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3 years ago

What is y=4x please show work

Mathematics

2 answers:

kirill115 [55]3 years ago

7 0

K. not 100% sure

y=4x
y= 4 x substitute -2-2 for x x
y y
y=4(-2) y=4-2

777dan777 [17]3 years ago

5 0

Hi! So if this is on a graph the line would be straight up and down. However if you are given an ex tell you you would insert the x value into the equation by multiplying it by 4 to get the Y value.

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Express the polynomial z2 − z4 + 2z2 in standard form and then classify it.

Inessa05 [86]

The answer in standard form is
-z^4 + 3z^2
This is a quartic polynomial

The term with the highest exponent is listed first, then you list the next largest and so on. The like terms are z^2 and 2z^2 which combine to 3z^2

5 0

3 years ago

Find the missing value. Hint use a number line to find the missing value -3=7-

const2013 [10]

-3 = 7-10
Subtract 10 from 7 and you will get -3

4 0

3 years ago

Find the x-intercepts and y-intercept of the following function (x−5)(x−3)(4x+8)

Sergio [31]

X-intercepts:
(x-5)(x-3)(4x+8)=0

x-5=0 x-3=0 4x+8=0
x=5 x=3 x=-8/4
x=-2

Y-intercept:
sub x=0
(0-5)(0-3)(4(0)+8)=y

(-5)(-3)(8)=y

y = 120

5 0

3 years ago

20p!!!ill mark you as brain please help!!! hurry

Kay [80]

Answer:

$\boxed{\text{1172 in}^{2}}$

Step-by-step explanation:

SA = SA(prism) + SA(cylinder) – 2SA(cylinder base)

1. Surface area of rectangular prism

The formula for the surface area of a rectangular prism is

S = 2(lw + lh + wh)

Data:

l = 16 in

w = 11 in

h = 11 in

Calculations:

2(Top + Bottom) = 2lw = 2 × 16 × 11 = 352 in²

2(Front + Back) = 2lh = 2 × 16 × 11 = 352 in²

2(Left + Right) = 2wh = 2 × 11 × 11 = <u>242 in² </u>

Total area = 946 in²

2. Surface area of cylinder

A = A(top) + A (base) + A(side) = 2A(base) + A(side)

Data:

d = 8 in

h = 9 in

Calculations:

r = ½d = ½ × 8 = 4 in

$\begin{array}{rcl}SA & = & 2\pi r^{2}+ 2\pi rh \\& = & 2 \times 3. 14\times 4^{2} +2\times 3. 14 \times 4\times 9\\& = & 6.28\times 16 + 226.08\\& = & 100.48 + 226.08\\& = & 326.56 \text{ in}^{2}\\\end{array}$

3. Excluded area

Excluded area = 2A(base) = 100.48 in²

4. Total area

$A = 946 + 326.56 - 100.48 \approx \boxed{\textbf{1172 in}^{2}}$

3 0

4 years ago

How is the graph of y= square root x+3 translated from the graph of y = √x

Law Incorporation [45]

9514 1404 393

Answer:

3 units left

Step-by-step explanation:

Replacing x in a function with (x-h) translates the graph to the right by h units. Here, you have h = -3, so the graph is translated left 3 units.

4 0

3 years ago