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Svetlanka [38]
3 years ago
6

The square of a number I see equal to two less than three times the number. What are two possible values of the number? A. 1,2 B

. -1,2 C. 1,-2 D. -1,-2 E. 2,3
Mathematics
1 answer:
Nady [450]3 years ago
7 0

Answer:

Option A

Step-by-step explanation:

Let us take this number as x, translating this description of the equation into mathematical language;

x^2 = 3x - 2

Now let us solve for x;

x^2 = 3x - 2,\\x^2+2=3x-2+2,\\x^2+2=3x,\\x^2+2-3x=3x-3x,\\x^2-3x+2=0,\\\\Factored = \left(x-1\right)\left(x-2\right)=0,\\Zero Factor Principle, \\x = 1, x = 2\\\\Solution - Option A

* Note that for the the previous problem I solved, I set up a similar equation that had two values for the width, one negative and the other positive. Now the width could only be a positive number, so there was only one solution out of the two.

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O the photo slash picture
Evgesh-ka [11]

Answer:

The shortest walking route is through the diagonal AC: 102.89m

Step-by-step explanation:

One can go from A to C using 2 paths:

- ADC or ABC

- using diagonal AC and half of that inner circle.

We need to compute the length of each path.

1) ADC=AD+DC=80+50=130m

2) AC²=AD²+DC²=80²+50⁵=6400+2500= 8900m²

AC=sqrt(8900)=94.34m.

Note that the diagonal AC has a missing segment, whose length is the diameter of the inner circle. So the straight line has a length of: AC-d=94.34-15=79.34m.

Perimeter of half the circle=pi×r= 3.14×(15/2)= 3.14×7.5=23.55m

So, if one is using the diagonal to go from A to C, then he has to walk:

79.34+23.55=102.89m

Comparing the two routes: 130m vs 102.89m, we notice that the route using the diagonal AC is shorter.

8 0
2 years ago
Can someone help thanks
Salsk061 [2.6K]
The equation for the volume of a pyramid is (l*w*h)/3
 
 since the problem gave you the base area, that would be the l *w

so now you would need to multiply the base area by the height, then divide by 3

16 * 15 = 240

240/ = 80 cubic centimeters

4 0
3 years ago
A playground with 4 sides has a perimeter of 73 feet. Three sides of it are 14 feet,19 feet and 25 feet what is the length of th
slamgirl [31]
To find the length of the missing side, subtract all of the known side from the perimeter.

14 + 19 + 25 = 58.
73 - 58 = 15.

The fourth side is 15 feet 

I hope that helps!
6 0
3 years ago
HELP PLZ ASAP AND I GIVE BRAINILST
Dmitry [639]

Answer:

F

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What is the answer ?
Nostrana [21]

Answer:

the answer is c

Step-by-step explanation:

Please give me brainleist

7 0
3 years ago
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