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3 years ago

Help me out cause this very difficult for me

Mathematics

1 answer:

agasfer [191]3 years ago

5 0

9514 1404 393

Answer:

a) 37

b) n+d

Step-by-step explanation:

This is a reading comprehension problem. You are asked to understand what you are reading, and to think about what question is being asked.

Given:

a) someone bought 20 notebook computers and 17 desktop computers

b) someone bought n notebook computers and d desktop computers

Find:

a) the total number of computers bought

b) the total number of computers bought

Solution:

a) The total number bought is found by adding together the numbers of each kind:

20 +17 = 37 . . . total computers

b) The total number bought is found by adding together the numbers of each kind:

n + d . . . total computers

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Find xif S is between R and T, RS=2x+3, ST=4x, and RT=63

borishaifa [10]

Answer:

x = 10

Step-by-step explanation:

If S is between R and T, then RS + ST will be equal to RT.

See image.

Use this idea to write an equation.

2x + 3 + 4x = 63

Combine like terms, Subtract 3, Divide by 6, to solve for x. See image.

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2 years ago

A sphere has a radius of 9 in. An artist creates a replica of the structure that has been scaled up by a factor of 1.5.

vesna_86 [32]

Answer:

Step-by-step explanation:

V=4/3πr³

v = 1.33*3.142*9³

v = 3046.39in³

New scale = 3046.39*1.5

= 4,569.59in³

7 0

4 years ago

Read 2 more answers

Rewrite the product 2sin(8x) cos(5x) as a sum or difference

kherson [118]

Answer:

~THIS IS DEFINITELY INCORRECT~

This may be incorrect, I tried solving the sum.

All done on the calculator with cleared variables.

2sin(8x) = 0

cos(5x) = 1

4 0

3 years ago

Read 2 more answers

In the measurement of the length of a cylinder, the main scale reading of a vernier caliper is 2.8 cm, the vernier reading is 4,

Sloan [31]

Answer:

the reading of the length of the cylinder is 2.84 cm

Step-by-step explanation:

Given the data in the question;

the main scale reading = 2.8 cm

the Vernier reading = 4

the least count of the Vernier = 0.01 cm

the reading of the length of the cylinder = ?

To determine the reading of the length of the cylinder, we simply say;

Reading length = main scale reading + ( Vernier reading × least count )

so we substitute in our given values

Reading length = 2.8 cm + ( 4 × 0.01 cm )

Reading length = 2.8 cm + 0.04 cm

Reading length = 2.84 cm

Therefore, the reading of the length of the cylinder is 2.84 cm

7 0

3 years ago

The volume of a rectangular prism with a square base is 180 in3. Its height is 5 in. Find the length of the edge of the square b

amid [387]

Answer:

l = 6 inches

Step-by-step explanation:

We have,

The volume of a rectangular prism with a square base is $180\ in^3$ .

Height of the prism is 5 in

It is required to find the length of the edge of the square base. Let it is l.

The formula of the volume of the rectangular prism is given by :

$V=l\times b\times h$

A is area of base of prism

It has a square base, l =b

$V=l^2\times h\\\\l=\sqrt{\dfrac{V}{h}} \\\\l=\sqrt{\dfrac{180}{5}} \\\\l=6\ in$

So, the length of the edge of the square base is 6 inches.

4 0

3 years ago