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Viefleur [7K]
3 years ago
11

Which equation has roots whose sum is 3 and whose product is -4?

Mathematics
1 answer:
JulsSmile [24]3 years ago
8 0

Answer:

Step-by-step explanation:

Equation: x² - (sum of roots)x + product of roots = 0

x² - 3x + (-4) = 0

x² - 3x - 4 = 0

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I need help with this
fenix001 [56]

Answer:

d=13

Step-by-step explanation:

step 1) combine like terms

8d-3d-12=53

5d-12=53

isolate d

5d-12+12=53+12

5d=65

d=13

8 0
2 years ago
Read 2 more answers
A point lies on AB and is the distance from A to B. Point A is located at (4, 8) and point B is located at (14, 10)
Rzqust [24]

Answer:

(9,9)

Step-by-step explanation:

Assuming the point is exactly halfway between A and B, to find it we just need to find the centre point between (4,8) and (14,10).

To find the midpoint, we just need to find the middle value, by dividing the difference between the x values by 2, and repeating the process with the y values.

This is because the point is in the middle, so it's y value will be in the middle of the given AB y values, and its x value will also be directly in the middle of the AB x values.

The x values are 4 and 14. The midpoint is

14-4=10

10/2=5 (the midpoint is 5 away from each reference point)

4+5=9

The midpoint is 9 for the x values. This means the x-value for the point is 9.

Repeat for y-values:

10-8=2

2/2=1

8+1=9

The midpoint is 9, therefore it has the y coordinate of 9.

Therefore the coordinates for the point are (9,9).

Hope this helped!

6 0
3 years ago
the length of my living rooom is 24 feet. the width of my living room is 1/2 the length. what is the area of my living room.
stich3 [128]

The width of my living room is 1/2 the length :

24 \times  \frac{1}{2}  = 12 \: ft

The area of my living room :

24 \times 12 = 288 \:  {ft}^{2}

Answer: 288

Ok done. Thank to me :>

7 0
2 years ago
In a group of 250 music lovers, 135 of them like folk songs and 150 like modem
AVprozaik [17]

Answer:

i cant make a diagram but here i go.

Step-by-step explanation:

250-135=115

250-150=100

100+115=215

250-215=35

So your answer is that 45 people like both, 115like modern, 100 like folk song, and 35 like both.

5 0
3 years ago
2 1/4 x 3 2/5<br> show all your work
monitta

Answer:

153/20

Step-by-step explanation:

I assume you're asking

2 \frac{1}{4}  \times 3 \frac{2}{5}

So

\frac{9}{4}  \times  \frac{17}{5}

=

\frac{153}{20}

5 0
2 years ago
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