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2 years ago

PLSS HELPP!! WILL GIVE BRAINLIEST

Mathematics

1 answer:

MAVERICK [17]2 years ago

8 0

$\huge \bf༆ Answer ༄$

Let's take Two terms x And y, according to graph ;

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:y \propto x$ phlll

now, let's add a proportionality constant to convert proportionality to equation.

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:y = kx$

let's plug the value of x and y from any ordered pair according to graph, I.e (5 , 3)

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:3 = 5k$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:k = \dfrac{3}{5}$

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Pleaseeeeeeeeeeee

Karo-lina-s [1.5K]

$\text{The scientific notation:}\\\\a\times10^n\\\\1\leq a$

$a.\\(5\times10^3)\times(3.5\times10^{-1})=(5\times3.5)\times(10^3\times10^{-1})\\\\=15.75\times10^{3+(-1)}=15.75\times10^2=1.575\times10\times10^2\\\\=1.575\times10^{1+2}=\boxed{1.575\times10^3}$

$b.\\(8\times10^2)\div(4\times10^3)=(8\div4)\times(10^2\div10^3)=2\times10^{2-3}\\\\=\boxed{2\times10^{-1}}$

$c.\\(6\times10^{-3})^2=6^2\times(10^{-3})^2=36\times10^{-3\cdot2}=36\times10^{-6}=3.6\times10\times10^{-6}\\\\=3.6\times10^{1+(-6)}=\boxed{3.6\times10^{-5}}$

$Used:\\\\a^n\times a^m=a^{n+m}\\\\a^n\div a^m=a^{n-m}\\\\(a^n)^m=a^{n\cdot m}$

5 0

3 years ago

I have found the area but I'm not sure how to find the perimeter.

Lana71 [14]

Answer:

20+20+24+24=88

88/2=44

88+44=132

Step-by-step explanation:

If you split it so there is a rectangle and a triangle, you find the perimeter of the rectangle then divide it in half.

6 0

3 years ago

the ratio of men and women in a certain factory is 3 to 4. there are 198 men. How many workers are there?

LUCKY_DIMON [66]

3 men

4 women

7 total

3 men/ 7 total = 198 men/ x total

using cross products

3*x = 7 * 198

divide each side by 3

x = 7*198/3

x = 462

There are 462 workers

If you mean 3 men and 1 women for a total of 4 workers when you state a ratio of men and women in a certain factory is 3 to 4.

3/4 =198/x

Using cross products

3x = 4* 198

Divide each side by 3

3x/3 = 4*198/3

x =264

264 workers

It all depends on how you define ratio of men and women in a certain factory is 3 to 4. This is incorrect phrasing and I took it to be men to women. You cannot have a ratio of men and women.

5 0

3 years ago

Complete the like terms to create an equvalent expression:<br> -4r - 2r + 5

Marat540 [252]

-6r+5
the two like terms are the ones with R. combine -4r and -2r to get -6r

3 0

2 years ago

A machine in a factory makes 20 gadgets every 1/4 hour. How many gadgets are made every hour?

Hoochie [10]

Answer:

80 machines

Step-by-step explanation:

If a machine makes 20 gadgets every fourth (1/4) of an hour, it makes 80 machines every hour (20*4).

7 0

3 years ago