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galina1969 [7]
3 years ago
15

♡please help dudes ♡​

Mathematics
2 answers:
padilas [110]3 years ago
6 0

Answer:

114°

Step-by-step explanation:

<h2><u>Find the angle </u></h2>

looking at the picture we can notice that the angle are lying on the same plane and are therefore regarded as corresponding angles. this is due to the fact that they are formed when a line intersects with a pair of parallel lines.

corresponding angles mean:

<em>angle A = angle B</em>

6x + 12 =3x + 63

make x the subject of formula:

6x - 3x = 63 - 12

3x = 51

x = 51/3

<u>x = 17°</u>

<u></u>

<h3><em><u>To find the angle A </u></em></h3>

place the value of x into the equation and solve :

A = 6x + 12

  = 6(17) + 12

  = 114°

<h3><u>the angle A is 114°</u></h3>

<u />

dimulka [17.4K]3 years ago
5 0

Answer:

114°

Step-by-step explanation:

<A=<B (corresponding angles)

6x+12=3x+63

6x-3x=63-12

3x=51

Dividing both sides by 3

x=17

Now

<A=6x+12

=6(17)+12

=102+12

=114°

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A box is filled with 9 brown cards, 2 blue cards, and 9 yellow cards. A card is chosen at random from the box. What is the proba
Andrei [34K]

Answer:

18/20

Step-by-step explanation:

There are 20 cards in total. The 9 yellow and brown cards makes 18 cards. Since we want the yellow or brown, the probability is 18 out of 20 cards.

6 0
4 years ago
Helium is used for balloons because it is less dense than air. This is what allows helium balloons to rise. Suppose a helium- ai
Kay [80]

Answer: Option A

About 0.02 pounds

Step-by-step explanation:

We know that density is defined as:

d = \frac{m}{v}

Where

d is the density

m is the mass

v is the volume

We want to calculate the helium-air mass of a spherical balloon and we know its density and the diameter of the balloon.

Then we can calculate its mass.

1) We use the diameter of the spherical globe to calculate its volume.

The volume of a sphere is:

V = \frac{4}{3}\pi r ^ 3

and

radius = \frac{diameter}{2}

So

V = \frac{4}{3}\pi(\frac{d}{2}) ^ 3\\\\V = \frac{4}{3}\pi(\frac{1}{2}) ^ 3

V= 0.5236\ ft^3

2) Use the density formula to find the mass

d = \frac{m}{v}

m = vd

m = (0.5236\ ft^3)*(0.04\ \frac{pound}{ft^3})\\\\m = 0.02\ pounds

<em>The answer is 0.02 pounds</em>

5 0
3 years ago
What is the solution for the system of linear equations?
monitta
The correct answer is A
Hope this helped :)
6 0
3 years ago
Is | 4x + 2| + 6 = 0 no solution, all real numbers, 0, or 2
Arisa [49]
Subtract 6 from each side. Then you have an absolute value equal to -6. But an absolute value is never negative. So there is no solution.
8 0
3 years ago
Solve the equation -5(s+30)=-17
zzz [600]

Answer:

s = -133/5 = -26.600 ⬇️

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (0 -  5 • (s + 30)) -  -17  = 0

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  -5s - 133  =   -1 • (5s + 133)

Equation at the end of step  3  :

 -5s - 133  = 0

Step  4  :

Solving a Single Variable Equation :

4.1      Solve  :    -5s-133 = 0

Add  133  to both sides of the equation :

                     -5s = 133

Multiply both sides of the equation by (-1) :  5s = -133

Divide both sides of the equation by 5:

                    s = -133/5 = -26.600

One solution was found :

                  s = -133/5 = -26.600

7 0
3 years ago
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