MATHEMATICS MIDDLE SCHOOL

what is the total area of one face of the pyramid? what is the total surface area of the faces of the pyramid, not counting the bottom? ( Hint: the bottom of the pyramid is a square.)

Answers

Answer 1
Answer: pyramid=4 triangles and 1 square base
area of triangle=(1/2)bh

4 triangles
therefor
area of 4 triangles=4(1/2)bh=
area of 4 triangles=area of faces of pyramid
area of faces of pyramid=4/2bh
area of faces of pyramid=2bh

h=slant height

2bh is answer where h=slant height and b=base legnth

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What's a integer number ?Example: -1<?<3
the water pipe has a radius of 5 cm and a height of 7 cm. what volume of water does it take to fill the pipe?
Solve for x. 7x/2+ 5 = 8
Write a division expression for Alaska population density

Multiply (2.0 ⋅ 10−4) ⋅ (3.1 ⋅ 10−20). Express the answer in scientific notation. 6.2 ⋅ 10−80 6.2 ⋅ 10−24 6.2 ⋅ 1024 6.2 ⋅ 1080

Answers

scientifice notation is
(number less than 10 but greater than or equal to 1) times (10^x)

remember
(ab)(cd)=abcd=(ac)(bd)

and
(x^m)(x^n)=x^(m+n)

so
(2*10^4)(3.1*10^20)=
(2)(10^4)(3.1)(10^20)=
(2*3.1)(10^4*10^20)

(10^4)(10^20)=10^(4+20)=10^(24)

(6.2)(10^24)

scientifie notiaotn is
6.2*10^24

2d option
(2,0 * 10⁻⁴) * (3,1 *10⁻²⁰) =

the order of multiplication factors not relevant

2,0 * 3,1 * 10⁻⁴ * 10 ⁻²⁰ =

6,2 *10 ⁻⁴ ⁺⁽⁻²⁰⁾ = 6,2⁻²⁴

The sales tax in your city is 4.4%4.4\%4.4%4, point, 4, percent, and an item costs $3\$3$3dollar sign, 3 before tax.How much tax would you pay on that item?
Round to the nearest hundredth or cent.

Answers

We are given original cost of the item excluding tax = $3.


Sale tax is 4.4% of the original cost of the item.


4.4% of 3 is = 0.044 × 3 = 0.132.


We need to round it to the nearest hundredth or cent.


So, we need to round 0.132 to two decimal places.


Therefore, 0.132 can be round to 0.13.


We needed to find the tax amount on the original cost of the item.

Therefore, $ 0.13 tax would you pay on that item of $3.

Answer:

its wrong

Step-by-step explanation:

What is the inverse of the function f(x) = 2x + 1?

Answers

Answer:

f^(-1)(x) = (x-1)/(2)

Step-by-step explanation:

let y = f(x) and rearrange making x the subject, that is

y = 2x + 1 ( subtract 1 from both sides )

y - 1 = 2 ( divide both sides by 2 )

(y-1)/(2) = x

Change y back into terms of x and let x = f^(-1) (x), thus

f^(-1)(x ) = (x-1)/(2)

What is less than 7 and can go into 5 evenly

Answers


There are two numbers that can do the job.

The numbers are  1  and  5 .

By the way ... there is nothing that is MORE than 7 and can do it.
2,7 because they are prime

Convert 11.42424242 … to a rational expression in the form of a over b, where b ≠ 0.

Answers

Answer:

x  = (1131)/(99).

Step-by-step explanation:

Given  : 11.42424242 …

To find : Convert it to a rational expression in the form of a over b, where b ≠ 0.

Solution: We have given 11.42424242 …

We can see here two number 42 are repeating.

Let x = 11.42424242 …

On multiplying both sides by 100

100x = 100 * 11.42424242 …

100x = 1142.424242.....

100x = 11.4242.....+1131.00000.....

100x = x + 1131.0000....

On subtracting both sides by x

100x -x = 1131

99x = 1131.

On dividing both side by99.

x  = (1131)/(99).

Therefore, x  = (1131)/(99).
11.42... = 11 42/99 = 1131/99 reduces to 377/33

Margo is freezing 8 cups of strawberry of this is two thirds the total strawberries that were picked how many cups of strawberry did Margo pick?

Answers

To figure out the answer to this problem you have to divide 8 by 2/3 in order to divide with fractions you have to flip the fraction and multiply so instead of 8 divided by 2/3 it will be 8 times 3/2. Once you multiply that you get 12/1 or 12 as your answer.
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