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3 years ago

Solve for y. y = 2x +5 ; when x= 2.

Mathematics

2 answers:

mixer [17]3 years ago

4 0

Y=2(2)+5
y=4+5
y=9

The answer for Y would be 9 by substituting! :)

Mila [183]3 years ago

3 0

Answer: To find the x-intercept, substitute in

for

and solve for

−

Solve the equation.

To find the y-intercept, substitute in

for

and solve for

(

)

−

Simplify

(

)

−

These are the

and

intercepts of the equation

−

x-intercept:

(

)

y-intercept:

(

−

)

Plz brainliest thx (:

Step-by-step explanation:

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Someone please help me on this I have 5 minutes!

Alla [95]

Answer: A. sqrt of 500.

Step-by-step explanation: If you simplify the sqrt of 500, you will get 10 sqrt of 5

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5 + n2 > 8 A. n > 6 B. n>3 C. n>1.5 D. n < 26

san4es73 [151]

N•2>8
then dive both sides 2n>8
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3 years ago

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Y = -x^2 + 4x quadratic formula

marin [14]

Answer:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Down

Vertex:

( 2 , 4 )

Focus:

( 2 , 15 /4 )

Axis of Symmetry:

x = 2

Directrix:

y = 17 /4

x y

0 0

1 3

2 4

3 3

4 0

To find the x-intercept, substitute in

0 for y and solve for x . To find the y-intercept, substitute in 0 for x and solve for y .

x-intercept(s): ( 0 , 0 ) , ( − 4 , 0 )

y-intercept(s): ( 0 , 0 )

Step-by-step explanation:

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3 years ago

What are the solutions to the equation (2x – 5)(3x – 1) = 0?

user100 [1]

Answer: $x=\frac{5}{2}, x=\frac{1}{3}$

Explanation:

The equation is:

$(2x-5)(3x-1)=0$

The term on the left consists of a product of two different factors: therefore, this product can be zero if either the first term (2x-5) or the second term (3x-1) is equal to zero.

This means that we can solve separately for the two terms:

$2x-5=0\\3x-1=0$

Solving the first equation:

$2x-5=0\\2x=5\\x=\frac{5}{2}$

Solving the second equation:

$3x-1=0\\3x=1\\x=\frac{1}{3}$

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3 years ago

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Determine the Cartesian coordinates of the points with polar coordinates (\sqrt{2}, \pi/4 ), (0, \pi), (-1,400\pi), and ( 2\sqrt

yarga [219]

Answer:

Step-by-step explanation:

We have the conversion from polar coordinates to cartesian as

x =rcost and y = rsint where (r,t) are the polar coordinates

Also all trignometric functions are periodic with period = 2pi

Using this we find out

$(\sqrt{2}, \pi/4 ) = (\sqrt{2}cos \pi/4, \sqrt{2}cos \pi/4,)=(1,1)\\ (0, \pi), (-1,400\pi),=(0 cos 1400 \pi, 0 sin 1400\pi)\\= (0, 0)\\\\ ( 2\sqrt{3},- 2\pi / 3) = (2\sqrt{3}, cos2\pi / 3, 2\sqrt{3},sin2\pi / 3))\\=(-\sqrt{3}, 3)$

Thus we converted polar to rectangular coordinates.

Reverse would be

from (x,y) to (r,t) as

$r=\sqrt{x^2+y^2} \\tant = y/x$

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3 years ago