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3 years ago

Please answer ( Will give brainlst)!!

Mathematics

1 answer:

Tomtit [17]3 years ago

7 0

Use numbers on the paper

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What is the value of x in the following equation (2y+x)+(2y+x)=(-2y+x)+(2x-15)

adoni [48]

(2y + x) + (2y + x) = (-2y + x) + (2x - 15)

2y + x + 2y + x = -2y + x + 2x - 15

4y + 2x = -2y + 3x - 15
+2y + 2y

6y + 2x = 3x - 15
-2x -2x

6y = x - 15
+15 +15

15 + 6y = x

5 0

3 years ago

If m= (-3) and passes through (1,-5), the equation of the line is y= ?

irinina [24]

Y = -3x + c

Using (1,-5):
-5 = -3(1) + c
c = -5 + 3(1) = -2

Therefore:
y = -3x - 2

6 0

3 years ago

What desmal is inbetween 1/2 and 3/4

Elis [28]

Answer:

1/2 = 0.5

3/4 = 0.75

Step-by-step explanation:

7 0

2 years ago

Match the numbers in scientific notation with the corresponding numbers in standard notation. 2.32E9

andre [41]

Complete question :

Match the numbers in scientific notation with the corresponding numbers in standard notation.

232,000,000

0.00000431

2,320,000,000

0.000000000000431

2.32E9

2.32E8

4.31E-13

4.31E-6

Answer:

2.32E8 = 232,000,000

2.32E9 = 2,320,000,000

Step-by-step explanation:

2.32E8 - - > 8 digits after the decimal point ; 232,000,000

2.32E9 - - > 9 digits after the decimal point ;

2,320,000,000

4.31E-13 - - > 13 preceeding 0's before digit '4' ; 0.000000000000431

4.31E-6 - - > 6 preceeding 0's before digit '4' ; 0.000000000000431

8 0

3 years ago

Please help, seriously confused

Rufina [12.5K]

Original height = original width = x mm

1. She made an enlarged copy...
height = 2x
width = 2x

2. She cut off a rectangle...
height = 2x
width = $\frac{2}{3} *2x= \frac{4}{3}x$

3.She doubled the width...
height = 2x
width = $2*\frac{4}{3}x = \frac{8}{3}x$

height * width = area

$2x * \frac{8}{3}x=139 \ 968 \\ \\ \frac{16}{3}x^2= 139 \ 968 \\\\ x^2=139 \ 968: \frac{16}{3}=139 \ 968 * \frac{3}{16}= 8 \ 748*3 = 26 \ 244 \\ \\ x= \sqrt{26 \ 244} = 162 \ mm$

Original height was 162 mm

6 0

4 years ago