3 years ago

Question 6

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

4 0

Answer:

first one

$y=\frac{4}{5}x-1$

Step-by-step explanation:

It's the same as the given function, just with a 1 unit shift downward.

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Louis has three more quarters than dimes for a total of $1.80. What equation can you use to determine how many dimes,x, in his p

elixir [45]

0.10x + 0.25(x + 3) = 1.80

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3 years ago

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lapo4ka [179]

The answer is y= 3/4x - 4.

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4 years ago

If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 40 minutes, then Torricelli's Law gives the v

pochemuha

Answer:

V'(t) = $-250(1 - \frac{1}{40}t)$

If we know the time, we can plug in the value for "t" in the above derivative and find how much water drained for the given point of t.

Step-by-step explanation:

Given:

V = $5000(1 - \frac{1}{40}t )^2$ , where 0≤t≤40.

Here we have to find the derivative with respect to "t"

We have to use the chain rule to find the derivative.

V'(t) = $2(5000)(1 - \frac{1}{40} t)d/dt (1 - \frac{1}{40}t )$

V'(t) = $2(5000)(1 - \frac{1}{40} t)(-\frac{1}{40} )$

When we simplify the above, we get

V'(t) = $-250(1 - \frac{1}{40}t)$

If we know the time, we can plug in the value for "t" and find how much water drained for the given point of t.

4 0

4 years ago

NEED HELP ASAP PLEASE WITH EXPLANATION PLEASE

KonstantinChe [14]

Answer:

(1) 20%

Step-by-step explanation:

→ Find the difference in price

200 - 160 = 40

→ Divide difference by original price

40 ÷ 200 = 0.2

→ Multiply the answer by 100

0.2 × 100 = 20%

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3 years ago

Calcula la longitud de la variable "x"

Olenka [21]

Answer:

x=20

Step-by-step explanation:

30°-60°-90°Δ

a=10

b=20

c=10 $\sqrt{3}$

x=b

x=20

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3 years ago