All categories

3 years ago

Help me with this!! I dont understand this question

Mathematics

1 answer:

Sonja [21]3 years ago

4 0

Answer:

the answer would be c

Step-by-step explanation: Because the values inside of the parenthesis don't have the same variable, they cannot be combined. Using the 9 on the outside of the parenthesis you would multiply 9 by 3r, which gives you 27r, and 9 by -4 to create -36. The new equation would be 27r - 36, which is equivalent to the equation shown next to it.

You might be interested in

According to the Center for Disease Control and Prevention (CDC), up to 20% of Americans contract the influenza virus each year,

12345 [234]

Answer:

(1) a. 0.0009

(2) d. 0.640

(3)

a. P(A and B) = 0.06.
b. P(A or B) = 0.70.

(4)Not disjoint

(5) a. nearly 0.

(6)b. 0.919

Step-by-Step Explanation:

(1)Probability of a baby being born with a birth defect =3%=0.03

The probability that both babies have birth defects=0.03 X 0.03= 0.0009.

(2)The probability of contracting the influenza virus each year = 20%=0.2

Therefore, the probability of not contracting the influenza virus =1-0.2=0.8

The probability that neither baby catches the flu in a given year:

=0.8 X 0.8

=0.64

(3)

P(A)=0.1

P(B)=0.6

P(A or B)=P(A)+P(B)=0.1 + 0.6 =0.7

P(A and B)=P(A)XP(B)=0.1 X 0.6 =0.06

(4)

P(A)=0.2

P(B)=0.9

Event A and B cannot be disjoint.

(5)

The probability of an American woman aged 20 to 24 having Chlamydia infection $=\dfrac{2791.5}{100000}$

The probability that three randomly selected women in this age group have the infection

$=\dfrac{2791.5}{100000} \times \dfrac{2791.5}{100000} \times \dfrac{2791.5}{100000} \\\\=0.00002175\\\approx 0$

(6)The probability of an American woman aged 20 to 24 not having Chlamydia infection $=1-\dfrac{2791.5}{100000}$

The probability that three randomly selected women in this age group do not have the infection

$=\left(1-\dfrac{2791.5}{100000}\right)^3\\\\=0.9186\\\approx 0.919$

7 0

4 years ago

Help please, i need this done asap thanks in advance

alina1380 [7]

Answer:

<AOC

<AOB

<BOC

Step-by-step explanation:

The central angles are formed at point O, which is the center of the circle.

All the central angles are marked in the attachment.

The central angles are

: $m\angle AOC$ . This is a right angle and it is 180 degrees.

: $m\angle AOB$

: $m\angle BOC$

7 0

3 years ago

Find the rule and the graph of the function whose graph can be obtained by performing the translation 3 units left and 2 units d

ahrayia [7]

Answer: Option b.

Step-by-step explanation:

1. You have the following parent function given in the problem above:

f(x)=x³ (This is the simplest form. We need to translate it 3 units left and 2 units down)

2. If you take the parent function and make y=f(x+3), then you have:

$y=f(x+3)=(x+3)^{3}$ (The function is shifted 3 units left on the x-axis).

3. Then you if you make y=f(x+3)-2, as following, you obtain:

$y=f(x+3)-2=(x+3)^{3}-2$ (The function is shifted 2 units down on the y-axis).

4. Therefore, that is how you obtain the final function.

The answer is the graph shown in the option b.

5 0

3 years ago

Branlist asap

bekas [8.4K]

Answer: c and e

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

PLEASE HELP WILL GIVE 100 POINTS AND MARK BRAINLIEST!!! :(((((

Anna71 [15]

Answer:

since i dont know what are in the drop down menus i will do my best

if you tell me what are in the drop down menus tho i'll fix my answer to go with it

Step-by-step explanation:

first one i assume is the 'constant'

second one is she forgot to put x on the other side and get rid of y's cooefficient

third one is 48 or (0,48)

hope this helps <3

8 0

3 years ago