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3 years ago

14

A suitcase is pulled feet along a flat sidewalk with a constant upward force of 80 lb at an angle of 23 with the horizontal. Cal

culate the work done.

1 answer:

Harlamova29_29 [7]3 years ago

5 0

Answer:

newtons 2nd law of motion

Step-by-step explanation:

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PLEASE FIND THE VERTEX AND IF IT OPENS UP OR DOWN ON A GRAPH!

Margaret [11]

Answer:

There's no negative sign in front of the absolute value so it opens upward. As for the vertex, the x value will be whatever makes what is in the absolute value symbols 0 which is 2.5 in our case and the y-coordinate is 3 so the vertex is (2.5, 3).

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3 years ago

(WORTH 10 POINTS PLEASE ANSWER ASAP PLEASEEEEEEE)

Brilliant_brown [7]

Answer:

2(10+6)=32

Step-by-step explanation:

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4 years ago

Read 2 more answers

Find the total area of the given figure

Dahasolnce [82]

Answer:

$A=996\ in^2$

Step-by-step explanation:

we know that

The total area of the figure is equal to the area of the square plus the area of the triangle

step 1

Find the area of triangle

The area of triangle is equal to

$A=\frac{1}{2}(b)(h)$

where

b is the base of triangle (is the same that the length side of the square)

h is the height of triangle

we have

$h=35\ in$

Applying the Pythagorean Theorem

Find the length side b

$37^2=35^2+(b/2)^2$

$(b/2)^2=37^2-35^2$

$(b/2)^2=144$

$(b/2)=12\\b=24\ in$

Area of triangle

$A=\frac{1}{2}(24)(35)=420\ in^2$

step 2

Find the area of the square

The area of the square is

$A=b^2$

we have

$b=24\ in$

substitute

$A=(24)^2=576\ in^2$

step 3

Find the total area of the figure

Adds the areas

$A=420+576=996\ in^2$

6 0

3 years ago

What number makes the equation true?<br> 4= 36 :<br> PLZZZZZ HELP

babymother [125]

Answer:

9x4=36

Step-by-step explanation:

8 0

4 years ago

An apple orchard has an average yield of 36 bushels of apples per tree if tree density is 26 trees per acre. For each unit incre

Rama09 [41]

Answer:

4 trees per acre

Step-by-step explanation:

Given,

The original number of apples per tree = 36 bushels,

Original density of a tree = 26 per acre,

Since, for each decrease in tree density, the yield increases by 2 bushels per tree.

Let x be the number of units decreased in tree density,

So, new density = 26 - x,

New number of apples = 36 + 2x

Thus, the total yield would be,

P(x) = Number of apples per tree × density of a tree

⇒ P(x) = (26 - x)(36 + 2x)

⇒ P(x) = 936 + 52x - 36x - 2x²,

⇒ P(x) = 936 + 16x - 2x²

Differentiating with respect to x,

P'(x) = 16 - 4x

Again differentiating with respect to x,

P''(x) = -4

For maxima or minima,

P'(x) = 0

⇒ 16 - 4x = 0

⇒ -4x = -16

⇒ x = 4

For x = 4, P''(x) = negative,

Hence, 4 trees per acre should be planted to maximize the yield.

3 0

3 years ago