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3 years ago

can someone please help? And can you also explain how to do it, because I forgot the steps on how to do it

Mathematics

1 answer:

alexdok [17]3 years ago

7 0

Answer:

option 3) EF= -7 FG= -7

Step-by-step explanation

X= 1/2

EF= 2X-8

= 2 X 1/2 -8

=1 - 8

EF = -7

FG= 4X -9

= 4X 1/2

2 - 9

FG = -7

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What is the result when (2x+2)^2 is subtracted from 1

geniusboy [140]

Answer:

- 4x² - 8x - 3

Step-by-step explanation:

We want to calculate

1 - (2x + 2)² ← expand using FOIL

= 1 - (4x² + 8x + 4) ← distribute parenthesis by - 1

= 1 - 4x² - 8x - 4 ← collect like terms

= - 4x² - 8x - 3

4 0

3 years ago

The age of Sita is five years more than Gautam's age. 5 years ago, the ratio of their ages was 3:2. Find their present ages.

vampirchik [111]

<h2>Question:-</h2>

The age of Sita is five years more than Gautam's age. 5 years ago, the ratio of their ages was 3:2. Find their present ages.

<h2>Solution:-</h2>

The age of Sita = (x + 5) years.

And, the age of Gautam = x years.

Now,

5 years ago, the ratio of their ages was 3 : 2

$\therefore$ $\bf \frac{3}{2} \: = \frac{x \: + \: 5}{x}$

Now by cross multiplying, we get,

3x = 2(x + 5)

3x = 2x + 10

3x - 2x = 10

Hence, the age of Sita = (x + 5) = (10 + 5) = 15 years.

And, the age of Gautam = x = 10 years.

Now,

The present age of Sita = 15 + 5 = 20 years. (Answer)

And, the present age of Gautam = 10 + 5 = 15 years. (Answer)

4 0

3 years ago

U = 2x - 2 (Solve for x) Hurry!

kobusy [5.1K]

X=1

because you would add two to the other side and have 2x=2 divide by 2 and you would be left with x=1

4 0

3 years ago

EVERYTHING IS DUE IN 2 HOURS AND I CANT FIGURE THIS OUT AND CANT CONTINUE WITHOUT IT PLEASE HELP a)find the probability that a r

ZanzabumX [31]

Answer:

Step-by-step explanation:

Answer -

a) 50% or 1/2

Explanation -

12+12=24

therefore, 12/24 = 1/2 which is 50%

b) 46.43% or 13/28

Explanation -

15+13=28

therefore, 13/28 which is 46.6%

7 0

4 years ago

What is it −4(3/2x−12)=−15

Greeley [361]

Answer:

x = 21/2

Step-by-step explanation:

Step 1: Write equation

-4(3/2x - 12) = -15

Step 2: Solve for x

Distribute -4: -6x + 48 = -15
Subtract 48 on both sides: -6x = -63
Divide both sides by -6: x = 21/2

3 0

3 years ago

can someone please help? And can you also explain how to do it, because I forgot the steps on how to do it ​

can someone please help? And can you also explain how to do it, because I forgot the steps on how to do it