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
astraxan [27]
3 years ago
5

A box is a cuboid with dimensions 28 cm by 15 cm by 20 cm all measured to the nearest centimetre. Dis cases are cuboid which mea

sure 1.5 cm by 14.2 cm by 19.3 cm and all measured to the nearest millimetre. Show that 17 disc cases, stacked, will definitely fit in the box. JUST TO LET YOU KNOW, THIS IS A QUESTION UNDER THE TOPIC BOUNDS. SO PLEASE ANSWER ACCORDINGLY.
Mathematics
1 answer:
Bogdan [553]3 years ago
5 0

Answer:

This only got my 2 out of 4 marks but I hope it is still helpful and you can work on it.

Step-by-step explanation:

27.5×14.5×19.5 = 7775.625cm³

1.55×14.25×19.35 = 427.393125cm³

7775.625÷427.393121 = 18.19314495

This is about upper and lower bound so anybody please carry on and help me here is a start the part underlined is where I got the marks

You might be interested in
The functions f(x) = -(x+4) +2 and g(x) =(x-2)^2 -2 have been rewritten using the completing the square method. Apply your knowl
rewona [7]

Answer:

g(x) = (x-2)^2 -2

If we compare this function with the vertex form we see that:

a = 1, h =2, k =-2

So then the vertex would be (h,k)=(2,-2)

And since the value for a is positive we know that the parabola open upward. We don't have a maximum defined since open upwards and the minimum point correspond to the vertex on this case (2,-2).

f(x)= -(x+4)^2 +2

If we compare this function with the vertex form we see that:

a=-1, h =-4, k = 2

And since the value for a is negative we know that the parabola open downward. We don't have a minimum defined since open downwards and the maximum point correspond to the vertex on this case (-4,2).

Step-by-step explanation:

We need to remember that the standard form for a parabola is given by the following equation:

y = ax^2 + bx +c

And the vertex form is given by this formula:

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

And we want to find the vertex and if we have a maximum or minimum for each function. Let's begin with g(x)

g(x) = (x-2)^2 -2

If we compare this function with the vertex form we see that:

a = 1, h =2, k =-2

So then the vertex would be (h,k)=(2,-2)

And since the value for a is positive we know that the parabola open upward. We don't have a maximum defined since open upwards and the minimum point correspond to the vertex on this case (2,-2).

For the function f(x) we assume that we have the following equation:

f(x)= -(x+4)^2 +2

If we compare this function with the vertex form we see that:

a=-1, h =-4, k = 2

And since the value for a is negative we know that the parabola open downward. We don't have a minimum defined since open downwards and the maximum point correspond to the vertex on this case (-4,2).

4 0
2 years ago
on the first day of every month Katie gets 450 phones she repairs 10 phones every day how many phones does she have left to repa
MaRussiya [10]

Answer:

340 phones

Step-by-step explanation:

Make an expression

She repairs 10 phones each day, d.

Each day she repairs 10 phones, it is 10 phones off the total number (450) she has to repair, so we can subtract 10d from 450.

450-10d

We want to find how many she has left after 11 days, so we can substitute 11 in for d

450-10(11)

Multiply

450-110

340

She will still have 340 phones left to repair

5 0
3 years ago
How u answer this? 8(u-4)+3=43​
weqwewe [10]
Use photo math for this :)
7 0
3 years ago
Read 2 more answers
A circle is defined by the equation x2 + y2 + 8x + 22y + 37 = 0. What are the coordinates for the center of the circle and the l
inn [45]
We can say that:
8x = -2ax
8 = -2a
a = -4

22y = - 2by
22 = -2b
b = -11

37 = a² + b² - r²
37 = (-4)² + (-11)² - r²
r² = 16 + 121 - 37
r² = 100
r = 10

With all this information, we can say that:
The center of the circle is: (-4 ; -11)
and the radius of the circle is r = 10

P.S:
(a - x)² + (b-y)² = r²
a² - 2ax + x² + b² -2by + y² - r² = 0
x² + y² -2ax - 2by + a² + b² - r² = 0

6 0
3 years ago
Alex swam a total of 11.5 hours during the work week and then swam a total of 2.6 hours on the weekends. He swam the same number
My name is Ann [436]
98.7 hours            11.5+2.6=14.1x7 weeks =98.7 hours
4 0
2 years ago
Read 2 more answers
Other questions:
  • How to factor!!<br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20-%2036x%20%5Cleqslant%200" id="TexFormula1" title="
    10·1 answer
  • Am I right or wrong ? If I'm wrong what's the answer .
    12·1 answer
  • PLEASEEEEE HELPPPPPPPP​
    9·2 answers
  • What is the median of this data set? O A) 88 OB) 87 OC) 75 OD) 95​
    11·1 answer
  • Helpppp.....!!!!!!!!!
    12·1 answer
  • 50 POINTS
    11·2 answers
  • For each of the following, find the percent change in the volume of a cube. The length of the side of the cube was first increas
    8·1 answer
  • H = 5 ft
    9·2 answers
  • Which point best represents √10?
    12·1 answer
  • 0.3(8-2x) - 1.2(2-3x) &lt; -21
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!