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
MAXImum [283]
2 years ago
5

Please someone help me on these questions

Mathematics
2 answers:
NikAS [45]2 years ago
6 0

Hey there! :)

Answer:

a) 24 cm²

b) 40.04 cm²

--------------------

Use the formula A = l × w to solve for each rectangle's area:

a)

8 × 3 = 24 cm².

b)

5.2 × 7.7 = 40.04 cm²

Inessa [10]2 years ago
4 0

Answer:

a) 24

b) 40.04

Step-by-step explanation:

a) Area of a rectangle: length x width

length = 8

width = 3

Plug these values into the equation above:

8 x 3 = 24

b) Same steps as above except with different values for length and width

5.2 x 7.7 = 40.04

You might be interested in
What is the ordered pair of y=4.5x
garri49 [273]

Answer:(1,1)

Step-by-step explanation:

y=4.5x

x=y/4.5

put value of x

y=4.5(y/4.5)

y=y

5 0
3 years ago
A baseball stadium has 38,496 seats. Round to the nearest thousand , how many seats is this
postnew [5]
38,496 rounded to the nearest thousand is 38,000.
4 0
3 years ago
Read 2 more answers
#10-12!!! look at picture!!! I don't give out points for free!!! T.T
Tom [10]
F(x)=x
Domain: 1 2 3 4 5 6
Range: 1 2 3 4 5 6

F(x)=2x
Domain: 1 2 3 4
Range: 0 2 4 6
3 0
3 years ago
Read 2 more answers
Plz HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
steposvetlana [31]

Answer:

36 ÷ a

55 - b

18 + c

49 x d

e ÷ 62

Step-by-step explanation:

7 0
2 years ago
A rocket is launched from a tower what time will the rocket reach its max
Lena [83]

Answer:

Step-by-step explanation:

A science class designed a ball launcher and tested it by shooting a tennis ball up and off the top of a 15-story building. They determined that the motion of the ball could be described by the function: h(t) = -16t2 + 144t + 160, where ‘t’ represents the time the ball is in the air in seconds and h(t) represents the height, in feet, of the ball above the ground at time t.

a) Graph the function h(t) = -16t2 + 144t + 160 (see below)

      b) What is the height of the building?

The height of the building is also the height of the tennis ball before it is launched into the air. This occurs when t=0 so substitute 0 for t and you get:

H(0) = -16(0)2 + 144(0) + 160

The height of the building is 160 feet.

 c) At what time did the ball hit the ground?

The ball hits the ground when the height is 0. Therefore, we are looking for a solution to: -16t2 + 144t + 160 = 0

Use the quadratic formula or put this into a calculator. The solution is t=10 and -1, but only 10 makes sense. Therefore, the ball hits the ground at 10 seconds.

  d) At what time did the ball reach its maximum height?

You can put this into the calculator or you can realize that the maximum height is also

− the vertex. The x-value (‘t’ in this case) is 2

−144

which is (2)(−16) = 4.5.

Therefore, the ball reached its maximum height at 4.5 seconds.

   e) What is the maximum height of the ball?

We calculated the time of the maximum height (4.5 seconds). Therefore, substitute 4.5 into the function to find the maximum height.

-16(4.5)2 + 144(4.5) + 160

The maximum height is 484 feet.

5 0
2 years ago
Other questions:
  • Another name for an Allen wrench is
    12·1 answer
  • How many years will it take for $2000 to double at a simple interest rate of 8%? Explain how you found your answer and show your
    15·1 answer
  • 9) 337<br>The 3 in the hundreds place is _<br>the value of the 3 in the tens place.​
    7·1 answer
  • Well here's the question for those who "couldn't see it" -_-
    8·1 answer
  • How do you answer this 6x+3=8x-21
    15·2 answers
  • What is the equation of the line that passes through (1, 2) and is parallel to the line whose equation is 2x + y - 1 = 0? 2x - y
    8·2 answers
  • Which of the following does NOT represent a function?
    11·2 answers
  • 3.A rectangular block of plasticine
    15·1 answer
  • 3) The perimeter of a triangle is 28x-7. 2 of the sides are 5X-3 and 12x+8. What is the third
    11·1 answer
  • Ples halp meh ToT
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!