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CaHeK987 [17]
2 years ago
5

How can you determine whether a given number makes an equation true?​

Mathematics
1 answer:
EastWind [94]2 years ago
3 0

Answer:

By plotting in the number in the equation (aka where all the x’s are variables are) and seeing if it works.

Step-by-step explanation:

For example, let’s use the problem:

3x + 4 = 16

if the given number is 4, we fill it in for x-

3 (4) + 4= 16

solve to see if true:

12 + 4 = 16

16 = 16

hence, the given number 4 makes the equation true!

hopes this helps, have a great day :)

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How do you write 23.5 in word form
vladimir1956 [14]

We have the following number:


23.5


This number can be written as:


23 + 0.5


Or:


23 + 1/2


So, the new expression gives us two new numbers. In this way, we can say that:


23 = Twenty three

1/2 = a half


In conclusion, the number 23.5 can be written as follows:


<em>23.5 = Twenty three and a half</em>

5 0
3 years ago
Read 2 more answers
F(x) = — 3х2 – 6х +5 <br> maximum and minimum value
gregori [183]

9514 1404 393

Answer:

  maximum: 8; no minimum

Step-by-step explanation:

A graph can be useful. I find a graphing calculator handy. It shows the maximum of the function is f(-1) = 8. Since the parabola goes to -∞ for large values of x, there is no minimum.

  maximum: 8

__

You can also find the maximum by putting the function in vertex form.

  -3(x^2 +2x) +5 . . . . factor the leading coefficient from the x terms

 -3(x^2 +2x +1) +5 -(-3)(1) . . . . add the square of half the x-coefficient, subtract the equivalent amount

  -3(x +1)^2 +8 . . . . . . the vertex form of the expression for f(x)

This form is ...

  a(x -h)^2 +k . . . . . with a=-3, h=-1, k=8

so the vertex is (h, k) = (-1, 8) -- the same as shown on the graph. The negative value of 'a' tells you the parabola opens downward, so the vertex is the maximum. The maximum is 8 at x = -1.

5 0
3 years ago
Pls answer correctly dont troll!!
Rufina [12.5K]

Answer:

Yes

Step-by-step explanation:

To form a triangle : The sum of any two side lengths must be bigger than then the third side length and their difference smaller than the third side length.

19.6 + 1.6 > 18.7

19.6 - 1.6 < 18.7 and so on.

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=91%20%5Cdiv%205.915" id="TexFormula1" title="91 \div 5.915" alt="91 \div 5.915" align="absmidd
Vinil7 [7]

15.38462 is the answer i think

8 0
3 years ago
Line segment AB is reflected across the y–axis to form line segment CD. Then, line segment CD is rotated 90° clockwise about the
Maksim231197 [3]

Answer:

The coordinates of EF are E(5,-4) and F(1,-4).

The line segment EF is in QIV

Step-by-step explanation:

The line segment AB has vertices at: A(-4,5) and B(-4,1).

We apply the rule (x,y)\to (-x,y) to reflect AB in the y-axis to obtain CD.

\implies A(-4,5)\to C(4,5)

\implies B(-4,1)\to D(4,1)

We apply the rule (x,y)\to (y,-x) to rotate CD 90 degrees clockwise about the origin to obtain EF.

\implies C(4,5)\to E(5,-4)

\implies D(4,1)\to F(1,-4)

The coordinates of EF are E(5,-4) and F(1,-4).

See attachment

4 0
3 years ago
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