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PSYCHO15rus [73]
2 years ago
15

A. A student simplifies the algebraic expressions in the left column of the

Mathematics
1 answer:
Oxana [17]2 years ago
3 0

Among all the filled solutions first four solutions, sixth , eight , elventh to thirteenth are correct.

Given twenty expressions and we are required to find the value of expressions when x=0 and x=1.

Expression is combination of numbers, fractions, coefficients, mostly not found in equal to form.

1)2x+3-2+x

when x=0,

=2*0+3-2+0

=1

when x=1,

=2*1+3-2+1

=4

2)4x-5-2x

when x=0,

=4*0-5-2*0

=-5

when x=1,

=4*1-5-2*1

=-3

3)2-3(x+1)+4x

when x=0

=2-3(0+1)+4*0

=-1

when x=1

=2-3(1+1)+4*1

=0

4)4+3x-x-1

when x=0

=4+3*0-0-1

=3

when x=1

=4+3*1-1-1

=5

5)6x-5-6x

when x=0

=6*0-5-6*0

=-5

6) 5(x+1)-x+2

when x=0

=5(0+1)-0+2

=7

when x=1

=5(1+1)-1+2

=11

7) 2x-7+5x-3

when x=0

=2*0-7+5*0-3

=-10

when x=1

=2*1-7+5*1-3

=-3

8) 3+2x-3

when x=0

=3+2*0-3

=0

when x=1

=3+2*1-3

=2

9) 14-2x-5x+2

when x=0

=14-2*0-5*0+2

=16

when x=1

=14-2*1-5*1+2

=9

10) 5-4x(1+3)+7x

when x=0

=5-4*0(1+3)+7*0

=5

when x=1

=5-4*1(1+3)+7*1

=-4

11) 3x+1

when x=0

=3*0+1

=1

when x=1

=3*1+1

=4

12) 2x+5

when x=0

=2*0+5

=5

when x=1

=2*1+5

=7

13)x-3

when x=0

=0-3

=-3

when x=1

=1-3

=-2

14)2x+3

when x=0

=2*0+3

=3

when x=1

=2*1+3

=5

15) 12x-5

when x=0

=12*0-5

=-5

when x=1

=12*1-5

=7

16) 4x+7

when x=0

=4*0+7

=7

when x=1

=4*1+7

=11

17) 6x-5

when x=0

=6*0-5

=-5

when x=1

=6*1-5

=1

18) 2x

when x=0

=2*0

=0

when x=1

=2*1

=2

19) 16-5x

when x=0

=16-5*0

=16

when x=1

=16-5*1

=11

20) 5-9x

when x=0

=5-9*0

=5

when x=1

=5-9*1

=-4

Hence it is found that among all the filled solutions first four solutions, sixth , eight , elventh to thirteenth are correct.

Learn more about expressions at brainly.com/question/723406

#SPJ9

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Janskssjwiwshdjdnsksj
g100num [7]
This question may be trick question xD haha.

Anyways, a right triangle is a triangle with a right angle (90 degrees). In your picture, that triangle is a right triangle, but the sides could be a bit slanted. Please take a picture from top view, so I can see it properly.

The triangle's length does not matter in this case. As long as it has a right angle, it's a right triangle.
7 0
3 years ago
Find x in DEF<br><br>A. 6<br>B. 6 (square root 2)<br>C. 6 (square root 3)<br>D. 12​
netineya [11]

Answer:

B. 6√2

Step-by-step explanation:

We can use the Pythagorean Theorem to solve this out. The Pythagorean Theorem states that for any right triangle with the shortest sides (called legs) as a and b and the longest side (called the hypotenuse) as c:

a² + b² = c²

Here, a = b = 6, so:

6² + 6² = c²

36 + 36 = c²

72 = c²

c = √72 = 6√2

Now, we see the answer is B.

However, there's a trick to solving these kinds of problems. Notice that DEF is both an isosceles triangle and a right triangle. We call these 45-45-90 triangles because those are the angles of the triangle.

One characteristic of these types of triangles is that their leg to leg to hypotenuse ratio is 1 : 1 : √2, always. We could apply that here. We see that the legs are 6, so we could find the hypotenuse simply by multiplying 6 by √2, and we would get 6√2, which is exactly the value we obtained above.

Thus, the answer is B.

4 0
4 years ago
Graph linear equation for f(x)=2x
Alisiya [41]

Answer:

slope: 0

y-intercept: 2

4 0
3 years ago
What is the equation of a line that passes through (-1, -4) and (-2, -1)
Marta_Voda [28]

Answer:

First, we need to find the slope.

Slope = change in y/change in x

= -5 - 0/0 - 2

= -5/-2

= 2.5 or just 5/2 so the answer is 2.5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve the inequality 12x&lt; 22 + x<br> Ox&gt;1/2<br> Ox&lt;2<br> O x&lt; 1/2<br> Ox&gt;2
fomenos

Answer:

Step-by-step explanation:

12x < 22 + x

11x < 22

x < 2

Option 2 is the answer

5 0
3 years ago
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