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wariber [46]
3 years ago
9

Please help. I’ll mark you as brainliest if correct!

Mathematics
1 answer:
yulyashka [42]3 years ago
4 0

Answer:

h/12(12+h)

Step-by-step explanation:

if x=7,  f(x)=1/(7+5)=1/12

if x=7+h, f(x)=1/(7+h+5)=1/(12+h)

1/12-1/(12+h)=12+h-12/12(12+h)=h/12(12+h)

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Answer the boxes please
blondinia [14]

Answer:

-4 in the first and second box

4 in the third box

Step-by-step explanation:

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3 years ago
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Answer ASAP!!!!!!! Segment BDSegment BD is a perpendicular bisector of segment ACsegment AC . AD=9x+3AD=9x+3 and DC=57DC=57 .
sergey [27]

AD = 9x + 3

DC = 57

ADC is a line, which is perpendicularly bisected by BD.

Thus AD = DC

9x + 3 = 57

9x = 57 – 3

9x = 54

x = 54/9

<span>x = 6</span>

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4 years ago
What's the answer? help asap <br>plssssss<br>Please show full explanation! ​
AURORKA [14]

Answer:

\huge\boxed{Answer\hookleftarrow}

Given,

3x - 2y = 5

xy =  - 2

Now,

(3x - 2y) {}^{2}  = (5) {}^{2}  \\

Use the algebraic identity ⇻ (a - b)² = a² - 2ab + b²

(3x - 2y) {}^{2}  = (5) {}^{2}  \\  3x {}^{2}  - 2 \times 3x \times 2y + 2y {}^{2}  = 5 {}^{2}  \\  9 {x}^{2}  - 12xy + 4y {}^{2}  = 25 \\9x {}^{2}   + 4y {}^{2} = 25 + 12xy \\  9x {}^{2}   + 4 {y}^{2}  - 1 = 24 + 12xy

✐ So, the value of 9x² + 4y² - 1 is <u>24 + 12xy</u>

Now,

xy = - 2

So, 12xy = 12 × - 2 =<u> - 24</u>

•°• 24 + 12xy

= 24 + (-24)

= 24 - 24

= <u>0</u>

<h3>⎆ The value of 9x² + 4y² - 1 is <u>0</u>.</h3>

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

4 0
3 years ago
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Is -2.54 greater or less than -2 and 27/50
zloy xaker [14]
-2.54 is equal to -2 27/50
7 0
3 years ago
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Which of the following is a correct interpretation of the expression -7- (-11)?
Brilliant_brown [7]

Answer:

B. Start at -7 on the number line and move 11 to the right.

Step-by-step explanation:

<u>Given:</u>

  • - 7 - (-11) expression

We can add or remove only positive numbers on the number line to get it  correct, so we need to open the parenthesis. When evaluated we get:

-7- (-11) = - 7 + 11 = 4

<u>Correct interpretation of of this expression is:</u>

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<u>Correct choice is:</u>

  • B. Start at -7 on the number line and move 11 to the right.

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3 years ago
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