Layla calculates the mean of the ages of 10 students on her bus, and she discovers the average(mean) age is 12.8. What will happen to the mean if she includes her bus driver's age of 56 in her data set? *
A.The mean will stay the same.
B.The mean will decrease.
C.The mean will increase.
D.There isn't enough information.

Answers

Answer 1

Answer:

The mean will increase

Step-by-step explanation:


Related Questions

hi please help i’ll give brainliest

Answers

Answer:

The answer is B

Step-by-step explanation:

IT SHOWS THAT A SOLAR ECLIPSE OCCURS WHEN THE MOON CASTS A SHADOW OVER EARTH.


What is the value of x? Show me how you got that answer

Answers

Answer:

30

Step-by-step explanation:

a right triangle is 90° so

76+(x-6)=90°

-76 -76

(x-6)=24

+6 +6

x=30

Find the circumference of a circle with radius, r = 16.5m.
Give your answer in terms of pi.

Answers

Answer:

33π is the answer in terms of pi.

Step-by-step explanation:

Circumference of circle formula is C=πd.

Plug in the given values. We put 33 into d, because d represents diameter, and diameter is twice the radius(16.5), so we multiply 16.5 by 2. So far we have C=(π)(33).

C=(π)(33)=33π

(x+ 7)(x -8) = 0 then
___ OR ___
OR Solving: x = x =

NOT MULTIPLE CHOICE

Answers

Answer:

if this is factoring i wanna say

x= -7

x= 8

but i could be wrong this is a trick 1

Step-by-step explanation:

The table shows the race time, in minutes, for five runners.
What is the range in the race times?

A) 14
B) 16
C) 18
D) 21

Answers

The range is 7
21-14=7

Answer:

18

Step-by-step explanation:

OOPS I MEANT 18 I WASNT PAYING ATTENTION LOL

A faraway planet is populated by creatures called Jolos. All Jolos are either green or purple and either one-headed or two-headed. Balan, who lives on this planet, does a survey and finds that her colony of 852 contains 170 green, one-headed Jolos; 284 purple, two-headed Jolos; and 430 one-headed Jolos. One-headed Two-headed Total Green 170 Purple 284 Total 430 852 How many green Jolos are there in Balan's colony? O A. 138 B. 308 O C. 422 D. 260​

Answers

Answer:

B. 308

Step-by-step explanation:

Table is given belowFind the missing values.The one we are looking for is total of green = y.

                 |              1 -H        |       2-H          |       Total

Green       |           170            |          x           |       y      

Purple       |            z              |       284          |       w        

Total         |            430          |          v            |      852      

z = 430 - 170 = 260w = 260 + 284 = 544y = 852 - 544 = 308v = 852 - 430 = 422

Correct choice is B

does a cylinder have lateral surfaces

Answers

Answer:

Yes it had two circular bases and a curved lateral surface.

Step-by-step explanation:

Answer:

yes it doesn't

Step-by-step explanation:

hope dis helps

$800 deposit over 10 years
with an interest rate of 2%.

Answers

Answer:

960

Step-by-step explanation:

Those are the options

Answers

Answer:

Please have a look.........

What is slope of (2,-1) and (-5,-3)?

Answers

slope is m=2/7.
hope this helps !

Answer:

I love algebra anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

The first term of a sequence is 4 and the common
ratio is -2. What is the formula for the sequence
based on term number
Qy --2-(4)-1
ay -4.(-2)2-1
an = (4.-2)^2=1
an - 4.(-2)

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the concept of Geometric Progression.

So, we know that,

GP = a.r^(n-1)

here, a = 4 and r = -2

so we get as,

an = 4.(-2)^n-1

Option B.) is correct

The Garys have a triangular pennant of area 420 in(squared)flying from the flagpole in their yard. The height of the triangle is 10 in less than 5 times the
base of the triangle. What are the dimensions of the pennant?

Answers

Answer:

The answer is given below:

Step-by-step explanation:

The computation of the dimension of the pennant is shown below:

As we know that

Area of the triangle = 1 ÷ 2 × base × height

where

x represents the base of the traingle

h represent the height that should be (5x - 10)

Now according to the above formula

420 =  1 ÷ 2 × x × (5x - 10)

840 = x(5x - 10)

840 = 5x^2 - 10x

5x^2 - 10x - 840 = 0

5(x^2 - 2x - 168) = 0

x^2 - 2x - 168 = 0

x^ - 14x + 12x - 168

x (x - 14) + 12(x - 14)

(x + 12) (x - 14)

So, here x = 14

Now height would be

= 5(14) - 10

= 60 inches

Someone help plz, plz make sure it’s right if it is will mark brainiest :)

Answers

Answer:

Step-by-step explanation:

I really don’t know but I think you have to find the hypothenuse first then you can do the rest

Answer:

Step-by-step explanation:

"SAS" is when we know two sides and the angle between them. use The Law of Cosines to calculate the unknown side, then use The Law of Sines to find the smaller of the other two angles, and then use the three angles add to 180° to find the last angle.

pls help me pls (this needs to be 20 characters so ignore this part)

Answers

Step-by-step explanation:

...............................

NEED ANSWERS NOW!! (Reward) brainlest and pointsss

Answers

Answer:

D

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

To obtain this form use the method of completing the square.

Given

f(x) = - 0.6x² + 4.2x + 240 ← factor out - 0.6 from the first 2 terms

     = - 0.6(x² - 7x) + 240

To complete the square

add/ subtract ( half the coefficient of the x- term)² to x² - 7x

f(x) = - 0.6(x² + 2(- 3.5)x + 12.25 - 12.25 ) + 240

      = - 0.6 (x - 3.5)² + 7.35 + 240

     = - 0.6(x - 3.5)² + 247.35

with vertex = (3.5, 247.35 )

The maximum value is the y- coordinate of the vertex

Then

f(x) = - 0.6(x - 3.5)² + 247.35 has a maximum value of 247.35

a) Work out the value of angle x.
X
X=
b) Give reasons for your answer.​

Answers

Answer:

x = 60° (Alternate angles)

Step-by-step explanation:

a) x = 60°

b) Reason: Alternate angles

Answer:x=60

Step-by-step explanation: all angles in a triangle add up to 180 degrees, x is the same as the angle next to it, therefore x=60 degrees

Point R is located at (8, 9). Where is R' after a translation 8 units left and 6 units down?

Answers

Answer is R (0;3)
left is x so 8-8=0
And down is y 9-6=3

Which choice represents the expression below as a single exponential
expression?
7.16.7.17
A. 7.142
B. 7.113.7.113
C. 7.113
D. 711

Answers

Answer:

C) (7.1)^13

Step-by-step explanation:

When you multiply numbers with the same bases but different exponents, the base stays the same, but the exponents get added:

a^x*a^y=a^(x+y)

(7.1)^6*(7.1)^7=(7.1)^(6+7)=(7.1)^13

Therefore, the correct answer is C) (7.1)^13

Answer:

C

Step-by-step explanation:

When multiplying numbers with exponents, you always add the exponents.

7.1^6+7

7.1^13

Hence, C

Hope it helps!

Can you answer this please. NO LINKS

Answers

Answer:

The answer selected is correct

Step-by-step explanation:

Question 5 :)) What is the measure of the missing angle?​

Answers

The answer is 115 because the interior angle is 65 and 115 plus 65 is 180. You want 180 because the angles are opposite and make a straight line

Name the marked angle in 2 different ways.
M
L
J
K

Answers

Answer:

Angle J and angle MJK or maybe right angle....

These are the three ways...

Hope it helps

Step-by-step explanation:

ITS TIMED... please help. f(x) = -3x - 4
h(x) = 11 + 7x
Using the functions defined above, find the following:
f(x) + h(x)

Answers

Answer:

4x+7 I believe but it could be wrong

What is 2/5 divided by 4

Answers

the answer to the question is 0.1

Answer:

1/10 or 0.1

Step-by-step explanation:

You first rewrite the problem as 2/5÷4/1. Then you flip the second fraction for multiplication: 2/5*1/4. Now you multiply both numerators and denominators to get a final total of 2/20 which equals 1/10 or 0.1.

Please helppp fast!!Simplify (4x^5)^2 (x^10)^1/2

Answers

Answer:

(4^2*x7)(x^10.5)

Need help and pls explain the best you can with the answer

Answers

Answer:

D = +/- 12.041 units

Step-by-step explanation:

D =

[tex] \sqrt{} (x2 - x1) {}^{2} + (y2 - y1) {}^{2} [/tex]

[tex] \sqrt{} ( - 5 - 4) {}^{2} + (3 - ( - 5)) {}^{2} [/tex]

[tex] \sqrt{81 + 64} [/tex]

[tex] \sqrt{145} [/tex]

D = +/- 12.041 units

PLEASE HELP ILL GIVE BRAINLIEST SHOW WORK PLEASE

Answers

Answer:

C 28 cm

Step-by-step explanation:

16 ÷ 8 = 2

14 × 2 = 28 cm

pls answer 2,3,5,6 and thank you for helping and pls work it out

Answers

Answer:

2: add 4

3: 6

5: multiply by 2

6: 7

Step-by-step explanation:

10.
Use the tangent ratio to find the size of the angle marked x, correct to the nearest degree.

Answers

36 using the angles replaceable to multiple bc it’s needed

help asap
Classify the triangle as acute, obtuse, or right. Use the sides, 6,12,18, and decide wha
type of triangle it is.

Answers

Answer:

Acute because all angles are less than 90

HELP HELP HELP!!!!!!!

Answers

Answer:

b = 77

Step-by-step explanation:

a² + b² = c²

36² + b² = 85²

1296 + b² = 7225

b² = 7225 - 1296

b² = 5929

[tex]\sqrt{b^2} =\sqrt{5929}[/tex]

b = 77

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