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3 years ago

Someone pls help me I’ll give out brainliest please dont answer if you don’t know

Mathematics

2 answers:

Sindrei [870]3 years ago

5 0

Answer:

x = -16

Step-by-step explanation:

Vanyuwa [196]3 years ago

3 0

I’m going to help you but just to be sure you’re finding x and the equation too? or just the equation?

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Please answer this question correctly! 20 points and brainliest to the correct answer!!

Vitek1552 [10]

D because the rest can be divided into cubes or rectangles.

6 0

3 years ago

The value V of a certain automobile that is t years old can be modeled by V(t) = 14,651(0.81). According to the model, when will

lakkis [162]

Answer:

a) The car will be worth $8000 after 2.9 years.

b) The car will be worth $6000 after 4.2 years.

c) The car will be worth $1000 after 12.7 years.

Step-by-step explanation:

The value of the car after t years is given by:

$V(t) = 14651(0.81)^{t}$

According to the model, when will the car be worth V(t)?

We have to find t for the given value of V(t). So

$V(t) = 14651(0.81)^{t}$

$(0.81)^t = \frac{V(t)}{14651}$

$\log{(0.81)^{t}} = \log{(\frac{V(t)}{14651})}$

$t\log{(0.81)} = \log{(\frac{V(t)}{14651})}$

$t = \frac{\log{(\frac{V(t)}{14651})}}{\log{0.81}}$

(a) $8000

V(t) = 8000

$t = \frac{\log{(\frac{8000}{14651})}}{\log{0.81}} = 2.9$

The car will be worth $8000 after 2.9 years.

(b) $6000

V(t) = 6000

$t = \frac{\log{(\frac{6000}{14651})}}{\log{0.81}} = 4.2$

The car will be worth $6000 after 4.2 years.

(c) $1000

V(t) = 1000

$t = \frac{\log{(\frac{1000}{14651})}}{\log{0.81}} = 12.7$

The car will be worth $1000 after 12.7 years.

5 0

3 years ago

YOU GET 10 POINTS HELP HELP HELP HELP ME ME ME ME WITH THE CORRECT ANWSERS

inessss [21]

Answer:

The third choice.

Step-by-step explanation:

This is a linear function.

The equation is y = (x - 5)(5x + 4) - 5x^2.

y = 5x^2 - 25x + 4x - 20 - 5x^2

y = 5x^2 - 5x^2 - 21x - 20

y = -21x - 20

That means this is a linear function, with a linear term of -21x and constant term of -20.

Hope this helps!

7 0

3 years ago

Read 2 more answers

What must be true to find the sum of a infinite sequence?

Georgia [21]

Answer:

The series must be decreasing, and the limit as the n-th term goes to infinity should be 0.

3 0

4 years ago

40% of 50 is what number

nikitadnepr [17]

Step-by-step explanation:

Step 1:

Let the number be 50 and to find 40% of 50 is given interms of expression as follows

To express the percentage the following strategy is used

Eg: 40% = $40/100$

∴ To express 40% of 50 is

$(40/100)*50$

Step 2:

On simplification the above expression we could get

$0.4*50$

= 20

4 0

3 years ago

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