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3 years ago

Match the equation with its graph 5x-4y=20

Mathematics

1 answer:

sladkih [1.3K]3 years ago

8 0

I've attached the correct image to this answer, just in case they're scrambled.

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1.) There are f fish in an aquarium. One fourth of the fish are angelfish. How many are angelfish?

natali 33 [55]

Answer

1. f - 3/4

2. 62 + h

Step-by-step explanation:

1. 1/4 of the fish are angelfish, all fish are one whole, one whole - 3/4's = 1/4

2. we dont have the value of H so we in turn have to figure out the equation and 62 + h is the only answer we can come to

8 0

3 years ago

Find the average rate of change for f(x) = x - 8x + 15 from x = -3 to x = 2.

MrRissso [65]

Answer:

Look at the picture

Step-by-step explanation:

The answer is B. -9

4 0

3 years ago

The graph of an exponential function passes through (2,−32) and (3,−64). Find the exponential function that describes the graph.

Greeley [361]

Answer: $y=(-8)2^x$

Step-by-step explanation:

The exponential function will have this form:

$y=ab^x$

We know that the function passes through the points $(2,-32)$ and $(3,-64)$ . Then, we can substitute the coordinates of the point $(2,-32)$ into $y=ab^x$ and solve for "a":

$-32=ab^2\\\\a=\frac{-32}{b^2}$

Then, we know that:

$y=(\frac{-32}{b^2})b^x$

Now, we neeed to substitute the coordinates of the second point $(3,-64)$ into $y=(\frac{-32}{b^2})b^x$ and solve for "b":

$-64=(\frac{-32}{b^2})b^3\\\\-64=-32b\\\\\frac{-64}{-32}=b\\\\b=2$

Substituting the value of "b" into $a=\frac{-32}{b^2}$ we can find "a":

$a\frac{-32}{2^2}\\\\a=-8$

Therefore, we get that the exponential function that describes the graph, is:

$y=(-8)2^x$

7 0

3 years ago

13. A discount retail store gives a 8% discount

ohaa [14]

Answer:

the final cost is $31.74

6 0

3 years ago

Please help quickly!!!

stiks02 [169]

Answer:

Option D is correct.

$(2x^5y^2)^3= 8x^{15}y^6$

Step-by-step explanation:

Power of product property:

$(x^m)^n = x^{mn}$

$(ax)^m = a^m \cdot x^m$

Let the equation: $(2x^5y^2)^3$

Using power of products Property on given equation:

$(2x^5y^2)^3$ = $2^3 \cdot (x^5)^3 \cdot (y^2)^3 = 8 \cdot x^{15} \cdot y^6 = 8x^{15}y^6$

Therefore, the only option D of an equation which shows the correct use of power of Products property is, $(2x^5y^2)^3= 8x^{15}y^6$

4 0

3 years ago

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