what's the value of x?

42 + 12x - 4 = 17x + 8​

Answer:

0.95 or .95

Step-by-step explanation:

Answer:

2x+22=42

Step-by-step explanation:

2x+22-22=42-22. which is 2x=20 divide both sides with 2,therefore the answer is 10

Answer:

4x^2 + 6x - 5.

Step-by-step explanation:

Dividing term by term:

= 4x^2 + 6x - 5.

By Dividing 32x^3 + 48x^2 − 40x by 8x, we get 4x^2 + 6x - 5. Thus, option B is correct.

A quadratic equation is the second-order degree algebraic expression in a variable. the standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

We have to Divide 32x^3 + 48x^2 − 40x by 8x.

32x^3 + 48x^2 − 40x

Take 8x common from each term

8x(4x^2 + 6x − 5)

Dividing term by 8x term:

8x(4x^2 + 6x − 5) / 8x

= 4x^2 + 6x - 5.

Thus, option B is correct.

Learn more about quadratic equations;

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Answer:

y + 2 = -9(x + 3) and y - 7 = 5(x + 1)

Step-by-step explanation:

[tex]\text{Point-Slope form is:}\\\\y-y_1=m(x-x_1)\\\\\text{m - slope}\\\\(x_1,y_1) \text{ - a point}[/tex]

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[tex]\text{Options A and B are written in point-slope form.}\\\\\\y+2 =-9(x+3)\\\\\text{The slope is -9 and the point used is (-3, -2).}\\\\\\y-7=5(x+1)\\\\\text{The slope is 5 and the point used is (-1, 7).}[/tex]

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[tex]\text{Option C is written in Standard Form.}\\\\Ax+By=C\\\\\\\text{Option D is written in Slope-Intercept Form.}\\\\y=mx+b\\\\\text {m - slope}\\\\\text{b - y-intercept}[/tex]

Hope this helps.

Answer:

A

Step-by-step explanation:

Given

x - 3 = 2x + 14 ( subtract x from both sides )

- 3 = x + 14 ( subtract 14 from both sides )

- 17 = x → A

Answer:

D

Step-by-step explanation:

we collect like terms to remain with

x-2x =14+3

-x =17

divide both sides by -1 to remain with

X = 17

Answer:

Given function:

a)

Th x-intercept found when g(x) = 0

Solve the equation to find the values of x:

The x-intercepts are (3 + √7, 0) and (3 - √7, 0)

b)

Solve as above:

The left side is a square of a number which is always positive, the right side is negative.

It means there is no solution, so no-x-intercepts.

The graph of the function lies above the x-axis.

Given:

The height of the swipe card in feet after t seconds is

[tex]h(t)=-3t^2+15t+18[/tex]

To find:

The maximum height of the swipe card and the time at which it reaches this height.

Solution:

We have,

[tex]h(t)=-3t^2+15t+18[/tex]

Here, leading coefficient is -3, which is negative. It means it is a downward parabola and the vertex of the downward parabola is the point of maximum.

If a quadratic function is [tex]f(x)=ax^2+bx+c[/tex], then the vertex is

[tex]Vertex=\left(-\dfrac{b}{2a},f(-\dfrac{b}{2a})\right)[/tex]

In the given function, we get

[tex]a=-3,b=15,c=18[/tex]

Now,

[tex]-\dfrac{b}{2a}=-\dfrac{15}{2(-3)}[/tex]

[tex]-\dfrac{b}{2a}=2.5[/tex]

Putting t=2.5 in the given function, we get

[tex]h(2.5)=-3(2.5)^2+15(2.5)+18[/tex]

[tex]h(2.5)=36.75[/tex]

So, the vertex of the given parabola is at (2.5,36.75).

Therefore, the maximum height of the swipe card is 36.75 feet and it reaches this height after 2.5 seconds.

Answer:

it is the 3rd one to the bottem

o.7 - 0.31 = 0.39

Step-by-step explanation:

Answer:

9x² - 6x - 63

Step-by-step explanation:

Use the FOIL method. FOIL stands for First, Outside, Inside, Last.

Multiply following the FOIL:

3x * 3x = 9x²

3x * -9 = -27x

7 * 3x = 21x

7 * -9 = -63

9x² - 27x + 21x - 63

Combine like terms.

9x² (-27x + 21x) - 63

9x² - 6x - 63

9x² - 6x - 63 is your answer.

~

Answer:

y = 4/3x + 6

Step-by-step explanation:

Answer:

48

Step-by-step explanation:

60 = 5x

x = 12

12x4 = 48

Answer:

Answer:

The penguin will walk 75.15 feet in 45 seconds. It will take the penguin 26.95 seconds to walk 45 feet

Step-by-step explanation:

hope it helps !

Answer: 75 feet

Step-by-step explanation:

Answer:

let the no. of students in art class be x

then

9+4x=101

now u can solve it! u will get x = 23

Answer:

c

Step-by-step explanation:

Answer:

Mean:54

Step-by-step explanation:

Mean is the average number (total number of emails divided by how many days she sent them in)

Monday:28

Tuesday:46

Wednesday:52

Thursday:50

Friday:64

(28+46+52+50+64)/5

=270/5

=54

Answer:

48

Step-by-step explanation:

Monday- 28 emails

Tuesday-46 emails

Wednesday- 52 emails

Thursday-50 emails

Friday-64 emails

add them together- 240

240/5

The mean number of emails is 48

Answer:

4/48 simplified by 4 = 1/12

The probability is 1/12

.............

Answer:

1/12 per bag

Step-by-step explanation:

A Fisherman spent his weekend working on his farmland

He had 1/6 of a bag of soil

He spreads it evenly among his 2 garden beds

Therefore the soil in each garden bed can be calculated as follows

= 1/6 ÷ 2

= 1/6 × 1/2

= 1/12 per bag

Answer:

hit the square

Step-by-step explanation:

I'm pretty sure you have to hit the square and then that would be number two

Step-by-step explanation:

[tex] \frac{5}{8} (4x - 16) = 20[/tex]

[tex] \frac{5}{2} x - 10 = 20[/tex]

[tex] \frac{5}{2}x = 20 - 10[/tex]

[tex]x = 4[/tex]

Answer: B= 8.8

Step-by-step explanation:

B/2 = 4.4

B/2 (2) = 4.4 (2)

B = 8.8

Answer:

x ≤ - 2

Step-by-step explanation:

Given the inequality :

3x+5≤−1

Subtract 5 from both sides

3x + 5 - 5 ≤ - 1 - 5

3x ≤ - 6

Divide both sides by 3

3x/3 ≤ - 6/3

x ≤ - 2

Mr.Choe's error was that he changed the inequality sign. The inequality sign in this case does not need to be changed.

Answer:

Step-by-step explanation:

First let's find the circle without the gray area. We would have:

[tex]\pi r^2=\pi 36^2=\pi1296[/tex]

Next let's find the area of the circle with the gray area. We would have:

[tex]\pi r^2=\pi50^2=\pi2500[/tex]

Now we subtract and get:

[tex](2500-1296)\pi=\boxed{1204\pi}[/tex]

HOPE THIS HELPS

Answer:

9e^5f^6

Step-by-step explanation: