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2 years ago

Which of the following portions are true

1 answer:

amm18122 years ago

6 0

The answer would be C. If you divide 18 by 48 you would get 0.375, if you divide 27/72 you would also get 0.375. This shows that both are equivalent to each other.

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Solve the following equations;- x - 9 /√x + 3 =1

fgiga [73]

Answer:

13 , 6.

Step-by-step explanation:

A equation is given to us and we need to find out the value of x . The given equation to us is ,

$\sf\implies \dfrac{ x -9}{\sqrt{x+3}}= 1$

Cross multiply ,

$\sf\implies x - 9 =\sqrt{ x +3}$

Squaring both sides ,

$\sf\implies (x - 9)^2 = x + 3$

Simplify the whole square ,

$\sf\implies x^2+9^2-2.9.x = x +3 \\$

$\sf\implies x^2+81 - 18x = x -3$

Add 3 and subtract x on both sides ,

$\sf\implies x^2 -18x-x +81-3=0$

Simplify ,

$\sf\implies x^2 -19x +78=0$

Split the middle term of the quadratic equation,

$\sf\implies x^2-13x-6x+78=0$

Take out common ,

$\sf\implies x( x -13)-6(x-13)=0$

Take out ( x -13 ) as common ,

$\sf\implies ( x -13)(x-6)=0$

Equate both factors to 0 ,

$\sf\implies \boxed{\pink{\sf x = 13,6}}$

Hence the value of x is 13 or 6 .

7 0

2 years ago

The rise and span for a roof are shown The pitch of a roof is the ratio of the rise to the half-span. If the rise is 8 ft and th

Amiraneli [1.4K]

The pitch in simplest form is 4/15

8 0

2 years ago

I need help im stuck

Katyanochek1 [597]

Answer:

4712.4

Step-by-step explanation:

I got the same question a few days ago.

The volume is πr^2 * h / 3

r = 15

h = 20

225π * 20 / 3

1500π

It's 4712.38898

Round to 4712.4

6 0

3 years ago

Use the diagrams to answer the problems,

Rudik [331]

A) DEC

b) 2x - 8

c) x = 2

d) 5

3 0

2 years ago

What is 7,750 to the nearest thousand

victus00 [196]

Answer:

8000

Step-by-step explanation:

7750 = 8000

thus, 7,750 to the nearest thousand is 8000

6 0

2 years ago

Read 2 more answers