dy= y arcsin(y)+\sqrt{1-y²}

3) ∫ e^{-θ} cos(3θ) dθ = \frac{e^{-θ} ( 3sin(3θ)-cos(3θ) )}{10}

4) \int\limits^1_0 {x^3 · \sqrt{4+x^2} } \, dx = \frac{x²(x²+4)^{3/2}}{5} - \frac{8(x²+4)^{3/2}}{15} = \frac{64}{15} - \frac{5^{3/2}}{3}

5)  \int\limits^{π/8}_0 {cos^4 (2x) } \, dx =\frac{sin(8x} + 8sin(4x)+24x}{6}=

=\frac{3π+8}{64}

6)  ∫ sin^3 (x) dx = \frac{cos^3 (x)}{3} - cos x

7) ∫ sec^4 (x) tan^3 (x) dx = \frac{tan^6(x)}{6} + \frac{tan^4(x)}{4}

8)  ∫ tan^5 (x) sec(x)  dx = \frac{sec^5 (x)}{5} -\frac{2sec^3 (x)}{3}+ sec x

6 0
3 years ago
Combine like terms. y + 7 + 4(y + 3) =
bearhunter [10]

Answer:

5y+19

Step-by-step explanation:

should be the answer

8 0
2 years ago
Other questions:
  • Determine -f(a) for f(x) = 2x, and simplify.<br> X-<br> 1
    8·1 answer
  • Solve this quadratic equation.<br><br><img src="https://tex.z-dn.net/?f=2x%20%7B%7D%5E%7B2%7D%20%20-%205x%20%2B%202%20%3D%200" i
    10·1 answer
  • Oliver and Lenny started hiking a hill simultaneously from the bottom to the top. Oliver hiked at a speed of 5 km/h during the f
    6·1 answer
  • A super has a key ring with 12 keys. He has forgotten which one opens the apartment he needs to enter. What is the probability h
    11·1 answer
  • Z = ma for a please help
    14·1 answer
  • What is the definition for a line segment
    11·2 answers
  • You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on con
    13·1 answer
  • After how many years, to the nearest whole year, will an investment of $100,000 compounded quarterly at 4% be worth
    7·1 answer
  • Problem Set #10a
    11·1 answer
  • Urgent algebra 2 help please
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!