Mathematics High School

Help me solve this problem please

Help Me Solve This Problem Please

Answers

Answer 1

Answer:

CD = 45

Step-by-step explanation:

CE = 180

( x + 6 ) + ( 4x - 21 ) = 180

5x - 15 = 180

5x = 195

x = 39

substitute x in CD

CD = x + 6

CD = 39 + 6

CD = 45

Related Questions

9. What is the inverse of y = 10x -2?

Answers

Answer:

Step-by-step explanation:

F-^1(x)+x/10+1/5

Step-by-step explanation:

Find the sides and angles please help me

Answers

Answer: if this uses the Pythagorean theorem then it’s the square root of 83.24

Step-by-step explanation: the formula is a^2+b^2=c^2 the hypotenuse is c^2

Multiple Choice

Look at the graph.

The graph shows a line through the points left parenthesis negative 1 comma negative 2 right parentheses and left parenthesis 2 commas 1 right parenthesis.

The slope of the line is _______.
A. positive
B. negative
C. zero
D. undefined

Answers

Answer:

the slope is POSITIVE (answer A)

Step-by-step explanation:

The line goes through: (-1, -2)  and ( 2, 1)

Then the slope can be calculated as:

slope = (y2 - y1) / (x2 - x1)

in our case:

slope = (1 - -2) / (2 - -1) = (1 + 2) / (2 + 1) = 3 / 3 = 1

Therefore, the slope is POSITIVE (answer A)


Sam paid £8 for two footballs.
One football cost £2 more than the other
What was the cost of the more expensive football?
[2 marks]
Answer

Answers

Answer:

£6    you do £8-£2= £6

Step-by-step explanation:

Answer:

£8-£2=£6

Step-by-step explanation:

Apply the distributive property to create an equivalent expression 4(x-2+y)

Answers

Answer:

4 * x

4 * -2

4 * y

4x-8+4y

Step-by-step explanation:

Answer:

4x+4y-8

Step-by-step explanation:

(✿◡‿◡) <-- she wants Brainliest

What are the next three terms in the sequence? -112, -129, -146, ___________

Explain your answer.

Answers

Answer:

-163, -180, -197

Step-by-step explanation:

-146--129=-17

the difference of them is 17 so keep adding it

-163,-180,-197

The recursive formula of this sequence is:

a n =-17n-95

math pls help and thanks​

Answers

Answer:

Is red 3.33 triangle

What is the value of x?​

Answers

Answer:

25

Step-by-step explanation:

What is 48901x120412/12321 with a fraction of 6/9 + 29181041/21841x2912311203? It was one of my math questions couldn't find it online soooo??

Answers

4468886443222234578889953

If ƒ(x ) = x 2 + 1 and g(x ) = 3x + 1, find 2 · ƒ(4).

A. 34
B. 18
C. 65

Answers

Answer: The answer would be (B) 18

Step-by-step explanation: Have a brilliant day of learning!

pls help will give brainliest when i can ​

Answers

Angle 1 is corresponding to angle 5.
This is where one angle has the same relative position as another angle.

What is the slope of the equation that passes through the points
(-5,4) and (5,2) ?

Answers

Answer:

[tex] - \frac{2}{10} [/tex]

or

-0.2

El 10% de que numero es 32

Answers

3.2 is 10 % of 32. Give me a like if I helped please

The top of a ramp is 4 feet above the ground. The ramp makes a 21.3 degree angle with the ground. What is the length of the ramp

Answers

Answer:

Total ramp system length in feet: Includes the minimum number of 5′ x 5′ resting platforms and the 5′ x 5′ platform at the top of the ramp.

Step-by-step explanation:

hope this helps!

What is m ∠ ZUB?
23.7°
32.8°
33.5
57.2°

Answers

Answer:

23 .7 ruim

57.2 sol

32 .8 mais ou menos

tchau bj

Solve −3(7n+3)<6n. Write the solution using set-builder notation.

Answers

-1/3 is less than n.

you distribute and solve for n.

The set builder notation of the inequality  - 3(7n + 3) < 6n is,

{n : n ∈ R, n > - 3 }.

What are inequalities and their types?

Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The symbol a < b indicates that a is smaller than b.

When a > b is used, it indicates that a is bigger than b.

a is less than or equal to b when a notation like a ≤ b.

a is bigger or equal value of an is indicated by the notation a ≥ b.

Given, An inequality - 3(7n + 3) < 6n.

Now, distributing the terms we get,

- 21n - 9 < 6n.

- 21n - 6n < 9.

- 27n < 9.

27n > - 9.          (Think of moving the variable to the other side to make it

                                                                                                        positive).

n > - 27/9.

n > - 3.

learn more about inequalities here :

https://brainly.com/question/28823603

#SPJ2                                                                                                                                      

Giving brainliest to whoever comments the right answer first

Answers

Answer:j

Step-by-step explanation:

Will give brainliest! What is the range for the third size of the triangle 2,10?

Answers

Answer:

8 < x < 12

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is in the range

difference of sides < x < sum of sides , that is

10 - 2 < x < 10 + 2

8 < x < 12

Can somebody help me with this math question, all you have to do is answer the equation, then it's described, and then it draw it out I'll give you 100 points and a Brainliest

Answers

Answer:

X= - 2

Step-by-step explanation:

-3 (5x+6) - 3x = 6-6x

Remove the parentheses

-15x-18-3x=6-6x

Collect the like terms

-18x-18=6-6x

Move the variable to the left-hand side and change its sign

18x+6x=6+18

Collect the like terms

-12x=24

Divide both sides

X=-2

9. Select a set of corresponding angles.
A Angles M and D
B Angles B and L
C Angles C and J
D Angles K and A

Answers

Answer:

A. Angles M and D

Multiply the polynomials. (x-3)(x^2+2x+1)

Answers

Answer:

[tex]x^{3} -x^{2} -5x-3[/tex]

Step-by-step explanation:

you use distributive property for this, or you can do the box method

distributive:

[tex]x(x^{2} +2x+1)-3(x^{2} +2x+1)[/tex] (you multiply the second equation by x-3)

then distribute, or multiply everything

[tex]x^{3} +2x^{2} +x-3x^{2} -6x-3[/tex]

then collect like terms

[tex]x^{3} -x^{2} -5x-3[/tex]

Answer is x^3-x^2-5x-3.
See attached photo.

Joe is 6 feet tall and cast a 3 foot shadow. He is standing next to a building that cast a shadow that is 20 feet long. How tall is the building.​

Answers

Answer:

40 feet

Step-by-step explanation:

Answer:

40 feet tall

Step-by-step explanation:

6/2 =3

?/2 =20

*2    *2

? = 40

you do inverse operations because 6 divided by 2 is 3... the ? is the variable for how tall the building is... ? divided by 2 = 20 so you multiply 2 and 20 to get the total height

Can someone identify this

Answers

Answer:

no entindendol ingels

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

square 6, which is 36. then square 10, which is 100. then do:

100-36=64

take the square root of 64, which is 8.

What does q equal?Please help me.

Answers

11/8 > q is the answer

A circle is dilated by a scale factor of 1.5 to create a new circle. The area of the new circle is 1.5 times the area of the original circle.

True or false??

Answers

Given:

The given statement is "A circle is dilated by a scale factor of 1.5 to create a new circle. The area of the new circle is 1.5 times the area of the original circle."

To find:

Whether the given statement in true or false.

Solution:

Area of circle is

[tex]A=\pi r^2[/tex]

Where, r is the radius of the circle.

Let [tex]r_1[/tex] be the radius of the original circle. So, the area of the circle is

[tex]A_1=\pi (r_1)^2[/tex]

The circle is dilated by a scale factor of 1.5 to create a new circle. So, the radius of the new circle is:

[tex]r_2=1.5r_1[/tex]

The area of the new circle is

[tex]A_2=\pi (r_2)^2[/tex]

[tex]A_2=\pi (1.5r_1)^2[/tex]

[tex]A_2=2.25\pi (r_1)^2[/tex]

[tex]A_2=2.25A_1[/tex]

The area of the new circle is 2.25 times the area of the original circle.

Therefore, the given statement is false.

Solve for X. Please solve all four. First person to do so will get brainliest.

Answers

Answer:

x=-12

x=10

x=-8

x=-5

Step-by-step explanation:

Answer:

1.x=-12

2.x=10

3.x=-8

4.x=-5

Step-by-step explanation:

what is equivalent to 10x + 80
A) 5(2x + 40) B) 10(x + 8) C) 5(2x + 80) D) 10(10x + 8)

Answers

Answer:B ithink

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

10(x + 8)

10x + 80

10× X and 10 × 8

Which figure will this net make

Answers

Answer:

C

Step-by-step explanation:

Rectangle base, tiny triangle sides, but rectangle top

need help ASAP.
what is the best estimate for the value of the expression?
​

Answers

Answer:

11

Step-by-step explanation:

u do 4x5 which is 20

What is the following product?

Answers

Answer:

the image is not opening

Answer:

The answer is the third one :)

Step-by-step explanation:

I don't know how to explain it sorry

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