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2 years ago

What is that answer to that math problem ?

Mathematics

1 answer:

vazorg [7]2 years ago

6 0

Answer:

1. x = 20

2. x = 5.25

3. x = 35

Step-by-step explanation:

Hope this helps!

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Please help with 17!

solmaris [256]

Since f(x) is up and down, simply decrease the overall equation by 2 to get 2sqrt(x+3)+3 instead of +5. To move it 5 to the right, we have to do something kind of weird, which is subtract 5 from (x+3) instead of add 5 to get
2sqrt(x-2)+3.

8 0

2 years ago

What is the area? Please help!!!

anyanavicka [17]

Answer: 96 ft²

Step-by-step explanation:

This figure can be divided into two rectangles:

The first rectangle has dimensions 6 ft by 14 ft.
The second rectangle had dimensions 4 ft by 3 ft.

Find the area of both rectangles:

The first rectangle: 6 × 14 = 84 ft²
The second rectangle: 4 × 3 = 12 ft²

Add them together to find the total area of the figure:

84 + 12 = 96 ft²

7 0

2 years ago

In 10 minutes, a heart can beat 700 times. At this rate in how many minutes will a heart beat in 140 times. At what rate can a h

ArbitrLikvidat [17]

I think 2.3 minutes

5 0

2 years ago

Do this only on number line

Tatiana [17]

-2/8=-1/4
3/6=1/2

Refer to the attachment

Mid point:-

-2/5+1/2/2
-4+5/10/2
1/10/2
1/20

4 0

1 year ago

Read 2 more answers

A rectangular piece of land borders a wall. The land is to be enclosed and to be into divided 3 equal plots with 200 feet of fen

baherus [9]

Answer:

Area = 2500 square feet is the largest area enclosed

Step-by-step explanation:

A rectangular piece of land borders a wall. The land is to be enclosed and to be into divided 3 equal plots with 200 feet of fencing

Let x be the length of each box and y be the width of the box

Perimeter of the box= 3(length ) + 4(width)

$200=3x+4y$

solve for y

$200=3x+4y$

$200-3x=4y$

divide both sides by 4

$y=50-\frac{3x}{4}$

Area of the rectangle = length times width

$Area = 3x \cdot y$

$Area = 3x \cdot (50-\frac{3x}{4})$

$A=150x-\frac{9x^2}{4}$

Now take derivative

$A'=150-\frac{9x}{2}$

Set it =0 and solve for x

$0=150-\frac{9x}{2}$

$150=\frac{9x}{2}$

multiply both sides by 2/9

$x=\frac{100}{3}$

$A''=-\frac{9}{2}$

For any value of x, second derivative is negative

So maximum at x= 100/3

$A=150x-\frac{9x^2}{4}$ , replace the value of x

$A=150(\frac{100}{3})-\frac{9(\frac{100}{3})^2}{4})$

Area = 2500 square feet is the largest area enclosed

3 0

2 years ago