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
Sidana [21]
3 years ago
7

If x= -2 and y= 12,then 2(3x3+2y2)=

Mathematics
2 answers:
Delicious77 [7]3 years ago
8 0

Answer:

The value of expression 2(3x^3 + 2y^2) when x = -2 and y = 12 is 528

Step-by-step explanation:

To find the value of 2(3x^3 + 2y^2)

The expression is 2(3x^3+2y^2)

x = -2 and y = 12

Substitute the value of x and y in the above expression we get,

2[3(-2)^3 +2(12)^2] =  2[ (3 * (-8) ) + (2*144)]

= 2[-24 + 288] = 2 * 264 = 528

Therefore the value of expression 2(3x^3 + 2y^2) when x = -2 and y = 12 is 528

vladimir1956 [14]3 years ago
3 0

Answer:

528

Step-by-step explanation:

we have

2(3x^{3} +2y^{2})

For x=-2, y=12

substitute the value of x and the value of y in the expression

2(3(-2^{3}) +2(12^{2}))

2(3(-8) +2(144))

2(-24 +288)

2(264)

528

You might be interested in
1. If the variables x and y are proportional and y = 4 when x = 20 then which of the following equations relates all values of x
Mkey [24]

Answer:

4.) y=x-16

Step-by-step explanation:

Here,

y=4,

x=20

Now,

putting the value of x and y.

or, 4=20-16

or, 4+16=20

∴20=20

7 0
3 years ago
Read 2 more answers
A car speeds up from 20 m/s to 50 m/s over a time of 10 seconds. What is the cars acceleration
wlad13 [49]

Answer:

3 m/s

Step-by-step explanation:

\frac{50 - 20}{10}  = 3

8 0
3 years ago
PLEASE HELP 30 POINTS Wendell is looking over some data regarding the strength, measured in Pascals (Pa), of some building mater
jarptica [38.1K]

Logarithmic functions and exponential functions are inverse and opposite of one another

The logarithmic function is y = \log_2(x), and the length at 8 pascals is 3 units

<h3>How to determine the logarithmic function</h3>

The exponential function is given as:

f(x) = 2^x

Express f(x) as y

y = 2^x

Swap the positions of x and y

x = 2^y

Take the logarithm of both sides

\log(x) = \log(2^y)

Apply the rule of logarithm

\log(x) = y\log(2)

Divide both sides by log(2)

y = \frac{\log(x)}{\log(2)}

Apply the change of base rule of logarithm

y = \log_2(x)

When the strength is 8 pascals, we have:

y = \log_2(8)

Express 8 as 2^3

y = \log_2(2^3)

So, we have:

y =3 \log_2(2)

Evaluate log 2 base 2

y =3

Hence, the logarithmic function is y = \log_2(x), and the length at 8 pascals is 3 units

Read more about logarithmic and exponential functions at:

brainly.com/question/11464095

7 0
2 years ago
A test for syphilis gives a positive result with probability 0.98 when tested on a person who has the disease. The test gives a
mestny [16]

Answer:

The probability that an individual has the disease and has a positive test result is:

9.8%.

Step-by-step explanation:

Probability of a true positive result for a test of syphilis = 0.98 or 98%

Probability of a false negative result for a test of syphilis = 0.02 or 2% (100 - 98)

Probability of a true negative result for a test of syphilis = 0.9 or 90%

Probability of a false negative result for a test of syphilis = 0.1 or 10% (100 - 90)

Therefore, the probability that an individual has the disease and has a positive test result = 0.98 * 0.1 = 0.098 = 9.8%

3 0
3 years ago
Which quadratic function has Vertex (-1,4) and passes through (4,19) <br> HELP
hichkok12 [17]

Answer:

f(x)=\frac{3}{5}(x+1)^2+4

Step-by-step explanation:

The equation of a quadratic function in vertex form is given by:

f(x)=a(x-h)^2+k

Where (h,k) is the vertex.

It was given in the question that the vertex of the parabola is (-1,4).

When we substitute the vertex into the formula we get:

f(x)=a(x+1)^2+4

The parabola also passes through (4,19) hence it must satisfy its equation.

19=a(4+1)^2+4

19-4=a(5)^2

15=25a

We divide both sides by 25 to get:

a=\frac{15}{25}= \frac{3}{5}

Hence the quadratic function is:

f(x)=\frac{3}{5}(x+1)^2+4

6 0
3 years ago
Other questions:
  • It takes 3/5 feet of ribbon to make a pin. You have 9 feet of ribbon. How many pins can you make?
    13·1 answer
  • Amber is making a scale drawing of a movie screen. The actual dimensions of a movie screen in her local theater are 60 ft wide a
    5·1 answer
  • A part-time receptionist made $9101.99 last year. If he claimed himself as an exemption for $3650 and had a $5700 standard deduc
    10·2 answers
  • What factors go into 24
    9·2 answers
  • Which pointis not part of the solution of the inequality y ≥ -|x-4|-3
    8·1 answer
  • 1) Jun uses a 20%-off coupon to buy the ingredients for congee. She spends $40.
    11·1 answer
  • A shipping dock has a mobile ramp that is used to help load and unload cargo from trucks. The ramp is 125 inches long and has a
    13·1 answer
  • older car weighs 2 tons. A newer model of the car weighs 40 pounds more than the previous model. How much does the newer model o
    15·2 answers
  • Pls help number 7<br> I need helpll
    15·1 answer
  • Find the number of positive factors of 540​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!