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3 years ago

PLS HELLPP AHJSJBAJEWVJ :(

Mathematics

2 answers:

aksik [14]3 years ago

3 0

Answer:

I don't see the picture

Step-by-step explanation:

kkurt [141]3 years ago

3 0

The answer is uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh A

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Is 9+16 square root the same as 9 square root + 16 square root

Veseljchak [2.6K]

Answer:

False

Step-by-step explanation:

9+16 is square root of 25 which is 5

Square root of 9 is 3 and 16 is 4 so 3+4=7

3 0

3 years ago

Read 2 more answers

3) Postcards: Marcie wants to make a box to hold her postcard collection from a piece of

klasskru [66]

The volume of the box is the amount of space in it.

The dimension of the postcard is:

$\mathbf{Length = 10}$

$\mathbf{Width = 18}$

Let x represents the length of the cut.

So, the dimension of the box is:

$\mathbf{Length = 10 -2x}$

$\mathbf{Width = 18 -2x}$

$\mathbf{Height = x}$

(a) The function that represents the volume of the box

This is calculated as:

$\mathbf{V(x) = Length \times Width \times Height}$

So, we have:

$\mathbf{V(x) = (10 - 2x) \times (18 - 2x) \times x}$

Expand

$\mathbf{V(x) = 180x - 56x^2 + 4x^3}$

Hence, the volume function is: $\mathbf{V(x) = 180x - 56x^2 + 4x^3}$

(b) The dimension that maximizes the volume

We have:

$\mathbf{V(x) = 180x - 56x^2 + 4x^3}$

Differentiate

$\mathbf{V'(x) = 180- 112x + 12x^2}$

Set to 0

$\mathbf{180- 112x + 12x^2 = 0}$

Using a calculator, we have:

$\mathbf{x = 7.3,2.1}$

The value x = 7.3 is greater than the dimension of the box.

So, we have:

$\mathbf{x = 2.1}$

Recall that:

$\mathbf{Length = 10 -2x}$

$\mathbf{Width = 18 -2x}$

$\mathbf{Height = x}$

So, we have:

$\mathbf{Length = 10 -2 \times 2.1 = 5.8}$

$\mathbf{Width = 18 -2 \times 2.1 = 13.8}$

$\mathbf{Height = 2.1}$

Hence, the dimension that maximizes the volume is 5.8 by 13.8 by 2.1

(c) The maximum volume

This is calculated as the product of the dimension of the box

So, we have:

$\mathbf{Volume = 5.8 \times 13.8 \times 2.1}$

$\mathbf{Volume = 168.1}$

Hence, the maximum volume of the box is 168.1 cubic inches

Read more about volumes at:

brainly.com/question/17056191

5 0

3 years ago

A square has an area of 64 cm Find the perimeter of the square.

julia-pushkina [17]

Answer:32cm

Step-by-step explanation:

Length=L

Area=64

Area=L x L

64=L^2

L^2=64

Take them square root of both sides

√(L^2)=√(64)

L=8

Perimeter of square=4 x L

Perimeter of square=4 x 8

Perimeter of square=32

Perimeter =32cm

8 0

3 years ago

15 × 3 3/5 = _ +_= plz answer quickly please

Oksana_A [137]

Answer:

Step-by-step explanation:

15/1 × 3 3/5 = 54

~~~~~~~~~~

3 0

4 years ago

Math. need help please slope-intercept form

vagabundo [1.1K]

Y = 3x
How to solve:
y2 - y1/x2-x1
27-15/9-5
= 12/4 = 3
Looks like you got it already :)

7 0

4 years ago