All categories

2 years ago

X minus 2 is equal to 7

Mathematics

1 answer:

Lerok [7]2 years ago

4 0

X = 9

Add both values 7 + 2 = 9, which is x.

9 - 2 = 7.

You might be interested in

What if the sample size used was some unspecified value larger than 30. Describe how this change in sample size would have affec

arlik [135]

Answer:

Option D is correct.

Decreases.

6 0

3 years ago

The graph of which function has a minimum located at (4, –3)?

valentinak56 [21]

Answer:

None of the options is the answer to the question

Step-by-step explanation:

we know that

The equation of a vertical parabola into vertex form is equal to

$f(x)=a(x-h)^{2}+k$

where

(h,k) is the vertex of the parabola

case A) we have

$f(x)=x^{2}+4x-11$

In this case the x-coordinate of the vertex will be negative

therefore

case A is not the solution

case B) we have

$f(x)=-2x^{2}+16x-35$

This case is a vertical parabola open downward (the vertex is a maximum)

The vertex is the point $(4,-3)$ but is not a minimum

see the attached figure

therefore

case B is not the solution

case C) we have

$f(x)=x^{2}-4x+5$

Convert into vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)-5=x^{2}-4x$

Complete the square. Remember to balance the equation by adding the same constants to each side

$f(x)-5+4=(x^{2}-4x+4)$

$f(x)-1=(x^{2}-4x+4)$

Rewrite as perfect squares

$f(x)-1=(x-2)^{2}$

$f(x)=(x-2)^{2}+1$ --------> vertex form

The vertex is the point $(2,1)$

therefore

case C is not the solution

case D) we have

$f(x)=2x^{2}-16x+35$

Convert into vertex form

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$f(x)-35=2x^{2}-16x$

Factor the leading coefficient

$f(x)-35=2(x^{2}-8x)$

Complete the square. Remember to balance the equation by adding the same constants to each side

$f(x)-35+32=2(x^{2}-8x+16)$

$f(x)-3=2(x^{2}-8x+16)$

Rewrite as perfect squares

$f(x)-3=2(x-4)^{2}$

$f(x)=2(x-4)^{2}+3$ --------> vertex form

The vertex is the point $(4,3)$

therefore

case D is not the solution

The answer to the question will be the function

$f(x)=2x^{2}-16x+29$

7 0

3 years ago

Read 2 more answers

Find the area of a circle with a diameter of 1.5 m. 4.71 m2 1.77 m2

nikdorinn [45]

I hope this helps you

radius=diameter/2

radius=1,5/2

radius=0,75

Area=pi. r^2

Area=3,14. (0,75)^2

Area=1,76

7 0

2 years ago

Can someone explain to me step by step how to do 5/13x=-9

snow_tiger [21]

$\frac{5}{13} x=-9
$
Multiply each side by reciprocal of 5/13This gives;x=-9* $\frac{13}{5}$
x=-23.4

5 0

3 years ago

If tax is 10.4% on $1682. How much tax I paid

natali 33 [55]

1682 * 0.104 = $174.93

7 0

3 years ago

X minus 2 is equal to 7​

X minus 2 is equal to 7