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4 years ago

Please help fast!!

Mathematics

2 answers:

Kruka [31]4 years ago

7 0

Answer:

answer should be twu

Step-by-step explanation:

frosja888 [35]4 years ago

4 0

Answer:

f(x)= 1/2x -1

Step-by-step explanation:

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HELPPPPPPPP will give the brainliest pls help

baherus [9]

Answer:

Step-by-step explanation:

i guessed

8 0

3 years ago

In quadrilateral ABDC, AB ∥ CD. Which additional piece of information is needed to determine that ABDC is a parallelogram? AB ≅

siniylev [52]

For any quadrilateral to be a parallelogram

i) either both the pairs of opposite sides must be equal

ii) Both the pairs of opposite sides must be parallel

iii) Opposite pairs of angles must be equal

iv) Diagonals must bisect each other.

v) A pair of opposite sides must be parallel and equal

Here we are already given that AB || CD

So either we should be given that AD || BC

or we must be given that AB = CD

Here it is given AB = CD as an option.

So Option A) or the first option is the right answer that AB ≅CD is needed to prove ABCD is a parallelogram.

7 0

4 years ago

Read 2 more answers

8.7- (1+3)³ +6 · 2 =

Mumz [18]

Answer: -43.3

Step-by-step explanation:

We will use the order of operations, sometimes called PEMDAS. See attached for more information on this subject.

Given:

8.7 - (1 + 3)³ + 6 · 2

Simplify parentheses:

8.7 - (4)³ + 6 · 2

Raise to the power of three:

8.7 - 64 + 6 · 2

Multiply:

8.7 - 64 + 12

Subtract:

-55.3 + 12

Add:

-43.3

7 0

2 years ago

Can someone answer this please

Alexxandr [17]

Answer:

Range: (-∞, 0]

General Formulas and Concepts:

Algebra I

Range is the set of y-values that are outputted by function f(x)

Step-by-step explanation:

When we graph the equation, we should see that our y-values span from -∞ to 0. Since 0 is a closed dot, it is inclusive in the range:

(-∞, 0] or y ≤ 0

4 0

3 years ago

You observe a portfolio for five years and determine that its average annual return is 13% and the standard deviation of its ret

horrorfan [7]

Answer:

There is a 95% probability that the portfolio would not loose more than 30% of its value.

Step-by-step explanation:

The confidence interval for proportions (p) is:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}$

The information provided is:

$\hat p = 0.13\\\sqrt{\frac{\hat p(1-\hat p}{n}} =0.21$

For 95% confidence level the critical value of z is:

$z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96$

The 95% confidence interval for average annual return is:

$CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\=0.13\pm 1.96\times0.21\\=0.13\pm 0.4116\\=(-0.2816, 0.5416)\\\approx(-28\%, 54\%)$

The lower limit of the 95% confidence interval is -28%.

This implies that the portfolio would not loose more than 28% of its value.

Thus, there is a 95% probability that the portfolio would not loose more than 30% of its value.

6 0

3 years ago