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3 years ago

The point (8,-4) is shown,which is the location of (8,-4 A. Q B. R C. S D. T

Mathematics

2 answers:

Setler [38]3 years ago

7 0

Answer:

Step-by-step explanation:

Can't really explain

bonufazy [111]3 years ago

6 0

S

Directly across from coordinate

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25 feet in 4 seconds; 80 feet in x seconds write a proportion for each phrase and solve it

ozzi

Answer:

12.8 seconds

Step-by-step explanation:

Create a proportion where x is the number of seconds for 80 feet

$\frac{25}{4}$ = $\frac{80}{x}$

Cross multiply and solve for x

25x = 320

x = 12.8

So, the answer is 12.8 seconds

3 0

3 years ago

Plz helpppppppppppppppppppppppppppp

Irina-Kira [14]

Answer:

10= d r = 5

2×3.14×5= 31.4 inches!

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2 years ago

Read 2 more answers

What are the zeros of the quadratic function f(x) = 2x2 – 10x – 3?

Natasha2012 [34]

Answer:

$x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$ are zeroes of given quadratic equation.

Step-by-step explanation:

We have been a quadratic equation:

$2x^2-10x-3$

We need to find the zeroes of quadratic equation

We have a formula to find zeroes of a quadratic equation:

$x=\frac{b^2\pm\sqrt{D}}{2a}\text{where}D=\sqrt{b^2-4ac}$

General form of quadratic equation is $ax^2+bx+c$

On comparing general equation with b given equation we get

a=2,b=-10,c=-3

On substituting the values in formula we get

$D=\sqrt{(-10)^2-4(2)(-3)}$

$\Rightarrow D=\sqrt{100+24}=\sqrt{124}$

Now substituting D in $x=\frac{b^2\pm\sqrt{D}}{2a}$ we get

$x=\frac{(-10)^2\pm\sqrt{124}}{2\cdot 2}$

$x=\frac{100\pm\sqrt{124}}{4}$

$x=\frac{100\pm2\sqrt{31}}{4}$

$x=\frac{50\pm\sqrt{31}}{2}$

Therefore, $x=\frac{50+\sqrt{31}}{2},\frac{50-\sqrt{31}}{2}$

5 0

3 years ago

Read 2 more answers

Find the value of y.

Mariana [72]

Answer:

y = 50

Step-by-step explanation:

50 = the two numbesr

7 0

3 years ago

Frank is playing a game where he loses 1.5 points every time a critter eats a carrot. After two rounds of hte game, he lost 13.5

Tpy6a [65]

Answer:9

Step-by-step explanation: 13.5/1.5=9

8 0

3 years ago