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Alborosie
3 years ago
13

Is the following statement true or false? Parallel lines do not intersect.

Mathematics
2 answers:
hammer [34]3 years ago
5 0

Answer:

True

Step-by-step explanation:

Parallel lines go straight on forever and ever without intersection

Luden [163]3 years ago
5 0

Answer:

The statement is true.

Step-by-step explanation:

parallel lines don't intersect. An example is shown in the picture

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Is the percent increase from 50 to 70 equal to the percent from 70 to 50explain.
Mrac [35]

Answer:

20/50=40%  So 50 to 70 percent increase is 40%.

20/70=about 28.57% decrease for 70 to 50.

So they aren't the same because the hundred percent are different numbers in this case.

8 0
3 years ago
Kylie has 5 quarts of orange juice to fill some empty glasses. She fills each glass with 1/4 quart of orange juice. How many gla
baherus [9]

Answer:

She fills 5/4 or 1 and 1/4 glass

Step-by-step explanation:

1/4 * 5=5/4

4 0
3 years ago
Find the roots of the equation <br> x^2 +7= 2x<br> express your answer in simplest a +bi form
Fittoniya [83]

x^2+7=2x\\\\\implies x^2 -2x +7 =0\\\\\text{Apply quadratic formula,}~ x =\dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\\\\\text{in this case,}~ a = 1, b= -2 ~\text{and}~ c = 7\\\\\\x= \dfrac{-(-2) \pm \sqrt{(-2)^2 -4\cdot 1 \cdot 7}}{2\cdot 1}\\\\\\\implies x =\dfrac{2 \pm \sqrt{-24}}{2}\\\\\\\implies x = \dfrac{2 \pm i\sqrt{24}}2\\\\\implies x =\dfrac{2 \pm i2\sqrt{6}}2\\\\\implies x = \dfrac{2\left(1 \pm i  \sqrt 6\right)}2\\\\\implies x = 1 \pm i\sqrt 6\\\\

\text{Hence,}~ x = 1-i\sqrt 6 ~\text{or}~ x = 1+i\sqrt 6

7 0
3 years ago
It takes a plane 3.5 hours to fly 2,345 miles and 2 hours to fly 860 miles
Ilya [14]

Answer:

See below

Step-by-step explanation:

a. How fast does the plane fly during the first leg of the trip?

  • 2345/3.5 = 670 mph

b. How fast does the plane fly during the last leg of the trip?

  • 860/2 = 430 mph

c. What system of equations might be helpful in this scenario?

<u>s - speed of the plane, w - speed of the wind, equations:</u>

  • s + w = 670
  • s - w = 430

d. Solve this system of equations using the best method.

Add the equation together to get:

  • 2s = 1100 ⇒ s = 550 mph
  • w = 550 - 430 = 120 mph

e. How fast is the wind?

  • 120 mph as solved above

f. How fast does the plane fly without any wind?

  • 550 mph as solved above
3 0
3 years ago
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If Harriet rolls the number cube 39 times how many times can she expect to roll a 3 or 4?
Damm [24]
Two out of thirty nine hope this helped 
4 0
3 years ago
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