Y= 3x +5 when x= 10 what is the value of y
when x= -10 what is the value of y
which equation below gives the same value if y fit both x= 10 and x=-10?
a. y= 10x b. y=2x c. y=x+10 d. y=x2

a) y = 35

b) y = -25

c) Option D

y = 35

y = -25

y = x^2

Step-by-step explanation:

y = 3x + 5

a) when x = 10, what is the value of y?

y = 3x +5

y = 3(10) + 5

y = 30 + 5

y = 35

b) when x= -10 what is the value of y?

y = 3x + 5

y = 3 (-10) + 5

y = -30 + 5

y = -25

c) y = x^2

because 10^2 = 100 and -10^2 = 100

Hope this helps!

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet