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Tomtit [17]
2 years ago
7

Write a quadratic equation with a double root of -5

Mathematics
2 answers:
Sophie [7]2 years ago
8 0

Answer:

x^2 =5

Step-by-step explanation:

ASHA 777 [7]2 years ago
4 0

Answer:

x² + 10x + 25 = 0

Step-by-step explanation:

Given that x = - 5 is a root then (x + 5) is a factor

Since it is a double root then (x + 5)² so equation is

(x + 5)² = 0 ← expand factor using FOIL

x² + 10x + 25 = 0

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A circle is cut into congruent sections and arranged to form a figure that approximates a parallelogram. Find the approximate he
Solnce55 [7]

Answer:

<h2>The height is 3.43 centimeters, approximately.</h2>

Step-by-step explanation:

Notice that there are 16 pieces from the circle, which means each sector has an angle of

\theta = \frac{360\°}{16}=22.5\°

Where all sectors have equal area.

Now, the area of the whole circle is 12.25 \pi \ cm^{2}, if we use the formula of its area, we'll find the radius of the circle

A= \pi r^{2}\\ 12.25\pi = \pi r^{2}\\ r=\sqrt{12.25} \approx  3.5

Notice that each piece works as an isosceles triangle, because each side is the radius, that is, they have the same length. So far, we know the sides of the isosceles triangle and one internal angle.

To find the height of the one piece, we need to use trigonometric reasons, because the height divides a triangle in two equal right triangles.

cos(11.25\°)=\frac{h}{3.5}\\ h=3.5 \times cos(11.25 \°)\\h \approx 3.43

Therefore, the height is 3.43 centimeters, approximately.

6 0
3 years ago
Please give me the correct answer and please explain how you found the answer ​
lidiya [134]

Answer:

x=48

Step-by-step explanation:

to get x alone, you have to multiply both sides by 2, and 24 times 2 is 48

plz brainliest :)

8 0
3 years ago
Given that 5W = 2P + 3R find the value of P when W = 4 and R = −4
Olenka [21]

Answer:

P = 16

Step-by-step explanation:

Given

5W = 2P + 3R ← substitute W = 4 and R = - 4 into the equation

5(4) = 2P + 3(- 4), that is

20 = 2P - 12 ( add 12 to both sides )

32 = 2P ( divide both sides by 2 )

16 = P

5 0
3 years ago
A school puts on a play. The play costs $1,150 in expenses. The students charge $5.25 for tickets. There will be one performance
tiny-mole [99]

Answer:

The equation to find profit would be y=5.25x-1,150

I'm not sure of what exactly you are looking for, If you need something else let me know and I'll be happy to help!

Step-by-step explanation:

7 0
3 years ago
Emily is making bracelets for herself and 6 of her friends she needs 1/5 of a yard of string to make each bracelet. How much str
frosja888 [35]

10  feet of string to make all the bracelets.

4 0
3 years ago
Read 2 more answers
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