All categories

2 years ago

Please help!

Mathematics

1 answer:

lisabon 2012 [21]2 years ago

8 0

The leftmost line segment has a domain of -4 ≤ x < -1, or [-4, 1).

The central line segment has a domain of -1 ≤ x ≤ 2, or [-1, 2].

The rightmost line segment has a domain of 2 < x ≤ 5, or (2, 5].

Overall, this function has a domain of

[-4, 1) U [-1, 2] U (2, 5]

(where U means "union" in the set-theoretic notion)

But this also simplifies to the interval [-4, 5].

These correspond to the <u>first</u> and <u>last</u> choices.

You might be interested in

6 pints = to how many quarts=

Alchen [17]

Answer:

6 pints = 3 quarts = 5.91 cups = 0.74 gallons

(cups and gallons are rounded)

Step-by-step explanation:

5 0

3 years ago

10. Melissa and Kaylee are playing a game.

choli [55]

Answer:

Kaylee wins.

Step-by-step explanation:

Melissa-> 1 Point

((5*2)-12)+3

(10-12)+3

-2+3

Kaylee-> 6 Points

((-3*2)-1)+6+7

(-6-1)+13

-7+13

4 0

2 years ago

Find [4(cos15° + isin15°)]^3 and express it in a + bi form.

arsen [322]

Answer:

see explanation

Step-by-step explanation:

Using De Moivre's theorem

Given

[ 4(cos15° + isin15° ) ]³, then

= 4³ [ cos(3 × 15°) + isin(3 × 15°) ]

= 64 (cos45° + isin45° )

= 64 ( $\frac{\sqrt{2} }{2}$ + $\frac{\sqrt{2} }{2}$ i )

= 64 ( $\frac{\sqrt{2} }{2}$ (1 + i) )

= 32 $\sqrt{2}$ (1 + i)

= 32 $\sqrt{2}$ + 32 $\sqrt{2}$ i

3 0

3 years ago

What is the slope of the line shown below?

Sophie [7]

Hi there!

$\large\boxed{slope = \frac{1}{5}}$

Use slope formula to solve for the slope of the line:

$slope = \frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

Plug in points into the equation. We can use the points (0, -10) and (25, -5):

$slope = \frac{-5-(-10) }{25 -0 } = \frac{5}{25} = \frac{1}{5}$

3 0

3 years ago

50 POINTS PLS HELP!!!!

VARVARA [1.3K]

The plot of the PDF shows the distribution is symmetric. This means that the mean is the same as the median, and that the 50% of the distribution lies to other side of this mean, i.e.

$P(X\ge a)=P(X\le a)=0.50$

For this distribution, $a=3$ .

3 0

3 years ago

Read 2 more answers