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VladimirAG [237]
3 years ago
8

Please help me with this:

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0

Answer:

Max is correct.

Step-by-step explanation:

You have to add

Travka [436]3 years ago
4 0
Ari is right.

Step by step:

4/10 -> 40/100
40/100 + 35/100 = 75/100
You have to make sure the denominators are the same before you add them.
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What is the slope of a line that is perpendicular to the line shown.
sertanlavr [38]

Answer:

3/4

Step-by-step explanation:

First of all, we need to calculate the slope of the line shown. This can be computed as:

m=\frac{\Delta y}{\Delta x}

where

\Delta y = y_2-y_1 is the increment along the y-direction

\Delta x = x_2 - x_1 is the increment along the x-direction

We can choose the following two points to calculate the slope of the line shown:

(-3,2) and (0,-2)

And so, the slope of the line shown is

m=\frac{-2-(2)}{0-(-3)}=-\frac{4}{3}

Two lines are said to be perpendicular if the slope of the first line is the negative reciprocal of the slope of the second line:

m_2 = -\frac{1}{m_1}

Using m_1 = -\frac{4}{3}, we find that a line perpendicular to the line shown should have a slope of

m_2 = -\frac{1}{-4/3}=3/4

5 0
3 years ago
From a square piece of cardboard paper of area size 9 m2 , squares of the same size are cut off from each corner of the paper. T
levacccp [35]

Answer:

Max vol = 2 cubic metres

Step-by-step explanation:

Given that from a square piece of cardboard paper of area size 9 m2 , squares of the same size are cut off from each corner of the paper.

Side of the square = 3m

If squares are to be cut from the corners of the cardboard we have the dimensions of the box as

3-2x, 3-2x and x.

Hence x can never be greater than or equal to 1.5

V(x) = Volume = V(x) = x(3-2x)^2\\= 9x+4x^3-12x^2

We use derivative test to find the maxima

V'(x) = 9+12x^2-24x\\V"(x) = 24x-24\\

Equate I derivative to 0

9+12x^2-24x=0\\x=1/2,3/2

If x= 3/2 box will have 0 volume

So this is ignored

V"(1/2) <0

So maximum when x =1/2

Maximum volume

=9(1/2)+4(1/2)^3-12(1/2)^2\\=2 cubic metres

6 0
3 years ago
Find the distance between each pair of points (6,-2) (8,-3)
alina1380 [7]

Answer:-1/2

Step-by-step explanation: You just find the slope which is m=y2-y1

-------

x2-x1

5 0
3 years ago
Read 2 more answers
1.<br> What is the area of this tile?<br> ina<br> 6 in.<br> 2 in.
satela [25.4K]

Answer:u will kno3

Step-by-step explanation:6 in the side the top 2 the top

5 0
3 years ago
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A 12 ounce bottle of shampoo lasted Nina 8 weeks how long would an 18 once bottle of shampoo last her
natali 33 [55]

Answer:

12 weeks

Step-by-step explanation:

set up a proportion of ounces/weeks = ounces/weeks

12/8 = 18/w

12w = 144

w = 12

4 0
3 years ago
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