Find the measure of angle x in the figure below:
Find the measure of angle x in the figure below: - 1

Answers

Answer 1
Answer: First of all, it is known that adding together all the angles of a triangle they have to make 180degrees.
On the lower triangle we know two angles which added together make 110 degrees, which means that the third angle is 70 degrees. There is also a law that the opposite angles of a cross are the same. So the angle is 70degrees.
Answer 2
Answer: Total measure of angles in triangle equals 180°. 
55°+55°=110°
180°-110°=70°

So the missing angle in bottom triangle is 70°.
x=70° 

Because x with third angle in bottom triangle creates vertical angle.

:)

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Solve the problem. The formula d = rt gives the distance traveled in time t at rate r. If a bicyclist rides for 2.3 hours and travels 41 miles, what was her average speed? A. 9.43 miles per hour B. 5.6 miles per hour C. 17.83 miles per hour D. 38.7 miles per hour

Answers

C. 17.83 miles per hour
Instead of using D=R*T use D/T=R
D=41
T=2.3
41/2.3=17.83

C.) 17.83 because if d=rt and d= 41 and t= 2.3, then the rate or speed is 17.83

What is the ratio 8 to 72 expressed as a fraction in simplest form

Answers


8/72 then you simplify then 8 and 72 are both divisible by 8 so 8÷8=1 and 72÷8=9 so your simplified fraction for the ratio 8/72, is 1/9
8 and 72 are both divisible by 8 and 8 divided by 8 =1and 72divided by 8=9 so now you have to simplfy your fraction so when you simplfy your fraction it should look like this 1/9.

August hosted two dinner parties for his friends. Twenty guests attended the first party, and twenty-six guests attended the second party. What is the percentage increase of the number of guests from the first party to the second party?

Answers

Answer: 30%


Step-by-step explanation:

The first step is to find the increase in numbers

26-20= 6

Now you find the percent. This means you're looking for the percent 6 is equal to when compared to 20. The easiest way is to divide the increase by the original number

6/20= 0.3

To convert that to percent, multiply it by 100

0.3 * 100= 30%

There was a 30% increase.

If the roots of a quadratic equation are real,irrational,and unequal,the discriminant could have a value of1)1
2)0
3)8
4)-6
Help me out guys.

Answers

Answer:

8

Step-by-step explanation:

The condition for the discriminant b² - 4ac is

If b² - 4ac > 0 then roots are real, irrational and unequal

If b² - 4ac > 0 and a perfect square, roots are real, rational and unequal.

Thus

b² - 4ac = 8

Answer:

3) 8

Step-by-step explanation:

Real and unequal:

B² - 4AC > 0

Irrational: B²-4AC not a perfect square

Which circles have a circumference of 20pi units? Choose all answers that are correct. a) a circle with a diameter of 40 units; b) a circle with a radius of 10 units; c) a circle with a diameter of 20 units; d) a circle with a radius of 20 units?

Answers

So, keep in mind that for a circle, circumference equals pi times the diameter.  So, C=pi*d.  In this problem, 20pi=pi*d.  We can solve for d by dividing both sides by pi, for inverse operations: 20pi/pi=(pi*d)/pi.  d=20.  So, the diameter is 20 units.  Finally, keep in mind that the radius is half the diameter.  So, the radius is 20/2 units, or 10 units.

Answer: B, C

How many solutions does the system of equations have? A.
The system has exactly one solution.

B.
The system has no solution.

C.
The system has infinitely many solutions.

Answers

The answer to your question is A. The system has exactly one solution.

Hi Brainiac


x+y=3

3x+3y=15

We need to solve for x+y=3 for x

So let's start by adding -y to both sides

x+y-y=3-y

x= -y+3

Now we need to substitute -y+3 for x in 3x+3y=15

3x+3y=15

3(-y+3)+3=15

9=15

Next, add -9

9-9 = 15-9

0=6

Answer: No Solutions


I hope that's help:0