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
Ksju [112]
3 years ago
10

A TRIANGLE has a base of 20 inches and height of 9 inches. What is its area? (a = 1/2bh)

Mathematics
1 answer:
scZoUnD [109]3 years ago
3 0

Answer:

90

Step-by-step explanation:

1/2x20x9=90

You might be interested in
IT COST 859.32 TO HAVE A SCHOOL DANCE A. HOW MANY TICKETS MUST BE SOLD TO COVER THE COST. B HOW MANY TICKETS MUST BE SOLD TO MAK
telo118 [61]
<span>If each ticket is sold for $ 9.20 then you will need to sell 94 tickets to cover the cost of the dance. You will then need to sell 200 tickets to make enough money to cover the dance and to make a profit of $ 980.68</span>
7 0
3 years ago
Tina's user ID is a 5-digit number.
Olin [163]

Answer:

98547

Step-by-step explanation:

6 0
2 years ago
Is "how much money have people spent on toilet paper?" a statistical question?
Olenka [21]

Answer:

yes

Step-by-step explanation:

3 0
3 years ago
Find the local maximum and minimum values and saddle point(s) of the function. If you have three-dimensional graphing software,
vichka [17]

Answer:

A(-1,0) is a local maximum point.

B(-1,0)  is a saddle point

C(3,0)  is a saddle point

D(3,2) is a local minimum point.

Step-by-step explanation:

The given function is  

f(x,y)=x^3+y^3-3x^2-3y^2-9x

The first partial derivative with respect to x is  

f_x=3x^2-6x-9

The first partial derivative with respect to y is  

f_y=3y^2-6y

We now set each equation to zero to obtain the system of equations;

3x^2-6x-9=0

3y^2-6y=0

Solving the two equations simultaneously, gives;

x=-1,x=3  and y=0,y=2

The critical points are

A(-1,0), B(-1,2),C(3,0),and D(3,2).

Now, we need to calculate the discriminant,

D=f_{xx}(x,y)f_{yy}(x,y)-(f_{xy}(x,y))^2

But, we would have to calculate the second partial derivatives first.

f_{xx}=6x-6

f_{yy}=6y-6

f_{xy}=0

\Rightarrow D=(6x-6)(6y-6)-0^2

\Rightarrow D=(6x-6)(6y-6)

At A(-1,0),

D=(6(-1)-6)(6(0)-6)=72\:>\:0 and f_{xx}=6(-1)-6=-18\:

Hence A(-1,0) is a local maximum point.

See graph

At B(-1,2);

D=(6(-1)-6)(6(2)-6)=-72\:

Hence, B(-1,0) is neither a local maximum or a local minimum point.

This is a saddle point.

At C(3,0)

D=(6(3)-6)(6(0)-6)=-72\:

Hence, C(3,0) is neither a local minimum or maximum point. It is a saddle point.

At D(3,2),

D=(6(3)-6)(6(2)-6)=72\:>\:0 and f_{xx}=6(3)-6=12\:>\:0

Hence D(3,2) is a local minimum point.

See graph in attachment.

3 0
3 years ago
According to the Joy Cone Company, their waffle cones have a diameter of inches 2 3\8 and a height of 6 inches.
svetlana [45]

Answer:

so idc\sqrt[n]{x} \sqrt{x} \alpha \pi x^{2} \\ \left \{ {{y=2} \atop {x=2}} \right. x_{123} \int\limits^a_b {x} \, dx  \lim_{n \to \infty} a_n \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]

443

Step-by-step explanation: its 2 6\7

7 0
2 years ago
Other questions:
  • What error did she make? She simplified the denominator incorrectly. The denominator simplifies to –7. She labeled the points in
    13·2 answers
  • The number of students at a community college increased by 12% from the last year to this year. The enrollment last year was 15,
    14·1 answer
  • Solve:<br> 6X+10&gt;5x-12<br> i need help
    9·1 answer
  • Just one, help me it’s just one easy SIMPLE prob
    8·1 answer
  • A new car sells for $30,000. The value of the car decreases by 16% annually. After how many years will the car be worth less tha
    6·1 answer
  • Whats 100 dived by 19
    15·1 answer
  • Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B35%20%5Ctimes%2035%7D%20" id="TexFormul
    14·2 answers
  • 2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2.
    13·1 answer
  • Evaluate the expression if x = 3 and y = 11. 3x + 2y 21 31 42 244
    8·1 answer
  • Ali needs $60 to purchase a flute. She has $32. She can earn $4 an hour babysitting. Which equation could be used to find h, the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!