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
Yakvenalex [24]
3 years ago
7

A toy cannon ball is launch from a cannon on top of a platform the equation h(t)= -5t + 14t + 2 gives the height h, in meter, of

the ball t seconds after it is launched.
A) determine if the ball reaches a height of 14 meters. explain your answer.

B) how long is the ball in the air?
Mathematics
2 answers:
LuckyWell [14K]3 years ago
4 0

Answer:

<h2>how long air in the earth ok good</h2>
boyakko [2]3 years ago
3 0

Answer:

A) No, because it only reaches 11.8 meters B) 2.9362 seconds :)

Step-by-step explanation:

You might be interested in
Pleaseee Help URGENTTTT
Marizza181 [45]

Answer:

correct answer is b

Step-by-step explanation:

7 0
2 years ago
Use the matrix tool to solve the system of equations. Choose the correct ordered pair.3x + 5y = 42 6x + 5y = 54
kobusy [5.1K]
Solutions  

In Matrix we use initially based on systems of linear equations.The matrix method is similar to the method of Elimination as but is a lot cleaner than the elimination method.Solving systems of equations by Matrix Method involves expressing the system of equations in form of a matrix and then reducing that matrix into what is known as Row Echelon Form.<span> 

Calculations 

</span>⇒ <span>Rewrite the linear equations above as a matrix 
</span>
\left[\begin{array}{ccc}3&5&42\\6&5&54\\\end{array}\right] 

⇒  Apply to Row₂ : Row₂ - 2 <span>Row₁ 
</span>
\left[\begin{array}{ccc}3&5&42\\0&-5&-30\\\end{array}\right] 

⇒ <span>Simplify rows
</span>
\left[\begin{array}{ccc}3&5&42\\0&1&6\\\end{array}\right] 

Note: The matrix is now in echelon form.
<span>The steps below are for back substitution. 
</span>
⇒ Apply to Row₁<span> : Row</span>₁<span> - </span>5 Row₂ 

\left[\begin{array}{ccc}3&0&12\\0&1&6\\\end{array}\right] 

⇒ <span>Simplify rows 
</span>
\left[\begin{array}{ccc}1&0&4\\0&1&6\\\end{array}\right] 

⇒ <span>Therefore, 
</span>
x=4&#10;&#10;y = 6
<span> 

 
</span>

5 0
2 years ago
isabella bought one chocolate pie for 88 cents and one cookie for 65 cents. how much did isabella spend ?
QveST [7]
153 cents or $1.53 sorry if I'm wrong
8 0
3 years ago
Read 2 more answers
Q. Mohammed calculated the volume of the prism as 240 cm3. Is he correct? *<br> a- yes <br> b- no
FrozenT [24]

Answer:

I gues s it s yes. if correct brainlest answer pla..

4 0
2 years ago
Read 2 more answers
-(7p+6)-2(-1-2p)<br> what is that simplified?
charle [14.2K]

Answer:

-3p-40

Step-by-step explanation:

-(7p+6)-2(-1-2p)

-7p-42+2+4p

-3p-40

4 0
3 years ago
Other questions:
  • Write a polynomial in standard form that represents the area of the shaded region.
    6·2 answers
  • What is greater -4 in a half or -7?
    11·1 answer
  • Erica purchased adult and youth tickets for a movie. She bought x adult tickets for $7 each and y youth tickets for $5. Write an
    7·2 answers
  • On graph paper, draw diagrams of a+a+a+a and 4a when a is 1, 2, and 3. What do you notice?
    10·2 answers
  • If a rectangle measures 12 meters by 16 meters, what is the length, in meters, of the diagonal of the rectangle?
    7·1 answer
  • How can I prepare for the math sat as someone who really struggles to understand math.. videos aren’t really helping
    13·2 answers
  • Hi please help me , this is my exam
    12·1 answer
  • Help fast help fast help Help fast help fast help Help fast help fast help Help fast help fast help Help fast help fast help Hel
    10·1 answer
  • Help me please I'm bad at this​
    5·1 answer
  • WHOEVER ANSWERS CORRECTLY I'LL GIVE BRAINLIEST!!!!!!!!!!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!