Mathematics College

Helppppp, please!!!!​

Helppppp, Please!!!!

Answers

Answer 1

Answer:

for the mean you have to do formula efx/n other i dont know

Related Questions

Add or Subtract: show your work 30 POINTS

Answers

Step-by-step explanation:

hopefully it is clear and understandable

:)

Let f(x) = 8x3 + 16x2 − 15 and g(x) = 2x + 1. Find f of x over g of x. WILL GIVE BRAINLIEST!

Answers

Answer:

4x² + 6x - 3 remainder -12

Step-by-step explanation:

Given:

(x) = 8x³ + 16x² − 15g(x) = 2x + 1

To find:

f(x) / g(x)

Use long division:

f(x) / g(x) = (8x³ + 16x² − 15) / (2x + 1)

2x + 1  | (8x³ + 16x² − 15

           | 8x³ + 4x²

                     12x² + 0x - 15

                     12x² + 6x

                               -6x - 15

                               -6x - 3

                                      -12

4x² + 6x - 3 remainder -12

f(x)=8x^3+16x^2-15g(x)=2x+1

[tex]\sf \dfrac{f(x)}{g(x)}[/tex]

[tex]\\ \rm\longmapsto \dfrac{8x^2+16x^2-15}{2x+1}[/tex]

Refer to attachment now

Decmial: 0.77 thanks!​

Answers

Answer:

The digit in the tenths place is 10 times as much as the value of the digit in the hundredths place.

Step-by-step Explanation:

0.07 multiplied by 10 gives you 0.7

Prove: 3 log3 81= 4 log4 64​

Answers

Step-by-step explanation:

3log3 3^4=4log4 4^33*4 log3 3=4*3 log4 412 log3 3= 12 log4 412*1=12*1 (loga a=1)12=12

Answer:

h

Step-by-step explanation:

Show work and Evaluate 3/4 + 2/5

Answers

Answer:

23/20

Step-by-step explanation:

Find the common denominator of the 2 fractions (It's 20):

3/4 + 2/5            

Multiply both numerator and denominator by 5 for the first fraction and multiply by 4 for the second fraction:    

15/20 + 8/20        

Add the fractions together:

23/20

probability question
​

Answers

Uhhh I can’t see the Question???

I need to write an expression to represent the volume of this shape

Answers

Answer:

v = 3.14x²y

Step-by-step explanation:

volume cylinder = πr²h

r = 2x ÷ 2 = x

h = y

Answer:

It is 3.14x²y

Step-by-step explanation:

formular:

[tex]{ \bf{V = \pi {r}^{2} h}}[/tex]

r is radius, r = 2x/2 = x

h is height, h = y

[tex]{ \sf{V = (3.14) \times ( {x}^{2} ) \times y}} \\ V = 3.14 {x}^{2} y[/tex]

Which group contains an equivalent percent, decimal, and fraction?
F. 60%, 0.06, 3/5
G. 75%, 7.5, 3/4
H. 90%, 0.9, 9/10
J. 78.5, 0.785, 7/8

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Answer: H. 90%, 0.9, 9/10

Step-by-step explanation: they are all equal

If the 45 animals on the farm have a total of 150 legs, how many cows does farmer Ken have?

Answers

Answer:

195

Step-by-step explanation:

8/6-5/4=
Please help quick

Answers

Answer:

1/12

Step-by-step explanation:

It is 1/12 :0) :) :)

The rectangles are similar. Find x.

Answers

Answer:

x = 7 1/2

Step-by-step explanation:

We can use proportions to solve

12         5

----- = -----

18          x

Using cross products

12x = 18*5

12x = 90

Divide by 12

12x/12 = 90/12

x = 7 1/2

12/18 = 5/x

12x = 18 × 5

12x = 90

x = 90 ÷ 12

x = 7,5 => x = 7 1/2

Find all points on the x-axis that are 14 units from the point (5, -7)

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Answer:

can you submit the coordinet plane?

Step-by-step explanation:

Find the slope of the line graphed below

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Answer:

-4/3

Step-by-step explanation:

To find the slope you do rise over run. The line goes down by four and to the right by three between the two points so the slope is -4/3/

Find k such that 16x2 – 8 /3x+k=0 has a repeated real solution.

Answers

Answer:

k = [tex]\frac{1}{9}[/tex]

Step-by-step explanation:

Using the discriminant

Δ = b² - 4ac

For a repeated real solution then

b² - 4ac = 0

Given

16x² - [tex]\frac{8}{3}[/tex] x + k = 0

with a = 16, b = - [tex]\frac{8}{3}[/tex] , c = k

(- [tex]\frac{8}{3}[/tex] )² - ( 4 × 16 × k) = 0

[tex]\frac{64}{9}[/tex] - 64k = 0 ( subtract [tex]\frac{64}{9}[/tex] from both sides )

- 64k = - [tex]\frac{64}{9}[/tex] ( divide both sides by - 64 )

k = [tex]\frac{1}{9}[/tex]

Point A and Point B are placed on a number line. Point A is located at -20 and point B is 5 less than point A. Which statement about point B is true?

a. It is located at -25 and is to the right of point A on the number line.
b. It is located at -15 and is to right of point A on the number line
c, It is located at -25 and is to the left of point A on the number line.

Answers

Answer:

so, choose c.

Step-by-step explanation:

[tex] - 20 - 5 = - 25[/tex]

{Please see the figure on the picture}

Use the equation v=s+19 to find the value of v when s=2.
V=

Answers

Answer:

21

Step-by-step explanation:

s=2

so, v=2+19

19+2=21

Use the distributive property to simplify each expression 10(9-1)

Answers

Answer:

see below

Step-by-step explanation:

10(9-1)

Distribute

10 * 9  - 10 *1

90 - 10

80

Answer: 80

Step-by-step explanation:

10(9-1) = 90 - 10 = 80

simplify 5 p - 3 - (1 + p) +( 2 - p)​

Answers

Answer:

3p-2

Step-by-step explanation:

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

Answer:

3p - 2

Step-by-step explanation:

[tex]5p - 3 - (1 + p) + (2 - p)[/tex]

[tex]5p - 3 - 1 - p + (2 - p)[/tex]

[tex]5p - 3 - 1 - p + 2 - p[/tex]

[tex]5p - 1p - p[/tex][tex]5p - 1p - 1p[/tex][tex](5 - 1 - 1)p[/tex][tex] = 3p[/tex][tex] - 3 - 1 + 2[/tex]

➡️ [tex] - 4 + 2[/tex]

➡️ [tex] = - 2[/tex]

[tex] = 3p - 2[/tex]

Find the value of this expression if x = 3.
x²– 1/x+1

Answers

Answer:

2

Step-by-step explanation:

x^2 - 1 = 9 - 1 = 8

8 / 3 + 1 = 8/4 = 2

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

2

Step-by-step explanation:

Given, x=3

Now,

x^2 - 1/ x+1

= 3^2-1/3+1

= 9-1/4

=8/4

=2

Which best describes the relationship between the line that passes through the points (–9, –7) and (–12, –2) and the line that passes through the points (1, 9) and (6, 6)?

Answers

9514 1404 393

Answer:

  The lines are neither parallel nor perpendicular. They intersect in the 2nd quadrant.

Step-by-step explanation:

You have provided no descriptions, so we have shown the lines to let you draw your own conclusion regarding the description that best fits.

2. A boy scored the given marks in various class-tests during a term, (each test being marked out of 20): 15, 17, 16, 16, 10, 12, 14, 16, 19, 12, 16. (a) What is his modal marks?​

Answers

Answer:

16 is the number occurring most often in the list.

Step-by-step explanation:

The number of sweets s that each friend gets is the
number of sweets in a box n divided by the number of
friends f the sweets are shared between. Enter a formula
for the number of sweets each friend gets and enter the
number of sweets each friend gets if there are 54 sweets
and 6 friends.

Answers

Answer: 9 sweets/friend

Step-by-step explanation:

s = Number of sweets per friend

n = Number of sweets in a box = 54

f = Number of friends = 6

formula for the number of sweets each friend gets is as follows:

                                n/f = s

Therefore substituting in formula for n=54 and f=6

                                  54/6 = 9 sweets per friend

I’m crying rn I need helppp (number 4 ignore the rest) -1/2 to be left alone like without the x and what happened to the 5/2??

Answers

Step-by-step explanation:

The parallel line will have an equation of the form

[tex]y = -\dfrac{1}{2}x + b[/tex]

We solve for b by plugging in the values of the point (3, -4):

[tex]-4 = -\dfrac{1}{2}(3) + b[/tex]

[tex]\Rightarrow -8 = -3 + 2b[/tex]

Solving for b, we get

[tex]b = -\dfrac{5}{2}[/tex]

Therefore, the equation of the line parallel to 2x + 4y = 10 is

[tex]y = -\dfrac{1}{2}x -\dfrac{5}{2}[/tex]

In standard form we can write

[tex]x + 2y = -5[/tex] or [tex]2x + 4y = -10[/tex]

Which of these is equal to .0625 ??

a. 4 ^ -15

b. 1 / 4^15

c. 16 ^ -2

d. (4 ^ -1) ^ 2

Help please!! I redid my assignment 3 times, and I still didn't get it correct! (The question was to find the 7 ones that equal .0625 , and those are all the ones that I thought didn't equal that)

Answers

The answer is option d.(4^-1)^2

The solution method

(4^-1)^2 ➡️ (1/4)^2 = 0.0625

Don't forget put heart ♥️

What is the equation of a line perpendicular to y = -3x + 4 that passes through the point (-1, 6)?

Answers

Answer:

Equation is 3y = x + 19

Step-by-step explanation:

General equation:

[tex]y = mx + c[/tex]

For slope, m:

[tex]m_{1} \times m_{2} = - 1[/tex]

but m1 is -3:

[tex] - 3m_{2} = - 1 \\ m_{2} = \frac{1}{3} [/tex]

For y-intercept, c:

[tex]y = mx + c \\ 6 = ( - 1 \times \frac{1}{3} ) + c \\ \\ c = 6 + \frac{1}{3} \\ \\ c = \frac{19}{3} [/tex]

equation:

[tex]{ \sf{y = \frac{1}{3}x + \frac{19}{3} }} \\ \\ 3y = x + 19[/tex]

Given f(x) =1/(x^2+4) and g(x) = square root (x+1) Find g(f(x)).

Answers

Step-by-step explanation:

all steps are in the picture above.

Note:if you have any question let me know about.thanks

9514 1404 393

Answer:

  g(f(x)) = √((x²+5)/(x²+4))

Step-by-step explanation:

  [tex]g(f(x))=g(\dfrac{1}{x^2+4})=\sqrt{\dfrac{1}{x^2+4}+1}=\sqrt{\dfrac{1+x^2+4}{x^2+4}}\\\\\boxed{g(f(x))=\sqrt{\dfrac{x^2+5}{x^2+4}}}[/tex]

I prefer this compact form, but some may want the denominator rationalized. This means the expression becomes ...

  [tex]g(f(x))=\sqrt{\dfrac{(x^2+5)(x^2+4)}{(x^2+4)^2}}\\\\\boxed{g(f(x))=\dfrac{\sqrt{x^4+9x^2+20}}{x^2+4}}[/tex]

The difference of 23 and 6 multiplied by 2

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Answer:

23-6=17

17x2=34

Step-by-step explanation:

Please don't report this! I'm sorry if its wrong

Multiply -7/-6 x 7 x 1/3 write in simplest form

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Step-by-step explanation:

Multiply -7/-6 x 7 x 1/3 write in simplest form

12. In the toy factory where you work, you inspect each toy for
defects as it comes off the assembly line and report the
defect ratio at the end of each day. On Monday, you
inspected 938 toys and recorded 67 of them as defective.
What is the ratio of defective toys to the total number of
toys that you inspected?
F.
938
H.
J.
K.
1: 67
1:14
1:13
13:1
14:1

Answers

67:938
But when you reduce this ratio your final answer is 1:14

A: What is the perimeter of HOUSE?
perimeter of HOUSE =


(round to the nearest hundredth - two decimal places)


B: What is the length of OH?

(round to the nearest thousandth - three decimal places)


C: What is the midpoint of OU?


D: Which is longer, OH or EH?


E: What is the perimeter of the triangle HOU?


perimeter of triangle HOU


(round to the nearest hundredth - two decimal points)

Answers

First calculate distances or lengths(Refer to attachment)

A:-

[tex]\\ \sf\longmapsto Perimeter=Sum\:of\:sides[/tex]

[tex]\\ \sf\longmapsto 5.3+9+11+9+9.7[/tex]

[tex]\\ \sf\longmapsto 15+29[/tex]

[tex]\\ \sf\longmapsto 44[/tex]

B:-

Refer to the attchment

C:-

[tex]\\ \sf\longmapsto \left(\dfrac{1+4}{2},\dfrac{1+6}{2}\right)[/tex]

[tex]\\ \sf\longmapsto \left(\dfrac{5}{2},\dfrac{7}{2}\right)[/tex]

D:-

EH>OH

E:-

[tex]\\ \sf\longmapsto Perimeter[/tex]

[tex]\\ \sf\longmapsto 9.7+5.3+9[/tex]

[tex]\\ \sf\longmapsto 24[/tex]

Answer:

The coordinates of the HOUSE:

H(-7, 1), O(1, 6), U(4, 1), S(4, -8), E(-7, -8)Part A

To find the perimeter first find the length of each side:

OH = [tex]\sqrt{(1 +7)^2+(6-1)^2} = \sqrt{64+25} =\sqrt{89}[/tex] ≈ 9.43 unitsOU = [tex]\sqrt{(4-1)^2+(1-6)^2} = \sqrt{9+25} = \sqrt{34}[/tex] ≈ 5.83 unitsUS = 1 - (-8) = 9 unitsSE = 4 - (-7) = 11 unitsEH = 1 - (-8) = 9 units

The perimeter is:

P = 9.43 + 5.83 + 9 + 11 + 9 = 44.26 unitsPart BOH = 9.43 units (see part A)Part C

Use midpoint formula:

x = (4 + 1)/2 = 2.5y = (1 + 6)/2 = 3.5

The point is (2.5, 3.5)

Part DOH = 9.43 units > EH = 9 units (see part A)Part E P(ΔHOU) = OH + OU + HU (or SE) = 9.43 + 5.83 + 11 = 26.26 units
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