All categories

3 years ago

I need help and the answer

Mathematics

1 answer:

tankabanditka [31]3 years ago

5 0

Sogsifhxfulxc j Jvari

You might be interested in

Given the following exponential function, identify whether the change represents

maxonik [38]

Answer:

54.7%

Step-by-step explanation:

Given the function :

y=2700(0.453)

y represents an exponential Decay function because :

For a growth function ; the function :

y = A(1 + r) where, A is the initial amount and r = growth rate

With this function ; the value in bracket will always be greater Than 1

Hence, when the value after the initial value is less than 1 ; then we have an exponential Decay ;

Where

y = A(1 - r)

Hence, rate, r equals :

1 - r = 0.453

1 - 0.453 = r

r = 0.547

= 0.547 * 100%

= 54.7%

7 0

3 years ago

Simplify.<br> In e =<br> In e 2x=<br> In 1 =

Shalnov [3]

Answer:

ln e = 1

ln e 2x = 2x

ln 1 = 0

Step-by-step explanation:

ln e

ln(2.718282) = 1

In e 2x

ln(2.718282)(2)x = 2x

ln 1 = 0

5 0

3 years ago

How much longer was the world record than Sheila first jump

Nadusha1986 [10]

The answer would be 58

8 0

3 years ago

TIMOROW DUE HELP NOW

Svetlanka [38]

The required percentage error when estimating the height of the building is 3.84%.

<h3>How to calculate the percent error?</h3>

Suppose the actual value and the estimated values after the measurement are obtained. Then we have:

Error = Actual value - Estimated value

Given that,

An estimate of the height, H meters, of a tall building can be found using the formula :

H = 3f + 15

where the building is f floors high.

f = 85

The real height of the building is 260 m.

H = 3f + 15

Put f = 85 in the above formula

H = 3(85) + 15

H = 270 m

Error,

$E = \dfrac{270 - 260 }{260} \times 100\\\\E = 3.84 %$

So, the required percentage error is 3.84%.

Learn more about percentage error;

brainly.com/question/20534444

#SPJ1

3 0

2 years ago

2 Points

liraira [26]

Two or zero expresses the possible number of positive real solutions for the given polynomial equation.

Answer: Option D

<u>Step-by-step explanation:</u>

Given equation:

$x^{3}-4 x^{2}-7 x+28=0$

First, we put hit and trial method to find out the one solution. So, if we put x=4 then the above expression will become zero. We can also write the above expression as

$(x-4) \times\left(x^{2}-7\right)=0$

We know the formula, $a^{2}-b^{2}=(a+b)(a-b)$ , make use of this, we get

$(x-4) \times(x-\sqrt{7}) \times(x+\sqrt{7})=0$

So, $x=4, \sqrt{7},-\sqrt{7}$

Hence, from the above expression, we have three values of x as x= 4, 2.64 and -2.64

8 0

3 years ago