Need Help ASAP 50 POINTS
The language arts teacher wants to know whether the students in the entire school prefer a debate or an speech. The teacher draws a random sample from the following groups:

All teachers in the school
All boys in each grade
All students in the speech club
All students in each grade
Which group best represents the population she should take a random sample from to get the best results for her survey?
All teachers in the school
All boys in each grade
All students in the speech club
All students in each grade

Answer:

a - 129

b - 63

Step-by-step explanation:

for a - supplementary angles add up to equal 180

so to find the measure of its supplement we subtract the given angle from 180 180-51=129

so the measure of a supplement angle is 129

for b - complementary angle add up to equal 90

so to finds the measure of its complement we subtract the given angle from 90

90-27=63

so the measure of its complement is 63

Answer:

(a) An angle measures 51°. the measure of its supplement=180-51=129°

b) An angle measures 27°. the measure of its complement=90-27=63°

Answer:

7:28PM

Step-by-step explanation:

80 minutes = 1 hour and 20 mins

5:15PM + 1 hour and 20 minutes = 6:35PM

6:35 + 53 = 6:88

6:88PM = 7:28PM

Answer: b

Step-by-step explanation:

Answer:

slope-5/3-1 2/3

y-intercept=-2

Step-by-step explanation:

hope that helps if correct please mark as brainliest thank you

19NBoli

Answer:

y  <  − 6 ?

Step-by-step explanation:

Its a straight line on graph so it's linear

Answer:

w

Step-by-step explanation:

Answer:

Here is your answer

Step-by-step explanation:

3.(x+3)(x+5)

4.(x-8)(x+8)

5.(x+6)^2

9514 1404 393

Answer:

  (x, y) → (-∞, -∞), (+∞, +∞)

Step-by-step explanation:

The expression is of odd degree with a positive leading coefficient. It will have a generally upward slope (/). That is, the sign of f(x) will match the sign of x for large-magnitude values of x:

  x → -∞, f(x) → -∞

  x → ∞, f(x) → ∞

Answer:

C:18x1=1x18

when multiplying 2 numbers, the result is the same in either order.

Answer:

rate: 4                             rate: -2

starting: 3                       starting: 30

y= -4x + 3                        y= -2x + 30

rate: 2                            rate: 6

starting: -4                     starting: 6

y= 2x -4                          y= 6x + 6

Step-by-step explanation:

[tex]m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

^equation to find slope

To also find b, the starting value,  you need to take any point given and substitute it back into the equation with the slope.

However, these problems give you the y-int already [it is the point like (0,y)]

7-3/1-0 = 4/1

rate: 4

starting: 3

y= 4x + 3

28-30/1-0= -2/1

rate: -2

starting: 30

y= -2x + 30

-2 - (-4)/1-0 = 2/1

rate: 2

starting: -4

y= 2x -4

6-0/1-0 = 6/1

rate: 6

starting: 6

y= 6x + 6

Answer:

x = 11.2

Step-by-step explanation:

Since, ΔPQR ~ ΔVST,

By the property of similar triangles, corresponding sides of these triangle will be proportional.

[tex]\frac{PQ}{VS}=\frac{QR}{ST}[/tex] ---------(1)

Since, scale factor = [tex]\frac{\text{Dimension of the image figure}}{\text{Dimension of the original}}[/tex]

[tex]\frac{2}{5}[/tex] = [tex]\frac{PQ}{VS}[/tex]

Therefore, from equation (1)

[tex]\frac{2}{5}=\frac{x}{28}[/tex]

x = [tex]\frac{28\times 2}{5}[/tex]

x = 11.2

Answer:

D

Step-by-step explanation:

They are both even numbers the 4 is seperated into 2,2 and if 4 is an even and event A is even it would be dependent

Answer: bro you have to submit a picture or some more information baceuse nobody will be able to answer your question with only one number (45)

Step-by-step explanation:

Answer:

[tex]NO= 31.2[/tex]

Step-by-step explanation:

See attachment for triangle

From the attachment, we have:

[tex]KL = 51.6[/tex]

[tex]LM= 38[/tex]

[tex]OP = 23[/tex]

Required

Find NO

This will be calculated using the following equivalent ratios:

[tex]NO : OP = KL : LM[/tex]

This gives:

[tex]NO : 23= 51.6: 38[/tex]

Express as fraction

[tex]\frac{NO }{ 23}= \frac{51.6}{ 38}[/tex]

Make NO the subject

[tex]NO= \frac{51.6}{ 38} * 23[/tex]

[tex]NO= \frac{51.6* 23}{ 38}[/tex]

[tex]NO= \frac{1186.8}{ 38}[/tex]

[tex]NO= 31.2[/tex] --- approximated

Answer:

x≈ 16.9

Step-by-step explanation:

Answer:

I believe it's d but I could be wrong but I'd try it

Answer:  x=3

Step-by-step explanation; Add 5 to both sides of the equation

6x-5+5=2x+7+5

simplify: add the numbers

6x-5+5=2x+75 = 6x=2x + 7+5

6x =2x + 7+5

6x=2x +12.

subtract 2x from both ides of the equation: 6x=2x + 12

6x - 2x =2x + 12-2x6

combine like terms  u should get 4x= 12

divided both sides of the equation by the same term 4x=12  4x/4 =12/4

Cancel terms that are in both the numerator and denominator u should get  x=12/4

divided the numbers and ur answer is X=3

Answer:

Spencer is correct

Step-by-step explanation:

because you always go for the lowest number

Answer:

Spencer

Step-by-step explanation:

Spencer got it corret because the answer is x=2/5

but jeremiah subtracted 6x so he got x=1/3

Hope this helps :)

Can I have brainliest Plsssss

Answer:

52.72m

Step-by-step explanation:

half-circles)

[tex]c = \pi {r}^{2} \\ c = 3.14 \times 16 = 50.24 \div 2 = 25.12[/tex]

rectangle)

[tex]4 \times 6 = 24[/tex]

triangle)

[tex] {3}^{2} + {2}^{2} = {c}^{2} \\ 9 + 4 = 13 \\ \sqrt{13} = 3.6[/tex]

Add everything-

[tex]3.6 + 25.12 + 24 = 52.72[/tex]

Answer:

Third side = 3√3

Step-by-step explanation:

Apply pythagorean theorem, which is a² + b² = c²

Where,

a = ?

b = 3

c = 6

Substitute

a² + 3² = 6²

a² = 6² - 3²

a² = 27

a = √27

a = √(9 × 3)

a = 3√3

Answer:

Divide by 4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Fractions can get messy.

I like to clear fractions, so I would multiply both sides by 4

n - 16 = -48    multiple by 4

n = -48 + 16   add 16 to both sides

n = -32           collecting terms

Answer: 96 cents or 0.96

Step-by-step explanation:

When in a money problem like this and it is telling you to find the tax, fee, or and bonus you move the decimal in front of the number or decimal and round to the nearest penny and in this situation .195 rounds to .96

The balance in her account at the end of 2.5 year should be considered as the $3,568.

Since deposited amount si $3,400

The interest rate is 1.95%

And, the time period is 2.5 years

So, here the balance should be like

[tex]= 3400 \times (1 + 1.95\%)^{2.5[/tex]

= $3,568

hence, The balance in her account at the end of 2.5 year should be considered as the $3,568.

Learn more about interest rate here: https://brainly.com/question/24002393

Answer:

50π cm²

Step-by-step explanation:

Lateral surface area of a cylinder is the area surrounding curved surface of the cylinder

Thus:

Lateral surface area of the cylinder = 2πrh

Where,

r = 5 cm

h = 5 cm

Plug in the values

Lateral Surface Area = 2*π*5*5

= 50π cm²

Answer: D: 7

Step-by-step explanation:

14/2 = 7

49/7 = 7

Answer:

Step-by-step explanation:

[tex]5\sqrt[3]{x+8}=35\\ \\ \sqrt[3]{x+8}=7\\ \\ x+8=7^3\\ \\ x+8=343[/tex]

Answer:

This is  a reasonable decision because the sample size has no effect on the 90% confidence interval

Step-by-step explanation:

90% confidence interval

larger sample size = 20

condition : sample mean ( x-bar ) is the same for both samples

This is  a reasonable decision because the sample size has no effect on the 90% confidence interval

from condition 1 :

Amount of drink dispensed is normally distributed with known standard deviation , given a random sample of n drinks and the sample mean at a confidence interval of 90%

for condition 2 :

sample size = 20

mean = 2.25 ( assumed value )

std = 0.15 ( assumed value )

Z = 1.645 ( Z-value )

determine the 90% confidence interval

= mean ± z [tex]\frac{std}{\sqrt{n} }[/tex]

= 2.25 ± 1.645 [tex]\frac{0.15}{\sqrt{20} }[/tex]

= 2.25 ± 0.0335 = ( 2.2835 , 2.2165 )

Answer: 48

Step-by-step explanation:

Answer:

Halo!!! i wrote my answer below your epic btw

Step-by-step explanation:

you first have to break up the surface of the shape into smaller shapes so that they are easier to work with. you then calculate all of the shapes and add them together. this can be used in the real world to find the area of houses when you need to find how much space an area of the house has.

PS:If u didnt learn to find surface area this way insert anything you want into the beggining sorry i dont know what youve been learning

Answer:76

Step-by-step explanation:

Hope it help correct me if i am wrong