which of the following parent functions has a graph that could be described using these key attributes? NEED HELP ASAP​

Answer:

Step-by-step explanation:

To prove sin(a+b)*sin(a-b)=cos^2b-cos^2a

we simplify the left side  sin(a+b)*sin(a-b) first

sin(a+b) = sin a cos b + cos a sin b

sin(a-b) = sin a cos b - cos a sin b

sin(a+b)*sin(a-b) = (sin a cos b + cos a sin b) x (sin a cos b -cos a sin b)

sin a cos b((sin a cos b + cos a sin b) - cos a sin b (sin a cos b + cos a sin b)

open the bracket

sin a cos b(sin a cos b) + sin a cos b(cos a sin b) -cos a sin b (sin a cos b)+ cos a sin b ( cos a sin b)

sin²a cos²b + sin a cos b cos a sin b - cos a sin b sin a cos b + cos²a sin²b

sin²a cos²b  + 0 + cos²a sin²b

sin²a cos²b + cos²a sin²b

sin²a  = 1-cos² a

sin²b  = 1-cos² b

(1-cos² a)cos² b - cos² a(1-cos² b)

= cos² b - cos² a cos² b - cos² a +cos² a cos² b

choose like terms

cos² b - cos² a - cos² a cos² b + cos² a cos² b = cos² b - cos² a  + 0

cos² b - cos² a

left hand side equals right hand side

Answer:

18 Dollars

Step-by-step explanation:

180 X .10 = 18 dollars of discount

180-18= 162 is the total of what she paid for the dress

I hope this helped you

Answer:

2. A

4. D

Step-by-step explanation:

it might be right dont know good luck-_-||

Answer:

-12x+28

Tell me if u need an explanation!

Hope this Helps!!!

Since both terms are perfect squares, factor using the difference of squares formula,

a² − b² = (a + b) (a − b) where a = 5(x + 5/4) and b = 4 (x (7/4) ).

− (12x + 25/4) (2x + −25/4)

Answer:

h=11

Step-by-step explanation:

divide:

132/12h

11h

Answer:

11

Step-by-step explanation:

You divide each side by 12 in order to isolate the h

So: 12h = 132

     ____  _____

      12        12

       h   =     11

Answer:

21

Step-by-step explanation:

i hope this helps :)

Answer:

.where is the explanation?

Answer:

n = 1.42857

Step-by-step explanation:

if a2 is -140 then somewhere between is -100.  3/7 is equal to 0.42857142857 in which it is 3/7 from -70 to -140 in a number range of 1 to 2.  1.42857142857 is your best bet as your answer.

Answer:

a

Step-by-step explanation:

the answer is a

√192=13.85.....

8√3= 13.85

answer is a

Answer:

3a+6+5a

3×3+6+5×3

9+6+15

15+15

30

Hey there!

3a + 6 + 5a

= 3(3) + 6 + 5(3)

= 9 + 6 + 15

= 15 + 15

= 30

Therefore, your answer is: 30

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

[tex]\huge\star\underbrace{\mathtt\red{«♠A} \mathtt\green{n♣ }\mathtt\blue{ §} \mathtt\purple{w}\mathtt\orange{£} \mathtt\pink{r♪»}}\star\:[/tex]

8 - (5+43) /8

=> 8 - 48/8

=> 8 - 6

=> 2

Step-by-step explanation:

Hope it helps you tho...!!!!!!!!!!!!!!!!!

Answer: we have  2,200milliters, 1000milliters, 1800milliters.

Step-by-step explanation:

Step 1

1 Liter= 1000 millilitres

5 liters = 5000 millilitres

Step 2

Dividing 5000 ml in the ratio 11:5:9

First, we find the  Total ratio = 11+5+9 = 25

Such that

First  part = 11/25  x 5000 = 2,200milliters.

Second Part = 5/25 x 5000=1000milliters.

Third part =9/25 x 5000=1,800milliters.

the fact that there is no chart makes it hard

Step-by-step explanation:

Answer:

62

Step-by-step explanation:

Notice that angles <a and that labeled 62 degrees are corresponding angles between parallel lines, and therefore, must be congruent.

Therefore:

<a = 62 degrees.

Answer:

1 1/8"

Step-by-step explanation:

First, make a common denominator.

1 1/4 = 5/4 * 2/2 = 10/8 = 1 2/8

2 3/8 and 1 2/8

Then, subtract.

2 - 1 = 1

3/8 - 2/8 = 1/8

1 1/8"

Answer:

[tex]9\frac{3}{4} , 9.5 , 9 \frac{3}{8} , 9.175[/tex]

Step-by-step explanation:

Answer: the mode is 67.2

Step-by-step explanation:

Given that;

Data               Frequency

30 - 34                 1

35 - 39                0

40 - 44                3

45 - 49                7

50 - 54                5

55 - 59               10

60 - 64               10

65 - 69              21

70 - 74               12

Mode = ?

we know that mode is the number that has the highest number of appearance of frequency, so in this case, the data group that has the highest frequency (21) is 65 - 69  

Lower class boundary of the modal group; L = 65

Frequency of the group before the modal group; Fm-1 = 10

Frequency of the modal group; Fm = 21

Frequency of the group after the modal group; Fm+1 = 12

Group width; G = 4

Now using the formula

Mode = L + [ (Fm - Fm-1) / ( (Fm - Fm-1) + (Fm - Fm+1) ) ] × W

so we substitute

Mode = 65 + [ (21 - 10) / ( (21 - 10) + (21 - 12) ) ] × 4

= 65 + [ 11 / 20] × 4

= 65 + 2.2

= 67.2    

Therefore the mode is 67.2

Answer:

Step-by-step explanation:

the choice and use of words and phrases in speech or writing.

Answer:

[tex]\frac{20}{63}[/tex]

Step-by-step explanation:

The lengh times width results in 63, 20 of the 63 squares are shaded.

Answer:

3.66

Step-by-step explanation:

You have four numbers which sum equals 14.64. Now you divide 14.64 by 4 to get 3.66, or the mean/average

Answer:

14,214

Step-by-step explanation:

no

hope it helps!

Answer:sure y not?

Step-by-step explanation:

Answer:non

Step-by-step explanation:

Answer:

It's nonproportional

Answer:

1.5

Step-by-step explanation:

2h-(6h-5)=-1

2h-6h+5=-1

-4h+5=-1

-4h=-1-5

-4h=-6

h=-6/-4

h=6/4

h=3/2 or 1.5

Answer:

exact form: 3/2

decimal form: h= 1.5

mixed number form: h= 1  1/2

Answer:

1. 456.75 4567.5

2. 0.98 0.098

3. 2.4

4. 12,300

5. 809.200

6. 0.13

7. 42,608

8. 18

9. 280

10. 23

11. 950

12. 0.26

13. 9,500

14. 6.4

15. 280 3.06 0.2

16. 0.086 8,620 3.624

Answer:

The standard error of the mean = 2

Step-by-step explanation:

Given that:

The standard deviation σ = 14

The sample size n = 49

The sample mean [tex]\overline x[/tex] = 56

The formula for calculating the standard error can be expressed as:

[tex]S.E = \dfrac{\sigma}{\sqrt{n}}[/tex]

[tex]S.E = \dfrac{14}{\sqrt{49}}[/tex]

[tex]S.E = \dfrac{14}{7}[/tex]

S.E = 2

Therefore, the standard error of the mean = 2

Answer:

The correct answer is Census

Step-by-step explanation:

According to the given scenario, the record for each and every individual with respect to the population who has the interest is known as the census. The census means the information received for each and every population member

Therefore as per the given situation, the term that should be used is census

Answer:

I believe answer is 0.041

Answer:

Step-by-step explanation:

Answer:

no se ve bien no puedes subirla en foto?

Step-by-step explanation: