Please help me with this question and explain it

I'll do these in order

1.

A. -2

B. -4

C. y=-2x-4

2.

A. +6

B. 0

C.y=6x

Answer:

Bruh watashi wa sudeni sore ga totemo tanjunda to omoimasu! !

Answer:

answer is (a+c)/2 don't add parentheses for the answer

Step-by-step explanation:

Answer: A The mean would increase

Step-by-step explanation:

If the smallest numebr dropped, then the numebr would get increased, since there is no more smallest, and the new smallest is $9.25.

Answer:

Options (2) and (4)

Step-by-step explanation:

Option (1)

The slope of the graph is 60.

From the graph attached,

Slope = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]

         = [tex]\frac{-210}{3.5}[/tex]

         = - 60

False.

Option (2)

y-intercept gives the initial distance, in miles from Exit 34.

True.

Option (3)

y-intercept of the graph is 3.5

Since, y-intercept of the graph is 210.

Therefore, Option (3) is False.

Option (4)

Slope gives the rate, in miles per hour, at which the distance to Exit 34 changes over time.

True.

Answer

two is the answer

Answer: 20%

Step-by-step explanation:

(part / whole) * 100

(3 / 15) * 100 = 20%

The skirts have been reduced to 20% of their original price.

You are looking for the percentage of the original price that the new price is. This means that you are looking for what percentage of $15 that $3 is:

= New price / Original price x 100%

= 3 / 15 x 100%

= 1/5 x 100%

= 20%

The skirts have therefore been reduced to 20% of their original price.

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Answer:

x=y-9....1

5x-6y=-1.....2

putting the value of x in eqn 2

5y-45-6y=-1

-y=44

y=44

Answer:

Step-by-step explanation:

1. A newborn giraffe weighs about 65 kilograms. How much does it weigh in grams?

2. The average height of a female giraffe is 4.6 meters. What is her height in centimeters?

3. The capacity of a beaker is 0.1 liter. Convert this to milliliters.

4. A pig weighs 9.8 pounds. Convert the pig’s weight to ounces.

5. A marker is 0.13 meters long. What is the length in millimeters?

Answer:

1 pound

Step-by-step explanation:

The plot of a function f(x) is symmetric across the y-axis if it is even, meaning f(-x) = f(x) for all x in the function's domain.

The answer is then A because

(-x)² = (-1)² x² = x²

|-x| = |-1| |x| = |x|

cos(-x) = cos(x)

The answer is not

• B because sin(-x) = -sin(x) and (-x)³ = (-1)³ x³ = -x³

• C because -x ≠ x and again because of x³

• D because 1/(-x) = -1/x and again because of sin(x)

Answer:

he can make 1 and  1/2 cups

Step-by-step explanation:

Answer:

2 I think I hope it is right?

Answer:

A the answer is A

Step-by-step explanation:

break them apart put 18 into 10 and 8 and multiply it by 30 10 x 30 equals 300

30 x 8 equals 240 add them up you get 540  do the same with next one  break 15 into 10 and 5 multiply 20 by 5 and you get 100 multiply 20 by 10 and you get 200 add them up and you get 300 now add the final numbers up and you get  840

Question:

"Convert F2 from hexadecimal to binary."

Answer:

11110010

Step-by-step explanation:

Hex F2 to decimal explained:

The value of HEX F2 in decimal is 242.

The value of HEX F2 in binary is 11110010.

2 2 X 160 = 2

F 15 X 161 = 240

HEX F2 = 242

The binary value is: 11110010

A hexadecimal number has base 16 (0,1,2,3,4,5,6,7,8,9 A,B,C,D,E,F).

basic hex to a decimal conversion table

Hex 0 1 2 3 4 5 6 7 8 9 A B C D E F

Decimal 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

HOPE THIS HELPS!

PLEASE MARK BRAINLIEST IF THIS HELPED YOU LEARN! :)

Answer:

[tex]\frac{3}{4}[/tex]

Step-by-step explanation:

You plug in the points in this equation [tex]\frac{y2-y1}{x2-x1}[/tex]

So [tex]\frac{-2-(-5)}{6-2}[/tex] = [tex]\frac{3}{4}[/tex]

Answer:

4.397 * 10⁹

Step-by-step explanation:

(3.700 * 10⁹) + (6.970 * 10⁸)  = (3.700 * 10 * 10⁸ ) + (6.970 * 10⁸)

                                             = (37.00 * 10⁸) + (6.970 * 10⁸)

                                             = (37.00 + 6.970) * 10⁸

                                             = 43.97 * 10⁸

                                             = 4.397 * 10 * 10⁸

                                              = 4.397 * 10⁽¹⁺⁸⁾

                                              = 4.397 * 10⁹

Answer:

The answer is A

Step-by-step explanation:

Answer:

210

Step-by-step explanation:

Answer:

Y

=

3

cos

(

2

x

-

1

)

Use the form

to

cos

(

b

x

-

c

)

+

d

to find the variables used to find the amplitude, period, phase shift, and vertical shift.

to

=

3

b

=

2

c

=

1

d

=

0

Find the amplitude

|

to

|

.

Amplitude:

3

Find the period using the formula

2

π

|

b

|

.

Tap for more steps ...

Period:

π

Find the phase shift using the formula

c

b

.

Tap for more steps ...

Phase shift:

1

2

Find the vertical displacement

d

.

Vertical displacement:

0

List the properties of trigonometric functions.

Amplitude:

3

Period:

π

Phase shift:

1

2

(

1

2

on the right)

Vertical displacement:

0

Select some points on the graph.

Tap for more steps ...

x

F

(

x

)

1

2

3

π

4

+

1

2

0

π

2

+

1

2

-

3

3

π

4

+

1

2

0

π

+

1

2

3

The trigonometric function can be drawn using the amplitude, period, phase shift, vertical shift, and the points.

Amplitude:

3

Period:

π

Phase shift:

1

2

(

1

2

on the right)

Vertical displacement:

0

x

F

(

x

)

1

2

3

π

4

+

1

2

0

π

2

+

1

2

-

3

3

π

4

+

1

2

0

π

+

1

2

3Y

=

3

cos

(

2

x

-

1

)

Use the form

to

cos

(

b

x

-

c

)

+

d

to find the variables used to find the amplitude, period, phase shift, and vertical shift.

to

=

3

b

=

2

c

=

1

d

=

0

Find the amplitude

|

to

|

.

Amplitude:

3

Find the period using the formula

2

π

|

b

|

.

Tap for more steps ...

Period:

π

Find the phase shift using the formula

c

b

.

Tap for more steps ...

Phase shift:

1

2

Find the vertical displacement

d

.

Vertical displacement:

0

List the properties of trigonometric functions.

Amplitude:

3

Period:

π

Phase shift:

1

2

(

1

2

on the right)

Vertical displacement:

0

Select some points on the graph.

Tap for more steps ...

x

F

(

x

)

1

2

3

π

4

+

1

2

0

π

2

+

1

2

-

3

3

π

4

+

1

2

0

π

+

1

2

3

The trigonometric function can be drawn using the amplitude, period, phase shift, vertical shift, and the points.

Amplitude:

3

Period:

π

Phase shift:

1

2

(

1

2

on the right)

Vertical displacement:

0

x

F

(

x

)

1

2

3

π

4

+

1

2

0

π

2

+

1

+

1

2

0

π

+

1

2

3

Answer:

A .x+y=150 y=x+80

B. x=35 y=115

x + (x + 80) = 150

2x + 80 = 150

2x = 70

x =35 practicing the guitar

then put x back in to solve for y

C. no because that is a whole 10 minutes more so it would be for 160 minutes of practice instead.

Step-by-step explanation:

this is my first time answering a question so hope it helps :)

A pair of linear equations to show the relationship between the number of minutes ;

x=Max practices the guitar

y= the number of minutes he practices the piano

x+y=150

y=x+80

The time does Max spend practicing the piano every day:

Subsitute x back in to solve for y.

x+y=150  

35+y=150

y=115

No , it is not possible because that is a whole 10 minutes more so it would be for 160 minutes of practice instead.

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Answer:

3 feet 11 inches

Step-by-step explanation:

Answer:

ok is that supposed to be on top of the number because if so it is 8'10-4'11=

Step-by-step explanation:

1069547520 but I am not sure if that could be the slightest bit correct you could try it thought :D

Answer:

3.024 is greater.

Step-by-step explanation:

3.05 is greater because it expanded is 3.050 vs. 3.024. 3.024 is closer to 1, so it's greater.

Answer:

[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]

[tex]x=8,\:y=5[/tex]

Step-by-step explanation:

Given the system of linear equations

[tex]7x-y=51[/tex]

[tex]x+3y=23[/tex]

solving by the elimination method

[tex]\begin{bmatrix}7x-y=51\\ x+3y=23\end{bmatrix}[/tex]

[tex]\mathrm{Multiply\:}x+3y=23\mathrm{\:by\:}7\:\mathrm{:}\:\quad \:7x+21y=161[/tex]

[tex]\begin{bmatrix}7x-y=51\\ 7x+21y=161\end{bmatrix}[/tex]

[tex]7x+21y=161[/tex]

[tex]-[/tex]

[tex]\underline{7x-y=51}[/tex]

[tex]22y=110[/tex]

so

[tex]\begin{bmatrix}7x-y=51\\ 22y=110\end{bmatrix}[/tex]

now solving for y

[tex]22y=110[/tex]

[tex]\mathrm{Divide\:both\:sides\:by\:}22[/tex]

[tex]\frac{22y}{22}=\frac{110}{22}[/tex]

[tex]y=5[/tex]

[tex]\mathrm{For\:}7x-y=51\mathrm{\:plug\:in\:}y=5[/tex]

[tex]7x-y=51[/tex]

[tex]7x-5=5[/tex]

[tex]7x=56[/tex]

[tex]\mathrm{Divide\:both\:sides\:by\:}7[/tex]

[tex]\frac{7x}{7}=\frac{56}{7}[/tex]

[tex]x=8[/tex]

[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]

[tex]x=8,\:y=5[/tex]

Answer:

The slope, a, of the inverse function is  3 , and the x-intercept of the inverse function is at x =  -2

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

Possible rational zeros are of the form ...

  ±{divisor of the constant term}/{divisor of the leading coefficient}

__

1. Rational zeros will be one of ±{1, 2, 3, 6, 9, 18}/{1, 2}, so will be ...

  {±1/2, ±1, ±3/2, ±2, ±3, ±9/2, ±6, ±9, ±18}

__

2. Rational zeros will be one of {±1, ±2, ±3, ±4, ±6, ±8, ±12 ±24}.

__

3. The pairs of coefficients suggest factoring by pairs:

  f(x) = (2x^3 +2x^2) -(8x +8) = 2x^2(x +1) -8(x +1) = 2(x^2 -4)(x +1)

  f(x) = 2(x -2)(x +2)(x +1)

Zeros of f(x) are 2, -2, -1, values of x that make the factors zero.

__

4. The sum of coefficients is zero, so x=1 is a zero. Factoring that out by any of several means, you find ...

  f(x) = (x -1)(x^2 +2x -8)

The quadratic is factored by looking for factors of -8 that have a sum of 2. (4 and -2 are those)

  f(x) = (x -1)(x +4)(x -2)

Zeros of f(x) are 1, -4, 2.

_____

The attached graph confirms our factoring of the polynomials of questions 3 and 4. For cubic and higher degree, I find a graphing calculator to be quite helpful finding zeros.

Answer:

f(x)= 2x^3 + 2x^2 - 8x -8

4. f(x)= x^3 + x^2 - 10x + 8

it will take about 3 hours to get across the rock

Answer:

statistical hypothesis.

Step-by-step explanation:

A statistical hypothesis has the central objective of assisting in a decision-making process about one or more populations in relation to the sample data, allowing the observance of whether the information found in the samples will support the statistical hypothesis.

It is necessary to know concepts of mathematical probability to perform the tests, the most used models for this purpose are the fisher method, by Neyman-Pearson and Bayes.

The variables used in a statistical hypothesis are: the Null Hypothesis, the one that is assumed to be the true one, the Alternative Hypothesis, the one that is used when there is no statistic to analyze the hypothesis given as true, the Type I Error, related to the probability of rejection of the null hypothesis, and the Type II Error, which is the probability of rejection of the alternative hypothesis if it is true.

Answer:

3rd option

Step-by-step explanation: