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Feliz [49]
4 years ago
12

24 POINTS!!!!!!!!!!

Mathematics
2 answers:
maw [93]4 years ago
5 0
If the signs are alike, and ur adding/subtracting......u add them and keep the same sign
finlep [7]4 years ago
3 0
Adding or subtracting
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The area of the triangle formed by points of intersection of parabola y=a(x−3)(x+2) with the coordinate axes is 10. Find a if it
ICE Princess25 [194]

Answer: a = 4

Step-by-step explanation: Area of a triangle is calculated as: A_{t}=\frac{b.h}{2}.

The triangle formed by the parabola has base (b) equal to the distance between the points where the graph touches x-axis and height (h) is the point where graph touches the y-axis.

The points on the x-axis are the roots of the quadratic equation:

a(x-3)(x+2)=0

(x-3)(x+2)=0

x - 3 = 0

x = 3

or

x + 2 = 0

x = -2

So, base is the distance between (-2,0) and (3,0).

Since they are in the same coordinate, distance will be:

b = 3 - (-2)

b = 5

Area of the triangle is 10. So constant a is

10=\frac{5.a}{2}

5a = 10.2

a = 4

The constant a of the function y = a(x-3)(x+2) is 4.

7 0
2 years ago
What is the mean of 86,87,95,96,88,94, and 98 please help me I need it soo much
Novosadov [1.4K]
The mean would be 92. Because you add them all up then divide by how many there are
5 0
3 years ago
You take a trip by air that involves three independent flights. if there is an 76% chance each specific leg of the trip is on ti
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3 0
3 years ago
Leena bought 14 yards of wire. How many inches of wire did she buy? (1 yard = 36 inches)
Anastasy [175]

Answer:

D

Step-by-step explanation:

1 yard=3 feet=36

14 yards x 36= 504

14 yards = 504 inches

mark as brainliest :)

7 0
3 years ago
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Explain why kilobytes and terabytes would not be descriptive measurements for the amount of space on an average USB storage devi
bonufazy [111]

Answer:

The storage capacity of the USB is far greater than Kilobytes, but less than a Terabyte.

Step-by-step explanation:

The USB storage device has a capacity of (8 - 256) GB. This implies that the USB has the capacity to store files size from 8 Gigabytes to 256 Gigabytes.

8 Gigabytes ≅ 8 000 000 000 bytes

256 Gigabytes ≅ 256 000 000 000 bytes

Kilobytes would not be an appropriate descriptive measurement of the storage capacity of the USB because 1 kilobyte ≅ 1 000 bytes. Thus;

8 Gigabytes ≅ 8 000 000 kilobytes

256 Gigabytes ≅ 256 000 000 Kilobytes

The storage capacity of the USB is far greater than Kilobytes.

Terabytes can not be used to describe the measurement f the USB because; 1 Terabyte ≅ 1 000 000 000 000 bytes

Thus, the storage capacity of the USB is less than 1 Terabyte.

7 0
3 years ago
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