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
AlekseyPX
3 years ago
14

B) Find the value of 2a2 + 5b2 when a = -6 and b = 2

Mathematics
2 answers:
omeli [17]3 years ago
5 0

Answer:

2(-6)(2) + 5(2)(2)

-24 + 20

=-4

melomori [17]3 years ago
3 0

Answer:

-4

Step-by-step explanation:

if a = -6 and b = 2

2*-6*2 + 5*2*2 =  -24 + 20 = -4

You might be interested in
Solve for y<br> -5x-y&lt;3
valentinak56 [21]
-5x - y < 3.....add y to both sides
-5x < y + 3...subtract 3 from both sides
-5x - 3 < y.....or y > -5x - 3 
8 0
3 years ago
1. Write the equation for a line in point slope form that had a slope of 4 and passes through (1,1)
Dahasolnce [82]

Solution:

<u>Note that:</u>

  • Slope = m = 4
  • Given point: (x₁,y₁) = (1,1) [x₁ = 1; y₁ = 1]
  • Formula: y - y₁ = m(x - x₁)

<u>Use the formula to convert the line in point slope form.</u>

  • y - y₁ = m(x - x₁)
  • y - 1 = 4(x - 1)

The equation of the line (In point slope form) is y - 1 = 4(x - 1).

8 0
3 years ago
Read 2 more answers
How long does it take for a simple with total number n to decay to 1/3n?
Vlada [557]
<span>Income earned over one year is principal * int rate so we have 0.12*A + 0.13*B +0.14*C = 400 and A + B + C = 3000 and A+B = C</span>
7 0
3 years ago
Write an exponential model given the points ( 7, 12 ) and ( 8, 25 ). Round to the nearest hundredth.
inna [77]

Answer:

The exponential model is y = 0.07\cdot e^{0.73\cdot x}.

Step-by-step explanation:

The exponential model can be modelled by the following mathematical expression:

y = A\cdot e^{B\cdot x} (1)

Where:

x - Independent variable.

y - Dependent variable.

A, B - Coefficients.

If we know that (x_{1}, y_{1}) = (7,12) and (x_{2}, y_{2}) = (8,25), then we get the following system of equations:

A\cdot e^{7\cdot B} = 12 (2)

A\cdot e^{8\cdot B} = 25 (3)

If we divide (3) by (2), we calculate the value of B:

e^{B}=\frac{25}{12}

B = \ln \frac{25}{12}

B \approx 0.734

And by (2), we determine the value of A:

A = 12\cdot e^{-7\cdot B}

A = 0.0704

The exponential model is y = 0.07\cdot e^{0.73\cdot x}.

4 0
3 years ago
what percentage of discount should be in a watch costing Rs 270 Such that a custumer can by Rs 243 ?​
castortr0y [4]

Answer:

10 percentage is the ans

Step-by-step explanation:

see the pic there is full step

5 0
3 years ago
Read 2 more answers
Other questions:
  • Write the equation of a line that is perpendicular to the given line and that passes through the given point.
    5·1 answer
  • Over a three-day weekend, a rental car agency charges $65 to rent a car plus $0.30 for each mile traveled. If y represents the t
    14·1 answer
  • Please I need help!!! My grade depends on it!
    11·1 answer
  • The sum of the first 666 terms of a geometric series is 15{,}62415,62415, comma, 624 and the common ratio is 555.
    5·1 answer
  • Simplify the product 7x (x + 4)
    11·2 answers
  • PLEASE ANSWER FAST!! Find the 29th term of this sequence:-121,-108,-95,-82...
    14·1 answer
  • If H^1 (x) is the inverse of H (x), what is the value of H^-1 (H (x))?
    11·2 answers
  • Can u please help me ? I will mark you brainliest
    13·1 answer
  • A linear function contains the following points.
    8·1 answer
  • Write the equation of a line that is BOTH PARALLEL and PERPENDICULAR
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!