What is the measure of \angle A in the triangle above?

Answer:

Angle A = 15°

use angle properties of triangle to solve this.

Step-by-step explanation:

Given Angle CBD = 30,

Angle ABC + Angle CBD = 180 (Sum of Angles on the same straight line)

Angle ABC + 30 = 180

Angle ABC = 180 - 30 = 150

Since Angle AB =~ BC,

Angle A = Angle C

Let angle A and C be x.

Angle A + Angle C + Angle ABC = 180 (Sum of Angles in a triangle)

[tex]x + x + 150 = 180 \\ 2x + 150 = 180 \\ 2x = 180 - 150 \\ 2x = 30 \\ x = 15[/tex]

Therefore Angle A = 15 degrees

Answer:

4/1/4

Step-by-step explanation:

48÷6

=8-3 3/4

=4/1/4

Answer:

actual area = 900 square feet

ratio = 1cm2 : 36ft2

Step-by-step explanation:

square room

area = 25cm2

1 side =  √ 25

         =  5cm

1cm = 6ft

5cm = 5 x 6

      = 30ft = 1 side

actual area = 30 x 30 = 900ft

ratio = square cm : square feet

       = 25     :     900  ( simplify both ratio )

      = 1cm2  :  36ft2

Answer:

slope is 2

Step-by-step explanation:

Pick any two points

say point (0,0) and point (2, 4)

to find slope, subtract the x and y coordinates as a fraction.

y on the top, x on the bottom

y/x = (4 -0)/ (2-0) = 4/2 = 2

Answer:

line segment EF EH EG EI

Step-by-step explanation:

Answer:

2 to the power of 2 times three to the power of 2

3 to the power of 2 times 5 to the power of 2

6 to the power of 2 times 7 to the power of 3

7 to the power of 2 times 5 to the power of 3

3 to the power of 2 times 5 to the power 2 times 7 to the power of 2

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Answer:

−28r−28

Step-by-step explanation:

−4(7r+7)

=(−4)(7r+7)

=(−4)(7r)+(−4)(7)

There's a theorem for this: the angle made by two intersecting secants of a circle has a measure equal to half the difference of the arcs the secants intercept. In this case,

x = (130° - 30°) / 2 = 50°

Answer:

If you put the equation into go__ogle you will get an explanation on how to solve

Step-by-step explanation:

Answer:

(x-1) (5x+7)

Step-by-step explanation:

I factored using the berry method

Answer:

A. 20ft

Step-by-step explanation:

Answer:

d. 98.5

Step-by-step explanation:

Triangles:

5 x 4 = 20/2 = 10

Circle:

5² x 3.14 = 78.5

Add both of them 98.5

Answer:

The correct answer is C. That problem best represent x - 15 =60.

Answer:

C

Step-by-step explanation:

So lets look at the first equation.

This would represent 60-15=x

This is because 60 shells minus 15 shells she gave away.

Next is B, whihc is also 60-15=x

This is because Mr yungs brother is 60 years old and mr yung is 15 years younger.

Next is c, whihc is 60+15=x

This is because they had 60, gave 15 already, and want to find out what they started with.

FInally we are left with d.

This is 15+x=60

Well...none of those look like x-15=60

But lets go back to c:

60+15=x

Lets try to rwwrite this.

Subtract 15 from both sides, and you get:

60=x-15

Just make this proper by putting the x-15 before the 60:

x-15=60

That looks like x-15=60

Now we know our answer!

C

Hope this helps ;)

Answer:

Least= -6

Middle= -3

Greatest= -2

Answer:

In simplified form, sin D is;

4/5

Step-by-step explanation:

The given figure and dimension parameters in the question are;

Triangle ΔDEF is a right triangle

The length of leg [tex]\overline{EF}[/tex] which is opposite side to the reference angle = 20

The length of segment [tex]\overline{ED}[/tex] which is the hypotenuse side of the right triangle ΔDEF = 25

The length of segment [tex]\overline{DF}[/tex] which is adjacent side to the reference angle = 15

By trigonometric ratios, we have;

[tex]sin\angle X = \dfrac{Opposite \ leg \ length}{Hypotenuse \ length}[/tex]

Therefore, we have;

[tex]sin\angle D = \dfrac{Opposite \ leg \ length}{Hypotenuse \ length} = \dfrac{20}{25} = \dfrac{4}{5}[/tex]

∴ In simplified form, sin(D) = 4/5.

Answer:

12x^3+x^2-9x+2

Step-by-step explanation:

(4x-1)(3x-2)(x+1)

(12x^2-8x-3x+2)(x+1)

(12x^2+(-8x-3x)+2)(x+1)

(12x^2-11x+2)(x+1)

12x^2(x+1)-11x(x+1)+2(x+1)

12x^3+12x^2-11x(x+1)+2(x+1)

12x^3+12x^2-(11x^2+11x)+2(x+1)

12x^3+12x^2-11x^2-11x+2x+2

12x^3+(12x^2-11x^2)+(-11x+2x)+2

12x^3+x^2-9x+2

Answer:

Step-by-step explanation:

Opposite sides of a parallelogram are congruent:

Answer:

5

Step-by-step explanation:

The median of all the answers equal up to 5.

Answer:

Question 9

Name the ordered pairs in the table: 3, 4, 5, 6, 7

Ordered pairs: (1,3), (2,4), (3,5), (4,6), (5,7)

Graph the equation: the attachment

Step-by-step explanation:

I don't know how to do questions 11 and 12.

Also sorry if these aren't correct.

Answer:

I think (A) One parallel line.

Step-by-step explanation:

Because there's two and simple math you would divide (width÷1).

Hope this helps! Have a good day/or night!

Answer:

She's getting paid minimum wage, in debt, and struggling in college.

Answer:

223 I guess

if wrong sorry bro

Answer:

76%

Step-by-step explanation:

Convert the fraction 19/25 into decimal

19/25 = 0.766

Multiply the decimal by 100: 0.76 × 100 = 76%

Answer:

76%

Step-by-step explanation:

19/25×100

76%

In order for you to get the percentage, you multiply the fraction of gotten out of total to 100

Answer:

y=4+x  

Step-by-step explanation:

Answer: A.) y=4+x

Step-by-step explanation: Took the test :P

Answer:

interest paid = $206.25

course = $1,875.00

total = $2,081.25

Step-by-step explanation:

Interest = Principal x Rate x Time

I = 1875(.055)(2)

I = 206.25

Answer: 8.

This is because for every 2 years the 10 foot tree will grow one foot and for every year the 8 foot tree will grow one foot.

It takes 8 years fort the 10 ft tree to be:16

This is because you do:

2+2+2+2+2+2+2+2=16

It takes 8 years for the 8 food tree to be: 16

You do:

2+2+2+2+2+2+2+2=16 and we added it 8 times and in 8 years it will be 16

- - Hope this helps! - -

Heart or brain me!

One pair of supplementary angles in the picture : Angle 1 and Angle 5

Hope this helps!

Step-by-step explanation:

A(0,3) B(2,2)

[tex] \frac{y - 2}{4 - 2} = \frac{x - 2}{0 - 2} \\ \frac{y - 2}{2} = \frac{x - 2}{ - 2} \\ y - 2 = - x + 2 \\ y = - x + 4[/tex]