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3 years ago

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:

4 0

3 years ago

Read 2 more answers

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

x = 6

8 0

4 years ago

What's the answer? help asap plssssss 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 24 + 12xy

Now,

xy = - 2

So, 12xy = 12 × - 2 = - 24

•°• 24 + 12xy

= 24 + (-24)

= 24 - 24

= 0

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

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

4 0

3 years ago

Read 2 more answers

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

Read 2 more answers

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:

Given:

- 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

Correct interpretation of of this expression is:

Start at -7 and add 11, thus move 11 points to the right, to get 4 as final point.

Correct choice is:

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

6 0

3 years ago