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Rom4ik [11]
3 years ago
11

I need help on 9 thxs

Mathematics
1 answer:
insens350 [35]3 years ago
6 0
30% off means u r actually paying 70%

70% of 25 =
0.70(25) =
17.50 <== discounted price
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What is the domain of f(x) = 3x – 22
kupik [55]

Answer: 7.3333

Step-by-step explanation:

6 0
3 years ago
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PLEASE HELP! Image below
maria [59]

Answer:

1.6

Step-by-step explanation:

So, first, write down the number of jokers in each deck of cards.

That would be: 0, 1, 2, 2, 3

Then, add up all those numbers.

0+1+2+2+3=8

Now, divide that sum by the number of decks or cards shown in the data set, which would be 5.

8/5=1.6

So, the mean of the data in the dot plot shown is 1.6.

:L)

4 0
3 years ago
A is true but f(x) is wrong need help
MrRissso [65]

Answer:

f(x)=-18x^2

Step-by-step explanation:

Given:

1+Integral(f(t)/t^6, t=a..x)=6x^-3

Let's get rid of integral by differentiating both sides.

Using fundamental of calculus and power rule(integration):

0+f(x)/x^6=-18x^-4

Additive Identity property applied:

f(x)/x^6=-18x^-4

Multiply both sides by x^6:

f(x)=-18x^-4×x^6

Power rule (exponents) applied"

f(x)=-18x^2

Check:

1+Integral(-18t^2/t^6, t=a..x)=6x^-3

1+Integral(-18t^-4, t=a..x)=6x^-3

1+(-18t^-3/-3, t=a..x)=6x^-3

1+(6t^-3, t=a..x)=6x^-3

That looks great since those powers are the same on both side after integration.

Plug in limits:

1+(6x^-3-6a^-3)=6x^-3

We need 1-6a^-3=0 so that the equation holds true for all x.

Subtract 1 on both sides:

-6a^-3=-1

Divide both sides by-6:

a^-3=1/6

Raise both sides to -1/3 power:

a=(1/6)^(-1/3)

Negative exponent just refers to reciprocal of our base:

a=6^(1/3)

3 0
3 years ago
Bozena is an ecologist who studies the change in the tiger population of Siberia over time the relationship between the elapsed
Solnce55 [7]

I think the answer is the number of tigers decays by a factor of 4/5 every 0.5 years

Could you put me as brainliest?

8 0
3 years ago
Factorise fully 8x^2+6x
alexgriva [62]

Answer:

2x(4x + 3)

Step-by-step explanation:

8x^2 + 6

So the common terms that can be taken out are x and 2

Hence, it can be written as 2x (4x + 3)

6 0
3 years ago
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