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max2010maxim [7]

4 years ago

9

The diagram shows an isosceles right

2 answers:

babymother [125]4 years ago

5 0

Answer:AB= 1.0

AC=1.0

BC=1.4

Step-by-step explanation:

Vlad [161]4 years ago

5 0

Answer:

Here we have to use the theorem about the isosceles right triangles, which states:

<em>In an isosceles right triangle the sides are in the ratio $1:1:\sqrt{2}$ .</em>

This means that AB is 1 unit, AC i 1 unit and BC is 1.4 units, which is the result of the square root.

Therefore,

AB = 1

AC = 1

BC = 1.4

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Left on together, the cold and hot water faucets of a certain bathtub take 5 minutes to fill the tub. If it takes the hot water

mario62 [17]

Answer:

$\frac{15}{2}=7.5$ minutes.

Step-by-step explanation:

Let t represent time taken by cold water faucet in minutes to fill the tub.

Part of tub filled by cold water faucet in one minute would be $\frac{1}{t}$ .

We have been given that it takes the hot water faucet 15 minutes to fill the tub by itself, so art of tub filled by hot water faucet in one minute would be $\frac{1}{15}$ .

We are also told that left on together, the cold and hot water faucets of a certain bathtub take 5 minutes to fill the tub, so part of tub filled by both faucets in one minute would be $\frac{1}{5}$ .

We can represent part of tank filled by both faucets in one minute as:

$\frac{1}{15}+\frac{1}{t}=\frac{1}{5}$

$\frac{1}{15}\cdot 15t+\frac{1}{t}\cdot 15t=\frac{1}{5}\cdot 15t$

$t+15=3t$

$t-t+15=3t-t$

$15=2t$

$2t=15$

$\frac{2t}{2}=\frac{15}{2}$

$t=7.5$

Therefore, it will take 7.5 minutes for the cold water faucet to fill the tub alone.

8 0

3 years ago

Can someone answer this for me pls?

Aleks04 [339]

No. 1

x=2

y=0

Solve it by substitution method

Where,

y=2-x

and replace y at equation 1

7 0

3 years ago

Drag the integers to substitute for the variables in the

aniked [119]

Answer/Step-by-step explanation:

Given:

5(r - s)

r = 9

s = 1

Required:

Evaluate and simplify

Solution:

5(r - s)

Plug in the values of r and s

5(9 - 1)

= 5(8)

= 40

7 0

3 years ago

I need help<br> ill give brainliest

N76 [4]

Answer: The first equation can be used to find the answer.

The solution to y^2 is 80

4 0

3 years ago

Read 2 more answers

Suppose that the total profit in hundreds of dollars from selling x items is given by P(x) =4x2 - 5x + 10. Find the marginal pro

qaws [65]

The marginal profit is the profit that an individual or firm earns from producing and selling an additional item

<u><em>The marginal profit </em></u><u>at x = 5 is </u><u>$3,500</u>

<u></u>

The reason the above value is correct is as follows:

The given total profit function is P(x) = 4·x² - 5·x + 10

Where;

P(x) = The total profit in hundreds of dollars

x = The number items sold

The marginal profit is given by the derivative of the profit function

$Marginal \ profit = \dfrac{dP}{dx} = \dfrac{dR}{dx} - \dfrac{dC}{dx}$

Where;

P = Profit, R = Revenue, and C = Cost

Therefore, we have;

$Marginal \ profit = \dfrac{d}{dx} \left (4 \cdot x^2 - 5 \cdot x + 10\right) = 8 \cdot x - 5$

Marginal profit in hundreds of dollars = 8·x - 5

Therefore, the marginal profit at x = 5, is given as follows;

Marginal profit = 8 × 5 - 5 = 35

The marginal profit at <em>x = 5</em> is <u>$3,500</u>

<u />

Learn more about marginal profit here:

brainly.com/question/15522421

4 0

3 years ago