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
motikmotik
3 years ago
9

Im going to give 20 points for this question please answer it please

Mathematics
2 answers:
4vir4ik [10]3 years ago
6 0
Solve for the area of both triangles:
1st:
A=1/2bh
A=1/2(27)
A=13.5

2nd:
A=1/2bh
A=1/2(12)
A=6

6+13.5=19.5
The answer is C or the third choice
Anestetic [448]3 years ago
6 0
I think it is the first choice, 7.5
You might be interested in
Let f(x)=x^2f ( x ) = x 2. Find the Riemann sum for ff on the interval [0,2][ 0 , 2 ], using 4 subintervals of equal width and t
sladkih [1.3K]

Answer:

A_L=1.75

Step-by-step explanation:

We are given:

f(x)=x^2

interval = [a,b] = [0,2]

Since n = 4 ⇒ \Delta x = \frac{b-a}{n} = \frac{2-0}{4}=\frac{1}{2}

Riemann sum is area under the function given. And it is asked to find Riemann sum for the left endpoint.

A_L= \sum\limits^{n}_{i=1}\Delta xf(x_i) = \frac{1}{2}(0^2+(\frac{1}{2})^2+1^2+(\frac{3}{2})^2)=\frac{7}{4}=1.75

Note:

If it will be asked to find right endpoint too,

A_R=\sum\limits^{n}_{i=1}\Delta xf(x_i) =\frac{1}{2}((\frac{1}{2})^2+1^2+(\frac{3}{2})^2+2^2)=\frac{15}{4}=3.75

The average of left and right endpoint Riemann sums will give approximate result of the area under f(x)=x^2 and it can be compared with the result of integral of the same function in the interval given.

So, (A_R+A_L)/2 = (1.75+3.75)/2=2.25

\int^2_0x^2dx=x^3/3|^2_0=8/3=2.67

Result are close but not same, since one is approximate and one is exact; however, by increasing sample rates (subintervals), closer result to the exact value can be found.

3 0
3 years ago
X to the power of 2 add 3x
faust18 [17]

Answer:

Hope this helps

Step-by-step explanation:

a) x^2 + 3x = x(x+3)

b) 2x^2 - 8x = 2x(x - 4)

c) 6x + 9x^3 = 3x(2 + 3x^2)

d) 12x^3 - 4x^2 = 4x^2(3x - 1)

8 0
2 years ago
HELP!!!!! ASAP PLEASE!!!!!!!!!!
Nataly_w [17]

Answer:

Tangent line states that a line in the plane of a circle that intersect the circle in exactly one point.

Common external tangent states that a common tangent that does not intersects the line segment joining the centers of circle.

Common internal tangent states that a common tangent that intersects the line segment joining the centers of circle.

Circumscribe polygon states that a polygon with all sides tangent to a circle contained within the polygon.

Therefore:

A polygon with all sides tangent to a circle contained within the polygon = Circumscribe polygon

A common tangent that intersects the line segment joining the centers of circle = Common internal tangent

A common tangent that does not intersects the line segment joining the centers of circle = Common external tangent

a line in the plane of a circle that intersect the circle in exactly one point = Tangent line

3 0
3 years ago
1) (Modelo lineal de costo) Juan Chávez produce juguetes didácticos, para la fabricación de estos juguetes tiene costos fijos me
grandymaker [24]

Answer:

C = 2000 + 25 * X

$ 7000

Step-by-step explanation:

We have that the value of the total costs is equal to the fixed costs plus the variable costs.

As fixed costs we have $ 2000 and variable cost we have $ 25 for each unit, that is, the equation for total costs would be:

Let x be the number of toys, then:

C = 2000 + 25 * X

If there are 200 toys, the cost would be:

Replace x with 200:

C = 2000 + 25 * 200

C = 7000

In other words, the cost of producing 200 toys would be $ 7000.

7 0
3 years ago
Calculate the scale factor for the original triangle and its
Afina-wow [57]

Answer:

2

Step-by-step explanation:

8/4=2

have a good day..

3 0
3 years ago
Other questions:
  • If sin(x)=0.28 what is cos(90-x)
    6·2 answers
  • A car is traveling at a rate of 55 miles per hour . Let x=time in hours and y=number of miles . What is the equation that models
    9·1 answer
  • A combination lock requires three numbers from 1 to 25. how many combinations are possible? did you use the sum rule or the prod
    11·1 answer
  • I need help with dividing fractions
    9·1 answer
  • A runner wants to be able to run 400m in 50 seconds. what miles per hour speed must have Runner attain to accomplish this goal.
    10·1 answer
  • 20=2(r+7)<br> I need help with this equation
    13·2 answers
  • Convert the improper fraction to a mixed number. 17/3=​
    11·1 answer
  • A school newspaper says that 6% of the students surveyed, can wiggle their ears. How many students were surveyed ? If a school h
    11·1 answer
  • Square root of 72y^11 simplified<br>​
    12·1 answer
  • Please help! Offering many points! Brainliest is you can explain to me how to solve this problem.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!