3 years ago

Can someone please help!!

Mathematics

1 answer:

leva [86]3 years ago

8 0

Answer:

Step-by-step explanation:

the last one

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Help plz plz plz plz .

nikklg [1K]

The y intercept is where the line hits the verticals line of the graph. Hope this helps!

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3 years ago

An airplane leaves New York to fly to Los Angeles. It travels 3,850 km in 5.5 hours. What is the velocity of the airplane?

Ilya [14]

Answer:

C. 700 km/hour

Step-by-step explanation:

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3 years ago

What are the solutions to the quadratic equation below x^2+20x+100=7

aleksandrvk [35]

First you must have the quadratic equal to zero. In order to do this you must subtract 7 to both sides

x^2 + 20x + (100 - 7) = 7 - 7

x^2 + 20x + 93 = 0

Now you must find two numbers who's sum equals 20 and their multiplication equal 93

Are there any? NO!

This means that you have to use the formula:

$\frac{-b±\sqrt{b^{2} - 4ac} }{2a}$

In this case:

a = 1

b = 20

c = 93

$\frac{-(20) plus/minus\sqrt{20^{2} - 4(1)(93)} }{2*1}$

$\frac{-20 plus/minus\sqrt{400 - 372} }{2}$

$\frac{-20 plus/minus\sqrt{28} }{2}$

^^^We must simplify √28

√28 = 2√7

so...

$\frac{-20 plus/minus 2\sqrt{7} }{2}$

simplify further:

$-10 plus/minus\sqrt{7$

-10 + √7

-10 - √7

***plus/minus = ±

Hope this helped!

~Just a girl in love with Shawn Mendes

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3 years ago

What is the decimal multiplier to decrease by 3.9%?

soldier1979 [14.2K]

Answer:

0.495

Step-by-step explanation:

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3 years ago

Read 2 more answers

In a right triangle , one angle measure 90 and the other two angles measure a total of

shepuryov [24]

Both of the other angles should be 45. 180-90=90. 90 divided by 2 equals 45

6 0

3 years ago