All categories

3 years ago

PageDate#Solve sauare completing method2x^2-9x-5 =0

Mathematics

1 answer:

pashok25 [27]3 years ago

4 0

Answer:

The roots are 5 and −12

Step-by-step explanation:

Hope this helped have an amazing day!

You might be interested in

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m?

NARA [144]

Answer:

B) -7m - 8 = m - 4

D) m - 4 = -7m - 8

E) -8 - 7m = -4 + m

Step-by-step explanation:

Solve all of the equations to see if they end up with the same result. Start with the original:

-2m - 5m - 8 = 3 + (-7) + m

-7m - 8 = -4 + m (now we know B and D and E are correct)

-7m - m - 8 = -4 + m - m

-8m - 8 = -4

-8m - 8 + 8= -4 + 8

-8m = 4

6 0

3 years ago

Read 2 more answers

A circle with area 9 pie has a sector with a central angle of 17/9 pie radians .

zmey [24]

Answer: 8.5π

<u>Step-by-step explanation:</u>

If I understand the question correctly, the entire circle has an Area of 9π and you are looking for the Area of the shaded region which has a central angle of $\dfrac{17}{9}\pi$

the section of the circle that is shaded is $\dfrac{\dfrac{17}{9}\pi}{2\pi}=\dfrac{17\pi}{18\pi}=\dfrac{17}{18}$

Area of the shaded region is: $9\pi \cdot \dfrac{17}{18}=\dfrac{17}{2}\pi=8.5\pi$

5 0

4 years ago

Read 2 more answers

Solve the equation using the distributive property and properties of equality.

Alex

The distributive property:
a(b + c) = ab + ac

2(x - 8) = 68
(2)(x) - (2)(8) = 68
2x - 16 = 68 |+16
2x = 84 |:2
x = 42
Answer: D. 42

7 0

3 years ago

Read 2 more answers

A group of 140 tourists are going on a tour the tour guide rents 15 vans. Each can holds 9 tourists. What does the remainder mea

AlladinOne [14]

If 140 tourists are split up 9 per each of 15 vans, 15×9=135 which is the amount of people able to occupy a van. if there is 140 tourists and only 135 can go on a van you do 140-135=5, that means your remainder is 5.

your remainder represents the amount of people unable to board a van.

5 0

4 years ago

Read 2 more answers

Hiro is creating a larger scaled replica of a triangular canvas.

lbvjy [14]

Answer:

C - AC equals AD times AB over AE

Step-by-step explanation:

If Hiro is creating a larger scaled replica of a triangular canvas, then Hiro will get two similar triangles ABE (the small one) and ACD (the large one). Similar triangles have proportional corresponding sides, so

$\dfrac{AC}{AB}=\dfrac{AD}{AE}$

From this proportion:

$AC=\dfrac{AD\cdot AB}{AE}$

So, option C (AC equals AD times AB over AE) is correct option

3 0

4 years ago

PageDate#Solve sauare completing method2x^2-9x-5 =0​

PageDate#Solve sauare completing method2x^2-9x-5 =0