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dolphi86 [110]
2 years ago
8

Solve x + 2y = 13 4x + 8y = −9 (1 point)

Mathematics
2 answers:
lianna [129]2 years ago
7 0

your answer to the 2nd one is y=-9-4x over 8


Fynjy0 [20]2 years ago
5 0
I think that’s it. If not sorry.

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Does each equation represent exponential decay or exponential growth?
lisov135 [29]

Answer:

1. H = 5.9(0.82)^{t}. Exponential decay function.

2. y = 0.8(3.6)^{t}. Exponential growth function.

3. f(t) = 0.72(15)^{t}. Exponential growth function.

4. A = \frac{4}{9} (8)^{t}. Exponential growth function.

5. A = (\frac{4}{3})^{t}. Exponential growth function.

6.  H = \frac{7}{2} (\frac{5}{6} )^{t}. Exponential decay function.

7. g(x) = 0.3(x). Not an exponential function.

Step-by-step explanation:

1. H = 5.9(0.82)^{t}. This is an exponential decay function.

As the value of t increases H-value decreases.

2. y = 0.8(3.6)^{t}. This is an exponential function of growth.

As the value of t increases y-value also increases.

3. f(t) = 0.72(15)^{t}. This is an another example of exponential growth function.

As the value of t increases f(t)-value also increases.

4. A = \frac{4}{9} (8)^{t}. This is again an example of exponential growth function.

As the value of t increases A-value also increases.

5. A = (\frac{4}{3})^{t}. This is again an example of exponential growth function.

As the value of t increases A-value also increases.

6. H = \frac{7}{2} (\frac{5}{6} )^{t}. This is another an example of exponential decay function.

As the value of t increases, H-value decreases.

7. g(x) = 0.3(x). This is a non-exponential function. (Answer)

4 0
3 years ago
Geometry
Elan Coil [88]

By definition, the number \pi is the ratio between the circumference and the diameter:

\pi=\dfrac{C}{d}

This implies that

C=\pi d

And so your circumference is 8\pi

3 0
2 years ago
What is the value of minus 6 x cubed minus y squared minus 3 x y if if x = -2 and y = 4
Oksi-84 [34.3K]

Well, "minus 6 x cubed minus y squared minus 3 x y" translates to:

-6x^{2} -y^{2} -3xy

Then, if we insert the values for x and y, we get:

-6(-2)^{2} -(4)^{2} -3(-2)(4)

When we distribute and multiply:

144-16-24

And once we combine like terms:

104<em> is the answer</em>


8 0
3 years ago
Read 2 more answers
Toben bought ​ 512 ​ pounds of chicken, which cost $3.50 per pound.
Ludmilka [50]
Hello!

1 pound = $3.50

To find the cost of 512 pounds, we must multiply the cost per pound by the total amount of pounds:

3.50 * 512 = 1,792

ANSWER: The total cost of the chicken was $1,792.
4 0
2 years ago
Read 2 more answers
PLEASE HURRY 10 POINTS FOR ALL OF YOU
katrin2010 [14]

Answer:

288cm

Step-by-step explanation: She is a beach..Thats why shes rude

3 0
3 years ago
Read 2 more answers
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