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3 years ago

Help pls! It’s due soon

Mathematics

2 answers:

Juliette [100K]3 years ago

6 0

Answer:

x1 = -8 and x2 = 9?

Alja [10]3 years ago

6 0

= x - 8 / x = 2 / x + 9

= Let's solve your equation step-by-step.

= x − 8x = 2x + 9

= x + − 8x = 2x + 9

Multiply all terms by x and cancel:

xx + −8 = 2 + 9x

x² −8 = 9x + 2 ( Simplify both sides of the equation )

x² − 8 − (9x + 2) = 9x + 2 − (9x + 2) (Subtract 9x+2 from both sides)

x² − 9x − 10 = 0

( x + 1 )( x − 10 ) = 0 (Factor left side of equation)

x +1 = 0 or x − 10 = 0 (Set factors equal to 0)

x = − 1 or x = 10

Check answers. (Plug them in to make sure they work.)

<h3>x= −1 ( Works in original equation )</h3><h3>x = 10 ( Works in original equation )</h3><h3 />

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The perimeter of a rectangular table is 20 feet. The width of the table is 3 feet. What is the length of the table

lyudmila [28]

Answer:

7 ft

Step-by-step explanation:

Perimeter of a rectangle is denoted by the formula: $P=2l+2w$ , where l is the length and w is the width.

We know that P = 20 and that w = 3. So, let's plug these values in:

$20 = 2l+2*3=2l+6$

Isolate the variable $l$ by subtracting 6 from both sides and dividing by 2:

$2l=20-6=14$

$l=7$

Thus, the answer is 7 feet.

Hope this helps!

8 0

3 years ago

Read 2 more answers

Dean has $70 in a savings account that earns 5% interest, compounded annually. To the nearest cent, how much will he have in 3 y

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8 0

3 years ago

Please help

Firdavs [7]

Answer:

(–10, –2), (6, 6)

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

<u><em>Verify each case</em></u>

case 1) (5, –4), (–2, 1)

substitute in the formula

$m=\frac{1-(-4)}{-2-5}$

$m=\frac{1+4}{-2-5}$

$m=\frac{5}{-7}$

$m=-\frac{5}{7}$ ----> the slope is negative

case 2) (6, –10), (2, 10)

substitute in the formula

$m=\frac{10-(-10)}{2-6}$

$m=\frac{10+10}{2-6}$

$m=\frac{20}{-4}$

$m=-5$ ----> the slope is negative

case 3) (–10, –2), (6, 6)

substitute in the formula

$m=\frac{6-(-2)}{6-(-10)}$

$m=\frac{6+2}{6+10}$

$m=\frac{8}{16}$

$m=0.5$ ----> the slope is positive

case 4) (5, –1), (–6, 6)

substitute in the formula

$m=\frac{6-(-1)}{-6-5}$

$m=\frac{6+1}{-6-5}$

$m=\frac{7}{-11}$

$m=-\frac{7}{11}$ ----> the slope is negative

3 0

3 years ago

How do you solve these two questions and what are the answers?

Sphinxa [80]

Answer:

a) -6/2

b) -9/2

Step-by-step explanation:

a) rearrange by making y the subject as y = mx+c

y = -6/2x-9/2

the gradient = -6/2

b) c is the y-intercept as it touch the y-axis, therefore -9/2 is where the line crosses the y-axis

6 0

2 years ago

How is 1/2 and 4/8 equivalent

alexandr402 [8]

Answer:

they are both half

Step-by-step explanation:

1 is half of 2 And 4 is half of 8

5 0

3 years ago