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4 years ago

Which is the definition of a ray ?

Mathematics

2 answers:

lora16 [44]4 years ago

8 0

Answer:

A ray is part of a line, has one fixed endpoint, and extends infinitely along the line from the endpoint.

Step-by-step explanation:

Scilla [17]4 years ago

6 0

Step-by-step explanation:

Ray has only one starting point. It is that portion of the line which has a end point and goes straight to the direction of infinity. It has no end point.

For example, Sun rays.

They originate from the sun which is the starting point and they travel to infinity.

Hence the definition of rays is:

A ray is the part of the line which begins from a particular point which is known as the end point and then it extends in one particular direction endlessly.

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Katie rode her bike 3/5 jake rode. 5 times more than katie how many more did jake ride

lidiya [134]

Jake rode 3 because you multiply 5 by 3/5 and your product would be 3!

7 0

4 years ago

Will Mark brainlyest, offering max points: Which of the following quadratic functions does this graph represent?

prohojiy [21]

Answer:

The quadratic formuls that this graph represents is: f (x) = -x 2 -2x +3

Have a nice day!

7 0

2 years ago

Find the perimeter of a ruler that measures 6 inches by 5/6

alukav5142 [94]

Answer:

41/3

Step-by-step explanation:

6 + 6 + 5/6 + 5/6

3 0

3 years ago

What is the volume of a sphere with a radius of 7mm

elena-14-01-66 [18.8K]

1) The answer, in terms of "π", is:
_________________________________
"  ( $\frac{1372 mm^3}{3}$ ) * π mm³ " .
___________________________________________________
2) The answer, using "3.14" for "π", is:
___________________________________________________
" 1436.0266666666666667 mm³ " ; round to: " 1436.027 mm³ " ;

or; write as: " 1436 $\frac{2}{75}$ mm³ " .
___________________________________________________
Explanation:
____________________________________________
The formula for the volume, "V" of a sphere is:

V = $\frac{4}{3}$ * π* r³ ;

in which "r" = radius = "7 mm" {given}.

We can solve using "3.14" for "π" ; or we can solve in terms of "π" ;
_________________________________________
1) In terms of "π" :
_________________________________________
V = $\frac{4}{3}$ * π * r³ ;

= $\frac{4}{3}$ * π * (7 mm)³ ;

= $\frac{4}{3}$ * π * (7 * 7 * 7 * mm³) ;

= $\frac{4}{3}$ * π * (49 * 7 * mm³) ;

= $\frac{4}{3}$ * π * (343 mm³) ;

= $\frac{4* 343 mm^3}{3}$ ) * π mm³

= ( $\frac{1372 mm^3}{3}$ ) * π mm³ ;

________________________________________________________
2) Using "3.14" for "π" :
________________________________________________________
    V = $\frac{4}{3}$ * π * r³ ;

= $\frac{4}{3}$ * (3.14)* (7 mm)³ ;

    = $\frac{4}{3}$ * (3.14) * (7 * 7 * 7 * mm³) ;

= $\frac{4}{3}$ * (3.14) * (49 * 7 * mm³) ;

= $\frac{4}{3}$ * (3.14) * (49 * 7 * mm³) ;

= $\frac{4}{3}$ * (3.14) * (343 mm³) ;

= { $\frac{4}{3}$ } * (3.14 * 343 mm³) ;

= { $\frac{4}{3}$ } * (1077.02 mm³) ;

= (4 * 1077.02 mm³) / 3 ;

= (4308.08 mm³) / 3 ;
__________________________________________________________
= 1436.0266666666666667 mm³ ; round to: " 1436.027 mm³ " ;

or; write as: " 1436 $\frac{2}{75}$ mm³ " .
__________________________________________________________

6 0

3 years ago

6 is 55% of what number? Round answer to nearest tenth (1 number after decimal)

Arada [10]

Answer:

10.9

Step-by-step explanation:

Formula = Number x 100

Percent = 6 x 100

55 = 10.91

Following shows the steps on how to derive this formula

Step 1: If 55% of a number is 6, then what is 100% of that number? Setup the equation.

55% = Y

100%

Step 2: Solve for Y

Using cross multiplication of two fractions, we get

55Y = 6 x 100

55Y = 600

Y = 600

100 = 10.91

8 0

3 years ago