Special Triangle: Solve for x and y.

The mean if the scores was misread at 94 but it was 69 is 87.5

Mean is also known as average. It is mathematically represented as:

Mean  = Sum of data/Sample space

Given the following parameters

Mean = 88

Sample size = 50

Substitute

88 = Sum/50

Sum = 88(50)

Sum = 4400

If one of the scores was misread at 94 but it was 69, hence;

Sum + (94-69) = 4400
Sum + 25 = 4400
Sum = 4400 - 25
Sum = 4331
New mean = 4375/50
New mean = 87.5

Hence the mean if the scores was misread at 94 but it was 69 is 87.5

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the sum of all the angles in a triangle is 180°

65°+20°+x = 180°

85°+x = 180°

x = 95°

hope it helps...!!!

Answer:

A

Step-by-step explanation:

8-3=5

9/10 -4/10 =5/10

since 5/10 can be simplified to 1/2, it is A

Answer:

divide it into a triangle and a segment then use Pythagoras thereom

Answer:

The blank would be 2.

Step-by-step explanation:

Step 1. Notice that a equals 2.
Step 2. See that 7a means 7 x a
Step 3. See that theblank equals 7x2
Step 4. Get the answer of 14 (if needed)
I hope this helps! :)

Answer:

You would put 2 in the little box

Step-by-step explanation:

When there is a letter right next to a number, you are multiplying. The expression would be 7x2 giving you the answer of 14

Hope this helped!

Answer:

27 people can eat pizza at Jim's Party

Step-by-step explanation:

If you divided each pizza by 3, 3 people a pizza right, so 3 x 9 would get you the number of people that can eat pizza at the party, hope this helps! :D

A parallelogram has an area of 37 square feet. If the height of the parallelogram is 4 feet, how many feet is the base?

The base of the given parallelogram is

Area of a parallelogram is defined as the product of its base and height respectively. Mathematically;

→ Area of parallelogram = base * height

By substituting the given values in the formula, we get the following results:

→ 37 = base * 4

→ base = 37/4

→ base = 9.25

Hence, the base of the given parallelogram is 9.25 feet.

Let's know something more about a parallelogram.

What is a parallelogram?

A parallelogram is a special type of quadrilateral whose opposite sides are parallel and hence its opposite angles are also parallel.

What is the formula of a parallelogram?

Let ‘B’ be the base and ‘H’ be the height of a parallelogram then its area is given by,

→ Area of parallelogram = B * H

What is unit of parallelogram?

The unit of a parallelogram is square units.

D. 31                                            ( roundest to the nearest whole number)

[tex]\dashrightarrow \ \sf \dfrac{683}{22}[/tex]

[tex]\dashrightarrow \ \sf 31\dfrac{1}{22}[/tex]

[tex]\sf \dashrightarrow \ 31.04545[/tex]

Answer:

Please also attach the figure or the pattern like this.

Answer:

I would say about 60%

Step-by-step explanation:

since odd numbers are 3 of the 5 total cards 3/5 gets you 60% likely to pull qn odd number.

Answer:

right answer

Step-by-step explanation:

A guy name Mac answered a similar question so it’s right.

Answer:

20 m^2

Step-by-step explanation:

Area of base rectangle + area of triangle atop the rectangle = total area

8x 2                                 + 1/2 4 * 2

 16               +        4    = 20 m^2

Answer:

no false it has infinite

Answer:

No, They are complementary

Step-by-step explanation:

Supplementary is when the angles add up to 180 degrees.

Complementary is when the angles add up to 90 degrees.

Answer:

No it isn’t a supplementary angle because supplementary angles add up to 180 degrees. 81+9=90

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

The solution of the linear equation is x = 0.

An equation is a mathematical statement, which has an equal sign (=) between the algebraic expression.

Linear equations are the equations of degree 1.

The given linear equation is;

[tex]\rm 2(x-3)+ 9=3(x+ 1) +x[/tex]

The value of x is determined in the following steps given below.[tex]\rm 2(x-3)+9=3(x+1)+x\\\\2x-6+9=3x+3+x\\\\\ 2x+3=4x+3\\\\3-3=4x-2x\\\\0=2x\\\\x=0[/tex]

Hence, the solution of the linear equation is x = 0.

To know more about linear equations click the link given below.

brainly.com/question/5085290

Answer:

x=0

Step-by-step explanation:

...

We can decompose the composite figure into a triangle, a rectangle, and a semicircle in order to find the area of the composite figure.

The space filled by a flat form or the surface of an item is known as the area.

The number of unit squares that cover the surface of a closed-form is the figure's area. Square centimeters and other similar units are used to measure area.

The area of the composite figure is equal to the sum of area 1, area 2, and area 3

Area 1 - triangle

Area 2 - rectangle

Area 3  - semicircle

We can decompose the composite figure into a triangle, a rectangle, and a semicircle in order to find the area of the composite figure.

Hence option d is correct.

To learn more about the area refer to the link;

https://brainly.com/question/11952845

Answer:

option D

Step-by-step explanation:

Check the picture below.

[tex]\cfrac{18}{18+x}~~ = ~~\cfrac{19.2}{38.4}\implies \cfrac{18}{18+x}~~ = ~~\cfrac{19.2}{2(19.2)}\implies \cfrac{18}{18+x}~~ = ~~\cfrac{1}{2} \\\\\\ 36=18+x\implies 18=x[/tex]

Answer:

make me brainliest plsssssssss

Step-by-step explanation:

A

Answer:

C He can return to a career that is expected to grow faster than most industries.

Step-by-step explanation:

Answer:

It's C, Not Capping

Step-by-step explanation:

Got 100% On The Unit Test Review :)

Answer:

This isnt much of an answer just something to help-

Try doing A(1 + B)^I

Step-by-step explanation:

As the points A, B, C and D lie on a circle, So, ABCD is a cyclic quadrilateral...

As, Sum of opp. ∠s in a cyclic quadrilateral = 180°

∴ ∠ADC + ∠ABC = 180°

=> ∠ADC + 100° = 180° => ∠ADC = 80°

Now,

Sum, of all angles in a traingle = 180°

In ΔACD, ∠CAD + ∠ADC + ∠ACD = 180°

=> ∠CAD + 80° + 40° = 180°

=> ∠CAD = 180° - 80° - 40° = 60°

As CT is tangent to the circle at the point C and CD is a chord of the circle, So

∠DCT = ∠CAD........(∠s in alternate segments are equal,,So ∠CAD = 60°)

=> ∠DCT = 60°

Answer:

See below ~

Step-by-step explanation:

∠ADC

∠DCT

Answer:

44 square units

Step-by-step explanation:

We can split the figure into 4 separate figures :

Area of the left triangle

Area of the right triangle

Area of the rectangle

Area of the right triangle

Area of the figure

Answer:

Step-by-step explanation:

Remark

First of all, all the units must be the same. Inches is probably the best unit to use.

Second the base line at the bottom must be completed. How long is it

Givens

Left side = 48 inches

Top = 3 yards

Right side = 5 feet.

Bottom = 1 yard + top

Bottom = 1 yard + 3 yards

Bottom = 4 yards

Perimeter = 144 + 60 + 108 + 48

Perimeter = 360 Inches.

Answer

Perimeter = 360 inches

Perimeter = 360 / 12 = 30 feet     There are 12 inches in a foot

Perimeter = 360 / 36 = 10 yards.  There are 36 inches in a yard

The question does not specify the units. Probably inches would work, but if a computer is marking your answer and you get it wrong, you are going to have to try the other two answers in turn.

Answer:

d= 50m

Step-by-step explanation:

I used the Pythagorean Theorem to solve this.

30^2+ 40^2= x^2

900+1600=x^2

2500=x^2  

x=50

Answer:

Step-by-step explanation:

                multiplying the first bracket with the second (step by step)

          = 1( 5z + 8z^2 - z^3) +2z ( 5z + 8^2 - z^3 )+3z^3 (5z + 8^2- z^3)

          = 5z + 8z^2 - z^3 + 10z^2 + 16z^3 - 2z^4 + 15z^4 + 24z^5 -3z^6

          =5z + 16z^2 + 15z^3 + 17z^4 + 24z^5 -3z^6