All categories

3 years ago

3. Solve by completing the square. x^2+8x-9=0 The solutions are x =

2 answers:

6 0

Step 1: Factor left side of equation.
(x - 1)(x + 9) = 0

Step 2: Set factors equal to 0.
x-1=0 or x+9=0
x = 1 or x = -9

The solutions are x = 1 or x = -9

Lelu [443]3 years ago

3 0

Answer:

is it like exponets

Step-by-step explanation:

You might be interested in

Find the area of the shaded region.

taurus [48]

Answer:

$426.96 \: {km}^{2}$

Step-by-step explanation:

Area of the shaded region = Area of triangle with base 40 km and height 27 km - Area of circle with radius (12/2) 6 km.

$= \frac{1}{2} \times 40 \times 27 - 3.14 \times {(6)}^{2} \\ \\ = 20 \times 27 - 3.14 \times 36 \\ \\ = 540 - 113.04 \\ \\ = 426.96 \: {km}^{2}$

5 0

3 years ago

Circle O has a circumference of 88π cm.

Ratling [72]

Answer:

44 cm

Step-by-step explanation:

Half of the diameter is the radius so half 88 to get 44 since 88 is the diameter.

4 0

3 years ago

Read 2 more answers

Converting fractions to decimals worksheet 7th grade

oksano4ka [1.4K]

No one can help you if you dont show us the work my dude. But the was to convert them is say you have 1/4 that is 25% of a whole. Sorry i couldnt help more repost the question with a link and people can help then.

8 0

3 years ago

Find the value of x so that the function has the given value. <br> q(x)=12x−3; q(x)=−4

Anna [14]

Answer:

$- \frac{1}{ 12}$

Step-by-step explanation:

since q(x)=-4

substitute

hence

-4=12x-3

take -3 to the other side where it becomes positive

therefore

-1=12x

divide by 12

you will get the above answer

5 0

3 years ago

Simplify the expression.

Amanda [17]

Answer:

-1.8f - 19

Step-by-step explanation:

8 0

3 years ago

3. Solve by completing the square. x^2+8x-9=0​ The solutions are x =

3. Solve by completing the square. x^2+8x-9=0 The solutions are x =