Help needed. PLS EXPLAIN

a = 251.33 (circumference of triangle)

b = 40 degrees (isosceles triangle)

c = 40 degrees (isosceles triangle)

d = 100 degrees (40+40=80, 180-80=100)

I hope this helps :)

Answer:

100

Step-by-step

all you have to do is add 20+30=50+50=100

volume is all the numbers added up

Answer:

The answer is 25.

Step-by-step explanation:

You can use the pythagorean theorem to figure out this question.

Answer:

what is the question?

Step-by-step explanation:

Answer:

Do 134 ÷ 2 = 67

Step-by-step explanation:

Answer:      The answer is A. 5.0 x 10-5

i hope it helps. Have a nice day                                                                                                                  

Step-by-step explanation:

the decimal number 0.00005 written in scientific notation is 5 × 10-5

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10

. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

5×10^6

area = base times height, or 8 cm times 4 cm, or 32 cm^2

Answer:

x = 3

Step-by-step explanation:

These angles are vertical angles. Vertical angles equals to on another but on the opposite side. Since they equal to another you do:

(10x + 1) = (12x - 5)

Add 5 on both sides:

10x + 6 = 12x

Subtract 10x on both sides:

6 = 2x

Divide 2 on both sides:

3 = x

Answer:

(10x+1)°=(12x-5)°. [vertically opposite angle]

1+5=12x-10x

6= 2x

3=x

therefore,x=3

Answer:

she didn't use distribution on the beginning of the equation

Step-by-step explanation:

6(x + 3) = 21

6x + 18 = 21

6x (+18 - 18) = 21 -18

6x = 3

6x/6 = 3/6

x = 0.5

6 (0.5 + 3) = 21

6(3.5) = 21

21 = 21

Answer:

I think C is the correct answer

Answer:

c=90/2

Step-by-step explanation:

the center of the circle is your starting point and if you draw a line straight down the middle then mark your starting point then the circle is cut in 2 then theres your answer

Answers:

Those values are exact. They approximate to:

10*sqrt(13) = 36.0555

10*sqrt(5) = 22.3607

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

Explanation:

Part (a)

If the unknown third side is the hypotenuse then we need to find the value of c when a = 20 and b = 30.

Apply the pythagorean theorem

a^2 + b^2 = c^2

20^2 + 30^2 = c^2

400 + 900 = c^2

1300 = c^2

c^2 = 1300

c = sqrt(1300)

c = sqrt(100*13)

c = sqrt(100)*sqrt(13)

c = 10*sqrt(13)  .... exact length

c = 36.0555 ...... approximate length

------------------------------------

Part (b)

If the third side is not the hypotenuse then that must mean c = 30 is the hypotenuse as this side is larger than the 20 cm side. The hypotenuse is always the longest side.

Let a = 20 be the known leg. Let's find the other unknown leg b using the pythagorean theorem.

a^2 + b^2 = c^2

20^2 + b^2 = 30^2

400 + b^2 = 900

b^2 = 900-400

b^2 = 500

b = sqrt(500)

b = sqrt(100*5)

b = sqrt(100)*sqrt(5)

b = 10*sqrt(5) ..... exact length

b = 22.3607 .......  approximate length

Answer:

what do u do

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

66+24

Step-by-step explanation:

you just have to add them

Answer:

78 and 12

Step-by-step explanation:

I hope this is right it was a little tricky to find out.

Hope this helps!

Answer:

3 runners

Step-by-step explanation:

As shown in the graph, there are three x's associated with the 1/2 mile warm-up. Hope this helped!

Answer:

there are 3 runners that ran the 1/2 of a mile for their warm up.

Step-by-step explanation:

if you look at the picture below you will see the number 1/2 at the end and when you look  above that there are 3 x's so therefore the answer is 3 runners.  

≪ ≫

Answer:

4

Step-by-step explanation:

Answer: 4

Step-by-step explanation:

Answer:

its A and 4 good luck!!!!!!

Answer:

A. 13 + t = 17 Value of t: t = 4

Step-by-step explanation:

My steps:

1) rewrite: 13 + t = 17

2) subtract 13 on each side on equal sign:

13 -13 + t = 17 - 13

3) Solve: t = 4

I hope this helped, good luck!

Answer:

look at the picture i have sent

Answer:

A = (1/2)Pa = Pa/2

You can multiply both sides by 2 to eliminate the fraction on the right side:

2A = 2(Pa/2) = Pa

Then divide both sides by a (or multiply both sides by 1/a) to leave P alone on the right side:

(2A)(1/a) = 2A/a = (Pa)(1/a) = P

Rewriting:

P = 2A/a

You could also have divided by a first then multiplied by 2; which you should do first does not matter in this example.

Step-by-step explanation:

Answer:

Remember The distance, speed, time triangle

Step-by-step explanation:

Formula is

Speed x time=distance

Distance divided by speed=time

distance divided by time=speed

Answer:

-3

Step-by-step explanation:

To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite.

                 -From Khan Academy-

Answer:

3.3 was as far of miles. .