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
wolverine [178]
3 years ago
10

The product of seven plus two and eight minus two

Mathematics
1 answer:
Finger [1]3 years ago
4 0

Answer:

56

Step-by-step explanation:

type in calculator 7*((2+8)-2)

You might be interested in
An icicle with a diameter of 15.5 centimeters at the top, tapers down in the shape of a cone with a length of
Helga [31]

Answer:

Step-by-step explanation:

Note: I will leave the answers as fraction and in terms of pi unless the question states rounding conditions to ensure maximum precision.

From the question, we can tell it is a inversed-cone (upside down)

Volume of Cone = \pi r^{2} \frac{h}{3}

a) Given Diameter , d = 15.5cm and Length , h = 350cm,

we first find the radius.

r = \frac{d}{2} \\=\frac{15.5}{2} \\=7.75cm

We will now find the volume of the cone.

Volume of cone  \pi (7.75)^{2} \frac{350}{3} \\= \frac{168175\pi }{24}

We know the density of ice is 0.93 grams per 1cm^{3}

1cm^{3} =0.93g\\\frac{168175\pi }{24}  cm^{3} =0.93(\frac{168175\pi }{24} )\\= 20473 g(Nearest Gram)

b) After 1 hour, we know that the new radius = 7.75cm - 0.35cm = 7.4cm

and the new length, h = 350cm - 15cm = 335cm

Now we will find the volume of this newly-shaped cone.

Volume of cone = \pi (7.4)^{2} \frac{335}{3} \\= \frac{91723\pi }{15} cm^{3}

Volume of cone being melted = New Volume - Original volume

= \frac{168175\pi }{24} -\frac{91723\pi }{15} \\= \frac{35697\pi }{40} cm^{3}

c) Lets take the bucket as a round cylinder.

Given radius of bucket, r = 12.5cm (Half of Diameter) and h , height = 30cm.

Volume of cylinder = \pi r^{2} h\\=\pi (12.5)^{2} (30)\\=\frac{9375\pi }{2} cm^{3}

To overflow the bucket, the volume of ice melted must be more than the bucket volume.

Volume of ice melted after 5 hours = 5(\frac{35697\pi }{40} )\\=\frac{35697\pi }{8} cm^{3}

See, from here of course you are unable to tell whether the bucket will overflow as all are in fractions, but fret not, we can just find the difference.

Volume of bucket - Volume of ice melted after 5 hours

= \frac{9375\pi }{2} -\frac{35697\pi }{8 } \\=\frac{1803\pi }{8}cm^{3}

from we can see the bucket can still hold more melted ice even after 5 hours therefore it will not overflow.

4 0
2 years ago
Which comparison is true ?<br><br> 3/4 &gt; 7/8<br> 1/2 &lt; 5/8<br> 2/3 &lt; 3/8<br> 7/8 &gt; 9/10
Cloud [144]

Answer:

B

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Karl uses 8 whole square tiles and 8 half square tiles to make a mosaic. What is the area of his mosaic?​
trapecia [35]

Answer:

48

Step-by-step explanation:

8 squares=32

8 half squares=16

32+16=48

There are 4 sides to a 8 whole squares 8*4=32

There a 2 sides to 8 half squares 8*2=16

8 0
3 years ago
Solve for the value of x in this equation: 3x-4=2(3x-5).
zavuch27 [327]
X is equal to 2. The steps are listed below :)

3 0
3 years ago
Solve the following: 1) The original cost of an umbrella was $28 but is now on sale for $21. Find the percent of the discount.​
frutty [35]

Answer:

7%

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • The length, width, and height of a rectangular solid are 13.5, 12, and 14.1, respectively. Find the volume.
    7·1 answer
  • Paul wrote a check to the dentist for $345.69. He’ll use the check register to record his transaction. What will be his new bala
    10·2 answers
  • There are 4 ants on a log then 5 ants crawl theonto log how manyants are on the log
    10·2 answers
  • What is the slope of 2y-2x=2
    8·2 answers
  • How much more would $1,000 earn in 5 years in an account compounded continuously than an account compounded quarterly if the int
    14·2 answers
  • Find the slope and reduce. P=(3-4, 1 1/4) Q=(-1/2, -1)​
    13·1 answer
  • WILL MARK BRAINLIEST
    6·1 answer
  • Ned scored 84 points in the first 6 games of the basketball season . How many points per game has Ned scored ?
    10·2 answers
  • PlZZ help me
    12·1 answer
  • You are working in a lab and you need a solution of 22% acid. In the cupboard, you find a 10% and a 30% solution, but not a 22%
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!