If P(x)=x²+x+7 and Q(x)= 3x² -1, find Q( – 10).

Answer:

x = 13

Step-by-step explanation:

Vertical angels are congruent so you set the two expressions equal to each other and solve for x.

2x - 2 = 3x -15  Subtraction 2x from both sides of the equation

-2 = x - 15  Add 15 to both sides of the equation

13 = x

Answer:

y ≤ 3x − 1

y ≤ −x + 4

Step-by-step explanation:

Answer:

======================

Progress per day and night is:

Number of days to climb the tree less 11 ft:

Julia climbed in 16 days/nights:

One more day is required after this:

The first equation can be rearranged to obtain p=10+q.

Substituting this into the second equation,

[tex]q(2(10+q)-10)=1000 \\ \\ q(10+2q)=1000 \\ \\ q(5+q)=500 \\ \\ q^2 + 5q-500=0 \\ \\ (q+25)(q-20)=0 \\ \\ q=-25, 20 \\ \\ q=-25 \implies p=-15 \\ \\ q=20 \implies p=30 \\ \\ \therefore \boxed{(p,q)=\{(-15, -25), (30, 20)\}}[/tex]

Answer:

its A, C, and F

Step-by-step explanation:

Answer:

A, C, F

Step-by-step explanation:

Answer:

with what

Step-by-step explanation:

Answer:

x = [tex]24^{o}[/tex]

Step-by-step explanation:

r + s = 70 feet

Applying Pythagoras theorem to the triangle formed by cable r;

[tex]/hyp/^{2}[/tex] = [tex]/adj1/^{2}[/tex] + [tex]/adj2/^{2}[/tex]

[tex]/r/^{2}[/tex] = [tex]/20/^{2}[/tex] + [tex]/8/^{2}[/tex]

[tex]r^{2}[/tex] = 400 + 64

   = 464

r = [tex]\sqrt{464}[/tex]

 = 21.541

Length of cable r is 21.54 feet.

So that,

r + s = 70 feet

21.54 feet + s = 70 feet

s = 70 feet - 21.54 feet

  = 48.46 feet

Length of cable s is 48.46 feet.

Applying trigonometric function to the triangle formed by cable s, we have;

Sin θ = [tex]\frac{opposite}{hypotenuse}[/tex]

Sin x = [tex]\frac{20}{48.46}[/tex]

        = 0.4127

x = [tex]Sin^{-1}[/tex] 0.4127

  = 24.3746

x = [tex]24^{o}[/tex]

The measure of angle that s makes with the ground is approximately [tex]24^{o}[/tex].

Answer:

Si quiere decir en un gráfico, busque cuántas unidades se eleva la coordenada y, a continuación, se ejecuta (izquierda o derecha).

Si algo no suena lo siento mi español es malo. ;--;

Answer:

Value of X is 13

The value of x is 13 in given figure, which is correct option (A).

A rhombus is defined as a special type of parallelogram that is a quadrilateral with two pairs of equal parallel sides. it fulfills the requirements of a parallelogram.

The perimeter of a rhombus is defined as the total length of its region. The four sides of a rhombus are equal, its perimeter is calculated by multiplying the length of its side by 4.

Perimeter of a rhombus = 4 × A units,  where ‘A’ is the length of the side of the rhombus

In figure ABCD is a rhombus

Given as :

Angle ∠ A = (5x + 25)

Angle ∠ D = (7x - 1)

Since adjacent angles of a rhombus add up to 180°

(5x + 25) + (7x - 1) = 180 and both equal

So, 5x + 25 = 7x - 1

Rearrange the terms in the equation,

7x - 5x = 1 +25

2x = 26

x = 13

Hence, the value of x is 13 in given figure.

Learn more about rhombus here :

https://brainly.com/question/27870968

#SPJ5

Answer:

m∠D=64°

m∠E=90°

m∠F=26°

DE=154°

EF=116°

DF=90°

Step-by-step explanation:

Hope this helps :D

phew, this took me time, so I would appreciate brainliest, thanks have a good day :)

The function model that represents the amount of battery left after a period  of time is y = 1 ₋ 10%x

Given, Miranda bought a new cell phone which is consuming battery at a rate of 5% for every half an hour.

We are required to establish a function model that depicts how much battery is remaining after a certain amount of time.

Let y represent the amount of battery left.

and x represent the number of hours.

Then 5% per half an hour = 5% × 2 = 10%

Now frame the function model:

The amount of battery left = 1 ₋ (rate percent at which battery is being consumed)(The number of hours left)

⇒ y = 1 ₋ 10%(x)

⇒ y = 1 ₋ 10%x

As a result, we obtained the function model for the battery's remaining capacity as y = 1 ₋ 10%x

Learn more about Function models here:

brainly.com/question/25638609

#SPJ9

Answer:

A. The solution is (1, -3)

Step-by-step explanation:

4x - 5y = 19

y = x - 4

Since the second equation already has y isolated, you can just plug that into the first equation:

4x - 5(x - 4) = 19

4x - 5x + 20 = 19

-x = -1

x = 1

Take your x value from the previous equation answer and plug that into the second equation:

y = (1) - 4

y = -3

Final solution:

(1, -3)

If you really want to know if you're correct, just do a LS/RS check for both equations:

4(1) - 5(-3) = 19

19 = 19

LS = RS

-3 = 1 - 4

-3 = -3

LS = RS

Answer:

A : 1,-3

so you substitute y= x-4 into 5y to make the equation look like 4x-5(x-4)=19 then you do -5 times (x-4) which should get you -5x and 20 so now the equation looks like this 4x-5x + 20 =19 then you combine like terms like 4x-5x which should get you -1x after you do that you subtract 20 from both sides of the equation and that should also get you -1 After you do all of that you divide by 1 on both sides and them you get your x term which is x= 1 now you can plug that into this equation y=x-4 now that equation will be y=1-4 and that is y=-3 so your answer is 1,-3

IF YOU DONT WANT TO DO ALL OF THAT BY HAND YOU CAN ALWAYS PLUG THAT EQUATION INTO DESMOS GRAPHING CALCULATOR AND YOU JUST HAVE TO FIND THE POINT WHERE THE LINE INTERSECTS

Answer:

Step-by-step explanation:

que es asap

Answer:

I can give you the forumal for solving all the problems.

Step-by-step explanation:

If this is finding the circumference, then you will need to do

[tex]C = 2*\pi *r[/tex]

If you want to find the area, you need to do

[tex]A = \pi * r^{2}[/tex]

====================================================

Work Shown:

n = number of sides = 9

S = sum of the interior angles of any polygon with n sides

S = 180(n-2)

S = 180(9-2)

S = 180(7)

S = 1260

Answer:

0.08

Step-by-step explanation:

Answer:

1st number = x

2nd number = y

x = 6y

6y = 6 x x/6

6y = x

x + x = 2x

Answer is 2x

Step-by-step explanation:

x = 6y

y = x/6

Step-by-step explanation:

Solution :

Given the equation :

[tex]$y = x^2 - 6x+3 $[/tex]

[tex]$y=1(x^2 - 6x +n)+3$[/tex]

[tex]$n = \left(\frac{b}{2}\right)^2$[/tex]

[tex]$n = \left(\frac{6}{2}\right)^2$[/tex]

n = 9

[tex]$y=1(x^2 - 6x +9-9)+3$[/tex]

[tex]$y=1(x^2 - 6x +9)-9+3$[/tex]

[tex]$y=1(x-3)^2- 6$[/tex]

Therefore the vertex form of [tex]$y = x^2 - 6x+3 $[/tex]  is  [tex]$y=1(x-3)^2- 6$[/tex].

Answer:

(x-10)^2 + (y-2)^2 = 49

Step-by-step explanation:

I'm assuming that 10-2 means (10,2)

Equation of circle:

(x-a)^2 + (y-b)^2 = r^2

Plugging in the values that we know:

(x-10)^2 + (y-2)^2 = 7^2

(x-10)^2 + (y-2)^2 = 49

Hope this helps!

Answer:

8.529325

Step-by-step explanation:

Answer:

0.539325

Step-by-step explanation:

I used a calculator.

Answer:

4

Step-by-step explanation:

Given that:

Mean temperature (m) = 36°C

Standard deviation (s) = 3°C

Temperature between 39°C and 42°C

Temperature < 39°

Probability of temperature < 39

P(x < 39)

The standardized score (Z) :

Z = (x - m) / s

Z = (39 - 36) / 3 = 1

p(Z < 1) = 0.84134 ( Z probability calculator)

Temperature < 42°

Probability of temperature < 42°

P(x < 42)

The standardized score (Z) :

Z = (x - m) / s

Z = (42 - 36) / 3 = 2

p(Z < 2) = 0.97725 ( Z probability calculator)

p(Z < 2) - p(Z < 1) = 0.97725 - 0.84134 = 0.13591

Hence, number of days in June = 30

Expected number of days = 30 * 0.13591 = 4.0773 = 4 (nearest whole number)

a) The average rate of change of annual sales between 2017 and 2018 is 1.08%

b) The average rate of change of annual sales between 2017 and 2020 is -3.27%

From the question, we are to determine the average rate of change of annual sales

a) Between 2017 and 2018

Sale in 2017 = 367

Sale in 2018 = 371

The change in sales between the years = 371 - 367

Change in sales between the years = 4

Thus,

Average rate of change = 4/367 × 100%

Average rate of change = 1.09%

Hence, the average rate of change of annual sales between 2017 and 2018 is 1.08%

b) Between 2017 and 2020

Sale in 2017 = 367

Sale in 2020 = 355

Change in sales between the years = 355 - 367

Change in sales between the years = -12

Thus,

Average rate of change = -12/367 × 100%

Average rate of change = -3.27%

Hence, the average rate of change between 2017 and 2020 is -3.27%

Learn more on Rate of change here: https://brainly.com/question/22251883

#SPJ1

Answer:

12:1

Step-by-step explanation:

Answer:

12:1

Step-by-step explanation:

Because 12 is the amount of cookies to the ratio of hours which is 1 therfore 12:1

Answer:

10

Step-by-step explanation:

Answer:

We need to find the zeros.

4x^4 + 8x^3 - 7x^2 -21x - 9

You're supposed to use synthetic division, assuming you're in algebra 2. I removed my calculus work.

x = -1 1/2, 1+sqrt5/2  , 1-sqrt5/2

x= -1.5000000119775176

4x 4 + 8x 3 - 7x 2 - 21x - 9= 0

x= -0.618033988749895

4x 4 + 8x 3 - 7x 2 - 21x - 9= 0

x= 1.618033988749895

4x 4 + 8x 3 - 7x 2 - 21x - 9= 0

Answer:

-33.2

Step-by-step explanation:

Answer:this is what I got

Step-by-step explanation:

-33.2 ;-;

Answer:

5/7

Step-by-step explanation:

Answer:

-12

Step-by-step explanation:

subtracting a negative from a negative makes a greater negative, basically adding to the negative

Answer:

-8 is the answer correct

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

Answer:

6

Step-by-step explanation: