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stira [4]
3 years ago
5

Solving proportions

d="TexFormula1" title=" \frac{1\3}{5} = \frac{a}{20} " alt=" \frac{1\3}{5} = \frac{a}{20} " align="absmiddle" class="latex-formula">​

Mathematics
1 answer:
Olegator [25]3 years ago
8 0

Answer:

a = 4/3

Step-by-step explanation:

1/3       a

----- = -----

5        20

Using cross products

1/3 * 20   = 5a

20/3 = 5a

Divide each side by 5

20/3 * 1/5 = 5a/5

4/3 = a

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The pyramid shown has a square base that is 1212 centimeters on each side. The slant height is 1818 centimeters. What is the sur
S_A_V [24]

Answer : Surface area of pyramid = 4406832 square cm.

Explanation :

Since we have given that

Side of square base = 1212 cm

Slant height of pyramid = 1818 cm

As we know that ,

\text{Surface area of pyramid }=\frac{1}{2}\times perimeter\times \text{ slant height}

\text{ Since, perimeter of square }=4\times side\\=4\times 1212\\=4848 cm

Now,

\text{ Surface area of pyramid }= \frac{1}{2}\times 4848\times 1818\\\\\text{ Surface area of pyramid }=4406832\text{ square cm}

Hence, surface area of pyramid = 4406832 square cm.


5 0
2 years ago
What is 5x10 expanded form
Allushta [10]
5x10 in expanded form is 500.
7 0
2 years ago
Which decimals in the list are repeating decimals
Troyanec [42]

Answer:

5/6 4/15 1/3

Step-by-step explanation:

on a calculator divide the numerator by the denominator.

6 0
2 years ago
Read 2 more answers
Pealse help meeeeee I NEED HELP
nalin [4]

Answer:


Step-by-step explanation:

1 a function states that for every y coordinate there is on x coordinate

2 the y intercept is -1 slope is 0

3 i do not know im trying  to figure out dont delete i will find it

6 0
3 years ago
Hello pls help meeee
AnnyKZ [126]

The function is (-x+3)/ (3x-2) and we get f(1)=1 and differentiation is f'(x)=-7/ (9x²- 12x+4).

Given that,

The function is (-x+3)/ (3x-2)

We have to find f(1) and f'(x).

Take the function expression

f(x)= (-x+3)/ (3x-2)

Taking x as 1 value

f(1)= (-1+3)/(3(1)-2)

f(1)=2/1

f(1)=1

Now, to get f'(x)

With regard to x, we must differentiate.

f(x) is in u/v

We know

u/v=(vu'-uv')/ v²        (formula)

f'(x)= ((3x-2)(-1)- (-x+3)(3))/ (3x-2)²

f'(x)= ((-3x+2)-(-3x+9))/ 9x²- 12x+4

f'(x)=(-3x+2+3x-9)/ 9x²- 12x+4

f'(x)=2-9/ (9x²- 12x+4)

f'(x)=-7/ (9x²- 12x+4)

Therefore, The function is (-x+3)/ (3x-2) and we get f(1)=1 and differentiation is f'(x)=-7/ (9x²- 12x+4).

To learn more about function visit: brainly.com/question/14002287

#SPJ1

6 0
1 year ago
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