3 years ago

Help I’m really bad at this

Mathematics

1 answer:

kogti [31]3 years ago

4 0

Answer:

Step-by-step explanation:

The formula for surface area is SA = 2lw + 2wh + 2lh

W = width

L= length

H = height

A = 2(wl + hl + hw)

2·(6·3+2·3+2·6)

Simplify that down to get the answer 72

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Question 2

fomenos

Answer:

D. (-2,-5), (0, -7), (1, -4)

Step-by-step explanation:

From Function Theory we must remember that range of a function is the set of images related to elements of the domain. In this case, we must find the image of each of the three elements that forms the domain of $f(x, y) = (y+2, -x-4)$ , which are: $A(x,y) = (1, -4)$ , $B(x,y) = (3,-2)$ and $C(x,y) = (0,-1)$ .

Then we proceed to find all elements of range:

$A(x,y) = (1, -4)$

$f(1,-4) = (-4+2,-1-4)$

$f(1,-4) = (-2,-5)$

$B(x,y) = (3,-2)$

$f(3,-2) = (-2+2,-3-4)$

$f(3,-2) = (0,-7)$

$C(x,y) = (0,-1)$

$f(0,-1) = (-1+2,0-4)$

$f(0,-1) = (1,-4)$

Which corresponds to option D.

3 0

3 years ago

write the vertex form quadratic equation which has a vertex at (2,-1) and psses theough the point (4,3)

andrey2020 [161]

Answer:

Step-by-step explanation:

8 0

3 years ago

zzz [600]

Answer:

option 4

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Multiply. Write in simplest form. Identify the two whole numbers between which the product lies.

True [87]

The answer is:
8 x 1/5 = 8/5
Five divides eight one time with a remainder of three.
The mixed number is 1 and 3/8, it is between 1 and 2.

~Hope this Helped~

5 0

3 years ago

The cost of maintaining car A is $300 per year plus $.014 per mile driven. The cost of maintaining car B is $200 per year plus $

mylen [45]

When cost is equal

$\begin{gathered} 300+0.14x=200+0.025x \\ 300-200=0.25x-0.014x \\ 100=0.011x \\ x=\frac{100}{0.011} \\ x=9090.90909091 \\ x=9090.91 \end{gathered}$

7 0

9 months ago