the measures of the angles of a triangle are shown in the figure below. solve for x.

Answer:

-4

Step-by-step explanation:

0.1z = 0.2(z + 2)

0.1z = 0.2z + 0.4

-0.1z = 0.4

z = -4

Answer:

z = -4

Step-by-step explanation:

Distributive Property: a(b + c) = ab + ac

1. Distribute

0.1z = 0.2(z) + 0.2(2)

0.1z = 0.2z + 0.4

2. Subtract 0.2z from both sides

0.1z - 0.2z = 0.2z - 0.2z + 0.4

-0.1z = 0.4

3. Divide both sides by -0.1 to isolate the variable

-0.1z ÷ -0.1 = 0.4 ÷ -0.1

z = -4

Learn more about the distributive property here:

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Answer:

118°

Step-by-step explanation:

When two parallel lines are cut by a tranversal, then the exterior angles are supplimentary and the corresponding angles are congruent.

Therefore the angle above (15x - 17)° is also (5x + 17)° and the angle below (5x + 17)° is also (15x - 17)°.

Angles on a straight line adds up to 180°. So to know the measure of the larger angle we must both equations and equal it to 180° to find x in order to know the larger angle.

(5x + 17) + (15x - 17) = 180

5x + 15x + 17 - 17 = 180

20x = 180

20x/20 = 180/20

x = 9°

Nkw let's substitute x = 9 into the equations

5x + 17 =

5(9) + 17 =

= 62°

15x - 17 =

15(9) - 17 =

= 118°

Both equations should add up to be 180°.

Therefore the measure of the largest angle is 118°.

Answer:

5.25 seconds

Step-by-step explanation:

When the ball hits the ground the height is zero

Equate f(t) to zero and solve for t , that is

- 16t² + 84t = 0 ← factor out - 4t from each term

- 4t(4t - 21) = 0

Equate each factor to zero and solve for t

- 4t = 0 ⇒ t = 0

4t - 21 = 0 ⇒ 4t = 21 ⇒ t = [tex]\frac{21}{4}[/tex] = 5.25

t = 0 is the time when the ball is kicked

t = 5.25 is the time taken for the ball to hit the ground

Answer:

Mark me as brainlist

Step-by-step explanation:

The rate of change of one quantity in a system often causes other quantities to change. By knowing the relationship between the different quantities, we may be able to find the relationship between their rates of change.

Answer:

Fourteen fourteen fourteenth fourteenth fourteenth fourteenth

Step-by-step explanation:

2+2 = 4

4^2 = 16

16/4 = 4

4 + 3 = 7

Answer:

4.5

Step-by-step explanation:

(2+2^2) ÷ 4+3

I will use PEMDAS (parenthesis, exponents, multiplication, division, addition, and subtraction)

Calculate 2 to the power of 2 and get 4. 2x2=4

(2+4)÷4+3

Add 2 and 4 to get 6. 2+4=6

6÷4+3

divide 6 by 4 to get 1.5 6÷4= 1.5

1.5+3

add 1.5 to 3 to get 4.5. 1.5+3= 4.5

Answer:

Scale factor = 3.5

Step-by-step explanation:

Be handy to know what the line from the left is pointing at.

All you can do is guess. The length of the side starting at the point  closest to the letter A is about 2 cm when using the magnifying glass.

The corresponding line on B is about 7 cm.

The scale factor is about 7/2 = 3.5

Answer:

y= (x-4)^2 +7

Step-by-step explanation:

4 left

7 up

not vertical and horizontal stretch or compression

Answer:

y=-1x

Step-by-step explanation:

You would find the constant of proportionality which is -1 and then you would put that into that spot and get y=-1x

Answer:

it would be D, right? A, says that everyday they have to pay $0.25 for all 3 books. C, is saying that for 3 books it costs $1 everyday. B, says that everyday they have to pay $0.50 for 3 books. But D, is saying that you have to pay $0.75 everyday for 3 books. $0.25 * 3 = $0.75. That is why I think it’s D.  

Step-by-step explanation:

Answer:

It will be needed 32 walking students to reach the goal

Step-by-step explanation:

1000 - 232

768/24= 32

Answer:

32 walkers.

Step-by-step explanation:

$1000 minus the $232 we have already raised from the bake sale to determine the amount we need to raise from the walk-a-thon.

1000 - 232 = 768.

So in order to raise 768, and we are raising $24 per person we will divide to figure out how many people we need.

768 / 24 = 32.

You can check this answer by multiplying 24 and 32, and then adding the 232 to the product.

24 x 32 = 768

768 + 232 = 1000

[tex] \frac{35 - 3}{20 - 4} = \\ [/tex]

[tex] \frac{32}{16} = \\ [/tex]

[tex]2[/tex]

d = 2

__________________________________

t(4) = t(1) + 3d

3 = t(1) + 3×2

3 = t(1) + 6

t(1) = 3 - 6

t(1) = - 3

__________________________________

t(n) = t(1) + (n-1)(d)

t(32) = - 3 + 31×2

t(32) = -3 + 62

t(32) = 59

Answer:

4444444444445566tfcgyjbde467jndw34u

Answer:

12y

Step-by-step explanation:

ill give you more websites if you need them!

Answer:

-1x - 5

Step-by-step explanation:

Okay, so I believe you need to find what 3x + 5 and -4x - 10 equals?

For this you have to add like terms:

3x - 4x = -1x

5 - 10 = -5

If this isn't it just comment and I'll edit my answer! :)

Answer:

hope it helps you.......

The required slope of the line passing through the points is m = 9/2. Option A is correct.

Given that,
To determine the slope of the line that passes through the points (2, −3.5) and (4, 5.5).

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

Here,

The slope of the line passing through two points is given by,
m = (y₂ - y₁) /  (x₂ - x₁)
Substitute value in the above equation
m= 5.5 +3.5 / 4 - 2
m = 9 / 2

Thus, the required slope of the line passing through the points is m = 9/2. Option A is correct.

Learn more about slopes here:

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#SPJ5

Answer:

he returned at 1:56 pm pls give brainliest

Answer:

Color where I put the dots (picture attached).

Step-by-step explanation:

Hope this helps/is correct.

Please don't be mad if it's wrong, this is simply what I understood from the instructions. :)

PS. You don't have to copy the line, that's just for you to get an idea.

Answer:

63 is 95.45% of 66

Step-by-step explanation:

In order to determine the percentage of 63 relative to 66, we could simply divide 63 by 66 (which represents 63 as a percentage of a whole, 66):

[tex]\frac{63}{66}[/tex] = (63 ÷ 66) × 100 = 0.9545 × 100 = 95.45%

Therefore, 63 is 95.45% of 66.

Answer:

12

Step-by-step explanation:

Substitute the values for their respective variables and evaluate.

[tex]bda+c\\\\(3)(-4)(-2)+(-12)\\\\24-12\\\\12[/tex]

Answer:

(3)(-4)(-2)+(-12)

24-12 because the 12 is a negative -12 so that would make the + sign a negative

so ur answer is 12

Step-by-step explanation:

Answer: 97.848

Step-by-step explanation: you know calculators exist, right?

Answer:Rewrite the function as an equation. y = 2 3 x − 4 Combine 2 3 and x . y = 2 x 3 − 4 Choose any value for x that is in the domain to plug into the equation. Choose 0 to substitute in for x to find the ordered pair. Tap for more steps... ( 0 , − 4 ) Choose 1 to substitute in for x to find the ordered pair. Tap for more steps... ( 1 , − 10 3 ) Choose 2 to substitute in for x to find the ordered pair. Tap for more steps... ( 2 , − 8 3 ) These are three possible solutions to the equation. ( 0 , − 4 ) , ( 1 , − 10 3 ) , ( 2 , − 8 3 )

)Step-by-step explanation:

Answer:

Step-by-step explanation:

Tip percentage = 15%

Total bill = $41

Tip = $6.15

[tex]41 \times 15\% \\ 41 \times \frac{15}{100} \\ \frac{615}{100} \ \\ 6.15 \\ [/tex]

Total bill including tip = $41 + $6.15 = $47.15

Answer:

Option D: x = 5 ± 10i

Step-by-step explanation:

Given the quadratic equation, y = x² - 10x + 125,

where:

a = 1, b = -10, and c = 125:

Use the following quadratic formula to solve for the roots:

[tex]\displaystyle\mathsf{x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}}[/tex]

[tex]\displaystyle\mathsf{x=\frac{10\pm\sqrt{(-10)^2-4(1)(125)}}{2(1)}}[/tex]

[tex]\displaystyle\mathsf{x=\frac{10\pm\sqrt{100-500}}{2}\:=\:\frac{10\pm\sqrt{-400}}{2}}[/tex]

Apply the imaginary unit rule, where it states that:  [tex]\displaystyle\mathsf{\sqrt{-a}\:=\:i\sqrt{a}}[/tex] :  

[tex]\displaystyle\mathsf{x=\frac{10\pm\:20i}{2}}[/tex]

[tex]\displaystyle\mathsf{x=\frac{10\:+\:20i}{2}\:=\frac{10(1\:+\:2i)}{2}\:=\:5(1+2i)}\:=5+10i}[/tex]

[tex]\displaystyle\mathsf{x=\frac{10\:-\:20i}{2}\:=\frac{10(1\:-\:2i)}{2}\:=\:5(1-2i)}\:=5-10i}[/tex]

Therefore, the correct answer is Option D: x = 5 ± 10i .

Part a) Use a system of inequalities to model the scenario

Let

x-------> represent babysitting hours

y-------> represent tutoring hours  

we know that

--------> inequality    

--------> inequality  

Part b) Use the model created in part A to create a graph representing Jeanne’s probable income earned and possible number of hours worked this week

we know that

--------> inequality  

This inequality represent Jeanne’s possible number of hours worked this week

Using a graph tool

the solution of this inequality is the shaded area

see the attached figure N  

--------> inequality    

This inequality represent Jeanne’s probable income earned this week

Using a graph tool

the solution of this inequality is the shaded area

see the attached figure N  

Part c) Analyze the set of coordinate values that represent solutions for the model created in part A. Choose one of the coordinates within the solution and algebraically prove that the coordinate represents a true solution for the model

we have the system of inequalities

--------> inequality  

--------> inequality  

the solution of the system of inequalities is the shaded area

using a graph tool

see the attached figure N  

Let

------> see the attached figure N  

The point belongs to the shaded area, so it is a system solution.

If the point is a solution, it must satisfy both inequalities.

Prove algebraically

substitute the value of x and y in the inequalities

inequality  

------> is ok

inequality  

-------> is ok

the point A satisfy both inequalities

therefore

the point A is a solution of the system

Answer:

the answer is B, Use the model created in part A to create a graph representing Jeanne’s probable income earned and possible number of hours worked this week.

Step-by-step explanation:

Answer: I cant see the question that you asked  putting it on the?

Step-by-step explanation:

Answer:

y=1

x=1/5

Step-by-step explanation:

Answer:

-36x+134xy

Step-by-step explanation:

-3x to the power of 2 is -9x

2x to the power of 2 is 4x

now you have -9x times 4x-3x^3y+5x^3y

3x to the power of 3y is 9xy

5x to the power of 3y is 125xy

now you have: -9x times 4x-9xy+125xy

which is: -36x+9xy+125xy

which is: -36x+134xy

Answer:

300 pretty sure

Step-by-step explanation:

You mention circles, so I assume the missing symbols are plus signs.

The first circle has equation x² + y² = 64 = 8², so it's centered at the origin and has radius 8. In polar coordinates, we take x = r cos(θ) and y = r sin(θ). Then this circle's equation is

(r cos(θ))² + (r sin(θ))² = 64

r² (cos²(θ) + sin²(θ)) = 8²

r = 8

Complete the square in the second circle's equation to determine its center and radius:

x² - 8x + y² = x² - 8x + 16 + y² = 16   ⇒   (x - 4)² + y² = 4²

so the second circle is centered at (4, 0) with radius 4. In polar coordinates, this equation becomes

(r cos(θ) - 4)² + (r sin(θ))² = 16

r² (cos²(θ) + sin²(θ)) - 8r cos(θ) + 16 = 16

r² - 8r cos(θ) = 0

r - 8 cos(θ) = 0

r = 8 cos(θ)

Determine where these two circles intersect:

8 = 8 cos(θ)

cos(θ) = 1

θ = arccos(1) + 2nπ

θ = 2nπ

where n is any integer. So both circles intersect once at (8, 0), which means they are tangent to one another, and since the second circle's radius is smaller, it must lie completely within the larger one.

The region between the two circles is the set

R = {(r, θ) : 0 ≤ θ ≤ π/2 and 8 cos(θ) ≤ r ≤ 8}

The area of R is given by the double integral,

[tex]\displaystyle \iint_R dA = \int_0^{\frac\pi2} \int_{8\cos(\theta)}^8 r \, dr \, d\theta[/tex]

or the single integral

[tex]\displaystyle \iint_R dA = \frac12 \int_0^{\frac\pi2} \left(64 - 64\cos^2(\theta)\right) \, d\theta[/tex]

Recall the half-angle identity for cosine:

cos²(x/2) = (1 + cos(x))/2

Then the area is

[tex]\displaystyle \iint_R dA = 16 \int_0^{\frac\pi2} \left(1 - \cos(2\theta)\right) \, d\theta[/tex]

[tex]\displaystyle \iint_R dA = 16 \left(\theta - \frac12 \sin(2\theta)\right) \bigg|_0^{\frac\pi2}[/tex]

[tex]\displaystyle \iint_R dA = \boxed{8\pi}[/tex]