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3 years ago

Help me gurlz!!!!!!!!!!!!!!!

Mathematics

1 answer:

steposvetlana [31]3 years ago

4 0

Step-by-step explanation:

A and 3

B and 1

C and 4

D and 2

I hope this helps :)

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Question is in picture.

Norma-Jean [14]

Answer:

Step-by-step explanation:

Having the system of equations in its simplest form

$\left\{\begin{array}{ccc}ax+by=c\\dx+ey=f\end{array}\right$

$a=d,\ b=e,\ c=f$

then the system of equations has infinitely many solutions.

$a=d,\ b=e,\ c\neq f$

then the system of equations has no solution.

$a\neq d\ or\ b\neq e$

then the system of equations has one solution.

We have the equation

$y=-2x+4$

Convert to the standard form Ax + By = C<em>:</em>

<em /> $y=-2x+4$ <em> add 2x to both sides</em>

$y+2x=-2x+2x+4\\\\2x+y=4$

3 0

3 years ago

A classmate estimated square root of 397 to be about 200 explain the mistake and correct it

Arturiano [62]

They probably thought square rotting was dividing by 2. The correct answer is about 20

5 0

3 years ago

Find the sum of the following infinite geometric series.

pishuonlain [190]

Answer is b hope this helps you

6 0

3 years ago

3x+8y=27 4x+3y=13 solve the simultaneous equation

dmitriy555 [2]

Step-by-step explanation:

3x+8y=27

3x=27-8y

x=27-8y/3

4(27-8y/3) + 3y=13

36-32/3y +3y =13

36-23/3y=13

36-13=23/3y

y=3

x=1

4 0

3 years ago

Calculate the width of a 80” TV if the TV has an aspect ratio of 21:9.

blagie [28]

Answer:

34.29 Inch.

Step-by-step explanation:

The Aspect Ratio of a screen is the ratio of the Width to the Height of the screen.

We are told that the TV screen has an aspect ratio of 21:9

Therefore:

$\dfrac{Width}{Height}=\dfrac{21}{9} \\$Since Width =80''\\\dfrac{80}{Height}=\dfrac{21}{9}\\$Cross multiply\\Height*21=80*9\\Height =(80*9) \div 21\\$Height =34.29$

The height of the TV will be approximately 34.29 Inch.

3 0

3 years ago