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3 years ago

Pls help thank you :)

Mathematics

1 answer:

grigory [225]3 years ago

3 0

Answer:

points= (0,4) (1,-4) (-1,4) and make the line

Step-by-step explanation:

i just know

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One tank is filling at a rate of 5/8 gallon per 7/10 hour. A second tank is filling at a rate of 5/9 gallon per 2/3 hour. Which

forsale [732]

Answer is in the attachment below.

4 0

3 years ago

Read 2 more answers

If each soda sells for $2.50, what is the expected daily total dollar amount taken in by the vendor from the sale of sodas?

Mariana [72]

Answer:

$34.38

Step-by-step explanation:

Y: A random variable that indicates the amount of money that the seller will receive.

p=2,50$

if x=0 → y=0.2,50=0$

if x=5 → y=5.2,50 = 12,5 $

if x=10 → y=10.2,50= 25$

if x=15 → y=15.2,50= 37,5$

if x=20 → y=20.2,50= 50 $

if x=25 → y=25.2,50= 62,5$

Y= { 0$ ; 12,5$ ; 25$ ; 37,5$ ; 50$ ; 62,5$ }

E(Y)= ∑Y.P(Y)

= 0.P(0)+12,5.P(12,5)+ 25.P(25)+ 37,5.P(37,5)+ 50.P(50)+ 62,5.P(62,5)

= 0.0,01+ 12,5.0,15+ 25.0,25+ 37,5.0,3+ 50.0,25+ 62,5.0,04

= 0 + 1,875 + 6,25 + 11,25 + 12,5 + 2,5

= 34,38$ expected value of the amount of money the seller receives.

5 0

3 years ago

Which of the following best describes the intersection of two planes?

spayn [35]

<span>A. line

Planes intersect in a line when they meet each other.</span>

4 0

3 years ago

The graph represents the piecewise function

mr Goodwill [35]

The piece-wise function is defined as follows:

$f(x) = x^2, 0 \leq x < 3$ .

$f(x) = -\frac{5}{3}x + 14, 3 < x \leq 6$ .

$f(x) = \frac{3}{2}x - 5, 6 \leq x \leq 10$ .

<h3>What is a piece-wise function?</h3>

A piece-wise function is a function that has multiple definitions, depending on the input.

In this graph, for x at least 0 and less than 3, the parabolic curve passes through (0,0), (1,1), (2,4) and has an open interval at (3,9), hence the definition is:

$f(x) = x^2, 0 \leq x < 3$

For x greater than 3 and at most 6, it is a line going through (3,9) and (6,4), hence:

$m = \frac{9 - 4}{3 - 6} = -\frac{5}{3}$

$f(x) = -\frac{5}{3}x + b$

Goes through (3,9), hence:

$9 = -\frac{5}{3}(3) + b$

b = 14.

$f(x) = -\frac{5}{3}x + 14, 3 < x \leq 6$

For x between 6 and 10, it is a line going through (6,4) and (10,10), hence:

$m = \frac{10 - 4}{10 - 6} = \frac{6}{4} = \frac{3}{2}$

Then:

$f(x) = \frac{3}{2}x + b$

When x = 10, f(x) = 10, hence:

$10 = \frac{3}{2}(10) + b$

10 = 15 + b

b = -5.

Hence:

$f(x) = \frac{3}{2}x - 5, 6 \leq x \leq 10$

More can be learned about piece-wise functions at brainly.com/question/24734454

#SPJ1

6 0

2 years ago

Find the third side in simplest radical form:

leonid [27]

Answer:

The third side is 8

Step-by-step explanation:

Since this is a right triangle we can use the Pythagorean theorem

a^2 + b^2 =c^2 where a and b are the legs and c is the hypotenuse

a^2 + 15^2 = 17^2

a^2 +225 = 289

Subtract 225 from each side

a^2 +225-225=289-225

a^2 = 64

Take the square root of each side

sqrt(a^2) = sqrt(64)

a= 8

8 0

3 years ago